Clarify H3 prompt styles and full scene replacement instructions

feat: automatically prepare verified temporal kernels on first use
feat: use optional one-pass Comfy Kitchen temporal kernels
2026-10-23 12:53:21 +00:00 · 2026-10-23 07:36:01 +00:00 · 2026-10-23 06:21:44 +00:00 · 2026-10-23 05:30:34 +00:00 · 2026-10-23 05:10:20 +00:00 · 2026-10-23 04:44:40 +00:00
59 changed files with 16851 additions and 1113 deletions
@@ -0,0 +1,192 @@
+# Experimental H3 native temporal alignment
+
+Matches ai-toolkit branch [`feat/h3-native-temporal-motion`](https://github.com/alisson-anjos/ai-toolkit/tree/feat/h3-native-temporal-motion), implementation `native_temporal_v1` (commit e0ecf3a). This mode retains a native video reference, aligns its temporal RoPE coordinates with the target, and softly penalizes target queries attending to distant guide times. It preserves native image-reference coordinates and native spatial geometry. It does not add learned weights or load a LoRA.
+
+Existing Add Guide motion-transfer LoRAs were trained under a different conditioning contract, but the step-10500 example below shows useful transfer to this native temporal mode. This is an experimental observation, not a guarantee for every LoRA. CPU math/routing tests alone do not validate video quality.
+
+## Video comparison: an Add Guide-trained LoRA with native temporal alignment
+
+[**Play the synchronized side-by-side video**](https://github.com/alisson-anjos/ComfyUI-BFSNodes/raw/refs/heads/feat/h3-native-temporal/docs/media/h3_native_temporal_comparison.mp4)
+
+All six columns play together in one 15-second video, starting at the beginning of each supplied export. From left to right:
+
+1. Original guide.
+2. Step-10500 motion-transfer LoRA + native temporal alignment, with guide scale **1.0**.
+3. The same step-10500 LoRA + native temporal alignment, with guide scale **0.5**.
+4. The same step-10500 LoRA + guide latents / Add Guide.
+5. The same step-10500 LoRA + native reference, without the temporal patch.
+6. Base model + native reference, without a LoRA or temporal patch.
+
+The temporal columns are labeled **NEW**. The footer includes the character and setting reference thumbnails extracted from the supplied exports. The user confirmed that all supplied runs used the **same seed**. At guide scale 0.5, character appearance remains consistent in the reviewed samples, but some source poses are reproduced less closely than at 1.0 (for example, the raised-arm gesture around 3.7 seconds). Other generation settings were not fully captured in the exports.
+
+**Apparently, a LoRA trained with guide latents can also work with this new native temporal method.** In this example, the step-10500 Add Guide-trained LoRA follows the source poses and camera framing with the temporal patch, while maintaining the reference dog's white T-shirt and jeans through the sampled beginning, middle and end. Its Add Guide result also follows the performance. Native reference without the temporal patch preserves the character more successfully with this LoRA than without it, but reproduces the choreography less closely. The base native-reference result loses the reference T-shirt.
+
+A plausible explanation is that the LoRA's learned appearance and motion-transfer behavior can be reused through shared model weights, while the runtime patch supplies temporal correspondence through native reference attention. This example does not isolate that mechanism experimentally or establish universal compatibility. The temporal mode still uses native video-reference latents; it does **not** inject Add Guide latents.
+
+**The reported identity drift concerns the separate, fresh native-temporal LoRA at step 750, not the step-10500 LoRA shown here.** The 750 checkpoint is not included in this comparison. Comparing those checkpoints would also compare different training histories and training durations.
+
+The requested background replacement is partial: source architecture and layout remain mixed with the new street reference. The seed is confirmed equal by the user, but these supplied exports do not include complete prompt and configuration metadata, so this is a qualitative demonstration rather than a controlled benchmark. Pixel difference and PSNR against the guide cannot rank replacement quality when character and background changes are intentional. The 30 fps comparison export does not establish the model's generation frame rate.
+
+## Standalone native workflow
+
+1. Load the native MiniMax H3 base and the native-temporal LoRA.
+2. Pass the guide as `<Video 1>` to **MiniMax H3 Reference to Video**, alongside any number of identity reference pictures supported by that native node. Picture and video numbering are independent.
+3. Place **BFS MiniMax H3 Native Temporal Alignment (Experimental)** on the MODEL path, after LoRA loading. Route its MODEL output to your guider/sampler. Keep Reference to Video's positive and AV latent outputs connected normally.
+4. Select `motion_video_index = 1` (or the actual `<Video N>` supplying motion).
+5. Use the same 24 fps frame window for guide and output. H3 may trim frame counts to its supported cadence; use a matching valid count such as 107.
+
+Do not add Add Guide, first-frame guides, VSA, SLA, or unknown attention/block replacements. Model Sparse Attention with sol-attn is experimentally supported from 1.115.14; see its limitations below. The official Model Attention Backend node is supported from 1.115.13; see the Kitchen section below. The node raises a clear error for incompatible layouts and temporal lengths instead of silently stretching motion. Source video audio is supported by native packing but is not temporally biased by this patch. For CFG paths, every conditioning branch evaluated by the patched model must retain the native motion reference; an empty negative branch without references cannot provide its timeline. Training preview uses CFG 1.
+
+## Planner
+
+In **BFS Shot H3 Conditioning** (Advanced or Simple), choose:
+
+```text
+guide_mode = native temporal alignment (experimental)
+```
+
+Connect MODEL from your LoRA loader to the conditioning node, then connect the conditioning node's MODEL output to the guider. Advanced keeps its existing output order. Simple appends MODEL after positive/latent/prompt; old links keep their indices. Reload older nodes or recreate them if the new socket does not appear.
+
+The shot is encoded as native `<Video 1>`, with identity pictures unchanged. The patch is applied separately to the returned model for each shot, and the current shot's packed temporal grid is used at sampling. Use 24 fps, first_frame none, mask_guide off and continuity off. Full-frame or ordinary native generation masks may still be used; masks do not create a temporal guide. Colored source overlays are retained if enabled, but color/mesh datasets have not yet been validated with this fresh experiment.
+
+The Planner option uses the training defaults. To tune the policy manually, instead choose the ordinary `native reference video (Video 1)` conditioning mode and place the standalone node on the model path. Never install both patches on the same model path.
+
+## Exact policy
+
+Only target-video query to selected-motion-video key edges receive:
+
+```text
+score -= min(strength * (max(abs(t_target - t_guide) - window_seconds, 0) / falloff_seconds)^2, max_penalty)
+```
+
+Defaults: strength 2.0, window 0.20 s, falloff 0.25 s, maximum penalty 6.0. Set strength 0 to test temporal RoPE alignment alone. Bypass the node to test fully native baseline. Text, image references, target self-attention, reference audio, and token-refiner attention retain their normal behavior.
+
+As of 1.115.11 the default backend is **flash partitions (no compile)**: it uses native CUDA FlashAttention with log-sum-exp outputs, positive partition merging and bounded frame chunks. No dense S×S bias tensor or torch.compile is used in this backend. CUDA FP16/BF16 and PyTorch's native FlashAttention-with-LSE primitive are required. The original compiled FlexAttention remains selectable for comparison. Start with model compilation/malloc graph optimizations disabled until validated on your local ComfyUI build.
+
+Runtime confirmation:
+
+```text
+[BFS H3 native temporal] native_temporal_v1: <Video 1>, ... motion rows; temporal RoPE aligned; soft window=0.2s strength=2.0 cap=6.0; images remain native; Add Guide OFF
+```
+
+This log confirms the patch ran, not that visual motion or identity quality is correct.
+
+## Validation
+
+Tests compare an audited native ComfyUI layout with positions exported by the actual training implementation, including image references and reference audio. They verify original conditioning/layout immutability, temporal-length rejection, attention score math/output shapes, token-refiner fallback, per-model routing and incompatible patches. Planner tests verify native-video conditioning and returned MODEL routing. The user has since reported completed RTX 5090 model evaluations; the timings and limitations are documented in the illustrated explanation. Full visual-quality validation remains incomplete. The active training process is not restarted or modified by this source change.
+
+
+## Performance changes in 1.115.11
+
+See the [illustrated Flash Partitions explanation](docs/H3_FLASH_PARTITIONS.md) for attention scope, derivation, log-sum-exp merging, measurements and limitations.
+
+The temporal rule and RoPE policy are unchanged. For motion keys, the modified softmax weight is decomposed exactly as `exp(-cap) + (exp(-penalty) - exp(-cap))`. The first term is ordinary attention over all motion keys. The positive correction is zero for distant times and can be computed with short per-frame batches. Non-motion keys keep weight one. All partitions are recombined with their log-sum-exp normalizers. This is not a hard temporal window or sparse approximation. BF16 partition merging has normal floating-point rounding differences; the small CUDA comparison against SDPA measured relative output error 0.00452.
+
+A synthetic long-sequence benchmark on RTX PRO 6000 Blackwell / PyTorch 2.12.0+cu130, 107126 tokens, 8 heads, head dimension 128 measured approximately 0.628 s for original FlexAttention, 0.422 s for Flash partitions and 0.327 s for unmodified native FlashAttention. Training was running concurrently, so these are indicative isolated-kernel timings, not whole-model inference results or RTX 5090 speed guarantees. Small sequences have additional partition-launch overhead and can favor FlexAttention. No full-model GPU generation is claimed here.
+
+Standalone node: `attention_backend` selects the implementation. Planner conditioning: `native_temporal_backend` selects it. Neither setting loads a LoRA or changes its weights. Defaults select Flash partitions; choose `flex (original)` for an A/B comparison.
+
+Planner `native_guide_scale` defaults to 1.0 for compatibility. Try 0.5 on VRAM-constrained GPUs: it reduces only the motion-reference spatial dimensions (about four times fewer guide tokens), keeping all timestamps/frames, output dimensions and identity images unchanged. This changes the visual detail supplied by the guide and must be evaluated for quality. In standalone workflows resize only the motion video before Reference to Video to get the same effect.
+
+The console logs the first attention's input shape and completion time and the first two full model evaluation times. If attention is fast but a full model evaluation remains slow, investigate model loading/offload and the remaining blocks rather than assuming compilation. These timings synchronize CUDA at those diagnostic points only. The active training code and its backend are unchanged.
+
+## One-pass native Kitchen kernels (1.115.16)
+
+**From 1.115.17, BFS prepares the one-pass extension automatically on first use of Kitchen/sol-attn on supported Linux x86_64 SM120 systems with a driver supporting CUDA 13.** It downloads a fixed release into ComfyUI’s user cache, verifies embedded SHA256 hashes and ABI/architecture, and activates it in that execution. No pip install, package replacement or sampling-time compilation is required. Other systems retain the compatibility backends or can use an explicitly built manual overlay.
+
+For an explicit installation or source build, use the [Kitchen fork's setup guide](https://github.com/alisson-anjos/comfy-kitchen/blob/feat/h3-native-temporal/H3_NATIVE_TEMPORAL_KERNELS.md). An [experimental Linux x86_64 SM120 prebuilt](https://github.com/alisson-anjos/comfy-kitchen/releases/tag/h3-native-temporal-kernel-v1) is available, including SHA256SUMS, so sampling need not compile anything. RTX 5090 shares SM120 with the tested RTX PRO 6000, but full video behavior/performance on the 5090 still requires validation. The installer adds a separate temporal module/library while preserving ordinary Kitchen's `_C` and operators. Source builds use `nvcc` explicitly; no per-shape torch.compile is used.
+
+Keep the existing MODEL wiring and native temporal guide mode. Model Attention Backend's Kitchen choice selects native dense when available. Model Sparse Attention's sol-attn choice selects native Sol during its eligible sparse window; its dense fallback retains the temporal policy too. No new UI switch is required. Console confirmation:
+
+```text
+Kitchen ONE-PASS dense kernel ACTIVE
+Kitchen ONE-PASS sol kernel ACTIVE
+```
+
+Both kernels evaluate the same query-dependent bounded temporal penalty inside their native score/softmax work. Dense INT8 quantizes once and runs one attention launch, using exact constant-tile shortcuts plus per-score handling at mixed boundaries. Sol preprocesses/routes/consumes once with the penalty fused into its exact consumer. All conditioning keys remain exact for Sol, and its remaining video keys retain the usual sparse/pooled approximation. Sol still has its normal multi-kernel stages: "one pass" means one attention pipeline, not literally one CUDA launch total. The streaming QKV producer remains bypassed by the current BFS integration.
+
+Synthetic isolated BF16 attention `[1,56,42836,128]`, 22 latent frames, 7,062 guide rows; RTX PRO 6000 Blackwell, PyTorch 2.12.0+cu130, Kitchen 0.2.35, concurrent training, one warmup plus one timed evaluation:
+
+| Backend | Seconds |
+| --- | ---: |
+| Flash Partitions | 0.4232 |
+| Kitchen dense, earlier frame-wise path | 0.5413 |
+| **Kitchen dense, one-pass kernel** | **0.2463** |
+| sol-attn, earlier frame-wise path | 2.6752 |
+| **sol-attn, one-pass kernel** | **0.2163** |
+
+These are not full-model/video or RTX 5090 timings. Full video speed can still be limited by offloading and other work. INT8 and Sol are approximate, so these measurements do not establish visual quality or dense-equivalent output.
+
+GPU checks covered FP16/BF16, partial frames/tiles, nonuniform timestamps, zero strength/cap, the real BFS dense/Sol entry points and different policies on concurrent streams. Dense relative output norm error versus FP32 was approximately 1.2–1.6% in small cases; Sol with every key exact approximately 1.1–1.4%. Native one-pass Sol versus the same native pipeline repeated per frame differed by at most about 0.0022% in those initial cases. Each BFS bridge made one native API call. [Recorded diagnostics](docs/benchmarks/h3_onepass_temporal_kernels.json) and the Kitchen fork's source document the scope. Full ComfyUI generated-video validation remains pending.
+
+The sections below retain the earlier compatibility implementations and measurements for comparison. The active training process/backend is unchanged.
+
+## Automatic first-use setup (1.115.17)
+
+Choose Kitchen or sol-attn normally and run the native temporal node. On supported Linux x86_64 / NVIDIA SM120 / CUDA-13-driver systems, it prepares the extension during node execution when the model's load device is known, before sampling. A lazy fallback can prepare it on the first attention call too. The ordinary Flash/Flex path does not request an installation.
+
+The default cache is `ComfyUI user directory/bfs/h3_temporal_kernels/`; standalone use falls back to `~/.cache/bfsnodes/h3_temporal_kernels/`. Only the pinned Python API (~10 KB), SM120 library (~3.3 MB), LICENSE and NOTICE are downloaded. The implementation writes to its own cache, not `site-packages`, and leaves ordinary Kitchen's `_C` untouched. Existing compatible manual overlays are preferred.
+
+Security/correctness properties: immutable source commit and embedded hashes; bounded download sizes; temporary downloads replaced atomically only after SHA256 validation; native ABI and GPU architecture checks before Python entry-point execution; thread/process installation locks; one setup attempt per device/cache location per process. An incomplete, incompatible or offline first installation logs its reason and retains the previous backend. A verified cache works in a new process without network access. No model, prompt or reference data is uploaded.
+
+Expected console messages:
+
+```text
+First-use setup: downloading the verified one-pass extension (~3.3 MB). No compilation or pip install.
+Verified one-pass extension ready: ...
+Kitchen ONE-PASS dense kernel ACTIVE
+# or: Kitchen ONE-PASS sol kernel ACTIVE
+```
+
+The addon activates without a second restart during that first workflow. Restarting ComfyUI is still required after updating BFS's own Python code. `BFS_H3_TEMPORAL_AUTO_INSTALL=0` disables automatic setup; `BFS_H3_TEMPORAL_CACHE_DIR=/path/to/cache` chooses another cache location. For a failed setup, restart to retry or use the manual installer linked above. Unsupported systems do not trigger an automatic source build.
+
+A real first-use download, ABI check, and dense/Sol GPU calls passed. A separate fresh process with network requests deliberately disabled reused the verified cache successfully. [Recorded first-use/offline checks](docs/benchmarks/h3_temporal_auto_setup.json).
+
+## Comfy Kitchen and Model Attention Backend (1.115.13)
+
+The official **Model Attention Backend** node is now recognized automatically. Select **comfy kitchen attention** there and route its MODEL through native temporal conditioning to the guider. Its official PyTorch selection is also accepted. Unrelated attention overrides remain incompatible. Model Sparse Attention with sol-attn is supported separately from 1.115.14, as documented below. The runtime MODEL wrapper recognizes a supported dense selection applied before or after the temporal patch; keep only one temporal patch on the path.
+
+With Kitchen selected, the console reports `backend=comfy kitchen (experimental)`. You can also explicitly select this backend in the standalone node or Planner conditioning. Without an upstream Kitchen selection, the existing default remains Flash Partitions. If ComfyUI itself falls back from unavailable Kitchen to PyTorch, the temporal patch does not claim Kitchen was selected. A supported selection from Model Attention Backend takes precedence over the BFS backend selector.
+
+This backend calls `comfy_kitchen.int8_attention(attn_mask=...)` directly. Each target latent frame's spatial queries share one broadcast key bias. Non-target queries use ordinary Kitchen attention, while target-to-guide scores receive the same bounded temporal penalty as the original rule. Native temporal RoPE alignment remains active. It uses no Add Guide injection, no partition log-sum-exp, and no full sequence-by-sequence bias allocation: bias storage is `latent_frames * packed_rows`. It retains full-key attention, not sparse attention. Multiple frame calls can repeat Kitchen quantization work, so compatibility does not imply acceleration.
+
+Initial isolated tests on an RTX PRO 6000 Blackwell with PyTorch 2.12.0+cu130 and comfy-kitchen 0.2.35:
+
+- CPU tests compare the frame-wise policy against the dense mathematical oracle, including zero strength/cap and unchanged non-target queries. Routing tests cover automatic detection of the official dense node.
+- A real CUDA BF16 test at `[1, 2, 1248, 128]` measured relative output norm error **0.01506** against the FP32 oracle, with finite outputs. INT8 quantization is approximate; this is not a visual quality measurement.
+- At `[1, 2, 42836, 128]`, 22 latent frames and 7,062 guide rows, one warmed evaluation measured **0.1043 s Kitchen** versus **0.01739 s Flash Partitions**. This initial Kitchen path was slower. The test used two heads rather than H3's full 56, with concurrent training; these are diagnostics, not end-to-end or RTX 5090 timings. No speed claim or default-backend change follows from this result.
+
+The active training backend is unchanged. Full ComfyUI video output and local performance still require validation. Version 1.115.14 adds a separate experimental sol-attn compatibility path below; SLA and VSA remain unsupported.
+
+## Model Sparse Attention: sol-attn compatibility (1.115.14)
+
+Use **1.115.15 or newer**: 1.115.15 fixes recognition when ComfyUI loads `nodes_sparse_attention.py` under its extensionless absolute file path instead of a dotted module name. The regression test uses extracted official node factories under that loader name.
+
+**This is an experimental compatibility implementation, not a speed optimization.** It automatically recognizes the official **Model Sparse Attention** node with `method = sol-attn`, keeps native temporal RoPE alignment and applies the temporal score penalty through Comfy Kitchen's `sol_attn(key_bias=...)`. The runtime banner identifies `backend=sol-attn frame bias (experimental)`; an `sol-attn ACTIVE` line confirms a sparse call actually ran. Dense windows can use the previously selected dense temporal backend, and the first attention log identifies that actual backend.
+
+Suggested MODEL wiring:
+
+```text
+LoRA loader -> Model Attention Backend (optional dense fallback)
+            -> Model Sparse Attention (sol-attn)
+            -> BFS native temporal node / Shot H3 Conditioning -> guider
+```
+
+The official dense and sparse selections are detected, including owned H3 hooks when a later dense node hides the sparse override. Unrecognized replacements still raise an error. `tau`, `extra_tokens`, `start_percent`, `end_percent`, `dense_blocks` and `min_tokens` retain their sparse-node meanings. Outside eligible sparse calls, the bounded temporal rule still runs through the dense temporal backend. SLA and VSA are rejected.
+
+ComfyUI's usual H3 sparse producer hooks would bypass BFS's temporal score modification. BFS therefore bypasses **only the hooks owned by that exact official sol-attn patch**, in a per-evaluation options copy, and performs attention through its temporal override. Other model clones and unrelated block hooks are not removed. This compatibility path does not retain the native sparse producer's streamed QKV memory optimization.
+
+The public sol-attn kernel currently accepts equal-length Q/K/V and a **key-only** bias; it does not accept the query-dependent temporal bias in one pass. BFS runs one unbiased full-sequence pass for non-target queries, then one full-sequence pass per target latent frame with that frame's key bias, retaining only its target query rows. All conditioning keys are forced into sol-attn's exact branch, since its pooled branch does not honor `key_bias`. This exact-conditioning requirement takes precedence over `sink_conditioning = off`. Other video keys retain sol-attn's routing/pooled approximation. Bias storage is compact `latent_frames * packed_rows`, but sequence computation is repeated `latent_frames + 1` times when the temporal penalty is enabled. This is not equivalent to dense attention and can be substantially slower than Flash Partitions.
+
+Measured diagnostics with PyTorch 2.12.0+cu130, comfy-kitchen 0.2.35, RTX PRO 6000 Blackwell, and concurrent Swap Anything training:
+
+| Packed shape | Flash Partitions | sol-attn frame-wise compatibility |
+| --- | ---: | ---: |
+| `[1, 2, 42836, 128]` | 0.01742 s | 0.1604 s |
+| `[1, 56, 42836, 128]` | 0.4191 s | 2.6490 s |
+
+Both tests used 22 latent frames, 7,062 guide rows, one warmup and one timed evaluation per backend. They measure isolated attention, not full video generation or an RTX 5090. **The initial full-head implementation was about 6.3 times slower; Flash Partitions remains the recommended default.** A fast one-pass implementation would require extending the sparse kernel with query-dependent temporal bias, not merely enabling the existing node.
+
+CPU tests validate the temporal policy against the dense oracle, official-node recognition, owned-hook isolation and dense-window fallback. A CUDA random-input test at `[1, 2, 1248, 128]` produced finite output. Forcing all keys exact gave relative output norm error 0.01332 against FP32; the ordinary tau=1.3 sparse/pooled version gave 0.46068 on those random inputs. The latter is a substantial numerical difference, not evidence of visual quality or a universal model error. Real H3 video quality still requires evaluation. Diagnostics are recorded in [the initial sol-attn benchmark data](docs/benchmarks/h3_sol_temporal_initial.json).
+
+Neither this feature nor its tests change the active training backend.
@@ -142,3 +142,84 @@ Sidecar and phase have CPU geometry/rotary parity tests, including mixed image,
 video and audio, but no full pretrained H3 quality validation yet. They distinguish
 sources; they do not guarantee the same face. See the
 [training configuration guide](https://github.com/alisson-anjos/ai-toolkit/blob/minimax-h3-latent-guides/H3_REFERENCE_ROPE.md).
+
+
+## Video context in CLIP with aligned guide latents
+
+Select **aligned guide + CLIP video context** in **BFS Shot H3 Conditioning**
+(or its Simple variant). Qwen receives only the CURRENT SHOT as `<Video 1>` at
+2 fps with real timestamps, using the same shot interval passed to Add Guide.
+It does not receive the full source video on every shot. The original shot frames
+provide visual context even when source blur modifies the aligned latent guide.
+Images retain their `<Picture 1>` through `<Picture N>` order and native image
+reference latents. Planner and the new standalone node allow up to 100 pictures
+(the Comfy autogrow capacity); available model context and memory can limit this.
+The original H3 node keeps its own unchanged input limits.
+
+The shot itself enters the diffusion model only as aligned `minimax_keyframes`
+through Add Guide; the new mode does not create a native `minimax_refs` video block
+for it. Its Qwen embeddings still travel in `positive`. Explicitly enabling the
+separate native masked-region video reference adds that as `<Video 2>`.
+
+For a native workflow, use **MiniMax H3 Reference to Video — Guide 0 CLIP Context
+(BFS)** in place of **MiniMax H3 Reference to Video**:
+
+1. Connect your source guide to **guide_video_0**, and pictures to `ref_images`.
+   `0` identifies the input's special role; its prompt token is `<Video 1>` because
+   H3 numbers video tokens from 1. Only this guide is CLIP-only.
+2. Optional `ref_videos` remain ACTUAL native video references, receiving both Qwen
+   encoding and native reference latents. With guide 0 connected they are
+   `<Video 2>`, `<Video 3>`, `<Video 4>`; without it native numbering starts at 1.
+   Up to 3 actual reference videos are available, as in the original node.
+3. Connect the returned `positive` and target `latent` to **MiniMax H3 Add Guide**,
+   with the SAME guide frames, VAE and `frame_idx = 0`.
+4. Feed Add Guide's `positive` and the target `latent` to your sampler.
+
+Video inputs use the native 24-fps convention, are trimmed to the requested target
+length, and round down to the native 17*k+5 frame grid. There is no separate 15s
+hard cap in this helper; practical context/memory and checkpoint training limits
+still apply. Native reference soundtracks remain paired to their `ref_video_N`
+input, not to guide 0. Supply guide audio through Add Guide.
+The helper resizes only the guide frames sampled for Qwen and never VAE-encodes
+that guide as a native video reference. Images, actual reference videos and audio
+retain the native implementation. Target latent starts empty; Add Guide supplies
+aligned motion. The BFS mode performs the context and aligned-guide steps
+internally; Shot Join only assembles/composites the generated outputs.
+
+Example: `<Subject 1> comes from <Picture 3> and follows the blond performer in
+the yellow shirt in <Video 1>. <Subject 2> comes from <Picture 1> and <Picture 2>
+and follows the orange-haired performer in the white shirt in <Video 1>. Keep
+these assignments through crossings and occlusions.` A picture need not mean a
+separate person; multiple images can define one identity, and there can be N
+assigned subjects/reference assets within the available context.
+
+Existing modes and defaults are unchanged. Qwen encoding cost and text context
+length increase. Checkpoints trained with `guide_latent_only` did not see the
+source video in Qwen: this is an experimental inference option, not a demonstrated
+identity-binding improvement. GPU and visual validation remain for the user's
+local workflow.
+
+
+### Guide sampling rate and console evidence
+
+`clip_video_fps` is available on both BFS conditioning variants and the Guide 0
+node. Default is 2 fps; range is 0.5–24 fps, capped to the source frame rate
+without duplicating frames. It changes guide sampling in Qwen only, not the
+aligned guide, output fps, or native reference-video sampling. Try 4 or 8 fps
+against 2 fps with the same shot, prompt, references, seed and sampler settings.
+Native H3 timestamps are retained; higher sampling rates are an experiment, not
+a guarantee of stronger identity binding.
+
+Console messages with `[BFS H3 CLIP context]` report the input/used frame count,
+requested/effective fps, sent RGB frames, dimensions and first/last timestamps.
+A second message confirms that the tokenizer actually emitted H3 video vision
+blocks; an incompatible CLIP fails explicitly rather than silently ignoring the
+video. The final message appears only after Qwen encoding returns, with elapsed
+time and conditioning shapes. Qwen can pad an odd sample count to pairs.
+These logs confirm the conditioning path ran, not visual quality.
+
+Compare `aligned guide (Add Guide)` against `aligned guide + CLIP video context`
+with all other settings fixed to assess whether video context changes the result.
+Use a fresh sampler execution (Planner cached renders may otherwise return old
+results); the CLIP-context logs only appear when conditioning actually executes.
+Compare 2/4/8 fps separately to isolate the sampling-rate effect.
@@ -139,8 +139,12 @@ workflow once per shot, and join the results back with the original timing and s
  every node downstream runs once per shot.
 - **BFS Shot Unpack** — guide frames, references, prompt and length of one shot, for any model.
 - **BFS Shot H3 Conditioning** — MiniMax H3 conditioning for one shot with the native nodes
-  (aligned guide and/or native reference video).
- **BFS Shot Join** — concatenates, trims to the true lengths, cross-fades soft joins, returns audio.
+  (aligned guide, native reference video, or aligned guide + CLIP video context).
+- **MiniMax H3 Reference to Video — Guide 0 CLIP Context (BFS)** — lets Qwen see the video
+  guide at 2 fps without native guide video-reference latents; use Add Guide separately for motion.
+  See [H3 guide modes](MINIMAX_H3_GUIDES.md#video-context-in-clip-with-aligned-guide-latents).
+- **BFS Shot Join** — concatenates, trims to the true lengths, cross-fades soft joins, returns audio. With `comparison` on, its `guide` output is the original video frame for frame.
+- **BFS Video Compare** — one player for two videos (Join's `guide` and `images`): wipe ↔ / ↕, overlay or side by side, any of guide / target / difference on top, plus a per-pixel difference map and the difference per frame (click to jump).

 **Cast (1.49.0)**: *Find people* tracks faces through the video (InsightFace) and groups them
 into people. Link each person to a reference and every shot uses the reference of the person
@@ -191,3 +195,13 @@ See [setup, workflow template, compatibility and validation](MINIMAX_H3_GUIDES.m

 BFSNodes **1.47.0** adds optional MiniMax-H3 overlap/sidecar source-phase RoPE and
 **MiniMax-H3 Identity Reference + RoPE (BFS)**. See [the H3 guide](MINIMAX_H3_GUIDES.md#experimental-reference-layouts-and-source-phase-1470).
+
+Experimental native temporal motion-transfer inference (standalone node and Shot Conditioning mode): see [H3_NATIVE_TEMPORAL.md](H3_NATIVE_TEMPORAL.md). Requires the matching experimental LoRA; preserves native image references and applies temporal RoPE alignment plus soft temporal attention.
+
+### H3 Flash Partitions
+
+[Illustrated explanation: native temporal alignment with compile-free Flash Partitions](docs/H3_FLASH_PARTITIONS.md) covers the exact temporal rule, positive partition decomposition, log-sum-exp merging, measured performance, guide scaling and current backend limitations.
+
+Experimental temporal mode automatically recognizes **Model Attention Backend** (Kitchen/PyTorch) and, from 1.115.14, **Model Sparse Attention → sol-attn**. Version 1.115.17 automatically prepares the verified extension on first use on supported Linux SM120 systems. Version 1.115.16+ can use the [one-pass Kitchen extension](H3_NATIVE_TEMPORAL.md#one-pass-native-kitchen-kernels-111516) for dense INT8 and sol-attn. The earlier compatibility path repeats frame-wise calls and was slower than Flash Partitions; see [setup, measurements and limitations](H3_NATIVE_TEMPORAL.md#model-sparse-attention-sol-attn-compatibility-111514). SLA/VSA remain unsupported.
+
+![H3 temporal weight decomposition](docs/illustrations/h3_temporal_weight_decomposition.png)
@@ -92,6 +92,12 @@ try:
 except Exception as _e:  # noqa
    print(f"[BFSNodes] BFS Shot Noise node not loaded: {_e!r}")
    SNOISE_NODE_CLASS_MAPPINGS, SNOISE_NODE_DISPLAY_NAME_MAPPINGS = {}, {}
+try:
+    from .minimax_h3_native_temporal import NODE_CLASS_MAPPINGS as H3TEMP_NODE_CLASS_MAPPINGS
+    from .minimax_h3_native_temporal import NODE_DISPLAY_NAME_MAPPINGS as H3TEMP_NODE_DISPLAY_NAME_MAPPINGS
+except Exception as _e:
+    print(f"[BFSNodes] H3 native temporal nodes not loaded: {_e!r}")
+    H3TEMP_NODE_CLASS_MAPPINGS, H3TEMP_NODE_DISPLAY_NAME_MAPPINGS = {}, {}
 try:
    from .minimax_h3_downscaled_guide import NODE_CLASS_MAPPINGS as H3GUIDE_NODE_CLASS_MAPPINGS
    from .minimax_h3_downscaled_guide import NODE_DISPLAY_NAME_MAPPINGS as H3GUIDE_NODE_DISPLAY_NAME_MAPPINGS
@@ -112,9 +118,24 @@ try:
 except Exception as _e:  # noqa
    print(f"[BFSNodes] LoRA Surgery node not loaded: {_e!r}")
    LSURG_NODE_CLASS_MAPPINGS, LSURG_NODE_DISPLAY_NAME_MAPPINGS = {}, {}
+try:
+    from .bfs_video_compare import NODE_CLASS_MAPPINGS as VCMP_NODE_CLASS_MAPPINGS
+    from .bfs_video_compare import NODE_DISPLAY_NAME_MAPPINGS as VCMP_NODE_DISPLAY_NAME_MAPPINGS
+except Exception as _e:  # noqa
+    print(f"[BFSNodes] Video Compare node not loaded: {_e!r}")
+    VCMP_NODE_CLASS_MAPPINGS, VCMP_NODE_DISPLAY_NAME_MAPPINGS = {}, {}
+
+try:
+    from .minimax_h3_clip_video import NODE_CLASS_MAPPINGS as H3CLIP_NODE_CLASS_MAPPINGS
+    from .minimax_h3_clip_video import NODE_DISPLAY_NAME_MAPPINGS as H3CLIP_NODE_DISPLAY_NAME_MAPPINGS
+except Exception as _e:  # noqa
+    print(f"[BFSNodes] MiniMax H3 CLIP video context not loaded: {_e!r}")
+    H3CLIP_NODE_CLASS_MAPPINGS, H3CLIP_NODE_DISPLAY_NAME_MAPPINGS = {}, {}

 NODE_CLASS_MAPPINGS = {
+    **H3CLIP_NODE_CLASS_MAPPINGS,
    **H3GUIDE_NODE_CLASS_MAPPINGS,
+    **H3TEMP_NODE_CLASS_MAPPINGS,
    **SHOT_NODE_CLASS_MAPPINGS,
    **PANEL_NODE_CLASS_MAPPINGS,
    **GV_NODE_CLASS_MAPPINGS,
@@ -139,10 +160,13 @@ NODE_CLASS_MAPPINGS = {
    **EPF_NODE_CLASS_MAPPINGS,
    **HSMS_NODE_CLASS_MAPPINGS,
    **LSURG_NODE_CLASS_MAPPINGS,
+    **VCMP_NODE_CLASS_MAPPINGS,
 }

 NODE_DISPLAY_NAME_MAPPINGS = {
+    **H3CLIP_NODE_DISPLAY_NAME_MAPPINGS,
    **H3GUIDE_NODE_DISPLAY_NAME_MAPPINGS,
+    **H3TEMP_NODE_DISPLAY_NAME_MAPPINGS,
    **SHOT_NODE_DISPLAY_NAME_MAPPINGS,
    **PANEL_NODE_DISPLAY_NAME_MAPPINGS,
    **GV_NODE_DISPLAY_NAME_MAPPINGS,
@@ -167,6 +191,7 @@ NODE_DISPLAY_NAME_MAPPINGS = {
    **EPF_NODE_DISPLAY_NAME_MAPPINGS,
    **HSMS_NODE_DISPLAY_NAME_MAPPINGS,
    **LSURG_NODE_DISPLAY_NAME_MAPPINGS,
+    **VCMP_NODE_DISPLAY_NAME_MAPPINGS,
 }

 WEB_DIRECTORY = "./web/js"
@@ -16,7 +16,21 @@ import logging
 import torch

 LOG = logging.getLogger("bfs.h3_history")
-HISTORY_FRAMES = (17, 34, 51)   # whole H3 VAE groups: 1+4+4+4+4 frames per 5 latent steps
+# H3's VAE encodes 17-frame clips into 5 tokens (1+4+4+4+4 frames) and drops the last 3 tokens of the whole video, so only
+# 17k+5 frames encode without loss: 17 frames come back as 2 tokens = the FIRST 5 frames, leaving a 12-frame hole between
+# the history and the shot it sits before
+HISTORY_FRAMES = (5, 22, 39, 56)
+
+
+def history_length(wanted: int, available: int) -> int:
+    """The longest valid history (17k+5 frames) up to `wanted` and `available`; 0 when not even 5 fit. A wanted value
+    off the grid (old plans saved 17/34/51) is read as the next valid one up (22/39/56)."""
+    wanted, available = max(0, int(wanted)), max(0, int(available))
+    if wanted < 5:
+        return 0
+    wanted = 5 + -(-(wanted - 5) // 17) * 17
+    n = min(wanted, available)
+    return 0 if n < 5 else 5 + ((n - 5) // 17) * 17
 _PATCH = "_bfs_history_patch"


@@ -91,11 +105,11 @@ def install() -> bool:


 def add_history(positive, vae, frames: torch.Tensor):
-    """Appends `frames` ([N,H,W,3] at the video's size, N = 17k: the end of the previous result) as a history keyframe.
+    """Appends the last 17k+5 frames of `frames` ([N,H,W,3]) from the previous shot as an H3 history keyframe.
    Returns (positive, frames used)."""
    import node_helpers
-    n = (int(frames.shape[0]) // 17) * 17
-    if n < 17:
+    n = history_length(frames.shape[0], frames.shape[0])
+    if n < 5:
        return positive, 0
    install()
    # encoded from CPU frames; the latent comes back on ComfyUI's intermediate device like any H3 guide, and the VAE
@@ -105,3 +119,45 @@ def add_history(positive, vae, frames: torch.Tensor):
    kfs = list(positive[0][1].get("minimax_keyframes", []))
    kfs.append({"resolved_frame_index": 0, "latent": lat, "anchor": "history"})
    return node_helpers.conditioning_set_values(positive, {"minimax_keyframes": kfs}), n
+
+
+def pin_head(latent: dict, vae, frames: torch.Tensor):
+    """Continuity 'head': the end of the previous shot's result (17k+5 frames, [N,H,W,3]) encoded over the FIRST latent
+    steps of this shot's video, with the sampler's noise mask at 0 there, so those frames are kept exactly as they were
+    (no new swap on them) and the rest of the shot is generated continuing from them. BFS Shot Join cuts them off again.
+    Same masked-prefix idea as Ethanfel's Context Loop 'masked AV' continuation. Returns (latent, frames pinned)."""
+    import comfy.nested_tensor
+    n = history_length(frames.shape[0], frames.shape[0])
+    samples = latent["samples"]
+    nested = getattr(samples, "is_nested", False)
+    video = samples.tensors[0] if nested else samples
+    T, h, w = int(video.shape[2]), int(video.shape[3]), int(video.shape[4])
+    if n < 5:
+        return latent, 0
+    px = frames[-n:, ..., :3].float().cpu()
+    if tuple(px.shape[1:3]) != (h * 16, w * 16):
+        px = torch.nn.functional.interpolate(px.movedim(-1, 1), size=(h * 16, w * 16), mode="bilinear",
+                                             align_corners=False).movedim(1, -1)
+    with torch.no_grad():
+        enc = vae.encode(px).to(video)
+    t = int(enc.shape[2])
+    if t >= T:
+        LOG.warning("H3 head: %d pinned latent steps leave nothing to generate in a %d-step video", t, T)
+        return latent, 0
+    video = video.clone()
+    video[:, :, :t] = enc
+    old = latent.get("noise_mask")
+    vm = old.tensors[0] if getattr(old, "is_nested", False) else old
+    vm = torch.ones((1, 1, T, h, w), dtype=torch.float32) if vm is None else vm.float().clone()
+    vm = torch.broadcast_to(vm, (vm.shape[0], vm.shape[1], T, h, w)).clone()
+    vm[:, :, :t] = 0.0
+    out = dict(latent)
+    if nested:
+        audio = samples.tensors[1]
+        am = old.tensors[1] if getattr(old, "is_nested", False) else torch.ones_like(audio)
+        out["samples"] = comfy.nested_tensor.NestedTensor((video, audio))
+        out["noise_mask"] = comfy.nested_tensor.NestedTensor((vm.to(video.device), am))
+    else:
+        out["samples"], out["noise_mask"] = video, vm.to(video.device)
+    LOG.info("H3 head: first %d frames (%d latent steps) pinned from the previous shot", n, t)
+    return out, n
@@ -713,7 +713,11 @@ if _io is not None:
                    _io.Autogrow.Input("ref_audios", optional=True, template=_io.Autogrow.TemplatePrefix(
                        input=_io.Audio.Input("ref_audio", tooltip="<Audio n> reference"), prefix="ref_audio_", min=0, max=3)),
                    _io.Combo.Input("source_blur", options=_blur_modes(), default="off", optional=True, tooltip=
-                        "Blur the source person in what the model sees (the panel / the guide), keeping the mouth sharp (SAM 3.1): it reads the pose, motion and lips but has no face to copy. The output is never blurred. Works with or instead of panel_static."),
+                        BLUR_TT + " Works with or instead of panel_static."),
+                    _io.Combo.Input("source_blur_segmenter", options=_blur_lists().SEGMENTERS, default="SAM 3.1",
+                                    optional=True, tooltip=SEGMENTER_TT),
+                    _io.Combo.Input("source_blur_effect", options=_blur_lists().EFFECTS, default="blur", optional=True,
+                                    tooltip=EFFECT_TT),
                    _io.Combo.Input("panel_static", options=PANEL_STATIC, default="off", optional=True, tooltip=
                        "TSC's fix for swaps in the same world: cover the face (or the whole person) of the pinned clip in TV "
                        "static, every frame (SAM 3), so the generated half cannot copy it and takes the identity from the "
@@ -739,12 +743,13 @@ if _io is not None:
                    panel_noise, hold, rope_mode, rope_gap, ref_image_size, steps, sampler_name, scheduler, seed,
                    decode_canvas, audio_vae=None, panel=None, guide=None, guide_frame_idx=0, ref_images=None,
                    ref_videos=None, ref_video_audios=None, ref_audios=None, panel_static="off", setting=None, vlm=None, source_blur="off",
-                    vlm_max_tokens=1024):
+                    vlm_max_tokens=1024, source_blur_segmenter="SAM 3.1", source_blur_effect="blur"):
            if panel is None and guide is None:
                raise ValueError("BFS H3 Duet needs a panel, a guide, or both")
            raw_panel = panel
-            panel = static_over_panel(_blur(panel, source_blur, 1.0, "[BFS H3 Duet] panel"), panel_static)
-            guide = _blur(guide, source_blur, 1.0, "[BFS H3 Duet] guide")
+            panel = static_over_panel(_blur(panel, source_blur, 1.0, "[BFS H3 Duet] panel", source_blur_segmenter,
+                                            source_blur_effect), panel_static)
+            guide = _blur(guide, source_blur, 1.0, "[BFS H3 Duet] guide", source_blur_segmenter, source_blur_effect)
            if length <= 0:
                src = guide if guide is not None else panel
                length = src.shape[0] if src.shape[0] >= 5 else 124
@@ -778,22 +783,32 @@ def _shot_loop():
 PANEL_STATIC = ["off", "face", "person"]


-def _blur_modes():
+def _blur_lists():
    try:
-        from .bfs_source_blur import SOURCE_BLUR
+        from . import bfs_source_blur as B
    except ImportError:
-        from bfs_source_blur import SOURCE_BLUR
-    return SOURCE_BLUR
+        import bfs_source_blur as B
+    return B


-def _blur(frames, mode, strength=1.0, log=""):
+def _blur_modes():
+    return _blur_lists().SOURCE_BLUR
+
+
+BLUR_TT = ("Blur the source person in what the model sees (the panel / the guide): '<region> (<what stays sharp>)'. "
+           "keep mouth: lips, teeth and tongue stay sharp; keep lips + tongue: the teeth are blurred too; mouth too: "
+           "nothing stays sharp. masked area: the shot's own mask (elsewhere: the whole person). It reads the pose and "
+           "motion but has no face to copy. The output is never blurred.")
+SEGMENTER_TT = ("What finds the face / head / hands / person and the mouth for source_blur. SAM 3.1: text prompts. "
+                "Sapiens2: body-part classes in one pass, finer lips and teeth (downloads facebook/sapiens2-seg-0.4b, "
+                "1.6 GB, to models/sapiens2 the first time). 'keep lips + tongue' always uses Sapiens2 for the lips.")
+EFFECT_TT = "blur: no detail left. invert colours: keeps the shapes and the expression but not the skin tone or colours."
+
+
+def _blur(frames, mode, strength=1.0, log="", segmenter="SAM 3.1", effect="blur", area=None):
    if frames is None or not mode or mode == "off":
        return frames
-    try:
-        from .bfs_source_blur import blur_source
-    except ImportError:
-        from bfs_source_blur import blur_source
-    return blur_source(frames, mode, float(strength), log)
+    return _blur_lists().blur_source(frames, mode, float(strength), log, segmenter, effect, area)


 def _small(frames: torch.Tensor, side: int = 640) -> torch.Tensor:
@@ -909,7 +924,11 @@ if _io is not None:
                    _io.Autogrow.Input("ref_images", optional=True, template=_io.Autogrow.TemplatePrefix(
                        input=_io.Image.Input("ref_image", tooltip="<Picture n>, in order"), prefix="ref_image_", min=0, max=9)),
                    _io.Combo.Input("source_blur", options=_blur_modes(), default="off", optional=True, tooltip=
-                        "Blur the source person in what the model sees (the panel / the guide), keeping the mouth sharp (SAM 3.1): it reads the pose, motion and lips but has no face to copy. The output is never blurred. Works with or instead of panel_static."),
+                        BLUR_TT + " Works with or instead of panel_static."),
+                    _io.Combo.Input("source_blur_segmenter", options=_blur_lists().SEGMENTERS, default="SAM 3.1",
+                                    optional=True, tooltip=SEGMENTER_TT),
+                    _io.Combo.Input("source_blur_effect", options=_blur_lists().EFFECTS, default="blur", optional=True,
+                                    tooltip=EFFECT_TT),
                    _io.Combo.Input("panel_static", options=PANEL_STATIC, default="off", optional=True, tooltip=
                        "TSC's fix for swaps in the same world: cover the face (or the whole person) of the pinned clip in TV "
                        "static, every frame (SAM 3), so the generated half cannot copy it and takes the identity from the "
@@ -927,12 +946,14 @@ if _io is not None:
        def execute(cls, clip, vae, panel, task, instruction, prompt, width, height, length, position, size, panel_noise,
                    rope_mode, fit, gap, hold, rope_gap, ref_image_size, vlm_max_tokens, vlm=None, model=None,
                    audio_vae=None, guide=None, ref_images=None, keep_mask=None, keep_video=None, panel_static="off",
-                    setting=None, source_blur="off"):
+                    setting=None, source_blur="off", source_blur_segmenter="SAM 3.1", source_blur_effect="blur"):
            from comfy_extras.nodes_minimax_h3 import MiniMaxH3ReferenceToVideo
            refs = [v for v in (ref_images or {}).values() if v is not None]
            raw_panel = panel
-            panel = static_over_panel(_blur(panel, source_blur, 1.0, "[BFS H3 Duet Conditioning] panel"), panel_static)
-            guide = _blur(guide, source_blur, 1.0, "[BFS H3 Duet Conditioning] guide")
+            panel = static_over_panel(_blur(panel, source_blur, 1.0, "[BFS H3 Duet Conditioning] panel",
+                                            source_blur_segmenter, source_blur_effect), panel_static)
+            guide = _blur(guide, source_blur, 1.0, "[BFS H3 Duet Conditioning] guide", source_blur_segmenter,
+                          source_blur_effect)
            if length <= 0:
                length = panel.shape[0] if panel.shape[0] >= 5 else 124
            text = _shot_loop().duet_prompt(vlm, prompt, raw_panel, refs, task, instruction, int(vlm_max_tokens),
@@ -996,8 +1017,10 @@ class BFSShotH3Duet:
            "optional": {"audio_vae": ("VAE",),
                         "rope_mode": (ROPE_MODES, {"default": "canvas", "advanced": True}),
                         "rope_gap": ("FLOAT", {"default": 0.0, "min": 0.0, "max": 256.0, "step": 1.0, "advanced": True}),
-                         "source_blur": (_blur_modes(), {"default": "off", "tooltip": "Blur the source person in what the model sees (the panel / the guide), keeping the mouth sharp (SAM 3.1): it reads the pose, motion and lips but has no face to copy. The output is never blurred."}),
+                         "source_blur": (_blur_modes(), {"default": "off", "tooltip": BLUR_TT}),
                         "source_blur_strength": ("FLOAT", {"default": 1.0, "min": 0.1, "max": 1.0, "step": 0.05}),
+                         "source_blur_segmenter": (_blur_lists().SEGMENTERS, {"default": "SAM 3.1", "tooltip": SEGMENTER_TT}),
+                         "source_blur_effect": (_blur_lists().EFFECTS, {"default": "blur", "tooltip": EFFECT_TT}),
                         "vlm": ("CLIP", {"tooltip": "Optional VLM (Qwen3-VL CLIPLoader): fills {details} in the shot's "
                                                     "prompt from its references when the planner left it."})},
        }
@@ -1013,12 +1036,10 @@ class BFSShotH3Duet:

    def render(self, shot, model, clip, vae, mode, task, instruction, use_ref_2, position, size, fit, gap,
               panel_noise, ref_image_size, steps, sampler_name, scheduler, seed, decode_canvas, audio_vae=None,
-               rope_mode="canvas", rope_gap=0.0, source_blur="off", source_blur_strength=1.0, vlm=None):
-        imgs = {}
-        if shot.get("ref") is not None:
-            imgs["ref_image_1"] = shot["ref"]
-        if use_ref_2 and shot.get("ref2") is not None:
-            imgs[f"ref_image_{len(imgs) + 1}"] = shot["ref2"]
+               rope_mode="canvas", rope_gap=0.0, source_blur="off", source_blur_strength=1.0, vlm=None,
+               source_blur_segmenter="SAM 3.1", source_blur_effect="blur"):
+        own = _shot_loop().shot_refs(shot)
+        imgs = {f"ref_image_{k + 1}": r for k, r in enumerate(own[:_shot_loop().MAX_REFS if use_ref_2 else 1])}
        duet, guided = mode != self.MODES[1], mode != self.MODES[0]
        try:
            from .bfs_shot_loop import chain_image, remember_result, shot_history
@@ -1028,12 +1049,15 @@ class BFSShotH3Duet:
        if prev is not None and shot.get("chain") == "reference":
            imgs[f"ref_image_{len(imgs) + 1}"] = prev
        text = _resolve_prompt(shot.get("prompt", ""), task, instruction, len(imgs), 0)
-        if "{details}" in text:
-            text = _shot_loop().fill_details_now(text, vlm, [shot.get("ref"), shot.get("ref2")],
-                                                 f"[BFS Shot H3 Duet] shot {int(shot.get('index', 0)) + 1}")
+        if "{details" in text:
+            text = _shot_loop().fill_details_now(text, vlm, own, f"[BFS Shot H3 Duet] shot {int(shot.get('index', 0)) + 1}",
+                                                 shot.get("ref_names"))
        hist, hsrc = shot_history(shot) if shot_history else (None, None)
+        area = None
+        if source_blur and source_blur.startswith("masked area") and (shot.get("mask_src") or (shot.get("crop") or {}).get("crop_mask") is not None):
+            area = _shot_loop().generation_mask(shot)
        seen = _blur(shot["frames"], source_blur, source_blur_strength,
-                     f"[BFS Shot H3 Duet] shot {int(shot.get('index', 0)) + 1}")
+                     f"[BFS Shot H3 Duet] shot {int(shot.get('index', 0)) + 1}", source_blur_segmenter, source_blur_effect, area)
        out = h3_render(model, clip, vae, audio_vae, text, {"ref_images": imgs}, shot["width"], shot["height"],
                        shot["gen_length"], steps, sampler_name, scheduler, seed + int(shot.get("index", 0)),
                        panel=seen if duet else None, guide=seen if guided else None,
@@ -0,0 +1,97 @@
+"""Sapiens2 body-part segmentation (Meta, facebook/sapiens2-seg-*): one class per pixel out of 29 (28 parts +
+background), lips, teeth and tongue separate from the face. Used by the source blur for parts SAM 3.1 can't
+find reliably from a text prompt (lips, tongue). It marks every person in the frame (no instances).
+
+The weights (0.4B, 1.6 GB) go to models/sapiens2/sapiens2-seg-0.4b, downloaded from Hugging Face the first time.
+Sapiens2 License: https://github.com/facebookresearch/sapiens2/blob/main/LICENSE.md
+"""
+from __future__ import annotations
+
+import os
+
+import torch
+
+REPO = "facebook/sapiens2-seg-0.4b"
+FILES = ("config.json", "preprocessor_config.json", "model.safetensors")
+CLASSES = ("Background", "Apparel", "Eyeglass", "Face_Neck", "Hair", "Left_Foot", "Left_Hand", "Left_Lower_Arm",
+           "Left_Lower_Leg", "Left_Shoe", "Left_Sock", "Left_Upper_Arm", "Left_Upper_Leg", "Lower_Clothing",
+           "Right_Foot", "Right_Hand", "Right_Lower_Arm", "Right_Lower_Leg", "Right_Shoe", "Right_Sock",
+           "Right_Upper_Arm", "Right_Upper_Leg", "Torso", "Upper_Clothing", "Lower_Lip", "Upper_Lip", "Lower_Teeth",
+           "Upper_Teeth", "Tongue")
+ID = {n: i for i, n in enumerate(CLASSES)}
+PIXELS = 1024 * 768   # the size it was trained at; other shapes keep this area and their aspect ratio
+_MEAN = (0.485, 0.456, 0.406)
+_STD = (0.229, 0.224, 0.225)
+_MODEL: dict = {}
+
+
+def model_dir() -> str:
+    try:
+        import folder_paths
+        base = folder_paths.models_dir
+    except Exception:
+        base = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), "..", "models")
+    return os.path.join(base, "sapiens2", REPO.split("/")[-1])
+
+
+def _load():
+    if "m" in _MODEL:
+        return _MODEL["m"]
+    d = model_dir()
+    if not all(os.path.exists(os.path.join(d, f)) for f in FILES):
+        print(f"[BFS Sapiens2] downloading {REPO} (1.6 GB) to {d}", flush=True)
+        from huggingface_hub import hf_hub_download
+        for f in FILES:
+            hf_hub_download(REPO, f, local_dir=d)
+    from transformers import Sapiens2ForSemanticSegmentation
+    _MODEL["m"] = Sapiens2ForSemanticSegmentation.from_pretrained(d, dtype=torch.float32).eval()
+    return _MODEL["m"]
+
+
+def _device():
+    try:
+        import comfy.model_management as mm
+        return mm.get_torch_device()
+    except Exception:
+        return torch.device("cuda" if torch.cuda.is_available() else "cpu")
+
+
+def input_size(h: int, w: int) -> tuple[int, int]:
+    """(H, W) with the trained area, the frame's aspect ratio, multiples of the 16 px patch."""
+    s = (PIXELS / (h * w)) ** 0.5
+    return max(16, round(h * s / 16) * 16), max(16, round(w * s / 16) * 16)
+
+
+@torch.no_grad()
+def segment(frames: torch.Tensor, out_size: tuple[int, int] | None = None, batch: int = 4) -> torch.Tensor:
+    """frames [N,H,W,3] 0-1 -> class ids [N,h,w] uint8 at `out_size` (default the frames' size)."""
+    m = _load()
+    dev = _device()
+    half = dev.type == "cuda"
+    m.to(dev, dtype=torch.float16 if half else torch.float32)
+    N, H, W = frames.shape[:3]
+    oh, ow = out_size or (H, W)
+    ih, iw = input_size(H, W)
+    mean = torch.tensor(_MEAN, device=dev).view(1, 3, 1, 1)
+    std = torch.tensor(_STD, device=dev).view(1, 3, 1, 1)
+    out = torch.empty(N, oh, ow, dtype=torch.uint8)
+    try:
+        for a in range(0, N, batch):
+            x = frames[a:a + batch, ..., :3].to(dev).float().movedim(-1, 1)
+            x = torch.nn.functional.interpolate(x, size=(ih, iw), mode="bilinear", align_corners=False, antialias=True)
+            x = ((x - mean) / std).to(torch.float16 if half else torch.float32)
+            lg = m(pixel_values=x).logits.float()
+            lg = torch.nn.functional.interpolate(lg, size=(oh, ow), mode="bilinear", align_corners=False)
+            out[a:a + batch] = lg.argmax(1).to(torch.uint8).cpu()
+            del x, lg
+    finally:
+        m.to("cpu")   # 0.4B: back to RAM, the VRAM is the video model's
+        if half:
+            torch.cuda.empty_cache()
+    return out
+
+
+def parts(classes: torch.Tensor, names) -> torch.Tensor:
+    """[N,h,w] float mask of the pixels whose class is one of `names`."""
+    ids = torch.tensor([ID[n] for n in names], dtype=classes.dtype)
+    return torch.isin(classes, ids).float()
@@ -1,17 +1,41 @@
 """Optional blur of the source person in what the model SEES of the source (aligned guide, native reference video,
-duet panel), keeping the mouth sharp: the model still reads the pose, the motion and the lips, but has no face to copy,
-so the identity comes from the reference. JalenBrunson's trick for reliable ref2v swaps (Sapiens2 there); here the
-masks come from SAM 3.1, already used by the planner. The kept area (inpaint) and the output are never blurred.
+duet panel): the model still reads the pose, the motion and (if kept sharp) the lips, but has no face to copy, so the
+identity comes from the reference. JalenBrunson's trick for reliable ref2v swaps. The kept area (inpaint) and the
+output are never blurred.
+
+Modes are "<region> (<what stays sharp>)":
+  region     face / head + hands / person: found by the segmenter, every person in the frame;
+             masked area: the shot's own mask (the person being replaced, with its expand), no extra segmentation
+  sharp      keep mouth: lips, teeth and tongue; keep lips + tongue: the teeth are blurred too (always Sapiens2);
+             mouth too: nothing stays sharp
+Segmenter: SAM 3.1 (text prompts, already used by the planner) or Sapiens2 (body-part classes, one pass, finer lips).
+Effect: blur, or invert the colours (keeps the shapes and the expression, loses skin tone and colours).
 """
 from __future__ import annotations

 import torch

-SOURCE_BLUR = ["off", "face (keep mouth)", "head + hands (keep mouth)", "person (keep mouth)"]
-_PARTS = {SOURCE_BLUR[1]: ("face",), SOURCE_BLUR[2]: ("head", "hand"), SOURCE_BLUR[3]: ("person",)}
+_REGIONS = ("face", "head + hands", "person", "masked area")
+_SHARP = ("keep mouth", "keep lips + tongue", "mouth too")
+SOURCE_BLUR = ["off"] + [f"{r} ({k})" for k in _SHARP for r in _REGIONS]
+SEGMENTERS = ["SAM 3.1", "Sapiens2"]
+EFFECTS = ["blur", "invert colours"]
+_SAM_PARTS = {"face": ("face",), "head + hands": ("head", "hand"), "person": ("person",)}
+_SAP_FACE = ("Face_Neck", "Eyeglass", "Lower_Lip", "Upper_Lip", "Lower_Teeth", "Upper_Teeth", "Tongue")
+_SAP_PARTS = {"face": _SAP_FACE, "head + hands": _SAP_FACE + ("Hair", "Left_Hand", "Right_Hand")}
+_SAP_SHARP = {"keep mouth": ("Lower_Lip", "Upper_Lip", "Lower_Teeth", "Upper_Teeth", "Tongue"),
+              "keep lips + tongue": ("Lower_Lip", "Upper_Lip", "Tongue")}
 _CACHE: dict = {}


+def parse(mode: str) -> tuple[str, str] | None:
+    """'face (keep mouth)' -> ('face', 'keep mouth'); None for off / unknown."""
+    if not mode or "(" not in mode:
+        return None
+    region, sharp = mode.rstrip(")").split(" (", 1)
+    return (region, sharp) if region in _REGIONS and sharp in _SHARP else None
+
+
 def _sl():
    try:
        from . import bfs_shot_loop as SL
@@ -20,6 +44,13 @@ def _sl():
    return SL


+def _sap():
+    try:
+        from . import bfs_sapiens as SP
+    except ImportError:
+        import bfs_sapiens as SP
+    return SP
+
 def _small(frames: torch.Tensor, side: int = 640) -> torch.Tensor:
    H, W = frames.shape[1:3]
    s = side / max(H, W)
@@ -36,51 +67,93 @@ def _grow(m: torch.Tensor, px: int) -> torch.Tensor:
    return torch.nn.functional.max_pool2d(m[:, None], 2 * px + 1, stride=1, padding=px)[:, 0]


-def blur_mask(frames: torch.Tensor, mode: str, log: str = "") -> torch.Tensor | None:
-    """[N,h,w] float mask (working size) of what to blur: the parts for `mode` minus the (slightly grown) mouth."""
-    parts = _PARTS.get(mode)
-    if not parts:
+def blur_mask(frames: torch.Tensor, mode: str, log: str = "", segmenter: str = "SAM 3.1",
+              area: torch.Tensor | None = None) -> torch.Tensor | None:
+    """[N,h,w] float mask (working size) of what to blur: the region for `mode` minus what stays sharp (grown a
+    little). `area` [N,H,W]: the shot's own mask, for the 'masked area' region."""
+    pr = parse(mode)
+    if not pr:
        return None
+    region, sharp = pr
+    if region == "masked area" and area is None:
+        if log:
+            print(f"{log}: source blur 'masked area' needs a mask on the shot (SAM 3 text or points): blurring the "
+                  "whole person instead", flush=True)
+        region = "person"
    SL = _sl()
    small = _small(frames)
-    key = (mode, tuple(small.shape), SL._image_key(frames[:1]), SL._image_key(frames[-1:]),
-           SL._image_key(frames[frames.shape[0] // 2:frames.shape[0] // 2 + 1]))
+    h, w = small.shape[1:3]
+    sap_region = region != "masked area" and segmenter == "Sapiens2"
+    sap_sharp = sharp == "keep lips + tongue" or (sharp == "keep mouth" and segmenter == "Sapiens2")
+    key = (region, sharp, segmenter, tuple(small.shape), SL._image_key(frames[:1]), SL._image_key(frames[-1:]),
+           SL._image_key(frames[frames.shape[0] // 2:frames.shape[0] // 2 + 1]),
+           None if area is None else (tuple(area.shape), float(area.float().sum())))
    if key in _CACHE:
        return _CACHE[key]
-    m = torch.zeros(small.shape[:3])
-    for p in parts:
-        m = torch.maximum(m, (SL.segment_frames(small, dict(SL.DEFAULT_MASK, text=p, max_objects=8, threshold=0.4)) > 0.5).float())
-    mouth = (SL.segment_frames(small, dict(SL.DEFAULT_MASK, text="mouth", max_objects=8, threshold=0.3)) > 0.5).float()
-    keep = _grow(mouth, max(1, int(min(small.shape[1:3]) * 0.012)))
-    out = (_grow(m, max(1, int(min(small.shape[1:3]) * 0.015))) * (1 - keep)).clamp(0, 1)
+    cls = _sap().segment(small) if sap_region or sap_sharp else None
+    if region == "masked area":
+        m = torch.nn.functional.interpolate(area[:, None].float(), size=(h, w), mode="nearest")[:, 0].clamp(0, 1)
+        m_grow = 0                                   # already grown by the mask's own expand
+    elif sap_region:
+        m = (cls > 0).float() if region == "person" else _sap().parts(cls, _SAP_PARTS[region])
+        m_grow = max(1, int(min(h, w) * 0.01))
+    else:
+        m = torch.zeros(small.shape[:3])
+        for p in _SAM_PARTS[region]:
+            m = torch.maximum(m, (SL.segment_frames(small, dict(SL.DEFAULT_MASK, text=p, max_objects=8, threshold=0.4)) > 0.5).float())
+        m_grow = max(1, int(min(h, w) * 0.015))
+    if sharp == "mouth too":
+        keep, found = torch.zeros_like(m), None
+    elif sap_sharp:
+        keep = _sap().parts(cls, _SAP_SHARP[sharp])
+        keep = _grow(keep, max(1, int(min(h, w) * 0.005)))
+        found = float(keep.sum()) > 0
+    else:
+        mouth = (SL.segment_frames(small, dict(SL.DEFAULT_MASK, text="mouth", max_objects=8, threshold=0.3)) > 0.5).float()
+        keep = _grow(mouth, max(1, int(min(h, w) * 0.012)))
+        found = float(mouth.sum()) > 0
+    out = (_grow(m, m_grow) * (1 - keep)).clamp(0, 1)
    if log:
-        print(f"{log}: source blur '{mode}': {float(m.mean()) * 100:.1f}% of the frame, mouth kept "
-              f"({'found' if float(mouth.sum()) > 0 else 'not found: the whole part is blurred'})", flush=True)
+        kept = "nothing kept sharp" if found is None else \
+            f"{sharp[5:]} kept ({'found' if found else 'not found: the whole region is blurred'})"
+        used = "shot mask" if region == "masked area" else "Sapiens2" if sap_region else "SAM 3.1"
+        print(f"{log}: source blur '{region}' ({used}{' + Sapiens2 lips' if sap_sharp and not sap_region else ''}): "
+              f"{float(m.mean()) * 100:.1f}% of the frame, {kept}", flush=True)
    if len(_CACHE) > 8:
        _CACHE.pop(next(iter(_CACHE)))
    _CACHE[key] = out
    return out


-def blur_source(frames: torch.Tensor | None, mode: str, strength: float = 1.0, log: str = "") -> torch.Tensor | None:
-    """The frames with the source person blurred per `mode` (mouth kept). `strength` 0-1 sets how coarse the blur is."""
+def _soft(m: torch.Tensor, H: int, W: int, N: int) -> torch.Tensor:
+    """The working-size mask at the frame size with a soft edge, one per frame ([N,H,W,1])."""
+    mm = torch.nn.functional.interpolate(m[:, None], size=(H, W), mode="bilinear", align_corners=False)
+    mm = torch.nn.functional.avg_pool2d(mm, 9, stride=1, padding=4)[:, 0, ..., None].clamp(0, 1)
+    if mm.shape[0] != N:   # one mask per frame; a shorter list holds its last one
+        mm = mm[[min(i, mm.shape[0] - 1) for i in range(N)]]
+    return mm
+
+
+def blur_source(frames: torch.Tensor | None, mode: str, strength: float = 1.0, log: str = "",
+                segmenter: str = "SAM 3.1", effect: str = "blur", area: torch.Tensor | None = None) -> torch.Tensor | None:
+    """The frames with the source person blurred (or colour-inverted) per `mode`. `strength` 0-1 sets how coarse the
+    blur is; `area`: the shot's mask for the 'masked area' modes."""
    if frames is None or not mode or mode == "off" or strength <= 0:
        return frames
-    m = blur_mask(frames, mode, log)
+    m = blur_mask(frames, mode, log, segmenter, area)
    if m is None or float(m.sum()) == 0:
        return frames
    x = frames[..., :3].float()
    N, H, W = x.shape[:3]
+    if effect == "invert colours":
+        mm = _soft(m, H, W, N)
+        return x * (1 - mm) + (1 - x) * mm
    # a heavy blur: down to ~1/12-1/40 of the size and back, then a soft pass; blocky detail never survives it
    f = max(4, int(min(H, W) * (0.025 + 0.06 * float(strength))))
    low = torch.nn.functional.interpolate(x.movedim(-1, 1), size=(max(2, H // f), max(2, W // f)), mode="area")
    blur = torch.nn.functional.interpolate(low, size=(H, W), mode="bilinear", align_corners=False)
    blur = torch.nn.functional.avg_pool2d(blur, 5, stride=1, padding=2).movedim(1, -1)
-    mm = torch.nn.functional.interpolate(m[:, None], size=(H, W), mode="bilinear", align_corners=False)
-    mm = torch.nn.functional.avg_pool2d(mm, 9, stride=1, padding=4)[:, 0, ..., None].clamp(0, 1)
-    if mm.shape[0] != N:   # one mask per frame; a shorter list holds its last one
-        idx = [min(i, mm.shape[0] - 1) for i in range(N)]
-        mm = mm[idx]
+    mm = _soft(m, H, W, N)
    out = x * (1 - mm) + blur * mm
    del low, blur, mm
    return out
@@ -0,0 +1,372 @@
+"""BFS Video Compare: two videos in one player (wipe, overlay or side by side, either one on top) plus a per-pixel
+difference map. Made for BFS Shot Join's `guide` and `images` outputs, but any two IMAGE batches work.
+
+The difference is measured here on the frames themselves (not on the browser's compressed preview): per pixel, the mean
+absolute RGB difference, drawn black (equal) -> red -> yellow -> white (very different), scaled by `gain`. The player
+gets three temporary MP4s (guide, target, difference) and the per-frame difference, so it can jump to the worst frames.
+"""
+import math
+import os
+import re
+import subprocess
+import uuid
+
+import numpy as np
+import torch
+import torch.nn.functional as F
+
+import folder_paths
+
+try:
+    from . import bfs_video_io as VIO
+except ImportError:   # loaded as a plain module (the tests): the file next to this one
+    import importlib.util as _ilu
+    _vio = _ilu.spec_from_file_location("bfs_video_io", os.path.join(os.path.dirname(os.path.abspath(__file__)),
+                                                                     "bfs_video_io.py"))
+    VIO = _ilu.module_from_spec(_vio)
+    _vio.loader.exec_module(VIO)
+
+CHUNK = 16
+
+
+def _scale(x: torch.Tensor, h: int, w: int) -> torch.Tensor:
+    if tuple(x.shape[1:3]) == (h, w):
+        return x
+    return F.interpolate(x.permute(0, 3, 1, 2), size=(h, w), mode="bilinear", align_corners=False,
+                         antialias=True).permute(0, 2, 3, 1).clamp(0, 1)
+
+
+def heat(v: torch.Tensor) -> torch.Tensor:
+    """[..., H, W] in 0..1 -> RGB: black (0), red, yellow, white (1)."""
+    return torch.stack([(3 * v).clamp(0, 1), (3 * v - 1).clamp(0, 1), (3 * v - 2).clamp(0, 1)], -1)
+
+
+def difference(guide: torch.Tensor, target: torch.Tensor, gain: float = 4.0):
+    """Both [N, H, W, 3] in 0..1 (same size). Returns (map [N, H, W, 3], mean abs difference per frame in 0..255,
+    mean squared error per frame in 0..1)."""
+    d = (guide[..., :3].float() - target[..., :3].float()).abs()
+    mae = d.mean(dim=(1, 2, 3)) * 255
+    mse = (d * d).mean(dim=(1, 2, 3))
+    return heat((d.mean(-1) * float(gain)).clamp(0, 1)), mae, mse
+
+
+def psnr(mse: float) -> float:
+    return float("inf") if mse <= 0 else 10 * math.log10(1.0 / mse)
+
+
+MAX_REFS = 12
+
+
+def ref_pictures(reference) -> list:
+    """The reference pictures, one [H,W,3] each: from a list of IMAGEs of any sizes (e.g. the planner's or BFS Shot
+    Unpack's refs) and / or IMAGE batches."""
+    out = []
+    for item in reference if isinstance(reference, list) else [reference]:
+        if item is not None:
+            out += [item[i] for i in range(int(item.shape[0]))]
+    return out[:MAX_REFS]
+
+
+def save_refs(reference, out_dir: str, height: int) -> list:
+    """The reference pictures as PNGs no taller than the player (no upscale) -> file names."""
+    from PIL import Image
+    names = []
+    for i, pic in enumerate(ref_pictures(reference)):
+        im = Image.fromarray((pic[..., :3].float().clamp(0, 1).cpu().numpy() * 255).round().astype(np.uint8))
+        if im.height > height:
+            im = im.resize((max(1, round(im.width * height / im.height)), height), Image.LANCZOS)
+        names.append(f"ref_{i}.png")
+        im.save(os.path.join(out_dir, names[-1]))
+    return names
+
+
+def video_batches(value, name):
+    parts = value if isinstance(value, list) else [value]
+    if not parts or any(not isinstance(x, torch.Tensor) or x.ndim != 4 or
+                        x.shape[0] < 1 or x.shape[-1] < 3 or min(x.shape[1:3]) < 1 for x in parts):
+        raise ValueError(f"{name} must contain nonempty IMAGE batches")
+    return parts
+
+
+def video_chunk(parts, start, end, h, w):
+    """Read a bounded frame interval across shot batches without concatenating full videos."""
+    result, pos = [], 0
+    for part in parts:
+        count = int(part.shape[0])
+        a, b = max(0, start - pos), min(count, end - pos)
+        if a < b:
+            result.append(_scale(part[a:b, ..., :3].float(), h, w))
+        pos += count
+        if pos >= end:
+            break
+    return result[0] if len(result) == 1 else torch.cat(result, 0)
+
+
+class BFSVideoCompare:
+    @classmethod
+    def INPUT_TYPES(cls):
+        return {
+            "required": {
+                "guide": ("IMAGE", {"tooltip": "The original video (e.g. BFS Shot Join's 'guide' output)."}),
+                "target": ("IMAGE", {"tooltip": "The result to compare with it (e.g. BFS Shot Join's 'images')."}),
+            },
+            "optional": {
+                "fps": ("FLOAT", {"default": 24.0, "min": 1.0, "max": 240.0, "step": 0.001, "tooltip":
+                                  "Frame rate of both videos (connect BFS Shot Join's 'fps')."}),
+                "audio": ("AUDIO", {"tooltip": "Soundtrack for the player (e.g. BFS Shot Join's 'audio')."}),
+                "gain": ("FLOAT", {"default": 2.0, "min": 0.5, "max": 64.0, "step": 0.5, "tooltip":
+                                   "How strongly differences light up in the map: a mean RGB difference of 1/gain "
+                                   "(128/255 at 2) is already white. Raise it to see small changes."}),
+                "size": (["guide", "target"], {"default": "guide", "tooltip":
+                                               "Which video's size the other is scaled to before comparing. "
+                                               "The Join's guide is at comparison_height, so 'guide' is lighter."}),
+                "preview_height": ("INT", {"default": 720, "min": 0, "max": 4096, "step": 16, "tooltip":
+                                           "Height of the player's videos (0 = the compared size). Only the preview: "
+                                           "the difference is measured before it."}),
+                "reference": ("IMAGE", {"tooltip": "Optional reference pictures (e.g. the people swapped in), shown in a "
+                                        "strip below the videos, numbered as <Picture n>, and in what ⬇ save / ● rec "
+                                        "download. Takes the refs list of BFS Shot Planner / Unpack (pictures of any "
+                                        "size) or a batch; up to 12."}),
+                "label_guide": ("STRING", {"default": "guide"}),
+                "label_target": ("STRING", {"default": "target"}),
+            },
+        }
+
+    # IMAGE lists contain every shot, in order. Only scalar settings take their first item.
+    INPUT_IS_LIST = True
+    RETURN_TYPES = ("IMAGE", "STRING", "FLOAT")
+    RETURN_NAMES = ("difference", "report", "mean_difference")
+    OUTPUT_TOOLTIPS = ("The difference map, one frame per compared frame (black = equal, white = very different).",
+                       "Frame count, sizes, mean difference, PSNR and the most / least different frames.",
+                       "Mean absolute RGB difference over all frames, 0-255.")
+    OUTPUT_NODE = True
+    FUNCTION = "compare"
+    CATEGORY = "BFS/shot loop"
+    DESCRIPTION = ("Play two videos in one player (wipe, overlay or side by side; choose which is on top) and see "
+                   "where they differ, pixel by pixel.")
+
+    def compare(self, guide, target, fps=24.0, audio=None, gain=2.0, size="guide", preview_height=720,
+                label_guide="guide", label_target="target", reference=None):
+        one = lambda v: v[0] if isinstance(v, list) and v else v
+        fps, audio, gain, size, preview_height, label_guide, label_target = map(
+            one, (fps, audio, gain, size, preview_height, label_guide, label_target))
+        guide, target = video_batches(guide, "guide"), video_batches(target, "target")
+        ng, nt = sum(x.shape[0] for x in guide), sum(x.shape[0] for x in target)
+        if len(guide) > 1 or len(target) > 1:
+            if ng != nt or (len(guide) == len(target) and any(g.shape[0] != t.shape[0] for g, t in zip(guide, target))):
+                raise ValueError("Guide/target shot lists have different timing. Connect BFS Shot Join's guide and images outputs from the SAME Join; Unpack guide frames can include continuity heads and generation padding.")
+        notes = []
+        n = min(ng, nt)
+        if ng != nt:
+            notes.append(f"lengths differ (guide {ng}, target {nt} frames): "
+                         f"compared the first {n}")
+        ref = guide if size == "guide" else target
+        H, W = int(ref[0].shape[1]), int(ref[0].shape[2])
+        for name, parts in (("guide", guide), ("target", target)):
+            if len(parts) > 1:
+                notes.append(f"{name}: compared all {len(parts)} shot batches in input order")
+            for dims in sorted(set(tuple(v.shape[1:3]) for v in parts)):
+                if dims != (H, W):
+                    notes.append(f"{name} scaled from {dims[1]}x{dims[0]} to {W}x{H}")
+        if ng != nt:
+            notes.append("Timing may be misaligned. For Planner results, connect guide and images from the SAME BFS Shot Join.")
+        ph = min(H, int(preview_height)) if preview_height and preview_height > 0 else H
+        PH, PW = max(16, ph // 2 * 2), max(16, int(round(W * ph / H)) // 2 * 2)
+
+        out_dir = os.path.join(folder_paths.get_temp_directory(), "bfs_compare", uuid.uuid4().hex[:12])
+        os.makedirs(out_dir, exist_ok=True)
+        names = {"guide": "guide.mp4", "target": "target.mp4", "difference": "difference.mp4"}
+        writers = {k: VIO.Mp4Writer(os.path.join(out_dir, f), PW, PH, float(fps), audio if k == "target" else None,
+                                    crf=14, who="BFS Video Compare") for k, f in names.items()}
+        maps, mae, mse = [], [], []
+        try:
+            for a in range(0, n, CHUNK):
+                e = min(a + CHUNK, n)   # the longer video stops where the shorter one ends
+                g = video_chunk(guide, a, e, H, W)
+                t = video_chunk(target, a, e, H, W)
+                m, e, s = difference(g, t, gain)
+                maps.append(m)
+                mae.append(e)
+                mse.append(s)
+                for k, v in (("guide", g), ("target", t), ("difference", m)):
+                    writers[k].write(_scale(v, PH, PW))
+        finally:
+            for w in writers.values():
+                w.close()
+        diff_map = torch.cat(maps, 0)
+        mae, mse = torch.cat(mae), torch.cat(mse)
+        mean = float(mae.mean())
+        worst, best = int(mae.argmax()), int(mae.argmin())
+        report = "\n".join([
+            f"{label_guide} vs {label_target}: {n} frames at {fps:g} fps, compared at {W}x{H}",
+            f"mean difference {mean:.2f}/255, PSNR {psnr(float(mse.mean())):.2f} dB",
+            f"most different: frame {worst} ({worst / fps:.2f} s) {float(mae[worst]):.2f}/255",
+            f"least different: frame {best} ({best / fps:.2f} s) {float(mae[best]):.2f}/255",
+            *notes])
+        print(f"[BFS Video Compare] {report}", flush=True)
+        sub = os.path.relpath(out_dir, folder_paths.get_temp_directory())
+        files = {k: {"filename": f, "subfolder": sub, "type": "temp"} for k, f in names.items()}
+        refs = [{"filename": f, "subfolder": sub, "type": "temp"} for f in save_refs(reference, out_dir, PH)]
+        ui = {"bfs_compare": [{**files, "fps": float(fps), "frames": n, "width": PW, "height": PH,
+                               "labels": [label_guide, label_target], "mae": [round(float(x), 2) for x in mae],
+                               "refs": refs,
+                               "report": report, "notes": notes}]}
+        return {"ui": ui, "result": (diff_map, report, mean)}
+
+
+# ---------------------------------------------------------------------------- save / record: the browser's file -> a shareable one
+
+EXPORT_FORMATS = {   # what the player's format list offers; "webm" never reaches the server (the browser's own file)
+    "mp4": "MP4 (H.264)",
+    "small": "MP4 small (under 10 MB)",
+    "gif": "GIF (under 10 MB, no sound)",
+}
+LIMIT_BYTES = int(9.5 * 1024 * 1024)   # under the 10 MB many chat apps accept for free
+_ID = re.compile(r"^[0-9a-f]{8,32}$")
+
+
+def _export_dir() -> str:
+    d = os.path.join(folder_paths.get_temp_directory(), "bfs_compare", "exports")
+    os.makedirs(d, exist_ok=True)
+    return d
+
+
+def write_part(rid: str, offset: int, data: bytes) -> int:
+    """One piece of a recording uploaded by the player (pieces keep big recordings under the upload limit)."""
+    if not _ID.match(rid or "") or offset < 0:
+        raise ValueError("bad recording id / offset")
+    path = os.path.join(_export_dir(), f"{rid}.rec")
+    with open(path, "r+b" if os.path.exists(path) else "wb") as f:
+        f.seek(offset)
+        f.write(data)
+    return len(data)
+
+
+def _run(cmd: list) -> None:
+    r = subprocess.run(cmd, capture_output=True, text=True)
+    if r.returncode != 0:
+        raise RuntimeError(f"ffmpeg failed: {r.stderr.strip()[-600:]}")
+
+
+def encode(src: str, fmt: str, seconds: float, out_base: str) -> str:
+    """The recording `src` (WebM / fragmented MP4 from MediaRecorder, which many apps won't play or preview) as
+    `fmt` -> the written path. Both MP4s are H.264 + AAC, yuv420p, faststart. mp4: CRF 18. small: the bitrate set so
+    the file stays under 9.5 MB (smaller frame when it gets low). gif: palette per video, 15 fps, made smaller until
+    it fits 9.5 MB."""
+    if fmt not in EXPORT_FORMATS:
+        raise ValueError(f"unknown format {fmt!r}")
+    exe = VIO.ffmpeg_bin()
+    if exe is None:
+        return _encode_av(src, fmt, out_base)
+    seconds = max(0.5, float(seconds or 0))
+    even = "scale=trunc(iw/2)*2:trunc(ih/2)*2"
+    if fmt == "gif":
+        out = out_base + ".gif"
+        for width, fps in ((720, 15), (540, 15), (480, 12), (360, 12), (270, 10)):
+            vf = f"fps={fps},scale='min({width},iw)':-2:flags=lanczos,split[a][b];[a]palettegen=stats_mode=diff[p];[b][p]paletteuse=dither=bayer:bayer_scale=4"
+            _run([exe, "-y", "-v", "error", "-i", src, "-vf", vf, "-loop", "0", out])
+            if os.path.getsize(out) <= LIMIT_BYTES:
+                break
+        return out
+    out = out_base + ".mp4"
+    if fmt == "mp4":
+        _run([exe, "-y", "-v", "error", "-i", src, "-vf", even, "-c:v", "libx264", "-preset", "medium", "-crf", "18",
+              "-pix_fmt", "yuv420p", "-c:a", "aac", "-b:a", "192k", "-movflags", "+faststart", out])
+        return out
+    audio_k = 128
+    for shrink in (1.0, 0.92, 0.8):   # a VBR encode can overshoot a little: a second, lower try
+        kbps = int(min(8000, max(250, LIMIT_BYTES * 8 / 1000 / seconds * shrink - audio_k)))
+        vf = even if kbps >= 1500 else "scale=-2:'min(720,ih)':flags=lanczos," + even if kbps >= 700 else \
+            "scale=-2:'min(480,ih)':flags=lanczos," + even
+        _run([exe, "-y", "-v", "error", "-i", src, "-vf", vf, "-c:v", "libx264", "-preset", "medium",
+              "-b:v", f"{kbps}k", "-maxrate", f"{int(kbps * 1.4)}k", "-bufsize", f"{kbps * 2}k", "-pix_fmt", "yuv420p",
+              "-r", "30", "-c:a", "aac", "-b:a", f"{audio_k}k", "-ac", "2", "-movflags", "+faststart", out])
+        if os.path.getsize(out) <= LIMIT_BYTES:
+            break
+    return out
+
+
+def _encode_av(src: str, fmt: str, out_base: str) -> str:
+    """No ffmpeg program: decode with PyAV and write an MP4 (no sound) or a GIF (PIL); 'small' at most 720p."""
+    import av
+    from PIL import Image
+    frames, fps = [], 30.0
+    with av.open(src) as c:
+        st = c.streams.video[0]
+        fps = float(st.average_rate or st.guessed_rate or 30)
+        for f in c.decode(st):
+            frames.append(f.to_ndarray(format="rgb24"))
+    if not frames:
+        raise RuntimeError("the recording has no frames")
+    h, w = frames[0].shape[:2]
+    if fmt == "gif":
+        out = out_base + ".gif"
+        step = max(1, round(fps / 12))
+        for side in (540, 400, 300, 220):
+            k = min(1.0, side / max(h, w))
+            ims = [Image.fromarray(x).resize((max(2, int(w * k)), max(2, int(h * k))), Image.LANCZOS) for x in frames[::step]]
+            ims[0].save(out, save_all=True, append_images=ims[1:], duration=int(1000 * step / fps), loop=0, optimize=True)
+            if os.path.getsize(out) <= LIMIT_BYTES:
+                break
+        return out
+    out = out_base + ".mp4"
+    k = 1.0 if fmt == "mp4" else min(1.0, 720 / h)
+    W2, H2 = int(w * k) // 2 * 2, int(h * k) // 2 * 2
+    wr = VIO.Mp4Writer(out, W2, H2, fps, None, crf=18 if fmt == "mp4" else 27, who="BFS Video Compare")
+    try:
+        for a in range(0, len(frames), 16):
+            x = torch.from_numpy(np.stack(frames[a:a + 16])).float() / 255
+            wr.write(_scale(x, H2, W2))
+    finally:
+        wr.close()
+    print("[BFS Video Compare] no ffmpeg program: saved without sound", flush=True)
+    return out
+
+
+def finish_export(rid: str, fmt: str, seconds: float, name: str) -> dict:
+    src = os.path.join(_export_dir(), f"{rid}.rec")
+    if not _ID.match(rid or "") or not os.path.exists(src):
+        raise ValueError("recording not found")
+    stem = re.sub(r"[^\w.-]+", "_", os.path.splitext(name or "bfs_compare")[0])[:80] or "bfs_compare"
+    try:
+        out = encode(src, fmt, seconds, os.path.join(_export_dir(), f"{stem}_{rid[:6]}"))
+    finally:
+        os.remove(src)
+    sub = os.path.relpath(os.path.dirname(out), folder_paths.get_temp_directory()).replace(os.sep, "/")
+    mb = os.path.getsize(out) / 1024 / 1024
+    print(f"[BFS Video Compare] saved {os.path.basename(out)} ({EXPORT_FORMATS[fmt]}, {mb:.1f} MB)", flush=True)
+    return {"filename": os.path.basename(out), "subfolder": sub, "type": "temp", "mb": round(mb, 2)}
+
+
+try:
+    import asyncio
+
+    from aiohttp import web
+    from server import PromptServer
+
+    @PromptServer.instance.routes.post("/bfs/compare/part")
+    async def _bfs_compare_part(request):
+        try:
+            data = await request.read()
+            n = await asyncio.get_running_loop().run_in_executor(
+                None, lambda: write_part(request.query.get("id", ""), int(request.query.get("offset", "-1")), data))
+        except Exception as exc:  # noqa: BLE001
+            return web.json_response({"error": f"{type(exc).__name__}: {exc}"}, status=400)
+        return web.json_response({"written": n})
+
+    @PromptServer.instance.routes.post("/bfs/compare/export")
+    async def _bfs_compare_export(request):
+        try:
+            b = await request.json()
+            r = await asyncio.get_running_loop().run_in_executor(
+                None, lambda: finish_export(b.get("id", ""), b.get("format", ""), float(b.get("seconds") or 0), b.get("name", "")))
+        except Exception as exc:  # noqa: BLE001
+            return web.json_response({"error": f"{type(exc).__name__}: {exc}"}, status=400)
+        return web.json_response(r)
+except Exception as _exc:  # noqa: BLE001 - outside ComfyUI (tests)
+    if "PromptServer" not in repr(_exc) and "server" not in repr(_exc):
+        print(f"[BFS Video Compare] export routes not registered: {_exc!r}", flush=True)
+
+
+NODE_CLASS_MAPPINGS = {"BFSVideoCompare": BFSVideoCompare}
+NODE_DISPLAY_NAME_MAPPINGS = {"BFSVideoCompare": "BFS Video Compare"}
@@ -0,0 +1,217 @@
+"""Video files for the BFS nodes, with or without an ffmpeg program.
+
+The ffmpeg program is found on PATH, else the one bundled by imageio-ffmpeg; with neither (e.g. a Windows portable
+ComfyUI), MP4s are written and read through PyAV, the library ComfyUI's own Save Video uses, so it is always there.
+"""
+import json
+import math
+import os
+import re
+import shutil
+import subprocess
+from fractions import Fraction
+
+import numpy as np
+import torch
+import torch.nn.functional as F
+
+_BIN: dict = {}
+
+
+def ffmpeg_bin() -> str | None:
+    """The ffmpeg program to run, or None."""
+    if "ffmpeg" not in _BIN:
+        exe = shutil.which("ffmpeg")
+        if exe is None:
+            try:
+                import imageio_ffmpeg
+                exe = imageio_ffmpeg.get_ffmpeg_exe()
+            except Exception:  # noqa: BLE001 - optional
+                exe = None
+        _BIN["ffmpeg"] = exe
+    return _BIN["ffmpeg"]
+
+
+def ffprobe_bin() -> str | None:
+    if "ffprobe" not in _BIN:
+        _BIN["ffprobe"] = shutil.which("ffprobe")
+    return _BIN["ffprobe"]
+
+
+def _wav(audio: dict) -> str:
+    import tempfile
+    import wave
+    fd, path = tempfile.mkstemp(suffix=".wav")
+    os.close(fd)
+    wf = audio["waveform"][0].clamp(-1, 1)
+    with wave.open(path, "wb") as f:
+        f.setnchannels(int(wf.shape[0]))
+        f.setsampwidth(2)
+        f.setframerate(int(audio["sample_rate"]))
+        f.writeframes((wf.t().contiguous() * 32767).round().short().numpy().tobytes())
+    return path
+
+
+def _has_audio(audio) -> bool:
+    try:
+        return audio is not None and audio["waveform"].ndim == 3 and audio["waveform"].shape[-1] > 0
+    except Exception:  # noqa: BLE001
+        return False
+
+
+class Mp4Writer:
+    """Frames streamed into an MP4 (H.264, yuv420p, even size) with the soundtrack, one chunk at a time.
+    metadata: tags like Save Video's (prompt, workflow...), values JSON-encoded when not strings."""
+
+    def __init__(self, path: str, w: int, h: int, fps: float, audio: dict | None = None, crf: int = 17,
+                 metadata: dict | None = None, who: str = "BFS"):
+        self.path, self.who, self.wav, self.meta, self.proc, self.av = path, who, None, None, None, None
+        os.makedirs(os.path.dirname(path) or ".", exist_ok=True)
+        exe = ffmpeg_bin()
+        if exe is None:
+            self._open_av(w, h, fps, audio, crf, metadata)
+            return
+        inputs = ["-f", "rawvideo", "-pix_fmt", "rgb24", "-s", f"{w}x{h}", "-r", f"{fps:g}", "-i", "-"]
+        maps, outs = ["-map", "0:v"], []
+        if _has_audio(audio):
+            self.wav = _wav(audio)
+            inputs += ["-i", self.wav]
+            maps += ["-map", "1:a"]
+            outs += ["-c:a", "aac", "-b:a", "192k"]
+        if metadata:   # through an ffmetadata file
+            import tempfile
+            fd, self.meta = tempfile.mkstemp(suffix=".txt")
+            esc = lambda v: re.sub(r"([=;#\\\n])", r"\\\1", v)
+            with os.fdopen(fd, "w", encoding="utf-8") as f:
+                f.write(";FFMETADATA1\n")
+                for k, v in metadata.items():
+                    f.write(f"{esc(str(k))}={esc(v if isinstance(v, str) else json.dumps(v))}\n")
+            maps += ["-map_metadata", str(inputs.count("-i"))]
+            inputs += ["-f", "ffmetadata", "-i", self.meta]
+        cmd = [exe, "-v", "error", "-y", *inputs, *maps, *outs,
+               "-c:v", "libx264", "-preset", "medium", "-crf", str(int(crf)), "-pix_fmt", "yuv420p",
+               "-vf", "pad=ceil(iw/2)*2:ceil(ih/2)*2", "-movflags", "+use_metadata_tags+faststart", path]
+        self.proc = subprocess.Popen(cmd, stdin=subprocess.PIPE, stderr=subprocess.PIPE)
+
+    def _open_av(self, w, h, fps, audio, crf, metadata):
+        import av
+        self.av = av.open(self.path, mode="w", options={"movflags": "use_metadata_tags+faststart"})
+        for k, v in (metadata or {}).items():
+            self.av.metadata[str(k)] = v if isinstance(v, str) else json.dumps(v)
+        self.vs = self.av.add_stream("h264", rate=Fraction(round(float(fps) * 1000), 1000))
+        self.vs.width, self.vs.height = w + w % 2, h + h % 2
+        self.vs.pix_fmt = "yuv420p"
+        self.vs.options = {"crf": str(int(crf)), "preset": "medium"}
+        self.audio = audio if _has_audio(audio) else None
+        if self.audio is not None:
+            ch = int(self.audio["waveform"].shape[1])
+            self.layout = {1: "mono", 2: "stereo"}.get(ch, "stereo")
+            self.as_ = self.av.add_stream("aac", rate=int(self.audio["sample_rate"]), layout=self.layout)
+
+    def write(self, frames: torch.Tensor) -> None:
+        data = (frames[..., :3].clamp(0, 1) * 255).round().to(torch.uint8).contiguous().numpy()
+        if self.proc is not None:
+            self.proc.stdin.write(data.tobytes())
+            return
+        import av
+        h, w = data.shape[1:3]
+        for fr in data:
+            if (h % 2) or (w % 2):
+                fr = np.pad(fr, ((0, h % 2), (0, w % 2), (0, 0)), mode="edge")
+            for p in self.vs.encode(av.VideoFrame.from_ndarray(fr, format="rgb24").reformat(format="yuv420p")):
+                self.av.mux(p)
+
+    def close(self) -> str:
+        if self.proc is not None:
+            self.proc.stdin.close()
+            err = self.proc.stderr.read().decode(errors="replace")
+            self.proc.wait()
+            self._cleanup()
+            if self.proc.returncode != 0:
+                raise RuntimeError(f"{self.who}: ffmpeg could not write {self.path}: {err.strip()[-400:]}")
+            return self.path
+        import av
+        try:
+            for p in self.vs.encode(None):
+                self.av.mux(p)
+            if self.audio is not None:
+                wf = self.audio["waveform"][0, :2].float().clamp(-1, 1).contiguous().numpy()
+                fr = av.AudioFrame.from_ndarray(wf, format="fltp", layout=self.layout)
+                fr.sample_rate, fr.pts = int(self.audio["sample_rate"]), 0
+                for p in self.as_.encode(fr):
+                    self.av.mux(p)
+                for p in self.as_.encode(None):
+                    self.av.mux(p)
+        finally:
+            self.av.close()
+        return self.path
+
+    def abort(self) -> None:
+        try:
+            if self.proc is not None:
+                self.proc.kill()
+            elif self.av is not None:
+                self.av.close()
+        except Exception:  # noqa: BLE001
+            pass
+        self._cleanup()
+
+    def _cleanup(self) -> None:
+        for f in (self.wav, self.meta):
+            if f and os.path.exists(f):
+                os.remove(f)
+
+
+def read_video_scaled(path: str, budget: float) -> tuple[torch.Tensor, float]:
+    """A video file as IMAGE, scaled down (never up) so it takes at most `budget` bytes; streamed into one tensor.
+    Returns (frames, scale)."""
+    exe, probe = ffmpeg_bin(), ffprobe_bin()
+    if exe is None or probe is None:
+        return _read_video_av(path, budget)
+    info = json.loads(subprocess.run([probe, "-v", "error", "-select_streams", "v:0", "-count_packets", "-show_entries",
+                                      "stream=width,height,nb_read_packets", "-of", "json", path],
+                                     capture_output=True, check=True).stdout)["streams"][0]
+    w, h, n = int(info["width"]), int(info["height"]), int(info["nb_read_packets"])
+    s = min(1.0, math.sqrt(max(budget, 1.0) / max(1, n * h * w * 3 * 4)))
+    W, H = max(16, int(w * s) // 2 * 2), max(16, int(h * s) // 2 * 2)
+    out = torch.empty((n, H, W, 3), dtype=torch.float32)
+    proc = subprocess.Popen([exe, "-v", "error", "-i", path, "-vf", f"scale={W}:{H}:flags=area", "-f", "rawvideo",
+                             "-pix_fmt", "rgb24", "-"], stdout=subprocess.PIPE)
+    fb, i = W * H * 3, 0
+    while i < n:
+        raw = proc.stdout.read(fb * 16)
+        if not raw:
+            break
+        k = len(raw) // fb
+        out[i:i + k] = torch.frombuffer(bytearray(raw[:k * fb]), dtype=torch.uint8).view(k, H, W, 3).float() / 255.0
+        i += k
+    proc.stdout.close()
+    proc.wait()
+    return out[:max(1, i)], s
+
+
+def _read_video_av(path: str, budget: float) -> tuple[torch.Tensor, float]:
+    import av
+    with av.open(path) as c:
+        st = c.streams.video[0]
+        w, h = int(st.codec_context.width), int(st.codec_context.height)
+        n = int(st.frames or 0) or int(round(float(st.duration * st.time_base) * float(st.average_rate)) if st.duration
+                                       else 0)
+        s = min(1.0, math.sqrt(max(budget, 1.0) / max(1, max(n, 1) * h * w * 3 * 4)))
+        W, H = max(16, int(w * s) // 2 * 2), max(16, int(h * s) // 2 * 2)
+        chunks, buf = [], []
+        for fr in c.decode(st):
+            buf.append(torch.from_numpy(fr.to_ndarray(format="rgb24")))
+            if len(buf) == 16:
+                chunks.append(_shrink(torch.stack(buf), H, W))
+                buf = []
+        if buf:
+            chunks.append(_shrink(torch.stack(buf), H, W))
+    return (torch.cat(chunks) if chunks else torch.zeros(1, H, W, 3)), s
+
+
+def _shrink(x: torch.Tensor, h: int, w: int) -> torch.Tensor:
+    x = x.float() / 255.0
+    if tuple(x.shape[1:3]) == (h, w):
+        return x
+    return F.interpolate(x.permute(0, 3, 1, 2), size=(h, w), mode="area").permute(0, 2, 3, 1)
@@ -0,0 +1,166 @@
+# Flash Partitions for H3 native temporal alignment
+
+Flash Partitions is an inference implementation of BFS's bounded temporal attention rule. It retains the native video reference and the same temporal RoPE alignment, while evaluating the biased attention through native FlashAttention calls and stable partition merging. It requires no new learned weights and no per-score `torch.compile` kernel.
+
+**Scope:** this is an experimental backend, not a claim of universal acceleration or identity preservation. The equations are equivalent in real arithmetic; FP16/BF16 implementations are not bit-identical. Dense attention still has quadratic work in sequence length.
+
+## 1. What receives the temporal bias?
+
+H3 packs text, reference pictures, native motion-video latents, audio and output-video latents into one sequence. Only **output-video queries consulting the selected motion video's keys** receive our temporal penalty. Image-reference coordinates remain native, as do the guide's spatial coordinates. The guide's temporal RoPE origin is aligned to the output clock before attention.
+
+![Attention scope: only output queries attending to the motion video receive the temporal score penalty.](illustrations/h3_temporal_attention_scope.png)
+
+The matrix above is illustrative, not a measured attention map or actual token-count distribution. Color shows the multiplier of an **unnormalized** softmax weight, not the final attention probability. All keys remain available. Gray edges retain their original score rule; their final normalized probabilities can still change because the softmax denominator changes.
+
+For an affected query/key pair, define:
+
+```text
+dt = abs(output_time - guide_time)
+penalty(dt) = min(strength * (max(dt - window, 0) / falloff)^2, cap)
+modified_score = dot(Q, K) / sqrt(head_dim) - penalty(dt)
+```
+
+Defaults: strength 2.0, window 0.20 seconds, falloff 0.25 seconds, cap 6.0. Both videos must have matching temporal grids. This experiment uses 24 fps. This is a soft preference for corresponding times; it is not a proof of physical motion correspondence.
+
+## 2. Why the original FlexAttention path can be slower
+
+The original backend evaluates a score modifier inside compiled FlexAttention. Its rule includes time lookup, distance, a bounded quadratic penalty and edge selection. The expression is evaluated over attention score tiles across heads and blocks. It never creates a full S×S bias tensor, but the extra per-score work remains.
+
+At 116,883 sequence rows and 56 heads, the conceptual full score space contains roughly 765 billion query/key/head combinations per attention block. Kernels tile that computation rather than storing all those scores simultaneously. A new compiled shape/backend can also require initialization or compilation; native FlashAttention avoids that particular custom-kernel compilation path.
+
+The whole model additionally spends time on projections, MLPs, quantized weights, model management, preview decoding and potentially CPU/GPU offload. Large native guide sequences increase both compute and live tensor sizes. We have not measured each of those contributions in the user's full workflow, so a slow step must not automatically be labeled “compiling” or “offloading.” GPU utilization alone cannot distinguish them.
+
+## 3. Decompose the same rule into positive contributions
+
+Because `0 <= penalty <= cap`, the guide's exponential score factor can be written as:
+
+```text
+exp(-penalty) = exp(-cap) + [exp(-penalty) - exp(-cap)]
+```
+
+Both contributions are nonnegative. At distant times the penalty reaches its cap, so the bracketed local correction is exactly zero. The baseline contribution remains positive: distant guide keys are not removed.
+
+![Temporal weight curve decomposed into a small global baseline and a positive local correction.](illustrations/h3_temporal_weight_decomposition.png)
+
+With the defaults, the correction reaches zero at:
+
+```text
+window + falloff * sqrt(cap / strength)
+= 0.20 + 0.25 * sqrt(6 / 2)
+≈ 0.633 seconds
+```
+
+That threshold applies to the correction, not to the availability of guide keys.
+
+| Time difference | Penalty | Required factor | Global baseline | Local correction |
+|---|---:|---:|---:|---:|
+| 0.00 s | 0.00 | 1.000000 | 0.002479 | 0.997521 |
+| 0.40 s | 1.28 | 0.278037 | 0.002479 | 0.275559 |
+| 0.80 s | 6.00 | 0.002479 | 0.002479 | 0.000000 |
+
+The inference backend computes three types of contributions:
+
+1. All non-motion keys, with ordinary weight 1. They can occupy multiple contiguous segments.
+2. All motion-video keys, with uniform factor `exp(-cap)`.
+3. Nearby motion-frame keys, with factor `exp(-penalty) - exp(-cap)`.
+
+The last two contributions intentionally overlap in their keys. Their exponential weights add to the intended original weight, so this does not double-count the final distribution. All spatial tokens of a source frame have the same temporal correction for a given output frame. Frame batching exploits that repeated structure. It is unrelated to averaging generated RGB frames or merging outputs from separate video generations.
+
+![FlashAttention computes the contribution outputs and log-sum-exp normalizers, followed by a stable weighted merge.](illustrations/h3_flash_partitions_flow.png)
+
+## 4. Why log-sum-exp is necessary
+
+A normal attention call returns a normalized local result. Averaging those results would assign equal importance to partitions with very different softmax mass. We therefore retain each partition's natural-log normalizer, `L_i`.
+
+For partition output `O_i` and nonnegative multiplier `w_i`:
+
+```text
+adjusted_L_i = L_i + log(w_i)
+L = logsumexp(adjusted_L_1, adjusted_L_2, ...)
+O = sum_i exp(adjusted_L_i - L) * O_i
+```
+
+Zero-weight corrections can be omitted. The code uses `logaddexp` for successive merges and `expm1` to calculate small positive correction weights stably. It does not subtract two large attention outputs.
+
+Output-frame chunks default to eight latent frames. This bounds the temporary merge buffers. It does not crop the output into independently generated clips or restrict the keys to those eight frames. Queries outside the output video use ordinary full attention.
+
+Setting strength or cap to zero removes the score penalty in this backend; the separate temporal RoPE alignment remains active. Bypassing the temporal node/mode removes both changes.
+
+## 5. What was measured?
+
+### Isolated synthetic attention
+
+RTX PRO 6000 Blackwell, PyTorch 2.12.0+cu130, BF16, 107,126 tokens, 8 heads, head dimension 128:
+
+| Backend | Approximate attention call time |
+|---|---:|
+| Unmodified native PyTorch FlashAttention | 0.327 s |
+| Flash Partitions | 0.422 s |
+| Original temporal FlexAttention | 0.628 s |
+
+The training process was running concurrently. These short microbenchmarks indicate about 1.5× improvement over the original temporal backend for that tested shape; they are not a controlled full-model speed claim, do not use H3's full 56 heads and do not establish RTX 5090 performance. For a small 2,272-token shape, partition-launch/merge overhead made this backend slower than FlexAttention. There is no universally fastest choice demonstrated here.
+
+A separate small CUDA comparison against SDPA with an explicit temporal bias measured relative output norm error 0.00452 in BF16. CPU tests exercise the decomposition against the original score rule at multiple strengths/caps and with frame-chunk boundaries. This validates numerical behavior, not identity or motion quality.
+
+### User-reported full-workflow logs
+
+RTX 5090, requested output 544×928 and 360 frames:
+
+| Temporal backend | Guide scale | Guide rows | Packed rows | First complete model evaluation |
+|---|---:|---:|---:|---:|
+| Flash Partitions | 1.0 | 52,751 | 116,883 | 179.18 s |
+| Flash Partitions | 0.5 | 11,984 | 70,020 | 54.45 s |
+
+The second model evaluation at scale 0.5 was reported as 47.19 s. These are user logs, not a controlled benchmark with all settings and warm-up conditions audited. The original Flex sampler's first step was reported as 603.40 s, including initialization, so it is not directly comparable to a warmed-up attention call.
+
+The separately reported first-attention times were 2.689 s at scale 1.0 and 4.113 s at scale 0.5. That first-call measurement is not representative of every block; do not multiply it by the number of blocks to estimate the full step. Whole-model evaluation timing is the more useful end-to-end observation here.
+
+## 6. How to use it
+
+See [native temporal setup](../H3_NATIVE_TEMPORAL.md) for MODEL routing and the conditioning contract.
+
+- Standalone node: select `attention_backend = flash partitions (no compile)`.
+- Shot Conditioning: select `guide_mode = native temporal alignment (experimental)` and `native_temporal_backend = flash partitions (no compile)`.
+- Use only one temporal patch on the MODEL path. Keep Add Guide and conflicting attention/block replacements disabled.
+- `native_guide_scale = 1.0` preserves source detail. Try 0.5 for a lower-token motion reference; this keeps output dimensions, identity images and all guide frames/timestamps, but reduces guide spatial detail. H3 dimension rounding means the token reduction is not exactly fourfold.
+- For standalone conditioning, resize only the guide video before native Reference to Video to obtain that spatial reduction.
+
+The selected video is still VAE-encoded as a native reference. “Add Guide OFF” does not mean “no guide-video latents.” Qwen also sees the native video presentation. Reducing Qwen sampling alone would not remove the native DiT reference tokens.
+
+## 7. Backend requirements and limitations
+
+The current compile-free path calls PyTorch's native CUDA FlashAttention primitive with log-sum-exp outputs. It requires CUDA FP16/BF16 and a compatible PyTorch build. It is inference-only, supports one packed self-attention sequence and requires contiguous video rows, fixed spatial token count per frame and matching guide/output temporal grids. It does not use the ComfyUI attention backend selector for the modified main attention.
+
+Comfy Kitchen INT8 attention's audited public API returns the output tensor but no log-sum-exp normalizer. It is therefore not a drop-in replacement for these partition calls. Its support for masks does not by itself provide a fused temporal rule without constructing a bias representation. The separate [experimental Kitchen frame-wise backend](../H3_NATIVE_TEMPORAL.md#comfy-kitchen-and-model-attention-backend-111513), added in 1.115.13, avoids partition merging by using a broadcast key bias per target latent frame. It automatically honors the official Model Attention Backend selection. Its initial diagnostic was slower than Flash Partitions; it is not a drop-in partition kernel replacement.
+
+Flash Partitions preserves the dense score policy and its quadratic work. More speed may require reducing native guide tokens, improving kernels/merges or choosing a measured alternative. Hard windows, sparse routing or independently generated temporal chunks would change behavior and need separate quality evaluation.
+
+Alignment does not guarantee identity binding. The user has reported useful results from the existing 10500 LoRA plus this patch, and weaker identity retention from an early fresh-native checkpoint. Those are qualitative observations, not a matched-training comparison or evidence that the patch alone teaches swapping. No LoRA strength ramp, image-reference boost or identity loss is implemented by this backend.
+
+## Native one-pass Kitchen extension
+
+From 1.115.16, the optional [native Kitchen temporal extension](../H3_NATIVE_TEMPORAL.md#one-pass-native-kitchen-kernels-111516) fuses the temporal rule into dense INT8 and sol-attn kernels. It removes the per-frame attention loop. Initial full-head diagnostics were faster than Flash Partitions, while visual/end-to-end validation remains pending. From 1.115.17, first-use setup is automatic on supported Linux SM120 systems with a CUDA-13-capable driver; manual installation remains available elsewhere.
+
+## Experimental sol-attn compatibility
+
+Version 1.115.14 can recognize Model Sparse Attention with sol-attn and preserve the temporal score rule via repeated frame-wise calls. This initial compatibility path was slower than Flash Partitions; it is not the proposed fast one-pass sparse kernel. See [implementation limits and measurements](../H3_NATIVE_TEMPORAL.md#model-sparse-attention-sol-attn-compatibility-111514). SLA and VSA remain unsupported.
+
+## Video example
+
+See the [synchronized six-column video and interpretation](../H3_NATIVE_TEMPORAL.md#video-comparison-an-add-guide-trained-lora-with-native-temporal-alignment), including the step-10500 Add Guide-trained LoRA running with the new native temporal method. The separate early step-750 identity-drift report is distinguished there.
+
+## Source and reproducible figures
+
+- [Partition planning, native FlashAttention and stable merge](../minimax_h3_temporal_fast.py)
+- [MODEL wrapper, layout alignment and backend selection](../minimax_h3_native_temporal.py)
+- [Original temporal score policy / Flex backend](../minimax_h3_native_temporal_core.py)
+- [Numerical decomposition test](../tests/test_minimax_h3_temporal_fast.py)
+- [Figure source](illustrations/render_h3_flash_partitions.py), with exported SVGs beside the PNGs.
+
+Figures can be regenerated on CPU with Python, NumPy and Matplotlib:
+
+```bash
+python docs/illustrations/render_h3_flash_partitions.py
+```
+
+The illustrations describe the mechanism; they are not generated attention measurements or model-output examples.
@@ -0,0 +1,39 @@
+{
+  "probe": {
+    "torch": "2.12.0+cu130",
+    "kitchen": "0.2.35",
+    "status": "passed",
+    "relative_error": 0.01505568902939558,
+    "first_call_seconds": 1.416990154015366,
+    "shape": [
+      1,
+      2,
+      1248,
+      128
+    ],
+    "bias_elements": 8736,
+    "gpu": "NVIDIA RTX PRO 6000 Blackwell Workstation Edition",
+    "peak_allocated_bytes": 29803008
+  },
+  "benchmark": {
+    "torch": "2.12.0+cu130",
+    "kitchen": "0.2.35",
+    "status": "passed",
+    "seconds": {
+      "flash_partitions": 0.017392314039170742,
+      "kitchen_frame_bias": 0.10426661401288584
+    },
+    "shape": [
+      1,
+      2,
+      42836,
+      128
+    ],
+    "frames": 22,
+    "guide_rows": 7062,
+    "bias_elements": 942392,
+    "gpu": "NVIDIA RTX PRO 6000 Blackwell Workstation Edition",
+    "peak_allocated_bytes": 146629120,
+    "conditions": "One warmup and one timed evaluation per backend; 2 heads, not full H3; concurrent Swap Anything training; not an end-to-end speed benchmark"
+  }
+}
@@ -0,0 +1,137 @@
+{
+  "verification": {
+    "torch": "2.12.0+cu130",
+    "gpu": "NVIDIA RTX PRO 6000 Blackwell Workstation Edition",
+    "cases": [
+      {
+        "dtype": "torch.bfloat16",
+        "shape": [
+          1,
+          2,
+          53,
+          128
+        ],
+        "dense_vs_fp32": 0.012292885221540928,
+        "sol_exact_vs_fp32": 0.011282283812761307,
+        "sol_onepass_vs_framewise": 0.0,
+        "finite": true
+      },
+      {
+        "dtype": "torch.bfloat16",
+        "shape": [
+          1,
+          2,
+          1253,
+          128
+        ],
+        "dense_vs_fp32": 0.015596109442412853,
+        "sol_exact_vs_fp32": 0.013514556922018528,
+        "sol_onepass_vs_framewise": 2.1619540348183364e-05,
+        "finite": true
+      },
+      {
+        "dtype": "torch.float16",
+        "shape": [
+          1,
+          2,
+          53,
+          128
+        ],
+        "dense_vs_fp32": 0.013024155050516129,
+        "sol_exact_vs_fp32": 0.011345107108354568,
+        "sol_onepass_vs_framewise": 0.0,
+        "finite": true
+      },
+      {
+        "dtype": "torch.float16",
+        "shape": [
+          1,
+          2,
+          1253,
+          128
+        ],
+        "dense_vs_fp32": 0.015380656346678734,
+        "sol_exact_vs_fp32": 0.013211732730269432,
+        "sol_onepass_vs_framewise": 5.5366094784403685e-06,
+        "finite": true
+      }
+    ],
+    "status": "passed"
+  },
+  "edge_and_bridge": {
+    "cases": [
+      {
+        "strength": 10.0,
+        "cap": 0.01,
+        "window": 0.2,
+        "dense_error": 0.015495287254452705,
+        "sol_exact_error": 0.013426524586975574
+      },
+      {
+        "strength": 0.1,
+        "cap": 30.0,
+        "window": 0.2,
+        "dense_error": 0.015566659159958363,
+        "sol_exact_error": 0.013471982441842556
+      },
+      {
+        "strength": 0.0,
+        "cap": 6.0,
+        "window": 0.0,
+        "dense_error": 0.015584140084683895,
+        "sol_exact_error": 0.01359549630433321
+      },
+      {
+        "strength": 2.0,
+        "cap": 0.0,
+        "window": 0.2,
+        "dense_error": 0.015431488864123821,
+        "sol_exact_error": 0.01330660656094551
+      }
+    ],
+    "bridge_native_calls": {
+      "dense": 1,
+      "sol": 1
+    },
+    "stream_isolation": "passed",
+    "status": "passed"
+  },
+  "benchmark": {
+    "torch": "2.12.0+cu130",
+    "gpu": "NVIDIA RTX PRO 6000 Blackwell Workstation Edition",
+    "conditions": "Concurrent training; isolated attention; one warmup + one timed evaluation per implementation; no end-to-end speed claim",
+    "rows": [
+      {
+        "shape": [
+          1,
+          2,
+          42836,
+          128
+        ],
+        "seconds": {
+          "flash_partitions": 0.01711059600347653,
+          "kitchen_framewise": 0.10465262399520725,
+          "kitchen_onepass": 0.011890062014572322,
+          "sol_framewise": 0.15987364604370669,
+          "sol_onepass": 0.01116465002996847
+        }
+      },
+      {
+        "shape": [
+          1,
+          56,
+          42836,
+          128
+        ],
+        "seconds": {
+          "flash_partitions": 0.42317933501908556,
+          "kitchen_framewise": 0.5413047629990615,
+          "kitchen_onepass": 0.24634322000201792,
+          "sol_framewise": 2.675203786988277,
+          "sol_onepass": 0.21625870000571012
+        }
+      }
+    ],
+    "status": "passed"
+  }
+}
@@ -0,0 +1,61 @@
+{
+  "probe": {
+    "torch": "2.12.0+cu130",
+    "kitchen": "0.2.35",
+    "status": "finite_sparse_output",
+    "relative_error": 0.46068075299263,
+    "forced_all_keys_exact_relative_error": 0.013319959864020348,
+    "first_call_seconds": 1.1965116760111414,
+    "shape": [
+      1,
+      2,
+      1248,
+      128
+    ],
+    "bias_elements": 8736,
+    "gpu": "NVIDIA RTX PRO 6000 Blackwell Workstation Edition",
+    "peak_allocated_bytes": 29803008
+  },
+  "benchmark": {
+    "torch": "2.12.0+cu130",
+    "kitchen": "0.2.35",
+    "status": "passed",
+    "seconds": {
+      "flash_partitions": 0.017417979950550944,
+      "sol_frame_bias": 0.16037049802253023
+    },
+    "shape": [
+      1,
+      2,
+      42836,
+      128
+    ],
+    "frames": 22,
+    "guide_rows": 7062,
+    "bias_elements": 942392,
+    "gpu": "NVIDIA RTX PRO 6000 Blackwell Workstation Edition",
+    "peak_allocated_bytes": 210820096,
+    "conditions": "One warmup and one timed evaluation per backend; 2 heads, not full H3; concurrent Swap Anything training; not an end-to-end speed benchmark"
+  },
+  "benchmark_h56": {
+    "torch": "2.12.0+cu130",
+    "kitchen": "0.2.35",
+    "status": "passed",
+    "seconds": {
+      "flash_partitions": 0.41910952096804976,
+      "sol_frame_bias": 2.6489629900315776
+    },
+    "shape": [
+      1,
+      56,
+      42836,
+      128
+    ],
+    "frames": 22,
+    "guide_rows": 7062,
+    "bias_elements": 942392,
+    "gpu": "NVIDIA RTX PRO 6000 Blackwell Workstation Edition",
+    "peak_allocated_bytes": 5760942592,
+    "conditions": "One warmup and one timed evaluation per backend; 56 heads; isolated attention, not a full H3 model evaluation; concurrent Swap Anything training; not an end-to-end speed benchmark"
+  }
+}
@@ -0,0 +1,22 @@
+{
+  "first_use": {
+    "status": "passed",
+    "version": "h3_native_temporal_kernel_v1",
+    "shape": [
+      1,
+      2,
+      83,
+      128
+    ],
+    "dense_and_sol_finite": true
+  },
+  "fresh_process_offline_cache": {
+    "status": "passed",
+    "network_requests": 0,
+    "api_version": "h3_native_temporal_kernel_v1",
+    "api_file": "temporal_attention.py"
+  },
+  "platform": "Linux x86_64 / RTX PRO 6000 Blackwell SM120 / CUDA 13 driver",
+  "automatic_component_release": "h3-native-temporal-kernel-v1",
+  "source_commit": "9953b6caec7a5cb3e2486dd97a365f7af44eedad"
+}
@@ -0,0 +1,67 @@
+"""Render explanatory figures; no model inference or GPU required."""
+from pathlib import Path
+import numpy as np
+import matplotlib
+matplotlib.use('Agg')
+import matplotlib.pyplot as plt
+from matplotlib.patches import Rectangle, FancyBboxPatch
+
+OUT=Path(__file__).parent
+plt.rcParams.update({'font.family':'DejaVu Sans','font.size':11,'savefig.facecolor':'white','svg.hashsalt':'h3-flash-partitions'})
+
+def save(fig,name):
+    for ext in ['png','svg']:
+        path=OUT/(name+'.'+ext)
+        fig.savefig(path,dpi=160,bbox_inches='tight',metadata={'Date':None} if ext=='svg' else None)
+        if ext=='svg':path.write_text('\n'.join(line.rstrip() for line in path.read_text().splitlines())+'\n')
+    plt.close(fig)
+
+# Conceptual groups: equal spacing within each video, not actual H3 token counts.
+fig,ax=plt.subplots(figsize=(10,7))
+n=170;rgb=np.full((n,n,3),.91)
+t=np.linspace(0,4,60);dt=np.abs(t[:,None]-t[None,:])
+p=np.minimum(2*(np.maximum(dt-.2,0)/.25)**2,6);weights=np.exp(-p)
+rgb[110:170,40:100]=plt.get_cmap('YlOrRd')(weights)[...,:3]
+ax.imshow(rgb,interpolation='nearest',origin='upper')
+bounds=[0,20,40,100,110,170];names=['Text','Pictures','Motion video','Audio','Output video']
+centers=[(a+b-1)/2 for a,b in zip(bounds,bounds[1:])]
+ax.set_xticks(centers,names);ax.set_yticks(centers,names)
+ax.xaxis.tick_top();ax.xaxis.set_label_position('top')
+ax.set_xlabel('Keys: what the model can consult',labelpad=14)
+ax.set_ylabel('Queries: what is being updated')
+for b in bounds[1:-1]:ax.axhline(b-.5,color='white',lw=2);ax.axvline(b-.5,color='white',lw=2)
+ax.add_patch(Rectangle((39.5,109.5),60,60,fill=False,edgecolor='#111827',lw=2))
+ax.set_title('The temporal bias changes one family of attention edges',pad=55,weight='bold')
+fig.text(.12,.02,'Gray: unchanged score rule. Colored block: output queries consulting the motion video.\nNear-time keys retain weight 1; distant keys retain a small positive weight. No hard mask.',fontsize=10)
+sm=plt.cm.ScalarMappable(norm=plt.Normalize(0,1),cmap='YlOrRd');fig.colorbar(sm,ax=ax,shrink=.65,label='Unnormalized weight multiplier exp(-penalty)')
+save(fig,'h3_temporal_attention_scope')
+
+fig,ax=plt.subplots(figsize=(11,5))
+x=np.linspace(0,1.1,600);penalty=np.minimum(2*(np.maximum(x-.2,0)/.25)**2,6)
+baseline=np.exp(-6);full=np.exp(-penalty);correction=full-baseline
+ax.plot(x,full,color='#172554',lw=3,label='Required weight: exp(-penalty)')
+ax.plot(x,np.full_like(x,baseline),color='#ea580c',lw=2,ls='--',label='Global guide contribution: exp(-6)')
+ax.fill_between(x,baseline,full,color='#22c55e',alpha=.35,label='Positive local correction: exp(-penalty) - exp(-6)')
+ax.axvline(.2,color='#64748b',ls=':');ax.axvline(.2+.25*np.sqrt(3),color='#64748b',ls=':')
+ax.text(.205,.91,'0.20 s\nfree window',fontsize=10)
+ax.text(.65,.5,'Beyond ~0.633 s:\ncorrection is zero,\nbaseline remains',fontsize=10)
+ax.set(xlabel='Absolute time difference between output and guide (seconds)',ylabel='Multiplier of unnormalized softmax weight',ylim=(-.03,1.08),xlim=(0,1.1))
+ax.set_title('Same temporal rule, decomposed into positive contributions',weight='bold')
+ax.legend(loc='upper right',fontsize=9);ax.grid(alpha=.18)
+fig.tight_layout();save(fig,'h3_temporal_weight_decomposition')
+
+fig,ax=plt.subplots(figsize=(14,7));ax.set(xlim=(0,14),ylim=(0,7));ax.axis('off')
+def box(x,y,w,h,text,color):
+ ax.add_patch(FancyBboxPatch((x,y),w,h,boxstyle='round,pad=0.12',facecolor=color,edgecolor='#475569',lw=1.2))
+ ax.text(x+w/2,y+h/2,text,ha='center',va='center',fontsize=10)
+def arrow(a,b):ax.annotate('',xy=b,xytext=a,arrowprops=dict(arrowstyle='->',lw=1.6,color='#475569'))
+box(.2,2.8,2,1.2,'Output-video\nquery chunk','#dbeafe')
+parts=[(5.05,'Other keys\nweight = 1','#ede9fe'),(2.85,'All motion-video keys\nweight = exp(-cap)','#ffedd5'),(.65,'Nearby motion-frame keys\nweight = exp(-penalty) - exp(-cap)','#dcfce7')]
+for y,text,color in parts:
+ box(3,y,4,1.3,text,color);arrow((2.3,3.4),(2.8,y+.65))
+ box(7.7,y,2.3,1.3,'Native FlashAttention\noutput + logsumexp',color);arrow((7.15,y+.65),(7.5,y+.65));arrow((10.15,y+.65),(10.8,3.4))
+box(11,2.65,2.7,1.5,'Stable weighted merge\n\nSame biased softmax','#dbeafe')
+ax.text(7,6.7,'Flash Partitions: reuse dense kernels instead of compiling a per-score rule',ha='center',weight='bold',fontsize=13)
+ax.text(.2,.04,'Guide contributions overlap intentionally; their weights sum to the original weight.\nQueries outside the output video use ordinary attention. Spatial tokens are retained; corrections are batched by frame.',fontsize=10)
+save(fig,'h3_flash_partitions_flow')
+print('Rendered 3 PNG and 3 SVG figures')
@@ -0,0 +1,159 @@
+"""H3 video context in Qwen embeddings without a native video-latent reference."""
+import math
+import time
+from dataclasses import replace
+
+from comfy_extras.nodes_minimax_h3 import MiniMaxH3ReferenceToVideo
+from comfy_api.latest import io
+
+
+class _VideoContextClip:
+    """Request-local adapter; never changes the user's CLIP or cached conditioning."""
+
+    def __init__(self, clip, items):
+        self._clip = clip
+        self._items = items
+
+    def __getattr__(self, name):
+        return getattr(self._clip, name)
+
+    def tokenize(self, text, **kwargs):
+        items = list(kwargs.get("minimax_ref_items") or [])
+        # Pictures keep their numbering. Context videos precede any explicit
+        # native video/audio references, so the shot remains <Video 1>.
+        index = 0
+        while index < len(items) and items[index].get("type") == "image":
+            index += 1
+        kwargs["minimax_ref_items"] = items[:index] + self._items + items[index:]
+        tokens = self._clip.tokenize(text, **kwargs)
+        def count_video_blocks(value):
+            if isinstance(value, dict):
+                if value.get("minimax_video_block") is True:
+                    return 1
+                return sum(count_video_blocks(v) for k, v in value.items() if k != "data")
+            if isinstance(value, (list, tuple)):
+                return sum(count_video_blocks(v) for v in value)
+            return 0
+        expected = sum((item["data"].shape[0] + 1) // 2 for item in self._items)
+        actual = count_video_blocks(tokens)
+        if actual < expected:
+            raise ValueError("CLIP did not produce the H3 video vision blocks. Use the native MiniMax H3 CLIP loader.")
+        print(f"[BFS H3 CLIP context] tokenizer confirmed {actual} video vision blocks "
+              f"(guide requires {expected}); encoding next", flush=True)
+        return tokens
+
+    def encode_from_tokens_scheduled(self, tokens, *args, **kwargs):
+        start = time.perf_counter()
+        result = self._clip.encode_from_tokens_scheduled(tokens, *args, **kwargs)
+        shapes = [tuple(entry[0].shape) for entry in result]
+        print(f"[BFS H3 CLIP context] Qwen encoding complete in {time.perf_counter() - start:.2f}s; "
+              f"conditioning shapes={shapes}. Guide native video reference blocks: 0", flush=True)
+        return result
+
+
+def clip_with_video_context(clip, videos, length, source_fps=24.0, context_fps=2.0):
+    """Native H3 24-fps frame convention, presented to Qwen at a selectable sampling rate.
+
+    Only selected frames are resized. No video VAE encoding or minimax_refs
+    video block is created here. Real image reference blocks are unaffected.
+    """
+    from comfy_extras.nodes_minimax_h3 import (
+        CANVAS_MULTIPLE, _resize, adapt_canvas, temporal_shape,
+    )
+
+    if not math.isfinite(source_fps) or source_fps <= 0:
+        raise ValueError("CLIP video context needs a positive source frame rate")
+    if not math.isfinite(context_fps) or not 0.5 <= context_fps <= 24:
+        raise ValueError("clip_video_fps must be between 0.5 and 24")
+    effective_fps = min(context_fps, source_fps)
+    frame_count = temporal_shape(length)[0]
+    items = []
+    for frames in (videos or {}).values():
+        if frames is None:
+            continue
+        if frames.ndim != 4 or frames.shape[-1] < 3:
+            raise ValueError("CLIP video context needs IMAGE frames [frames, height, width, channels]")
+        n = min(frames.shape[0], frame_count)
+        if n < 5:
+            raise ValueError("H3 CLIP video context needs at least 5 frames at the native 24 fps")
+        n -= (n - 5) % 17
+        height, width = frames.shape[1:3]
+        cw, ch = adapt_canvas(width, height)
+        if width * height < cw * ch:
+            cw = max(CANVAS_MULTIPLE, round(width / CANVAS_MULTIPLE) * CANVAS_MULTIPLE)
+            ch = max(CANVAS_MULTIPLE, round(height / CANVAS_MULTIPLE) * CANVAS_MULTIPLE)
+        indices = sorted({round(i * source_fps / effective_fps)
+                          for i in range(math.ceil(n / source_fps * effective_fps))
+                          if round(i * source_fps / effective_fps) < n})
+        selected = _resize(frames[indices], cw, ch, "disabled")
+        times = [index / source_fps for index in indices]
+        preview = times if len(times) <= 6 else times[:3] + times[-3:]
+        print(f"[BFS H3 CLIP context] guide: input={frames.shape[0]} frames at {source_fps:g} fps; "
+              f"used={n}; requested={context_fps:g} fps, effective={effective_fps:g} fps; "
+              f"sent={len(indices)} RGB frames at {cw}x{ch}; "
+              f"timestamps={[round(t, 3) for t in preview]} seconds (first/last); "
+              "native guide video reference latents: OFF", flush=True)
+        items.append({"type": "video", "data": selected,
+                      "timestamps": [index / source_fps for index in indices]})
+    return _VideoContextClip(clip, items) if items else clip
+
+
+class BFSMiniMaxH3ReferenceToVideoGuideContext(MiniMaxH3ReferenceToVideo):
+    @classmethod
+    def define_schema(cls):
+        schema = MiniMaxH3ReferenceToVideo.define_schema()
+        # Keep native image/video/audio reference semantics. The separately
+        # named guide is the only video excluded from native reference latents.
+        inputs = list(schema.inputs)
+        inputs.insert(1, io.Image.Input(
+            "guide_video_0", optional=True,
+            tooltip=("The motion guide / current shot, as native 24-fps frames. Qwen sees it at clip_video_fps "
+                     "as <Video 1>; no native guide video reference latents are added. Connect the "
+                     "same frames to Add Guide for motion. Other ref_videos start at <Video 2>."),
+        ))
+        inputs.append(io.Float.Input(
+            "clip_video_fps", default=2.0, min=0.5, max=24.0, step=0.5,
+            tooltip=("Guide 0 sampling rate for Qwen only. Default/native presentation is 2 fps; "
+                     "try 4 or 8 fps. Higher values increase context and encoding cost, not output fps. "
+                     "Never duplicates frames above the source rate. Actual reference videos stay native 2 fps."),
+        ))
+        for item in inputs:
+            if item.id == "ref_images":
+                item.template = io.Autogrow.TemplatePrefix(
+                    input=io.Image.Input("ref_image", tooltip="Reference image, in <Picture N> order"),
+                    prefix="ref_image_", min=0, max=100,
+                )
+            elif item.id == "ref_videos":
+                item.tooltip = ("Actual native video references, separate from guide_video_0. With a guide "
+                                "connected, these are <Video 2>, <Video 3>, etc. They enter both CLIP and "
+                                "native reference latents, as in the original node. Up to 3 reference videos.")
+                item.template.input.tooltip = item.tooltip
+        return replace(
+            schema, node_id="BFSMiniMaxH3ReferenceToVideoGuideContext",
+            display_name="MiniMax H3 Reference to Video — Guide 0 CLIP Context (BFS)",
+            description=("guide_video_0 enters Qwen/CLIP only as <Video 1>, without native guide video "
+                         "reference latents. Pictures and other reference videos retain native semantics. "
+                         "Use Add Guide separately for aligned motion. The target latent starts empty."),
+            inputs=inputs,
+        )
+
+    @classmethod
+    def execute(cls, clip, prompt, width, height, length, ref_image_size="match", vae=None,
+                audio_vae=None, guide_video_0=None, ref_images=None, ref_videos=None,
+                ref_video_audios=None, ref_audios=None, clip_video_fps=2.0):
+        if guide_video_0 is not None:
+            clip = clip_with_video_context(clip, {"guide_video_0": guide_video_0}, length, context_fps=clip_video_fps)
+        return MiniMaxH3ReferenceToVideo.execute(
+            clip=clip, prompt=prompt, width=width, height=height, length=length,
+            ref_image_size=ref_image_size, vae=vae, audio_vae=audio_vae,
+            ref_images=ref_images, ref_videos=ref_videos,
+            ref_video_audios=ref_video_audios, ref_audios=ref_audios,
+        )
+
+
+NODE_CLASS_MAPPINGS = {
+    "BFSMiniMaxH3ReferenceToVideoGuideContext": BFSMiniMaxH3ReferenceToVideoGuideContext,
+}
+NODE_DISPLAY_NAME_MAPPINGS = {
+    "BFSMiniMaxH3ReferenceToVideoGuideContext": "MiniMax H3 Reference to Video — Guide 0 CLIP Context (BFS)",
+}
@@ -0,0 +1,243 @@
+"""Experimental native H3 temporal inference, matching ai-toolkit native_temporal_v1.
+
+Per-model wrappers only: no global ComfyUI monkey patches or extra weights.
+"""
+import copy
+import inspect
+import math
+import time
+import torch
+try:
+    from . import minimax_h3_native_temporal_core as core
+    from . import minimax_h3_temporal_fast as fast
+    from . import minimax_h3_temporal_kitchen as kitchen
+    from . import minimax_h3_temporal_sol as sol
+    from . import minimax_h3_sparse_compat as sparse_compat
+except ImportError:
+    import minimax_h3_native_temporal_core as core
+    import minimax_h3_temporal_fast as fast
+    import minimax_h3_temporal_kitchen as kitchen
+    import minimax_h3_temporal_sol as sol
+    import minimax_h3_sparse_compat as sparse_compat
+
+MARKER = 'bfs_h3_native_temporal_v1'
+SOL_BACKEND = 'sol-attn frame bias (experimental)'
+BACKENDS = ['flash partitions (no compile)', 'flex (original)', 'comfy kitchen (experimental)']
+
+def dense_backend_selection(override):
+    if override is None:
+        return None
+    # Recognize only ComfyUI's actual ModelPatcher setter wrapper and official
+    # registered dense kernels, never arbitrary attention replacements by name.
+    if getattr(override, '__module__', '') != 'comfy.model_patcher' or not getattr(override, '__qualname__', '').endswith('set_model_optimized_attention.<locals>.optimized_attention_override'):
+        raise ValueError('Native temporal alignment conflicts with another attention replacement. Remove VSA/sparse or unknown attention patches.')
+    try:
+        from comfy.ldm.modules.attention import get_attention_function
+        selected = inspect.getclosurevars(override).nonlocals['optimized_attention']
+    except (ImportError, KeyError, TypeError) as exc:
+        raise ValueError('Unable to identify the Model Attention Backend selection.') from exc
+    for name in ('comfy_kitchen_int8', 'pytorch'):
+        if selected is get_attention_function(name, None) and selected is not None:
+            return name
+    raise ValueError('Unsupported Model Attention Backend for native temporal alignment.')
+
+
+
+def temporal_layout(native, refs, keyframes, video_index=1):
+    if keyframes:
+        raise ValueError('Native temporal mode cannot be combined with Add Guide, first-frame guides or history. Remove those guides.')
+    required = ('position_ids', 'segments', 'seq_len', 'signature')
+    if any(not hasattr(native, x) for x in required):
+        raise RuntimeError('Unsupported H3 PackedLayout API; update ComfyUI.')
+    result = copy.copy(native)
+    result.position_ids = native.position_ids.clone()
+    source = torch.zeros(native.seq_len, dtype=torch.bool)
+    target = torch.zeros_like(source)
+    ta, tb, _ = next(s for s in native.segments if s[2] == 'video')
+    target[ta:tb] = True
+    # Native packing is text, each reference's optional audio then video, targets.
+    cursor = next(s[1] for s in native.segments if s[2] == 'text')
+    videos = 0
+    for ref in refs:
+        kind = ref['kind']
+        if kind == 'image':
+            cursor += (ref['latent_h']//2)*(ref['latent_w']//2)
+        elif kind == 'audio':
+            cursor += 2*ref['ref_audio_t']
+        elif kind in ('video', 'video_audio'):
+            videos += 1
+            cursor += 2*ref.get('ref_audio_t', 0)
+            n = ref['latent_t']*(ref['latent_h']//2)*(ref['latent_w']//2)
+            if videos == video_index:
+                source[cursor:cursor+n] = True
+                result.position_ids[cursor:cursor+n, 0] += native.position_ids[ta, 0] - native.position_ids[cursor, 0]
+            cursor += n
+        else:
+            raise ValueError('Unknown native H3 reference kind: '+str(kind))
+    if not source.any():
+        raise ValueError(f'Native temporal mode requires <Video {video_index}> as a native video reference. Connect Reference to Video positive conditioning.')
+    st = torch.unique_consecutive(result.position_ids[source, 0])
+    tt = torch.unique_consecutive(result.position_ids[target, 0])
+    if st.shape != tt.shape or not torch.allclose(st, tt, atol=1e-9, rtol=0):
+        raise ValueError('Native temporal guide and output must have identical temporal grids. Use the same frame window, 24 fps and matching H3 frame count (e.g. 107). No automatic motion stretching is applied.')
+    return result, source, target
+
+
+def attention_override(ctx, previous=None, backend=BACKENDS[1], plan=None, log_first=False, sparse_patch=None, dense_backend=None):
+    first=[log_first]
+    def override(original, q, k, v, heads, mask=None, skip_reshape=False, skip_output_reshape=False, **kwargs):
+        # Token refiner and other attention paths retain their original backend.
+        n = q.shape[-2] if skip_reshape else q.shape[1]
+        if n != ctx.times.shape[1] or k.shape[-2 if skip_reshape else 1] != n:
+            if previous:
+                return previous(original, q, k, v, heads, mask=mask, skip_reshape=skip_reshape,
+                                skip_output_reshape=skip_output_reshape, **kwargs)
+            return original(q, k, v, heads, mask=mask, skip_reshape=skip_reshape,
+                            skip_output_reshape=skip_output_reshape, **kwargs)
+        if mask is not None:
+            raise ValueError('Native temporal attention does not support another attention mask override.')
+        if not skip_reshape:
+            q, k, v = [x.view(x.shape[0], x.shape[1], heads, -1).transpose(1, 2) for x in (q,k,v)]
+        chosen = backend
+        reason = None
+        if backend == SOL_BACKEND:
+            options = kwargs.get('transformer_options') or {}
+            reason = sparse_patch.dense_reason(options, n, options.get('block_index'))
+            if reason is None:
+                import comfy_kitchen as ck
+                if q.shape[-1] != 128 or not ck.sol_attn_is_available(q.device):
+                    reason = 'sol-attn requires head dimension 128 and an available CUDA kernel'
+            if reason is not None:
+                sparse_patch.log_once(('temporal_dense', n, reason), f'temporal dense fallback: {reason}')
+                chosen = dense_backend
+        timing=first[0]
+        if timing:
+            if reason is not None:
+                print(f'[BFS H3 native temporal] sol-attn dense fallback: {reason}',flush=True)
+            display_backend=chosen
+            if chosen in (SOL_BACKEND,BACKENDS[2]) and sol.native_kernel.api_for(q) is not None:
+                display_backend='sol-attn one-pass (native Kitchen)' if chosen==SOL_BACKEND else 'comfy kitchen one-pass (native)'
+            print(f'[BFS H3 native temporal] first attention starting: backend={display_backend}, Q={tuple(q.shape)}, dtype={q.dtype}',flush=True)
+            if q.is_cuda: torch.cuda.synchronize(q.device)
+            started=time.perf_counter()
+        if chosen == SOL_BACKEND:
+            if not getattr(plan, '_sol_active_logged', False):
+                passes = 1 if sol.native_kernel.api_for(q) is not None else (plan.frames+1 if ctx.strength and ctx.cap else 1)
+                print(f'[BFS H3 native temporal] sol-attn ACTIVE: tau={sparse_patch.tau}, exact conditioning keys, {passes} attention pipeline pass(es).',flush=True)
+                plan._sol_active_logged = True
+            _, sink_q = sparse_patch.sinks(options, n)
+            out = sol.attention(q,k,v,plan,ctx,tau=sparse_patch.tau,
+                                token_aug=sparse_patch.extra_tokens,sink_q=sink_q)
+        elif chosen == BACKENDS[2]:
+            out = kitchen.attention(q,k,v,plan,ctx)
+        elif chosen == BACKENDS[0]:
+            out = fast.attention(q,k,v,plan)
+        else:
+            out = core.attention(q,k,v,ctx)
+        if timing:
+            if q.is_cuda: torch.cuda.synchronize(q.device)
+            print(f'[BFS H3 native temporal] first attention finished in {time.perf_counter()-started:.3f}s',flush=True)
+            first[0]=False
+        return out if skip_output_reshape else out.transpose(1, 2).reshape(out.shape[0], -1, out.shape[1]*out.shape[3])
+    return override
+
+
+def patch_temporal_model(model, video_index=1, strength=2.0, window=0.2, falloff=0.25, cap=6.0, backend=BACKENDS[0]):
+    if backend not in BACKENDS: raise ValueError("Unknown native temporal attention backend")
+    if backend==BACKENDS[0] and not hasattr(torch.ops.aten, '_scaled_dot_product_flash_attention'):
+        raise RuntimeError("This PyTorch build lacks native FlashAttention with LSE. Update PyTorch or select flex (original).")
+    cfg = core.options(dict(native_temporal_alignment=True, native_temporal_strength=strength,
+                            native_temporal_window_seconds=window, native_temporal_falloff_seconds=falloff,
+                            native_temporal_max_penalty=cap))
+    if isinstance(video_index, bool) or not isinstance(video_index, int) or video_index < 1:
+        raise ValueError('motion_video_index must be a positive integer')
+    if model is None:
+        raise ValueError('Native temporal mode needs the MODEL input. Route this node MODEL output to the sampler/guider.')
+    if model.model_options.get(MARKER):
+        raise ValueError('Native temporal alignment is already installed. Use only one native temporal node per model path.')
+    net = model.get_model_object('diffusion_model')
+    if net.__class__.__name__ != 'MiniMaxH3Model':
+        raise ValueError('Native temporal alignment requires a native ComfyUI MiniMaxH3 model.')
+    opts = model.model_options.get('transformer_options', {})
+    dense_override, sparse_patch = sparse_compat.selection(opts)
+    selected_dense_at_setup=dense_backend_selection(dense_override)
+    sparse_compat.without_owned_blocks(opts, sparse_patch)
+    if backend==BACKENDS[2] or selected_dense_at_setup=='comfy_kitchen_int8' or sparse_patch is not None:
+        sol.native_kernel.prepare_model(model)
+    patched = model.clone()
+    previous = patched.model_options.get('model_function_wrapper')
+    cache = [None, None]
+    logged = [False]
+    plan_cache = [None, None]
+    calls = [0]
+
+    def wrapper(model_function, args):
+        conds = args.get('c', {})
+        payload = conds.get('minimax_payload') or {}
+        native = payload.get('layout')
+        if native is None:
+            raise RuntimeError('Native H3 layout missing. Update ComfyUI and use native AV latent conditioning.')
+        if cache[0] is not native:
+            cache[:] = [native, temporal_layout(native, payload.get('refs', []), payload.get('keyframes'), video_index)]
+        layout, source, target = cache[1]
+        device = args['input'][0].device if isinstance(args['input'], (list, tuple)) else args['input'].device
+        to = dict(conds.get('transformer_options', {}))
+        incoming = to.get('optimized_attention_override')
+        dense_override, sparse_patch = sparse_compat.selection(to)
+        selected_dense = dense_backend_selection(dense_override)
+        active_backend = (BACKENDS[2] if selected_dense == 'comfy_kitchen_int8' else
+                          BACKENDS[0] if selected_dense == 'pytorch' else backend)
+        dense_backend = active_backend
+        if sparse_patch is not None:
+            active_backend = SOL_BACKEND
+        to = sparse_compat.without_owned_blocks(to, sparse_patch)
+        times = layout.position_ids[:, 0].float()[None].to(device)/40.0
+        ctx = core.TemporalContext(times, source[None].to(device), target[None].to(device),
+                                  torch.ones_like(source[None], device=device), strength, window, falloff, cap,
+                                  torch.tensor([strength,window,falloff,cap],device=device,dtype=torch.float32))
+        if plan_cache[0] is not layout:
+            plan_cache[:] = [layout, fast.make_plan(layout.position_ids,source,target,strength,window,falloff,cap)]
+        to['optimized_attention_override'] = attention_override(ctx, previous=incoming, backend=active_backend, plan=plan_cache[1], log_first=not logged[0], sparse_patch=sparse_patch, dense_backend=dense_backend)
+        copied = dict(args, c=dict(conds, minimax_payload=dict(payload, layout=layout), transformer_options=to))
+        if not logged[0]:
+            print(f'[BFS H3 native temporal] {core.VERSION}: <Video {video_index}>, {int(source.sum())} motion rows; temporal RoPE aligned; soft window={window}s strength={strength} cap={cap}; images remain native; Add Guide OFF; backend={active_backend}; packed_rows={layout.seq_len}', flush=True)
+            if sparse_patch is not None:
+                print('[BFS H3 native temporal] sol-attn uses the native one-pass extension when installed; otherwise frame-wise compatibility repeats work. Watch for Kitchen ONE-PASS sol kernel ACTIVE.', flush=True)
+            logged[0] = True
+        calls[0]+=1
+        started=time.perf_counter()
+        result=previous(model_function, copied) if previous else model_function(copied['input'], copied['timestep'], **copied['c'])
+        if calls[0]<=2:
+            if device.type=='cuda':torch.cuda.synchronize(device)
+            print(f'[BFS H3 native temporal] model evaluation {calls[0]} finished in {time.perf_counter()-started:.2f}s (includes weights/offload and all blocks)',flush=True)
+        return result
+
+    patched.set_model_unet_function_wrapper(wrapper)
+    patched.model_options[MARKER] = dict(version=core.VERSION, video_index=video_index, backend=backend, **cfg)
+    return patched
+
+
+class BFSMiniMaxH3NativeTemporal:
+    @classmethod
+    def INPUT_TYPES(cls):
+        return {'required': {'model': ('MODEL',),
+            'motion_video_index': ('INT', {'default':1, 'min':1, 'max':100,
+                'tooltip':'Native <Video N> supplying motion. Picture numbering is independent.'}),
+            'strength': ('FLOAT', {'default':2.0,'min':0.0,'max':20.0,'step':0.1}),
+            'window_seconds': ('FLOAT', {'default':0.2,'min':0.0,'max':10.0,'step':0.01}),
+            'falloff_seconds': ('FLOAT', {'default':0.25,'min':0.01,'max':10.0,'step':0.01}),
+            'max_penalty': ('FLOAT', {'default':6.0,'min':0.0,'max':30.0,'step':0.1})},
+            'optional': {'attention_backend': (BACKENDS, {'default': BACKENDS[0], 'tooltip':'Flash partitions is the default. An official Model Attention Backend Kitchen selection is detected automatically. Kitchen uses an optional one-pass temporal extension when installed, otherwise frame-wise compatibility. Flex is the original implementation.'})}}
+    RETURN_TYPES = ('MODEL',)
+    FUNCTION = 'apply'
+    CATEGORY = 'BFS/MiniMax H3'
+    DESCRIPTION = ('Experimental native_temporal_v1 inference for the matching motion-transfer LoRA. '
+        'Keep the motion video in MiniMax H3 Reference to Video positive conditioning; route this MODEL '
+        'to the guider. No Add Guide or VSA. Guide/output must share a 24fps temporal grid. '
+        'Does not encode video or load the LoRA. Defaults match training.')
+
+    def apply(self, model, motion_video_index=1, strength=2.0, window_seconds=0.2, falloff_seconds=0.25, max_penalty=6.0, attention_backend=BACKENDS[0]):
+        return (patch_temporal_model(model,motion_video_index,strength,window_seconds,falloff_seconds,max_penalty,attention_backend),)
+
+NODE_CLASS_MAPPINGS = {'BFSMiniMaxH3NativeTemporal': BFSMiniMaxH3NativeTemporal}
+NODE_DISPLAY_NAME_MAPPINGS = {'BFSMiniMaxH3NativeTemporal': 'BFS MiniMax H3 Native Temporal Alignment (Experimental)'}
@@ -0,0 +1,122 @@
+"""Native-reference temporal alignment v1. No new learned model weights.
+
+Only source channel 1's VIDEO latent rows are moved onto the target clock.
+Image-reference spatial/temporal positions remain native. Target-to-motion
+attention receives a bounded, soft temporal penalty; all other edges stay dense.
+The CUDA implementation uses FlexAttention, never a quadratic dense bias tensor.
+"""
+from dataclasses import dataclass
+import math
+import torch
+import torch.nn.functional as F
+
+VERSION = 'native_temporal_v1'
+_FLEX = None
+
+def options(kwargs):
+    enabled = kwargs.get('native_temporal_alignment', False)
+    if not isinstance(enabled, bool):raise ValueError('native_temporal_alignment must be boolean')
+    result = dict(enabled=enabled, source_channel=kwargs.get('native_motion_source_channel',1),
+                  strength=kwargs.get('native_temporal_strength',2.0),
+                  window=kwargs.get('native_temporal_window_seconds',0.2),
+                  falloff=kwargs.get('native_temporal_falloff_seconds',0.25),
+                  cap=kwargs.get('native_temporal_max_penalty',6.0))
+    if isinstance(result['source_channel'],bool) or not isinstance(result['source_channel'],int) or result['source_channel']<1:raise ValueError('Invalid native motion source channel')
+    for name in ['strength','window','falloff','cap']:
+        x=result[name]
+        if isinstance(x,bool) or not isinstance(x,(int,float)) or not math.isfinite(x) or x<0 or (name=='falloff' and x==0):raise ValueError('Invalid native temporal '+name)
+    if enabled and (kwargs.get('align_video_refs') or kwargs.get('align_image_refs') or kwargs.get('reference_source_phase') or kwargs.get('reference_rope_layout','native')!='native'):
+        raise ValueError('Native temporal mode requires native references, no AddGuide alignment or source-phase patch')
+    return result
+
+def align_layout(layout, ref_blocks, source_ids, cfg):
+    """Return a sequence-row mask, aligning only the explicit motion video's clock.
+
+    Native video latents remain in ref_blocks and keep their own spatial grid.
+    Reference audio is not temporally biased by this video-only experiment.
+    """
+    mask=torch.zeros(layout.sequence_length,dtype=torch.bool)
+    if not cfg['enabled'] or not ref_blocks:return mask
+    if len(source_ids)!=len(ref_blocks):raise ValueError('Native temporal mode requires exact reference source IDs')
+    cursor=int(layout.text_indices.numel());found=0
+    # target rows are always the final packed rows; condition video indices precede them.
+    target_start=int(layout.audio_indices[-1])+1 if layout.audio_indices.numel() else layout.sequence_length
+    # For zero audio use the count of conditioning video rows to locate the target.
+    target_idx=layout.video_indices[layout.num_condition_video_rows:]
+    target_start=int(target_idx[0]);target_origin=layout.position_ids[target_start,0].clone()
+    for block, source in zip(ref_blocks,source_ids):
+        t,h,w=block[:3];a=block[3] if len(block)>3 else 0
+        cursor+=int(a)*2
+        rows=int(t)*(int(h)//2)*(int(w)//2)
+        if source==cfg['source_channel']:
+            if t<=1:raise ValueError('Motion channel must be a video, not an image')
+            if len(block)>4 and block[4]:raise ValueError('Native motion video was accidentally converted to aligned guide')
+            found+=1;mask[cursor:cursor+rows]=True
+            layout.position_ids=layout.position_ids.clone()
+            layout.position_ids[cursor:cursor+rows,0]+=target_origin-layout.position_ids[cursor,0].clone()
+            # A common temporal extent is required; never silently stretch motion to fit.
+            src_times=torch.unique_consecutive(layout.position_ids[cursor:cursor+rows,0])
+            dst_times=torch.unique_consecutive(layout.position_ids[target_idx,0])
+            if src_times.shape!=dst_times.shape or not torch.allclose(src_times,dst_times,atol=1e-9,rtol=0):raise ValueError('Native motion and target must use identical temporal grids; resample both to matching frame windows')
+        cursor+=rows
+    if found!=1:raise ValueError(f'Expected one motion video in channel {cfg["source_channel"]}, found {found}')
+    assert not mask[target_idx].any()
+    return mask
+
+def pad_motion_masks(layouts, masks):
+    max_text=max(int(x.text_indices.numel()) for x in layouts)
+    total=max_text+layouts[0].sequence_length-int(layouts[0].text_indices.numel())
+    result=torch.zeros(len(layouts),total,dtype=torch.bool)
+    for i,(layout,mask) in enumerate(zip(layouts,masks)):
+        n=int(layout.text_indices.numel());result[i,:n]=mask[:n];result[i,max_text:]=mask[n:]
+    return result
+
+@dataclass(frozen=True)
+class TemporalContext:
+    times: torch.Tensor
+    source: torch.Tensor
+    target: torch.Tensor
+    live: torch.Tensor
+    strength: float
+    window: float
+    falloff: float
+    cap: float
+    policy: torch.Tensor | None = None
+
+def context(position_ids, source_mask, tags, video_indices, target_grid, cfg):
+    if not cfg['enabled'] or source_mask is None or not bool(source_mask.any()):return None
+    if source_mask.shape!=tags.shape:raise ValueError('Motion mask must match packed token rows')
+    target=torch.zeros_like(source_mask);n=math.prod(target_grid)
+    target[:,video_indices[-n:]]=True
+    return TemporalContext(position_ids[:,:,0].float()/40.0,source_mask,target,tags>=0,
+                           float(cfg['strength']),float(cfg['window']),float(cfg['falloff']),float(cfg['cap']),
+                           torch.tensor([cfg['strength'],cfg['window'],cfg['falloff'],cfg['cap']],device=position_ids.device,dtype=torch.float32))
+
+def score_modifier(ctx):
+    # Captured tensors are O(sequence length). No SxS matrix is materialized on CUDA.
+    times,source,target,live=ctx.times,ctx.source,ctx.target,ctx.live
+    policy=ctx.policy if ctx.policy is not None else torch.tensor([ctx.strength,ctx.window,ctx.falloff,ctx.cap],device=times.device,dtype=torch.float32)
+    def modify(score,b,h,q,k):
+        qi=q.clamp(max=times.shape[1]-1);ki=k.clamp(max=times.shape[1]-1)
+        dt=(times[b,qi]-times[b,ki]).abs()
+        penalty=torch.minimum(policy[0]*(torch.relu(dt-policy[1])/policy[2]).square(),policy[3])
+        edited=torch.where(target[b,qi]&source[b,ki],score-penalty,score)
+        return torch.where(live[b,ki],edited,float('-inf'))
+    return modify
+
+def dense_reference(q,k,v,ctx):
+    """Tiny test oracle only; forbidden at production sequence lengths."""
+    if q.shape[-2]>256:raise ValueError('Dense temporal reference is only for tiny tests')
+    delta=(ctx.times[:,:,None]-ctx.times[:,None,:]).abs()
+    penalty=(ctx.strength*(F.relu(delta-ctx.window)/ctx.falloff).square()).clamp(max=ctx.cap)
+    bias=torch.where(ctx.target[:,:,None]&ctx.source[:,None,:],-penalty,0.0)
+    bias=bias.masked_fill(~ctx.live[:,None,:],float('-inf'))
+    return F.scaled_dot_product_attention(q,k,v,attn_mask=bias[:,None].to(q.dtype))
+
+def attention(q,k,v,ctx):
+    global _FLEX
+    if q.device.type!='cuda':return dense_reference(q,k,v,ctx)
+    if _FLEX is None:
+        from torch.nn.attention.flex_attention import flex_attention
+        _FLEX=torch.compile(flex_attention,dynamic=True,fullgraph=True)
+    return _FLEX(q,k,v,score_mod=score_modifier(ctx))
@@ -0,0 +1,60 @@
+"""Recognize only the official ComfyUI sol-attn wrappers and owned block hooks."""
+import inspect
+
+
+def official_sparse_module(obj):
+    name = getattr(obj, '__module__', '')
+    # ComfyUI's file loader uses the extensionless absolute path as the
+    # module name for .py extras, rather than a dotted import name.
+    leaf = name.replace('\\', '/').rsplit('/', 1)[-1]
+    return leaf == 'nodes_sparse_attention' or leaf.endswith('.nodes_sparse_attention')
+
+
+def unwrap_sol(override):
+    if override is None or not official_sparse_module(override):
+        return override, None
+    if not getattr(override, '__qualname__', '').endswith('make_attention_override.<locals>.override'):
+        raise ValueError('Unsupported sparse attention wrapper for native temporal alignment.')
+    cells = inspect.getclosurevars(override).nonlocals
+    patch = cells.get('patch')
+    if patch is None or type(patch).__name__ != 'SparseAttnPatch' or not official_sparse_module(type(patch)):
+        raise ValueError('Unable to identify the official sparse attention patch.')
+    if patch.vsa or patch.topk_ratio != 0:
+        raise ValueError('Native temporal alignment supports only sol-attn; SLA and VSA remain incompatible.')
+    parent = cells.get('previous')
+    if parent is not None and official_sparse_module(parent):
+        raise ValueError('Use only one Model Sparse Attention node with native temporal alignment.')
+    return parent, patch
+
+
+def without_owned_blocks(options, patch):
+    blocks = options.get('patches_replace', {}).get('dit', {})
+    if not blocks:
+        return options
+    if patch is None:
+        raise ValueError('Remove VSA and other attention/block replacement patches before native temporal alignment.')
+    for callback in blocks.values():
+        if (not official_sparse_module(callback) or
+                not getattr(callback, '__qualname__', '').endswith('make_h3_block_patch.<locals>.block_patch') or
+                inspect.getclosurevars(callback).nonlocals.get('patch') is not patch):
+            raise ValueError('Native temporal alignment conflicts with another attention/block replacement patch.')
+    # A per-evaluation copy bypasses only this node's producer hooks. That native
+    # producer has no temporal Q/K bias; leaving it installed would bypass BFS.
+    return dict(options, patches_replace={**options['patches_replace'], 'dit': {}})
+
+
+def selection(options):
+    """Recover sparse state even when a later dense node replaced its override."""
+    dense, patch = unwrap_sol(options.get('optimized_attention_override'))
+    if patch is None:
+        for callback in options.get('patches_replace', {}).get('dit', {}).values():
+            if (official_sparse_module(callback) and
+                    getattr(callback, '__qualname__', '').endswith('make_h3_block_patch.<locals>.block_patch')):
+                candidate = inspect.getclosurevars(callback).nonlocals.get('patch')
+                if candidate is not None and type(candidate).__name__ == 'SparseAttnPatch' and official_sparse_module(type(candidate)):
+                    if candidate.vsa or candidate.topk_ratio != 0:
+                        raise ValueError('Native temporal alignment supports only sol-attn; SLA and VSA remain incompatible.')
+                    patch = candidate
+                    break
+    without_owned_blocks(options, patch)
+    return dense, patch
@@ -0,0 +1,152 @@
+"""Pinned, node-local bootstrap for the optional native temporal extension.
+
+Only fixed trusted-release bytes are loaded, after embedded SHA256 checks.
+No pip, site-packages writes, main Kitchen replacement, or sampling-time build.
+"""
+import ctypes
+import hashlib
+import importlib.util
+import os
+from pathlib import Path
+import platform
+import sys
+import tempfile
+import threading
+import time
+import urllib.request
+
+SOURCE_COMMIT = '9953b6caec7a5cb3e2486dd97a365f7af44eedad'
+RAW = f'https://raw.githubusercontent.com/alisson-anjos/comfy-kitchen/{SOURCE_COMMIT}'
+RELEASE = 'https://github.com/alisson-anjos/comfy-kitchen/releases/download/h3-native-temporal-kernel-v1'
+BINARY_HASH = 'ad87534bfb3ece2af84c201e326b2b405f0108f34efb36937c09967c14f0329d'
+ASSETS = (
+    ('temporal_attention.py', RAW+'/comfy_kitchen/temporal_attention.py', '0151e8b5b5886c9e8b4608cbc179e9dd6f934170cf45b8d27e14801f3c4828a1', 256*1024),
+    ('backends/cuda/native_temporal/libck_temporal_sm120.so', RELEASE+'/libck_temporal_sm120.so', BINARY_HASH, 16*1024*1024),
+    ('LICENSE', RAW+'/LICENSE', 'cd1c9ea1573c9047e9b5a3676ecc1c8f755e56f249ac1ebd8b5ceda7899037da', 64*1024),
+    ('NOTICE', RAW+'/NOTICE', '35c43127ad3acbd6bc94ff63c56684a7c26eedf07795e596c8105a0476dae2ea', 64*1024),
+)
+_LOCK = threading.Lock()
+_READY = {}
+_FAILED = set()
+
+
+def cache_root():
+    explicit=os.environ.get('BFS_H3_TEMPORAL_CACHE_DIR')
+    if explicit:
+        base=Path(explicit).expanduser()
+    else:
+        try:
+            import folder_paths
+            base=Path(folder_paths.get_user_directory())/'bfs'/'h3_temporal_kernels'
+        except (ImportError,AttributeError):
+            base=Path.home()/'.cache'/'bfsnodes'/'h3_temporal_kernels'
+    return base/('v1-linux-x86_64-sm120-'+BINARY_HASH[:12])
+
+
+def compatible(device):
+    if os.environ.get('BFS_H3_TEMPORAL_AUTO_INSTALL','1').lower() in ('0','false','off'):
+        return False,'automatic setup disabled'
+    if platform.system()!='Linux' or platform.machine() not in ('x86_64','AMD64'):
+        return False,'automatic prebuilt supports Linux x86_64 only'
+    import torch
+    if getattr(torch.version,'hip',None) or not torch.cuda.is_available() or torch.cuda.get_device_capability(device)!=(12,0):
+        return False,'automatic prebuilt supports NVIDIA SM120 only'
+    # Check the actual driver, not torch.version.cuda: the sidecar uses its own
+    # static CUDA runtime and the same device/stream primary context.
+    driver=ctypes.CDLL('libcuda.so.1');version=ctypes.c_int()
+    if driver.cuDriverGetVersion(ctypes.byref(version))!=0 or version.value<13000:
+        return False,'the prebuilt requires a driver supporting CUDA 13'
+    import comfy_kitchen
+    if not comfy_kitchen.int8_attention_is_available(device):
+        return False,'Kitchen native INT8 attention unavailable'
+    from comfy_kitchen.sage_attention import prequantize_int8_attention
+    if not callable(prequantize_int8_attention):
+        return False,'Kitchen prequantization API unavailable'
+    return True,None
+
+
+def digest(path):
+    h=hashlib.sha256()
+    with path.open('rb') as f:
+        for block in iter(lambda:f.read(1024*1024),b''):h.update(block)
+    return h.hexdigest()
+
+
+def download(path,url,expected,limit):
+    if path.is_file() and digest(path)==expected:
+        return
+    path.parent.mkdir(parents=True,exist_ok=True)
+    fd,name=tempfile.mkstemp(prefix=path.name+'.',suffix='.partial',dir=path.parent)
+    temp=Path(name)
+    try:
+        request=urllib.request.Request(url,headers={'User-Agent':'BFSNodes-H3-Temporal/1'})
+        h=hashlib.sha256();total=0
+        with os.fdopen(fd,'wb') as out,urllib.request.urlopen(request,timeout=20) as response:
+            while True:
+                block=response.read(256*1024)
+                if not block:break
+                total+=len(block)
+                if total>limit:raise RuntimeError('Temporal asset exceeds the pinned size limit')
+                h.update(block);out.write(block)
+        if h.hexdigest()!=expected:
+            raise RuntimeError('Temporal asset checksum mismatch; downloaded code was not loaded')
+        os.replace(temp,path)
+    finally:
+        if temp.exists():temp.unlink()
+
+
+def provision(root):
+    import fcntl
+    root.mkdir(parents=True,exist_ok=True)
+    with (root/'.install.lock').open('a+b') as lock:
+        deadline=time.monotonic()+60
+        while True:
+            try:
+                fcntl.flock(lock,fcntl.LOCK_EX|fcntl.LOCK_NB);break
+            except BlockingIOError:
+                if time.monotonic()>deadline:raise RuntimeError('Timed out waiting for temporal setup lock')
+                time.sleep(.1)
+        missing=any(not (root/rel).is_file() or digest(root/rel)!=sha for rel,_,sha,_ in ASSETS)
+        if missing:
+            print('[BFS H3 native temporal] First-use setup: downloading the verified one-pass extension (~3.3 MB). No compilation or pip install.',flush=True)
+        for rel,url,sha,limit in ASSETS:
+            download(root/rel,url,sha,limit)
+        # Verify the native binary before executing the Python entry point too.
+        binary=root/ASSETS[1][0];lib=ctypes.CDLL(str(binary))
+        lib.ck_temporal_abi_version.restype=ctypes.c_int;lib.ck_temporal_arch.restype=ctypes.c_int
+        if lib.ck_temporal_abi_version()!=1 or lib.ck_temporal_arch()!=120:
+            raise RuntimeError('Temporal prebuilt ABI/architecture mismatch')
+        name='_bfs_ck_temporal_v1_sm120_'+ASSETS[0][2][:12]+'_'+hashlib.sha256(str(root.resolve()).encode()).hexdigest()[:12]
+        if name in sys.modules:
+            return sys.modules[name]
+        spec=importlib.util.spec_from_file_location(name,root/'temporal_attention.py')
+        module=importlib.util.module_from_spec(spec);sys.modules[name]=module
+        try:spec.loader.exec_module(module)
+        except BaseException:
+            sys.modules.pop(name,None);raise
+        if getattr(module,'VERSION',None)!='h3_native_temporal_kernel_v1':
+            sys.modules.pop(name,None);raise RuntimeError('Temporal API version mismatch')
+        print(f'[BFS H3 native temporal] Verified one-pass extension ready: {root}',flush=True)
+        return module
+
+
+def ensure(device):
+    """At most one automatic setup attempt per process/cache location."""
+    key=(str(cache_root()),str(device))
+    with _LOCK:
+        if key in _READY:return _READY[key]
+        if key in _FAILED:return None
+        try:
+            ok,reason=compatible(device)
+            if not ok:
+                _FAILED.add(key)
+                print(f'[BFS H3 native temporal] Automatic native setup skipped: {reason}; retaining the existing backend.',flush=True)
+                return None
+            module=provision(Path(key[0]))
+            if not module.is_available(device):raise RuntimeError('Verified native extension is unavailable for this device')
+            _READY[key]=module
+            return module
+        except Exception as exc:
+            _FAILED.add(key)
+            print(f'[BFS H3 native temporal] Automatic native setup unavailable: {exc}. Retaining the existing backend. Restart ComfyUI to retry, or install the extension manually.',flush=True)
+            return None
@@ -0,0 +1,102 @@
+"""Exact bounded temporal bias through FlashAttention partitions; inference only.
+
+The guide's weights are exp(-cap) globally plus positive local corrections
+exp(-penalty)-exp(-cap). Other keys have weight 1. Merge partitions by logsumexp.
+No compiled score modifier, dense score matrix, or subtraction of attention sums.
+"""
+from dataclasses import dataclass
+import math
+import torch
+
+
+@dataclass
+class Plan:
+    source_start: int
+    source_stop: int
+    target_start: int
+    target_stop: int
+    source_frame_rows: int
+    target_frame_rows: int
+    frames: int
+    cap: float
+    corrections: list
+    frame_times: tuple = ()
+
+
+def make_plan(positions, source, target, strength, window, falloff, cap):
+    si=torch.where(source)[0];ti=torch.where(target)[0]
+    sa,sb=int(si[0]),int(si[-1])+1;ta,tb=int(ti[0]),int(ti[-1])+1
+    if si.numel()!=sb-sa or ti.numel()!=tb-ta:
+        raise ValueError('Fast temporal attention requires contiguous source and target video rows')
+    st,sc=torch.unique_consecutive(positions[sa:sb,0],return_counts=True)
+    tt,tc=torch.unique_consecutive(positions[ta:tb,0],return_counts=True)
+    if not torch.equal(sc,sc[:1].expand_as(sc)) or not torch.equal(tc,tc[:1].expand_as(tc)):
+        raise ValueError('Fast temporal attention requires a fixed spatial grid per video')
+    if st.shape!=tt.shape or not torch.allclose(st,tt,rtol=0,atol=1e-9):
+        raise ValueError('Fast temporal attention requires matching temporal grids')
+    frames=st.numel();corrections=[]
+    if strength>0 and cap>0:
+        times=st.double()/40
+        for offset in range(1-frames,frames):
+            lo=max(0,-offset);hi=min(frames,frames-offset)
+            dt=(times[lo:hi]-times[lo+offset:hi+offset]).abs()
+            penalty=(strength*(torch.relu(dt-window)/falloff).square()).clamp(max=cap)
+            # Stable log(exp(-penalty)-exp(-cap)); zero correction becomes -inf.
+            logs=-penalty+torch.log(-torch.expm1(penalty-cap))
+            if torch.isfinite(logs).any():corrections.append((offset,lo,hi,logs.float()))
+    return Plan(sa,sb,ta,tb,int(sc[0]),int(tc[0]),frames,cap if strength>0 else 0.,corrections,tuple((st.float()/40).tolist()))
+
+
+def flash_with_lse(q,k,v):
+    # PyTorch's native FlashAttention primitive returns natural-log normalizers.
+    if q.device.type!='cuda' or q.dtype not in (torch.float16,torch.bfloat16):
+        raise RuntimeError('Fast temporal attention requires CUDA FP16/BF16. Choose flex backend for other configurations.')
+    result=torch.ops.aten._scaled_dot_product_flash_attention.default(q,k,v,0.0,False,False)
+    return result[0],result[1]
+
+
+def merge(a,la,b,lb):
+    """Stable positive weighted merge. Outputs retain model dtype; LSE stays FP32."""
+    total=torch.logaddexp(la,lb)
+    result=a.float()*torch.exp(la-total)[...,None]+b.float()*torch.exp(lb-total)[...,None]
+    return result.to(a.dtype),total
+
+
+def attention(q,k,v,plan,flash=flash_with_lse,frame_chunk=8):
+    if q.shape[0]!=1 or q.shape[2]!=k.shape[2] or q.shape!=v.shape:
+        raise ValueError('Fast native temporal attention currently requires one packed self-attention sequence')
+    if plan.cap==0:
+        return flash(q,k,v)[0]
+    out=torch.empty_like(q)
+    sa,sb,ta,tb=plan.source_start,plan.source_stop,plan.target_start,plan.target_stop
+    # Queries outside the target retain ordinary attention, including token refs/audio.
+    for lo,hi in ((0,ta),(tb,q.shape[2])):
+        if hi>lo:out[:,:,lo:hi]=flash(q[:,:,lo:hi],k,v)[0]
+    heads,dim=q.shape[1],q.shape[-1]
+    qframes=q[:,:,ta:tb].reshape(1,heads,plan.frames,plan.target_frame_rows,dim)[0].permute(1,0,2,3)
+    kframes=k[:,:,sa:sb].reshape(1,heads,plan.frames,plan.source_frame_rows,dim)[0].permute(1,0,2,3)
+    vframes=v[:,:,sa:sb].reshape(1,heads,plan.frames,plan.source_frame_rows,dim)[0].permute(1,0,2,3)
+    if getattr(plan, '_correction_device', None) != q.device:
+        plan._device_corrections=[(off,lo,hi,logs.to(device=q.device)) for off,lo,hi,logs in plan.corrections]
+        plan._correction_device=q.device
+    corrections=plan._device_corrections
+    for first in range(0,plan.frames,frame_chunk):
+        last=min(plan.frames,first+frame_chunk)
+        start=ta+first*plan.target_frame_rows;stop=ta+last*plan.target_frame_rows
+        query=q[:,:,start:stop]
+        # Positive baseline: all motion keys downweighted by exp(-cap).
+        acc,lse=flash(query,k[:,:,sa:sb],v[:,:,sa:sb]);lse=lse-plan.cap
+        for lo,hi in ((0,sa),(sb,k.shape[2])):
+            if hi>lo:
+                part,pl=flash(query,k[:,:,lo:hi],v[:,:,lo:hi]);acc,lse=merge(acc,lse,part,pl)
+        acc=acc.reshape(1,heads,last-first,plan.target_frame_rows,dim)[0].permute(1,0,2,3)
+        lse=lse.reshape(1,heads,last-first,plan.target_frame_rows)[0].permute(1,0,2)
+        for off,lo,hi,logs in corrections:
+            a=max(first,lo);b=min(last,hi)
+            if b<=a:continue
+            part,pl=flash(qframes[a:b],kframes[a+off:b+off],vframes[a+off:b+off])
+            pl=pl+logs[a-lo:b-lo,None,None]
+            merged,ml=merge(acc[a-first:b-first],lse[a-first:b-first],part,pl)
+            acc[a-first:b-first]=merged;lse[a-first:b-first]=ml
+        out[:,:,start:stop]=acc.permute(1,0,2,3).reshape(1,heads,stop-start,dim)
+    return out
@@ -0,0 +1,57 @@
+"""Native Kitchen extension: existing installation or verified first-use cache."""
+import importlib
+try:
+    from . import minimax_h3_temporal_bootstrap as bootstrap
+except ImportError:
+    import minimax_h3_temporal_bootstrap as bootstrap
+
+
+def api_for(q):
+    if q.device.type != 'cuda':
+        return None
+    try:
+        api = importlib.import_module('comfy_kitchen.temporal_attention')
+    except ImportError:
+        return bootstrap.ensure(q.device)
+    if getattr(api, 'VERSION', None) != 'h3_native_temporal_kernel_v1':
+        raise RuntimeError('Unsupported Comfy Kitchen temporal extension version; update the temporal overlay.')
+    return api if api.is_available(q.device) else bootstrap.ensure(q.device)
+
+
+def policy_for(api, plan, ctx):
+    key=(api.VERSION,ctx.strength,ctx.window,ctx.falloff,ctx.cap)
+    if getattr(plan,'_native_temporal_policy_key',None)!=key:
+        times = getattr(plan, 'frame_times', ())
+        if not times:
+            times = tuple(ctx.times[0, plan.target_start:plan.target_stop:plan.target_frame_rows].detach().cpu().tolist())
+        plan._native_temporal_policy = api.TemporalPolicy(
+            plan.source_start, plan.source_stop, plan.target_start, plan.target_stop,
+            plan.source_frame_rows, plan.target_frame_rows, tuple(times),
+            ctx.strength, ctx.window, ctx.falloff, ctx.cap)
+        plan._native_temporal_policy_key=key
+    return plan._native_temporal_policy
+
+
+def run(kind, q, k, v, plan, ctx, **kwargs):
+    api = api_for(q)
+    if api is None:
+        return None
+    policy = policy_for(api, plan, ctx)
+    if not getattr(plan, '_native_'+kind+'_logged', False):
+        print(f'[BFS H3 native temporal] Kitchen ONE-PASS {kind} kernel ACTIVE; temporal bias fused; no per-frame attention loop.', flush=True)
+        setattr(plan, '_native_'+kind+'_logged', True)
+    dtype=q.dtype
+    if str(dtype)=='torch.float32':
+        import torch
+        q,k,v=[t.to(torch.bfloat16) for t in (q,k,v)]
+    fn = api.int8_attention if kind == 'dense' else api.sol_attn
+    return fn(q,k,v,policy,**kwargs).to(dtype)
+
+
+def prepare_model(model):
+    """Prepare a selected native backend during node execution, before sampling."""
+    device=getattr(model,'load_device',None)
+    if getattr(device,'type',None)=='cuda':
+        from types import SimpleNamespace
+        return api_for(SimpleNamespace(device=device))
+    return None
@@ -0,0 +1,58 @@
+"""Prefer native one-pass Kitchen kernels, with a frame-wise fallback.
+
+The fallback avoids partition LSE.
+
+Each target frame shares a key bias across its spatial queries. The compact
+bias is O(frames * sequence), never an expanded sequence-by-sequence mask.
+INT8 quantization changes numerical results; GPU performance needs measurement.
+"""
+import inspect
+import torch
+try:
+    from . import minimax_h3_temporal_kernel as native_kernel
+except ImportError:
+    import minimax_h3_temporal_kernel as native_kernel
+
+
+def kitchen_function():
+    try:
+        import comfy_kitchen
+    except ImportError as exc:
+        raise RuntimeError('Comfy Kitchen temporal attention requires comfy-kitchen with masked INT8 attention.') from exc
+    fn = getattr(comfy_kitchen, 'int8_attention', None)
+    if fn is None or 'attn_mask' not in inspect.signature(fn).parameters:
+        raise RuntimeError('Update comfy-kitchen: this temporal backend requires int8_attention(attn_mask=...).')
+    return fn
+
+
+def attention(q, k, v, plan, ctx, kernel=None):
+    if q.shape[0] != 1 or q.shape != k.shape or q.shape != v.shape:
+        raise ValueError('Kitchen temporal attention requires one packed self-attention sequence')
+    if kernel is None:
+        native = native_kernel.run('dense',q,k,v,plan,ctx)
+        if native is not None:
+            return native
+    kernel = kitchen_function() if kernel is None else kernel
+    if ctx.strength == 0 or ctx.cap == 0:
+        return kernel(q, k, v)
+    sa, sb, ta, tb = plan.source_start, plan.source_stop, plan.target_start, plan.target_stop
+    key = (q.device, q.shape[2], float(ctx.strength), float(ctx.window), float(ctx.falloff), float(ctx.cap))
+    if getattr(plan, '_kitchen_key', None) != key:
+        frame_times = ctx.times[0, ta:tb:plan.target_frame_rows]
+        source_times = ctx.times[0, sa:sb]
+        dt = (frame_times[:, None] - source_times[None, :]).abs()
+        penalty = (ctx.strength * (torch.relu(dt-ctx.window)/ctx.falloff).square()).clamp(max=ctx.cap)
+        biases = torch.zeros((plan.frames, q.shape[2]), device=q.device, dtype=torch.float32)
+        biases[:, sa:sb] = -penalty
+        plan._kitchen_biases, plan._kitchen_key = biases, key
+    out = torch.empty_like(q)
+    for lo, hi in ((0, ta), (tb, q.shape[2])):
+        if hi > lo:
+            out[:, :, lo:hi] = kernel(q[:, :, lo:hi], k, v)
+    for frame in range(plan.frames):
+        lo = ta + frame * plan.target_frame_rows
+        hi = lo + plan.target_frame_rows
+        # Broadcast only: Kitchen expands this key bias with zero query stride.
+        mask = plan._kitchen_biases[frame].view(1, 1, 1, -1)
+        out[:, :, lo:hi] = kernel(q[:, :, lo:hi], k, v, attn_mask=mask)
+    return out
@@ -0,0 +1,62 @@
+"""Prefer the optional one-pass temporal Sol kernel; preserve legacy fallback.
+
+Without that extension, the public kernel accepts equal-length Q/K/V and a key-only bias. Therefore
+this compatibility path runs one unbiased pass and one full-sequence pass per
+latent target frame, retaining only that frame's query rows. It is deliberately
+not advertised as a fast one-pass temporal sparse kernel.
+"""
+import inspect
+import torch
+try:
+    from . import minimax_h3_temporal_kernel as native_kernel
+except ImportError:
+    import minimax_h3_temporal_kernel as native_kernel
+
+
+def sol_function():
+    try:
+        import comfy_kitchen as ck
+    except ImportError as exc:
+        raise RuntimeError('Temporal sol-attn requires Comfy Kitchen.') from exc
+    fn = getattr(ck, 'sol_attn', None)
+    if fn is None or 'key_bias' not in inspect.signature(fn).parameters:
+        raise RuntimeError('Update comfy-kitchen: temporal sol-attn requires sol_attn(key_bias=...).')
+    return fn
+
+
+def attention(q, k, v, plan, ctx, *, tau, token_aug=0, sink_q=(0, 0), kernel=None):
+    if q.shape[0] != 1 or q.shape != k.shape or q.shape != v.shape or q.shape[-1] != 128:
+        raise ValueError('Temporal sol-attn requires one packed self-attention sequence with head dimension 128.')
+    if plan.source_stop > plan.target_start:
+        raise ValueError('Temporal sol-attn requires native motion references before the target video.')
+    if kernel is None:
+        native = native_kernel.run('sol',q,k,v,plan,ctx,tau=tau,token_aug=token_aug,sink_q=sink_q)
+        if native is not None:
+            return native
+    fn = sol_function() if kernel is None else kernel
+    # Sol's key bias is applied only in the exact branch: all conditioning keys,
+    # including the selected motion video, must be forced exact regardless of
+    # the ordinary sparse node's sink_conditioning setting.
+    sink_blocks = [0, (plan.target_start+63)//64]
+    common = dict(tau=float(tau), sink_blocks=sink_blocks, topk_ratio=0., tail=True, token_aug=int(token_aug))
+    qs, ks, vs = [x.transpose(1, 2) for x in (q, k, v)]
+    if kernel is None and q.dtype == torch.float32:
+        qs, ks, vs = [x.to(torch.bfloat16) for x in (qs, ks, vs)]
+    out = fn(qs, ks, vs, sink_q=list(sink_q), **common).transpose(1, 2).clone()
+    if ctx.strength == 0 or ctx.cap == 0:
+        return out.to(q.dtype)
+    cache_key = (q.device, q.shape[2], float(ctx.strength), float(ctx.window), float(ctx.falloff), float(ctx.cap))
+    if getattr(plan, '_sol_bias_key', None) != cache_key:
+        ft = ctx.times[0, plan.target_start:plan.target_stop:plan.target_frame_rows]
+        st = ctx.times[0, plan.source_start:plan.source_stop]
+        penalty = (ctx.strength*(torch.relu((ft[:, None]-st[None, :]).abs()-ctx.window)/ctx.falloff).square()).clamp(max=ctx.cap)
+        bias = torch.zeros((plan.frames, q.shape[2]), device=q.device, dtype=torch.float32)
+        bias[:, plan.source_start:plan.source_stop] = -penalty
+        plan._sol_bias, plan._sol_bias_key = bias, cache_key
+    for frame in range(plan.frames):
+        lo = plan.target_start+frame*plan.target_frame_rows
+        hi = lo+plan.target_frame_rows
+        # Outputs for other frames are discarded: their temporal bias differs.
+        result = fn(qs, ks, vs, key_bias=plan._sol_bias[frame], sink_q=[0, 0], **common)
+        out[:, :, lo:hi] = result[:, lo:hi].transpose(1, 2)
+    return out.to(q.dtype)
@@ -1,7 +1,7 @@
 [project]
 name = "bfsnodes"
-description = "Custom ComfyUI nodes for reference-guided video: BFS Sampler (guide-driven IC-LoRAs, auto crop, mask inpainting, temporal chunking), LTX Multiple Controls / Identity Transfer / Edit Anything, Head-Swap and Anime2Real conditioning, MiniMax-H3 latent guides, RoPE layouts and loaders, LoRA Surgery, and Shot Planner / Shot Loop (tabbed panel): split long videos into shots at camera cuts, face-tracked cast, SAM 3 mask per shot with full frame, paste, mask, crop and crop + mask generation modes, optional translucent Color Guide for one or two manually selected regions with cast identity color reuse, optional Qwen3-VL to suggest settings, describe references ({details}) and the person to replace ({target}), continuity between shots, H3 conditioning with an optional duet and prompt writer, join with the original timing, audio and a side-by-side comparison. H3 Duet: pin a source clip beside the video, training-free."
-version = "1.97.0"
+description = "Custom ComfyUI nodes for reference-guided video: BFS Sampler (guide-driven IC-LoRAs, auto crop, mask inpainting, temporal chunking), LTX Multiple Controls / Identity Transfer / Edit Anything, Head-Swap and Anime2Real conditioning, MiniMax-H3 latent guides, RoPE layouts and loaders, LoRA Surgery, and Shot Planner / Shot Loop (tabbed panel): split long videos into shots at camera cuts, face-tracked cast, SAM 3 mask per shot with full frame, paste, mask, crop and crop + mask generation modes, optional translucent Colored Mark overlay for manually selected regions, optional Qwen3-VL to suggest settings, describe references ({details}) and the person to replace ({target}), continuity between shots, H3 conditioning with an optional duet and prompt writer, join with the original timing, audio and a side-by-side comparison. H3 Duet: pin a source clip beside the video, training-free."
+version = "1.115.18"
 license = {file = "LICENSE"}
 dependencies = [
    "torch",
@@ -0,0 +1,165 @@
+# Extracted from official ComfyUI bef11fc nodes_sparse_attention.py for loader/closure compatibility tests.
+# SPDX-License-Identifier: GPL-3.0-only
+class SparseAttnPatch:
+    """Options plus runtime state for one patched model; an ON_CLEANUP callback
+    resets the state when the sampling run ends."""
+
+    def __init__(self, tau, topk_ratio, vsa, sigma_start, sigma_end, min_tokens, dense_blocks, sink_conditioning, extra_tokens, verbose):
+        self.tau = tau
+        self.topk_ratio = topk_ratio
+        self.extra_tokens = extra_tokens
+        self.vsa = vsa
+        self.sigma_start = sigma_start
+        self.sigma_end = sigma_end
+        self.min_tokens = min_tokens
+        self.dense_blocks = dense_blocks
+        self.sink_conditioning = sink_conditioning
+        self.verbose = verbose
+        self.installed = set()
+        self.reset()
+
+    def reset(self):
+        self.pooled = {}
+        self.vsa_plans = {}
+        self.vsa_rope = None
+        self._logged = set()
+
+    def log_once(self, key, message):
+        if self.verbose and key not in self._logged:
+            self._logged.add(key)
+            logging.info(f'BlockSparseAttention: {message}')
+
+    def dense_reason(self, transformer_options, tokens, block_index):
+        """Why this call stays dense regardless of its tensors, or None."""
+        sigmas = transformer_options.get('sigmas')
+        if sigmas is not None:
+            sigma = float(sigmas[0])
+            if sigma > self.sigma_start or sigma < self.sigma_end:
+                return f'sigma {sigma:.3g} outside the start/end window'
+        if tokens < self.min_tokens:
+            return f'{tokens} tokens < min_tokens {self.min_tokens}'
+        if self.dense_blocks:
+            if block_index is None:
+                self.log_once('no_block_index', 'this model does not report block indices; dense_blocks ignored')
+            elif block_index in self.dense_blocks:
+                return f'block {block_index} in dense_blocks'
+        return None
+
+    def sinks(self, transformer_options, tokens):
+        """MiniMax-H3 conditioning rows as (exact-KV blocks, dense-query blocks):
+        the packed prefix stays exact for every query, and optionally the
+        target-audio query rows run dense."""
+        layout = transformer_options.get('minimax_h3_layout')
+        if self.sink_conditioning == 'off' or layout is None or layout.seq_len != tokens:
+            return ((0, 0), (0, 0))
+        video = next(((a, b) for a, b, kind in layout.segments if kind == 'video'), None)
+        if video is None or video[0] <= 0:
+            return ((0, 0), (0, 0))
+        blocks = (0, (video[0] + BLOCK_SIZE - 1) // BLOCK_SIZE)
+        if self.sink_conditioning != 'exact_kv_and_rows':
+            return (blocks, (0, 0))
+        audio = next(((a, b) for a, b, kind in layout.segments if kind == 'audio'), None)
+        if audio is None:
+            return (blocks, blocks)
+        return (blocks, (audio[0] // BLOCK_SIZE, blocks[1]))
+
+    def vsa_plan(self, layout, device):
+        """Padded tile order: prefix segments in their own zero-padded 64-row
+        tiles, video in 4x4x4 cubes. `src` maps padded row -> source row (-1 =
+        pad), `inv` the reverse."""
+        key = (tuple(layout.signature), tuple(layout.segments), str(device))
+        plan = self.vsa_plans.get(key)
+        if plan is not None:
+            return plan
+        _text_len, latent_t, latent_h, latent_w, _audio_t = layout.signature
+        grid = (int(latent_t), int(latent_h) // 2, int(latent_w) // 2)
+        tiles, n_prefix = ([], 0)
+        for a, b, kind in layout.segments:
+            n = b - a
+            if kind != 'video':
+                m = (n + BLOCK_SIZE - 1) // BLOCK_SIZE
+                seg = torch.full((m * BLOCK_SIZE,), -1, dtype=torch.int64, device=device)
+                seg[:n] = torch.arange(a, b, device=device)
+                tiles.append(seg.view(m, BLOCK_SIZE))
+                n_prefix += m
+                continue
+            if grid[0] * grid[1] * grid[2] != n:
+                raise RuntimeError(f'VSA: video segment of {n} rows does not match the latent grid {grid}')
+            ct, ch, cw = VSA_CUBE
+            pt, ph, pw = ((g + c - 1) // c * c for g, c in zip(grid, VSA_CUBE))
+            padded = torch.full((pt, ph, pw), -1, dtype=torch.int64, device=device)
+            padded[:grid[0], :grid[1], :grid[2]] = torch.arange(a, b, device=device).view(*grid)
+            cubes = padded.view(pt // ct, ct, ph // ch, ch, pw // cw, cw).permute(0, 2, 4, 1, 3, 5).reshape(-1, BLOCK_SIZE)
+            order = torch.argsort((cubes < 0).to(torch.int8), dim=1, stable=True)
+            tiles.append(torch.gather(cubes, 1, order))
+        tiles = torch.cat(tiles)
+        src = tiles.reshape(-1)
+        live = src >= 0
+        inv = torch.empty(layout.seq_len, dtype=torch.int64, device=device)
+        inv[src[live]] = torch.nonzero(live).flatten()
+        plan = {'n': int(src.numel()), 'n_prefix': n_prefix, 'src': src, 'inv': inv, 'block_len': (tiles >= 0).sum(1).to(torch.int32)}
+        while len(self.vsa_plans) >= VSA_PLAN_CACHE:
+            del self.vsa_plans[next(iter(self.vsa_plans))]
+        self.vsa_plans[key] = plan
+        return plan
+
+    def vsa_rope_freqs(self, rope_freqs, plan):
+        hit = self.vsa_rope
+        if hit is not None and hit[0]() is rope_freqs and (hit[1] is plan):
+            return hit[2]
+        padded = rope_freqs.new_zeros((1, plan['n']) + tuple(rope_freqs.shape[2:]))
+        padded[0, plan['inv']] = rope_freqs[0]
+        self.vsa_rope = (weakref.ref(rope_freqs), plan, padded)
+        return padded
+
+def make_attention_override(patch: SparseAttnPatch, previous):
+    """Attention override; declined calls run ``previous`` (the override that was
+    on the hook before this one) or ``func``. Dense-only in VSA mode: a
+    VSA-trained model must never see plain block-sparse attention."""
+
+    def override(func, q, k, v, heads, mask=None, attn_precision=None, skip_reshape=False, skip_output_reshape=False, **kwargs):
+        transformer_options = kwargs.get('transformer_options') or {}
+
+        def dense():
+            args = (q, k, v, heads)
+            kw = dict(mask=mask, attn_precision=attn_precision, skip_reshape=skip_reshape, skip_output_reshape=skip_output_reshape, **kwargs)
+            return func(*args, **kw) if previous is None else previous(func, *args, **kw)
+        if mask is not None or patch.vsa:
+            return dense()
+        tokens = q.shape[2] if skip_reshape else q.shape[1]
+        reason = patch.dense_reason(transformer_options, tokens, transformer_options.get('block_index'))
+        if reason is not None:
+            patch.log_once(('dense', tokens, reason), f'dense ({tokens} tokens): {reason}')
+            return dense()
+        if skip_reshape:
+            b, _, _, dim_head = q.shape
+            qs, ks, vs = (t.transpose(1, 2) for t in (q, k, v))
+        else:
+            b, _, dim_head = q.shape
+            dim_head //= heads
+            qs, ks, vs = (t.view(b, -1, heads, dim_head) for t in (q, k, v))
+        reason = _ineligible(qs, ks, vs, dim_head)
+        if reason is not None:
+            patch.log_once(('ineligible', tuple(qs.shape), reason), f'dense {tuple(qs.shape)}: {reason}')
+            return dense()
+        sink, sink_q = patch.sinks(transformer_options, tokens)
+        if q.dtype == torch.float32:
+            qs, ks, vs = (t.to(torch.bfloat16) for t in (qs, ks, vs))
+        out = ck.sol_attn(qs, ks, vs, tau=patch.tau, scale=kwargs.get('scale'), sink_blocks=list(sink), sink_q=list(sink_q), topk_ratio=patch.topk_ratio, token_aug=patch.extra_tokens).to(q.dtype)
+        patch.log_once(('sparse', tuple(qs.shape)), f'sparse {tuple(qs.shape)}, sinks {sink}/{sink_q}')
+        if skip_output_reshape:
+            return out.transpose(1, 2)
+        return out.reshape(b, -1, heads * dim_head)
+    return override
+
+def make_h3_block_patch(block, block_index, patch: SparseAttnPatch):
+    """Runs the block with its attention swapped for the sparse producer."""
+
+    def attention(h, rope_freqs=None, transformer_options={}):
+        return h3_sparse_attention(block.attn, h, rope_freqs, transformer_options, patch, block_index)
+
+    def block_patch(args, extra):
+        if h3_eligible(block.attn, args['img'], args['rope_freqs'], args['transformer_options'], patch, block_index):
+            args = {**args, 'attention': attention}
+        return extra['original_block'](args)
+    return block_patch
@@ -0,0 +1,126 @@
+"""Source blur modes: '<region> (<what stays sharp>)', SAM 3.1 or Sapiens2, blur or inverted colours.
+The segmenters are replaced by fixed masks, so this checks which pixels end up blurred, not the models."""
+from __future__ import annotations
+
+import os
+import sys
+import types
+import unittest
+
+import torch
+
+ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.insert(0, ROOT)
+# only what the blur uses of the shot loop: the frame key and SAM 3 (a fixed 'mouth' / part mask here)
+_SL = types.ModuleType("bfs_shot_loop")
+_SL._image_key = lambda t: (tuple(t.shape), float(t.float().sum()))
+_SL.DEFAULT_MASK = {}
+_SL.SAM_CALLS = []
+
+
+def _sam(frames, spec):
+    _SL.SAM_CALLS.append(spec["text"])
+    m = torch.zeros(frames.shape[:3])
+    if spec["text"] == "mouth":
+        m[:, 22:25, 28:36] = 1
+    else:
+        m[:, 10:30, 20:44] = 1
+    return m
+
+
+_SL.segment_frames = _sam
+sys.modules.setdefault("bfs_shot_loop", _SL)
+import bfs_sapiens as SP  # noqa: E402
+import bfs_source_blur as B  # noqa: E402
+
+H, W = 48, 64
+FACE = (slice(10, 30), slice(20, 44))
+LIPS = (slice(22, 24), slice(28, 36))
+TEETH = (slice(24, 25), slice(28, 36))
+
+
+def fake_classes(frames, out_size=None, batch=4):
+    c = torch.zeros(frames.shape[0], H, W, dtype=torch.uint8)
+    c[:, 5:45, 10:54] = SP.ID["Upper_Clothing"]
+    c[(slice(None),) + FACE] = SP.ID["Face_Neck"]
+    c[(slice(None),) + LIPS] = SP.ID["Upper_Lip"]
+    c[(slice(None),) + TEETH] = SP.ID["Upper_Teeth"]
+    return c
+
+
+class SourceBlurTest(unittest.TestCase):
+    def setUp(self):
+        B._CACHE.clear()
+        self._seg = SP.segment
+        SP.segment = fake_classes
+        self.frames = torch.rand(3, H, W, 3)
+
+    def tearDown(self):
+        SP.segment = self._seg
+
+    def mask(self, mode, **kw):
+        return B.blur_mask(self.frames, mode, segmenter=kw.pop("segmenter", "Sapiens2"), **kw)
+
+    def test_saved_workflows_keep_their_values(self):
+        for old in ("off", "face (keep mouth)", "head + hands (keep mouth)", "person (keep mouth)"):
+            self.assertIn(old, B.SOURCE_BLUR)
+        self.assertEqual(B.parse("masked area (mouth too)"), ("masked area", "mouth too"))
+        self.assertIsNone(B.parse("off"))
+
+    def test_keep_lips_and_tongue_blurs_the_teeth(self):
+        m = self.mask("face (keep lips + tongue)")
+        self.assertEqual(float(m[0, 15, 25]), 1.0)                 # face
+        self.assertEqual(float(m[0, 23, 32]), 0.0)                 # lips stay sharp
+        self.assertEqual(float(m[0, 24, 32]), 0.0)                 # teeth are inside the lips' small grow here...
+        big = fake_classes(self.frames)
+        big[:, 26:29, 28:36] = SP.ID["Lower_Teeth"]               # ...so check teeth away from the lips
+        SP.segment = lambda *a, **k: big
+        B._CACHE.clear()
+        m = self.mask("face (keep lips + tongue)")
+        self.assertEqual(float(m[0, 28, 32]), 1.0)
+        m = self.mask("face (keep mouth)")
+        self.assertEqual(float(m[0, 28, 32]), 0.0)                 # keep mouth keeps the teeth too
+
+    def test_mouth_too_blurs_everything_in_the_region(self):
+        m = self.mask("face (mouth too)")
+        self.assertEqual(float(m[0, 23, 32]), 1.0)
+        self.assertEqual(float(m[0, 2, 2]), 0.0)                   # background untouched
+
+    def test_masked_area_uses_the_shot_mask_without_segmenting(self):
+        SP.segment = lambda *a, **k: self.fail("masked area + mouth too must not segment")
+        area = torch.zeros(3, H, W)
+        area[:, 0:10, 0:10] = 1
+        m = self.mask("masked area (mouth too)", area=area)
+        self.assertEqual(float(m[0, 5, 5]), 1.0)
+        self.assertEqual(float(m[0, 20, 30]), 0.0)
+
+    def test_masked_area_without_a_mask_blurs_the_whole_person(self):
+        m = self.mask("masked area (mouth too)")
+        self.assertEqual(float(m[0, 40, 15]), 1.0)                 # clothing = person
+
+    def test_invert_colours_inside_the_mask_only(self):
+        x = torch.full((3, H, W, 3), 0.2)
+        out = B.blur_source(x, "face (mouth too)", 1.0, segmenter="Sapiens2", effect="invert colours")
+        self.assertAlmostEqual(float(out[0, 18, 30, 0]), 0.8, places=4)
+        self.assertAlmostEqual(float(out[0, 2, 2, 0]), 0.2, places=4)
+
+    def test_sam_keeps_the_old_behaviour(self):
+        SP.segment = lambda *a, **k: self.fail("SAM 3.1 + keep mouth must not run Sapiens2")
+        _SL.SAM_CALLS.clear()
+        m = self.mask("face (keep mouth)", segmenter="SAM 3.1")
+        self.assertEqual(_SL.SAM_CALLS, ["face", "mouth"])
+        self.assertEqual(float(m[0, 15, 25]), 1.0)
+        self.assertEqual(float(m[0, 23, 32]), 0.0)
+
+
+class SapiensSizeTest(unittest.TestCase):
+    def test_input_keeps_the_area_and_the_aspect(self):
+        for h, w in ((1080, 1920), (1920, 1080), (512, 512)):
+            ih, iw = SP.input_size(h, w)
+            self.assertEqual((ih % 16, iw % 16), (0, 0))
+            self.assertAlmostEqual(iw / ih, w / h, delta=0.03)          # never stretched to 1024x768
+            self.assertAlmostEqual(ih * iw / SP.PIXELS, 1.0, delta=0.04)
+
+
+if __name__ == "__main__":
+    unittest.main()
@@ -0,0 +1,211 @@
+from __future__ import annotations
+
+import importlib.util
+import os
+import sys
+import tempfile
+import types
+import unittest
+from unittest.mock import patch
+from pathlib import Path
+
+import torch
+
+ROOT = Path(__file__).resolve().parents[1]
+_TMP = tempfile.mkdtemp(prefix="bfs_compare_test_")
+_fp = types.ModuleType("folder_paths")
+_fp.get_temp_directory = lambda: _TMP
+sys.modules.setdefault("folder_paths", _fp)
+
+SPEC = importlib.util.spec_from_file_location("bfs_video_compare", ROOT / "bfs_video_compare.py")
+VC = importlib.util.module_from_spec(SPEC)
+SPEC.loader.exec_module(VC)
+
+
+class DifferenceTest(unittest.TestCase):
+    def test_equal_frames_are_black_and_score_zero(self):
+        x = torch.rand(3, 8, 8, 3)
+        m, mae, mse = VC.difference(x, x.clone())
+        self.assertEqual(float(m.abs().max()), 0.0)
+        self.assertEqual(float(mae.max()), 0.0)
+        self.assertEqual(VC.psnr(float(mse.mean())), float("inf"))
+
+    def test_map_lights_up_only_where_it_changed(self):
+        g = torch.zeros(1, 8, 8, 3)
+        t = g.clone()
+        t[:, :4, :4] = 1.0
+        m, mae, _ = VC.difference(g, t, gain=1.0)
+        self.assertEqual(m[0, 0, 0].tolist(), [1.0, 1.0, 1.0])     # fully different: white
+        self.assertEqual(m[0, 7, 7].tolist(), [0.0, 0.0, 0.0])     # unchanged: black
+        self.assertAlmostEqual(float(mae[0]), 255 / 4, places=3)    # a quarter of the frame
+
+    def test_heat_scale(self):
+        self.assertEqual(VC.heat(torch.tensor(1 / 3)).tolist(), [1.0, 0.0, 0.0])
+        self.assertEqual(VC.heat(torch.tensor(2 / 3)).tolist()[:2], [1.0, 1.0])
+
+
+class CompareNodeTest(unittest.TestCase):
+    def test_compares_at_the_guide_size_and_writes_three_previews(self):
+        import cv2
+        guide = torch.rand(20, 32, 48, 3)
+        target = torch.rand(18, 64, 96, 3)            # bigger and shorter, like the Join's images vs its guide
+        audio = {"waveform": torch.zeros(1, 2, 48000), "sample_rate": 48000}
+        out = VC.BFSVideoCompare().compare(guide, target, fps=24.0, audio=audio, preview_height=32)
+        diff, report, mean = out["result"]
+        self.assertEqual(tuple(diff.shape), (18, 32, 48, 3))
+        self.assertGreater(mean, 0)
+        self.assertIn("lengths differ", report)
+        self.assertIn("target scaled from 96x64 to 48x32", report)
+        ui = out["ui"]["bfs_compare"][0]
+        self.assertEqual((ui["frames"], len(ui["mae"]), ui["width"], ui["height"]), (18, 18, 48, 32))
+        for k in ("guide", "target", "difference"):
+            path = os.path.join(_TMP, ui[k]["subfolder"], ui[k]["filename"])
+            cap = cv2.VideoCapture(path)
+            n = 0
+            while cap.read()[0]:
+                n += 1
+            self.assertEqual(n, 18, k)
+
+    def test_all_shots_keep_guide_and_target_order_across_chunk_boundaries(self):
+        class Writer:
+            videos = {}
+            def __init__(self, path, *args, **kwargs):
+                self.frames = self.videos.setdefault(Path(path).name, [])
+            def write(self, frames):
+                self.frames.append(frames.clone())
+            def close(self):
+                pass
+        # Scene 1 red, scene 2 green: 22 frames span the 16-frame encoder chunk.
+        guide = [torch.zeros(10, 32, 48, 3), torch.zeros(12, 32, 48, 3)]
+        guide[0][..., 0] = 1
+        guide[1][..., 1] = 1
+        target = [x.clone() for x in guide]
+        with patch.object(VC.VIO, "Mp4Writer", Writer):
+            out = VC.BFSVideoCompare().compare(guide, target, preview_height=32)
+        self.assertEqual(out["ui"]["bfs_compare"][0]["frames"], 22)
+        self.assertEqual(out["result"][2], 0)
+        for name in ("guide.mp4", "target.mp4"):
+            frames = torch.cat(Writer.videos[name])
+            self.assertEqual(frames.shape[0], 22)
+            self.assertEqual(frames[:10, 0, 0].tolist(), [[1., 0., 0.]] * 10)
+            self.assertEqual(frames[10:, 0, 0].tolist(), [[0., 1., 0.]] * 12)
+
+    def test_joined_video_can_match_multiple_equal_timing_shots(self):
+        g = [torch.zeros(3, 32, 48, 3), torch.ones(4, 32, 48, 3)]
+        self.assertEqual(VC.video_chunk(g, 2, 6, 32, 48)[:, 0, 0, 0].tolist(), [0., 1., 1., 1.])
+        out = VC.BFSVideoCompare().compare(g, torch.cat(g), preview_height=32)
+        self.assertEqual(out["ui"]["bfs_compare"][0]["frames"], 7)
+        self.assertEqual(out["result"][2], 0)
+
+    def test_misaligned_shot_lists_require_join_timing_instead_of_silent_truncation(self):
+        g = [torch.zeros(5, 32, 48, 3), torch.zeros(7, 32, 48, 3)]
+        t = [torch.zeros(6, 32, 48, 3), torch.zeros(6, 32, 48, 3)]
+        with self.assertRaisesRegex(ValueError, "SAME Join"):
+            VC.BFSVideoCompare().compare(g, t)
+        with self.assertRaisesRegex(ValueError, "SAME Join"):
+            VC.BFSVideoCompare().compare(g, torch.zeros(8, 32, 48, 3))
+        with self.assertRaisesRegex(ValueError, "nonempty"):
+            VC.BFSVideoCompare().compare([], t)
+
+    def test_reference_pictures_go_to_the_player_no_taller_than_it(self):
+        from PIL import Image
+        guide, target = torch.rand(4, 32, 48, 3), torch.rand(4, 32, 48, 3)
+        ref = torch.rand(6, 80, 40, 3)                 # taller than the preview
+        ui = VC.BFSVideoCompare().compare(guide, target, preview_height=32, reference=ref)["ui"]["bfs_compare"][0]
+        self.assertEqual([r["filename"] for r in ui["refs"]], [f"ref_{k}.png" for k in range(6)])
+        im = Image.open(os.path.join(_TMP, ui["refs"][0]["subfolder"], "ref_0.png"))
+        self.assertEqual(im.size, (16, 32))
+        # a refs list as the planner / Unpack give it: pictures of different sizes, as ComfyUI hands a list input
+        refs = [torch.rand(1, 64, 32, 3), torch.rand(1, 20, 60, 3)] + [torch.rand(1, 8, 8, 3)] * 12
+        ui = VC.BFSVideoCompare().compare([guide], [target], preview_height=[32], reference=refs)["ui"]["bfs_compare"][0]
+        self.assertEqual(len(ui["refs"]), 12)                  # at most 12
+        sizes = [Image.open(os.path.join(_TMP, r["subfolder"], r["filename"])).size for r in ui["refs"][:2]]
+        self.assertEqual(sizes, [(16, 32), (60, 20)])
+        none = VC.BFSVideoCompare().compare(guide, target, preview_height=32)["ui"]["bfs_compare"][0]
+        self.assertEqual(none["refs"], [])
+
+
+@unittest.skipUnless(VC.VIO.ffmpeg_bin(), "needs an ffmpeg program")
+class ExportTest(unittest.TestCase):
+    """The player's recording (WebM from MediaRecorder) converted for sharing."""
+
+    @classmethod
+    def setUpClass(cls):
+        import subprocess
+        cls.src = os.path.join(_TMP, "rec_src.webm")
+        # 20 s of noise at 720p with sound: far above 10 MB at the browser's bitrate
+        subprocess.run([VC.VIO.ffmpeg_bin(), "-y", "-v", "error", "-f", "lavfi", "-i", "nullsrc=s=1280x720:r=30:d=20,geq=random(1)*255:128:128",
+                        "-f", "lavfi", "-i", "sine=frequency=440:duration=20", "-c:v", "libvpx", "-b:v", "16M",
+                        "-deadline", "realtime", "-cpu-used", "8", "-c:a", "libopus", "-shortest", cls.src], check=True)
+
+    def probe(self, path):
+        import json
+        import subprocess
+        r = subprocess.run([VC.VIO.ffmpeg_bin().replace("ffmpeg", "ffprobe"), "-v", "error", "-show_streams", "-of", "json", path],
+                           capture_output=True, text=True)
+        return {st["codec_type"]: st for st in json.loads(r.stdout)["streams"]}
+
+    def test_small_mp4_is_h264_aac_faststart_under_the_limit(self):
+        self.assertGreater(os.path.getsize(self.src), VC.LIMIT_BYTES)
+        out = VC.encode(self.src, "small", 20.0, os.path.join(_TMP, "exp_small"))
+        self.assertLessEqual(os.path.getsize(out), VC.LIMIT_BYTES)
+        st = self.probe(out)
+        self.assertEqual((st["video"]["codec_name"], st["video"]["pix_fmt"], st["audio"]["codec_name"]), ("h264", "yuv420p", "aac"))
+        head = open(out, "rb").read(256 * 1024)
+        self.assertLess(head.find(b"moov"), head.find(b"mdat") if b"mdat" in head else 1 << 30)   # faststart: moov first
+
+    def test_gif_fits_the_limit(self):
+        out = VC.encode(self.src, "gif", 20.0, os.path.join(_TMP, "exp_gif"))
+        self.assertTrue(out.endswith(".gif"))
+        self.assertLessEqual(os.path.getsize(out), VC.LIMIT_BYTES)
+
+    def test_bad_ids_and_formats_are_refused(self):
+        with self.assertRaises(ValueError):
+            VC.write_part("../../etc", 0, b"x")
+        with self.assertRaises(ValueError):
+            VC.encode(self.src, "avi", 1.0, os.path.join(_TMP, "x"))
+        rid = "abcdef0123"
+        VC.write_part(rid, 0, b"12345")
+        VC.write_part(rid, 5, b"678")
+        self.assertEqual(open(os.path.join(_TMP, "bfs_compare", "exports", rid + ".rec"), "rb").read(), b"12345678")
+
+
+class NoFfmpegTest(unittest.TestCase):
+    """Windows portable installs often have no ffmpeg program: everything must go through PyAV."""
+
+    def setUp(self):
+        self._saved = dict(VC.VIO._BIN)
+        VC.VIO._BIN.update(ffmpeg=None, ffprobe=None)
+
+    def tearDown(self):
+        VC.VIO._BIN.clear()
+        VC.VIO._BIN.update(self._saved)
+
+    def test_writer_and_reader_work_without_ffmpeg(self):
+        import av
+        path = os.path.join(_TMP, "noffmpeg.mp4")
+        w = VC.VIO.Mp4Writer(path, 33, 21, 24.0, {"waveform": torch.zeros(1, 2, 48000), "sample_rate": 48000},
+                             metadata={"prompt": {"1": 2}})
+        yy, xx = torch.meshgrid(torch.linspace(0, 1, 21), torch.linspace(0, 1, 33), indexing="ij")
+        x = torch.stack([torch.stack([xx, yy, (xx + yy + t / 30) % 1], -1) for t in range(30)])   # smooth, like video
+        w.write(x[:16])
+        w.write(x[16:])
+        w.close()
+        with av.open(path) as c:
+            self.assertEqual(len(c.streams.audio), 1)
+            self.assertEqual((c.streams.video[0].codec_context.width, c.streams.video[0].codec_context.height), (34, 22))
+            self.assertEqual(c.metadata.get("prompt"), '{"1": 2}')
+        frames, s = VC.VIO.read_video_scaled(path, 1e9)
+        self.assertEqual((tuple(frames.shape), s), ((30, 22, 34, 3), 1.0))
+        self.assertLess(float((frames[:, :21, :33] - x).abs().mean()), 0.05)   # lossy, but the same pictures
+        small, s = VC.VIO.read_video_scaled(path, 30 * 22 * 34 * 3 * 4 / 4)   # a quarter of the bytes
+        self.assertLess(small.shape[1], 22)
+
+    def test_compare_node_without_ffmpeg(self):
+        out = VC.BFSVideoCompare().compare(torch.rand(10, 32, 48, 3), torch.rand(10, 32, 48, 3), preview_height=32)
+        ui = out["ui"]["bfs_compare"][0]
+        self.assertTrue(os.path.getsize(os.path.join(_TMP, ui["guide"]["subfolder"], ui["guide"]["filename"])) > 0)
+
+
+if __name__ == "__main__":
+    unittest.main()
@@ -0,0 +1,194 @@
+import copy
+import importlib.util
+import json
+from pathlib import Path
+import sys
+from types import SimpleNamespace
+import pytest
+import torch
+
+ROOT=Path(__file__).resolve().parents[1]
+sys.path.insert(0,str(ROOT))
+import minimax_h3_native_temporal as node
+
+def load(name,path):
+ s=importlib.util.spec_from_file_location(name,path);m=importlib.util.module_from_spec(s);sys.modules[name]=m;s.loader.exec_module(m);return m
+CORE=load('native_temporal_comfy_fixture',ROOT/'tests/fixtures/comfy_h3_layout_8cfe5e1.py')
+
+def example(vt=7):
+ refs=[dict(kind='image',latent_h=4,latent_w=8),dict(kind='video_audio',latent_h=8,latent_w=4,latent_t=vt,ref_audio_t=3)]
+ l=CORE.PackedLayout(3,7,8,8,2,refs=refs)
+ return l,refs
+
+def test_layout_matches_actual_training_coordinates():
+ l,refs=example();before=l.position_ids.clone()
+ aligned,src,tgt=node.temporal_layout(l,refs,None)
+ golden=json.loads((ROOT/'tests/fixtures/h3_native_temporal_training_positions.json').read_text())
+ torch.testing.assert_close(aligned.position_ids,torch.tensor(golden['position_ids'],dtype=torch.float64),rtol=0,atol=1e-12)
+ assert src.tolist()==golden['source']
+ assert torch.equal(l.position_ids,before)
+ assert torch.equal(aligned.position_ids[~src],before[~src])
+ assert torch.equal(aligned.position_ids[src,1:],before[src,1:])
+ assert not (src&tgt).any()
+
+def test_wrong_video_index_and_temporal_mismatch_rejected():
+ l,r=example()
+ with pytest.raises(ValueError,match='Video 2'):node.temporal_layout(l,r,None,2)
+ l,r=example(6)
+ with pytest.raises(ValueError,match='identical temporal'):node.temporal_layout(l,r,None)
+ with pytest.raises(ValueError,match='Add Guide'):node.temporal_layout(l,r,[{}])
+
+def context():
+ l,r=example();a,s,t=node.temporal_layout(l,r,None)
+ return node.core.TemporalContext(a.position_ids[:,0].float()[None]/40,s[None],t[None],torch.ones_like(s[None]),2,.2,.25,6)
+
+def test_attention_adapter_matches_dense_score_policy_and_shapes():
+ ctx=context();torch.manual_seed(12)
+ q,k,v=[torch.randn(1,2,ctx.times.shape[1],8) for _ in range(3)]
+ def forbidden(*args,**kwargs):raise AssertionError('wrong backend')
+ out=node.attention_override(ctx)(forbidden,q,k,v,2,skip_reshape=True)
+ expected=node.core.dense_reference(q,k,v,ctx).transpose(1,2).flatten(2)
+ torch.testing.assert_close(out,expected)
+ raw=[x.transpose(1,2).flatten(2) for x in (q,k,v)]
+ torch.testing.assert_close(node.attention_override(ctx)(forbidden,*raw,2),expected)
+
+def test_token_refiner_uses_existing_attention():
+ ctx=context();q=torch.randn(1,2,3,8)
+ def original(*args,**kwargs):return 'original'
+ assert node.attention_override(ctx)(original,q,q,q,2,skip_reshape=True)=='original'
+
+class Model:
+ def __init__(self):self.model_options={}
+ def clone(self):m=Model();m.model_options=copy.deepcopy(self.model_options);return m
+ def get_model_object(self,key):return type('MiniMaxH3Model',(),{})()
+ def set_model_unet_function_wrapper(self,w):self.model_options['model_function_wrapper']=w
+
+def test_per_model_wrapper_clones_payload_and_applies_attention():
+ m=Model();patched=node.patch_temporal_model(m);assert not m.model_options
+ l,r=example();payload=dict(layout=l,refs=r)
+ def fn(x,t,**c):
+  assert c['minimax_payload']['layout'] is not l
+  assert 'optimized_attention_override' in c['transformer_options']
+  return 'ok'
+ args=dict(input=torch.zeros(1),timestep=torch.ones(1),c=dict(minimax_payload=payload))
+ assert patched.model_options['model_function_wrapper'](fn,args)=='ok'
+ assert payload['layout'] is l and 'transformer_options' not in args['c']
+ with pytest.raises(ValueError,match='already installed'):node.patch_temporal_model(patched)
+
+def test_incompatible_attention_rejected():
+ m=Model();m.model_options={'transformer_options':{'optimized_attention_override':object()}}
+ with pytest.raises(ValueError,match='VSA'):node.patch_temporal_model(m)
+ with pytest.raises(ValueError,match='MODEL input'):node.patch_temporal_model(None)
+
+
+def test_second_video_selection_preserves_first_video_and_images():
+ refs=[dict(kind='image',latent_h=4,latent_w=8),
+       dict(kind='video',latent_h=4,latent_w=4,latent_t=3,ref_audio_t=0),
+       dict(kind='video',latent_h=8,latent_w=4,latent_t=7,ref_audio_t=0)]
+ native=CORE.PackedLayout(3,7,8,8,2,refs=refs)
+ aligned,source,target=node.temporal_layout(native,refs,None,2)
+ assert int(source.sum())==56
+ assert torch.equal(aligned.position_ids[~source],native.position_ids[~source])
+ assert not source[3:23].any()
+
+@pytest.mark.parametrize('install_after_temporal',[False,True])
+@pytest.mark.parametrize('dense_name,expected_backend',[('comfy_kitchen_int8',2),('pytorch',0)])
+def test_model_attention_backend_is_honored_without_manual_selection(monkeypatch,install_after_temporal,dense_name,expected_backend):
+ from types import ModuleType
+ mod=ModuleType('comfy.ldm.modules.attention')
+ def dense(*args,**kwargs):return 'kitchen'
+ mod.get_attention_function=lambda name,default=None:dense if name==dense_name else default
+ monkeypatch.setitem(sys.modules,'comfy.ldm.modules.attention',mod)
+ def setter(optimized_attention):
+  def optimized_attention_override(_, *args, **kwargs):return optimized_attention(*args,**kwargs)
+  optimized_attention_override.__module__='comfy.model_patcher'
+  optimized_attention_override.__qualname__='ModelPatcher.set_model_optimized_attention.<locals>.optimized_attention_override'
+  return optimized_attention_override
+ incoming=setter(dense)
+ m=Model()
+ if not install_after_temporal:m.model_options={'transformer_options':{'optimized_attention_override':incoming}}
+ patched=node.patch_temporal_model(m)
+ selected=[]
+ def capture(ctx,previous=None,backend=None,**kwargs):
+  selected.append((backend,previous));return 'temporal attention'
+ monkeypatch.setattr(node,'attention_override',capture)
+ l,r=example()
+ args=dict(input=torch.zeros(1),timestep=torch.ones(1),c=dict(minimax_payload=dict(layout=l,refs=r),transformer_options={'optimized_attention_override':incoming}))
+ def fn(x,t,**c):
+  assert c['transformer_options']['optimized_attention_override']=='temporal attention'
+  return 'ok'
+ assert patched.model_options['model_function_wrapper'](fn,args)=='ok'
+ assert selected==[(node.BACKENDS[expected_backend],incoming)]
+
+@pytest.mark.parametrize('hidden_by_later_dense_node',[False,True])
+def test_sol_node_owned_producer_is_bypassed_but_temporal_override_remains(monkeypatch,hidden_by_later_dense_node):
+ Patch=type('SparseAttnPatch',(),{'__module__':'comfy_extras.nodes_sparse_attention'})
+ patch=Patch();patch.vsa=False;patch.topk_ratio=0.
+ previous=None
+ def sparse_override(*args):return patch,previous,args
+ sparse_override.__module__='comfy_extras.nodes_sparse_attention'
+ sparse_override.__qualname__='make_attention_override.<locals>.override'
+ def block_patch(*args):return patch,args
+ block_patch.__module__=sparse_override.__module__
+ block_patch.__qualname__='make_h3_block_patch.<locals>.block_patch'
+ m=Model();m.model_options={'transformer_options':{'optimized_attention_override':None if hidden_by_later_dense_node else sparse_override,'patches_replace':{'dit':{'block':block_patch}}}}
+ patched=node.patch_temporal_model(m)
+ selected=[]
+ def capture(ctx,previous=None,backend=None,sparse_patch=None,**kw):
+  selected.append((backend,sparse_patch));return 'temporal sol hook'
+ monkeypatch.setattr(node,'attention_override',capture)
+ l,r=example();opts=patched.model_options['transformer_options']
+ args=dict(input=torch.zeros(1),timestep=torch.ones(1),c=dict(minimax_payload=dict(layout=l,refs=r),transformer_options=opts))
+ def fn(x,t,**c):
+  assert c['transformer_options']['patches_replace']['dit']=={}
+  assert c['transformer_options']['optimized_attention_override']=='temporal sol hook'
+  return 'ok'
+ assert patched.model_options['model_function_wrapper'](fn,args)=='ok'
+ assert selected==[(node.SOL_BACKEND,patch)]
+ assert m.model_options['transformer_options']['patches_replace']['dit']
+
+
+def test_sol_dense_window_preserves_temporal_policy(monkeypatch,capsys):
+ l,r=example();aligned,src,tgt=node.temporal_layout(l,r,None)
+ ctx=node.core.TemporalContext(aligned.position_ids[:,0].float()[None]/40,src[None],tgt[None],torch.ones(1,l.seq_len,dtype=torch.bool),2.,.2,.25,6.)
+ plan=node.fast.make_plan(aligned.position_ids,src,tgt,2.,.2,.25,6.)
+ patch=SimpleNamespace(dense_reason=lambda *a:'outside sigma window',log_once=lambda *a:None)
+ q,k,v=[torch.randn(1,2,l.seq_len,128) for _ in range(3)]
+ monkeypatch.setattr(node.fast,'attention',lambda q,k,v,p:node.core.dense_reference(q,k,v,ctx))
+ expected=node.core.dense_reference(q,k,v,ctx)
+ out=node.attention_override(ctx,backend=node.SOL_BACKEND,plan=plan,sparse_patch=patch,dense_backend=node.BACKENDS[0],log_first=True)(None,q,k,v,2,skip_reshape=True,skip_output_reshape=True)
+ torch.testing.assert_close(out,expected)
+ assert 'dense fallback: outside sigma window' in capsys.readouterr().out
+
+
+def test_sol_sparse_window_runs_temporal_kernel_and_logs_activation(monkeypatch,capsys):
+ from types import ModuleType
+ ck=ModuleType('comfy_kitchen');ck.sol_attn_is_available=lambda device:True
+ monkeypatch.setitem(sys.modules,'comfy_kitchen',ck)
+ l,r=example();aligned,src,tgt=node.temporal_layout(l,r,None)
+ ctx=node.core.TemporalContext(aligned.position_ids[:,0].float()[None]/40,src[None],tgt[None],torch.ones(1,l.seq_len,dtype=torch.bool),2.,.2,.25,6.)
+ plan=node.fast.make_plan(aligned.position_ids,src,tgt,2.,.2,.25,6.)
+ patch=SimpleNamespace(dense_reason=lambda *a:None,sinks=lambda *a:((0,0),(0,0)),tau=1.3,extra_tokens=256)
+ actual_sol=node.sol.attention
+ calls=[]
+ def oracle(q,k,v,key_bias=None,**kw):
+  calls.append(key_bias)
+  mask=None if key_bias is None else key_bias.view(1,1,1,-1)
+  return torch.nn.functional.scaled_dot_product_attention(q.transpose(1,2),k.transpose(1,2),v.transpose(1,2),attn_mask=mask).transpose(1,2)
+ monkeypatch.setattr(node.sol,'attention',lambda *a,**kw:actual_sol(*a,**kw,kernel=oracle))
+ q,k,v=[torch.randn(1,2,l.seq_len,128) for _ in range(3)]
+ expected=node.core.dense_reference(q,k,v,ctx)
+ out=node.attention_override(ctx,backend=node.SOL_BACKEND,plan=plan,sparse_patch=patch,dense_backend=node.BACKENDS[0])(None,q,k,v,2,skip_reshape=True,skip_output_reshape=True)
+ torch.testing.assert_close(out,expected,atol=1e-6,rtol=1e-5)
+ assert len(calls)==plan.frames+1
+ assert 'sol-attn ACTIVE' in capsys.readouterr().out
+
+
+def test_node_prepares_selected_kitchen_before_sampling_but_not_flash(monkeypatch):
+ calls=[]
+ monkeypatch.setattr(node.sol.native_kernel,'prepare_model',lambda model:calls.append(model))
+ m=Model();m.load_device=torch.device('cuda:0')
+ node.patch_temporal_model(m,backend=node.BACKENDS[0])
+ assert calls==[]
+ node.patch_temporal_model(m,backend=node.BACKENDS[2])
+ assert calls==[m]
@@ -0,0 +1,105 @@
+import concurrent.futures,hashlib,io,sys
+from pathlib import Path
+from types import SimpleNamespace
+import pytest
+sys.path.insert(0,str(Path(__file__).resolve().parents[1]))
+import minimax_h3_temporal_bootstrap as boot
+
+
+class NativeFunction:
+ def __init__(self,result):self.result=result
+ def __call__(self):return self.result
+
+@pytest.fixture
+def setup(monkeypatch,tmp_path):
+ monkeypatch.setenv('BFS_H3_TEMPORAL_CACHE_DIR',str(tmp_path))
+ boot._READY.clear();boot._FAILED.clear()
+ source=b"VERSION='h3_native_temporal_kernel_v1'\ndef is_available(device):return True\n"
+ binary=b'fake verified native fixture'
+ assets=[('temporal_attention.py','https://test.invalid/api',hashlib.sha256(source).hexdigest(),1024),('backends/cuda/native_temporal/libck_temporal_sm120.so','https://test.invalid/bin',hashlib.sha256(binary).hexdigest(),1024)]
+ monkeypatch.setattr(boot,'ASSETS',tuple(assets))
+ requests=[]
+ def urlopen(request,timeout):
+  requests.append(request.full_url)
+  return io.BytesIO(source if request.full_url.endswith('/api') else binary)
+ monkeypatch.setattr(boot.urllib.request,'urlopen',urlopen)
+ loads=[]
+ def cdll(path):
+  loads.append(path)
+  return SimpleNamespace(ck_temporal_abi_version=NativeFunction(1),ck_temporal_arch=NativeFunction(120))
+ monkeypatch.setattr(boot.ctypes,'CDLL',cdll)
+ monkeypatch.setattr(boot,'compatible',lambda d:(True,None))
+ yield SimpleNamespace(root=boot.cache_root(),requests=requests,loads=loads,source=source,binary=binary)
+ boot._READY.clear();boot._FAILED.clear()
+
+
+def test_first_use_installs_once_and_preserves_current_environment(setup):
+ with concurrent.futures.ThreadPoolExecutor(max_workers=4) as pool:
+  results=list(pool.map(boot.ensure,['cuda:0']*4))
+ assert all(m is results[0] for m in results)
+ assert len(setup.requests)==2 and len(setup.loads)==1
+ assert (setup.root/'temporal_attention.py').read_bytes()==setup.source
+ assert not list(setup.root.rglob('*.partial'))
+ assert str(results[0].__file__).startswith(str(setup.root))
+
+
+def test_cached_bytes_work_without_network_after_restart(setup,monkeypatch):
+ assert boot.ensure('cuda:0') is not None
+ boot._READY.clear();boot._FAILED.clear()
+ def offline(*a,**kw):raise AssertionError('valid cache must not access the network')
+ monkeypatch.setattr(boot.urllib.request,'urlopen',offline)
+ assert boot.ensure('cuda:0') is not None
+
+
+def test_corrupted_download_never_loads_or_executes_code(setup,monkeypatch):
+ monkeypatch.setattr(boot.urllib.request,'urlopen',lambda *a,**kw:io.BytesIO(b'wrong bytes'))
+ assert boot.ensure('cuda:0') is None
+ assert setup.loads==[]
+ assert not (setup.root/'temporal_attention.py').exists()
+ assert not list(setup.root.rglob('*.partial'))
+
+
+def test_failure_is_not_retried_every_attention_block(setup,monkeypatch):
+ calls=[]
+ def broken(*a,**kw):calls.append(1);raise OSError('offline')
+ monkeypatch.setattr(boot.urllib.request,'urlopen',broken)
+ assert boot.ensure('cuda:0') is None
+ assert boot.ensure('cuda:0') is None
+ assert len(calls)==1
+
+
+def test_bad_existing_cache_is_replaced_only_after_verified_download(setup):
+ setup.root.mkdir(parents=True)
+ (setup.root/'temporal_attention.py').write_text('corrupt')
+ assert boot.ensure('cuda:0') is not None
+ assert (setup.root/'temporal_attention.py').read_bytes()==setup.source
+
+
+def test_size_limit_aborts_and_cleans_partial_file(tmp_path,monkeypatch):
+ monkeypatch.setattr(boot.urllib.request,'urlopen',lambda *a,**kw:io.BytesIO(b'12345'))
+ with pytest.raises(RuntimeError,match='size limit'):boot.download(tmp_path/'asset','https://test.invalid/asset','ignored',2)
+ assert list(tmp_path.iterdir())==[]
+
+
+def test_unsupported_device_keeps_existing_backend_without_download(setup,monkeypatch):
+ monkeypatch.setattr(boot,'compatible',lambda d:(False,'unsupported GPU'))
+ assert boot.ensure('cuda:0') is None
+ assert setup.requests==[]
+
+
+def test_device_failure_does_not_block_supported_device(setup,monkeypatch):
+ monkeypatch.setattr(boot,'compatible',lambda d:(d=='cuda:1','unsupported GPU'))
+ assert boot.ensure('cuda:0') is None
+ assert boot.ensure('cuda:1') is not None
+
+
+def test_opt_out_is_checked_before_gpu_or_network(monkeypatch):
+ monkeypatch.setenv('BFS_H3_TEMPORAL_AUTO_INSTALL','0')
+ assert boot.compatible('cuda:0')==(False,'automatic setup disabled')
+
+
+def test_bad_binary_arch_is_rejected_before_python_api_execution(setup,monkeypatch):
+ before=set(sys.modules)
+ monkeypatch.setattr(boot.ctypes,'CDLL',lambda p:SimpleNamespace(ck_temporal_abi_version=NativeFunction(1),ck_temporal_arch=NativeFunction(89)))
+ assert boot.ensure('cuda:0') is None
+ assert not [n for n in set(sys.modules)-before if n.startswith('_bfs_ck_temporal')]
@@ -0,0 +1,29 @@
+import sys
+from pathlib import Path
+import torch
+sys.path.insert(0,str(Path(__file__).resolve().parents[1]))
+import minimax_h3_temporal_fast as fast
+import minimax_h3_native_temporal_core as core
+
+
+def oracle(q,k,v):
+    scores=q.double()@k.double().transpose(-1,-2)/q.shape[-1]**.5
+    return (scores.softmax(-1)@v.double()).to(q.dtype),scores.logsumexp(-1).float()
+
+
+def test_exact_partition_matches_original_temporal_policy():
+    torch.manual_seed(5)
+    frames=7;sf=2;tf=3;n=4+frames*sf+2+frames*tf
+    pos=torch.zeros(n,3,dtype=torch.float64)
+    times=torch.tensor([0,1,5,9,13,17,18],dtype=torch.float64)*5/3
+    pos[4:18,0]=times.repeat_interleave(sf)
+    pos[20:,0]=times.repeat_interleave(tf)
+    source=torch.zeros(n,dtype=torch.bool);source[4:18]=True
+    target=torch.zeros(n,dtype=torch.bool);target[20:]=True
+    q,k,v=[torch.randn(1,2,n,8) for _ in range(3)]
+    for strength,cap in [(2.,6.),(0.,6.),(2.,0.),(10.,6.)]:
+        plan=fast.make_plan(pos,source,target,strength,.2,.25,cap)
+        ctx=core.TemporalContext(pos[:,0].float()[None]/40,source[None],target[None],torch.ones(1,n,dtype=torch.bool),strength,.2,.25,cap)
+        actual=fast.attention(q,k,v,plan,flash=oracle,frame_chunk=3)
+        expected=core.dense_reference(q,k,v,ctx)
+        torch.testing.assert_close(actual,expected,atol=1e-6,rtol=1e-5)
@@ -0,0 +1,55 @@
+import sys
+from pathlib import Path
+from types import ModuleType,SimpleNamespace
+import torch
+import pytest
+sys.path.insert(0,str(Path(__file__).resolve().parents[1]))
+import minimax_h3_temporal_kernel as bridge
+
+
+def fake_api(monkeypatch):
+ api=ModuleType('comfy_kitchen.temporal_attention');api.VERSION='h3_native_temporal_kernel_v1';api.is_available=lambda d:True
+ records=[]
+ api.TemporalPolicy=lambda *args:args
+ def dense(q,k,v,p,**kw):records.append(('dense',p,kw));return torch.ones(1,dtype=torch.bfloat16)
+ def sol(q,k,v,p,**kw):records.append(('sol',p,kw));return torch.ones(1,dtype=torch.bfloat16)
+ api.int8_attention=dense;api.sol_attn=sol
+ monkeypatch.setitem(sys.modules,'comfy_kitchen.temporal_attention',api)
+ return api,records
+
+
+def test_bridge_uses_one_native_call_and_preserves_policy(monkeypatch):
+ api,records=fake_api(monkeypatch)
+ q=SimpleNamespace(device=torch.device('cuda'),dtype=torch.bfloat16)
+ plan=SimpleNamespace(source_start=4,source_stop=10,target_start=12,target_stop=21,source_frame_rows=2,target_frame_rows=3,frame_times=(0.,.7,1.4))
+ ctx=SimpleNamespace(strength=2.,window=.2,falloff=.25,cap=6.)
+ bridge.run('dense',q,q,q,plan,ctx)
+ bridge.run('sol',q,q,q,plan,ctx,tau=1.3,token_aug=256,sink_q=(0,1))
+ assert len(records)==2 and [r[0] for r in records]==['dense','sol']
+ assert records[0][1]==(4,10,12,21,2,3,(0.,.7,1.4),2.,.2,.25,6.)
+ assert records[1][2]=={'tau':1.3,'token_aug':256,'sink_q':(0,1)}
+ ctx.strength=3.
+ assert bridge.policy_for(api,plan,ctx)[7]==3.
+
+
+def test_bridge_rejects_wrong_extension_version(monkeypatch):
+ api,_=fake_api(monkeypatch);api.VERSION='unknown'
+ q=SimpleNamespace(device=torch.device('cuda'))
+ with pytest.raises(RuntimeError,match='version'):bridge.api_for(q)
+
+
+def test_cpu_and_missing_binary_keep_compatibility_path(monkeypatch):
+ assert bridge.api_for(torch.zeros(1)) is None
+ api,_=fake_api(monkeypatch);api.is_available=lambda d:False
+ monkeypatch.setattr(bridge.bootstrap,'ensure',lambda d:None)
+ q=SimpleNamespace(device=torch.device('cuda'))
+ assert bridge.api_for(q) is None
+
+
+def test_prepare_model_runs_before_sampling_when_cuda_is_selected(monkeypatch):
+ calls=[]
+ monkeypatch.setattr(bridge,'api_for',lambda q:calls.append(q.device) or 'ready')
+ assert bridge.prepare_model(SimpleNamespace(load_device=torch.device('cuda:0'))) == 'ready'
+ assert calls==[torch.device('cuda:0')]
+ assert bridge.prepare_model(SimpleNamespace(load_device=torch.device('cpu'))) is None
+ assert bridge.prepare_model(SimpleNamespace()) is None
@@ -0,0 +1,55 @@
+import sys
+from pathlib import Path
+from types import ModuleType
+import torch
+import pytest
+sys.path.insert(0,str(Path(__file__).resolve().parents[1]))
+import minimax_h3_temporal_kitchen as kitchen
+import minimax_h3_temporal_fast as fast
+import minimax_h3_native_temporal_core as core
+import minimax_h3_native_temporal as node
+
+@pytest.mark.parametrize('strength,cap',[(2.,6.),(0.,6.),(2.,0.),(10.,6.)])
+def test_frame_bias_matches_full_temporal_rule(strength,cap):
+    torch.manual_seed(42)
+    frames,sf,tf=7,2,3
+    n=4+frames*sf+2+frames*tf+3
+    pos=torch.zeros(n,3,dtype=torch.float64)
+    times=torch.tensor([0,1,5,9,13,17,18],dtype=torch.float64)*5/3
+    pos[4:18,0]=times.repeat_interleave(sf);pos[20:41,0]=times.repeat_interleave(tf)
+    source=torch.zeros(n,dtype=torch.bool);source[4:18]=True
+    target=torch.zeros(n,dtype=torch.bool);target[20:41]=True
+    plan=fast.make_plan(pos,source,target,strength,.2,.25,cap)
+    ctx=core.TemporalContext(pos[:,0].float()[None]/40,source[None],target[None],torch.ones(1,n,dtype=torch.bool),strength,.2,.25,cap)
+    q,k,v=[torch.randn(1,2,n,8) for _ in range(3)]
+    calls=[]
+    def oracle(q,k,v,attn_mask=None):
+        if attn_mask is not None:
+            assert attn_mask.shape==(1,1,1,n)
+            calls.append(attn_mask)
+        return torch.nn.functional.scaled_dot_product_attention(q,k,v,attn_mask=attn_mask)
+    actual=kitchen.attention(q,k,v,plan,ctx,kernel=oracle)
+    expected=core.dense_reference(q,k,v,ctx)
+    torch.testing.assert_close(actual,expected,atol=1e-6,rtol=1e-5)
+    torch.testing.assert_close(kitchen.attention(q,k,v,plan,ctx,kernel=oracle),actual)
+    if strength and cap:
+        assert len(calls)==2*frames
+        assert plan._kitchen_biases.numel()==frames*n
+        assert torch.all(plan._kitchen_biases[:,~source]==0)
+
+
+def test_detects_only_official_model_attention_backend(monkeypatch):
+    mod=ModuleType('comfy.ldm.modules.attention')
+    kernels={'pytorch':lambda:None,'comfy_kitchen_int8':lambda:None}
+    mod.get_attention_function=lambda name,default=None:kernels.get(name,default)
+    monkeypatch.setitem(sys.modules,'comfy.ldm.modules.attention',mod)
+    def setter(optimized_attention):
+        def optimized_attention_override(_, *args, **kwargs):
+            return optimized_attention(*args,**kwargs)
+        optimized_attention_override.__module__='comfy.model_patcher'
+        optimized_attention_override.__qualname__='ModelPatcher.set_model_optimized_attention.<locals>.optimized_attention_override'
+        return optimized_attention_override
+    for key,fn in kernels.items():assert node.dense_backend_selection(setter(fn))==key
+    assert node.dense_backend_selection(None) is None
+    with pytest.raises(ValueError):node.dense_backend_selection(lambda *args:None)
+    with pytest.raises(ValueError):node.dense_backend_selection(setter(lambda:None))
@@ -0,0 +1,107 @@
+import sys
+from pathlib import Path
+from types import SimpleNamespace
+import torch
+import pytest
+sys.path.insert(0,str(Path(__file__).resolve().parents[1]))
+import minimax_h3_temporal_sol as sol
+import minimax_h3_temporal_fast as fast
+import minimax_h3_native_temporal_core as core
+import minimax_h3_sparse_compat as compat
+
+@pytest.mark.parametrize('strength,cap',[(2.,6.),(0.,6.),(2.,0.),(10.,6.)])
+def test_temporal_sol_bias_matches_dense_policy(strength,cap):
+ torch.manual_seed(14);frames,sf,tf=7,2,3;n=44
+ pos=torch.zeros(n,3,dtype=torch.float64)
+ times=torch.tensor([0,1,5,9,13,17,18],dtype=torch.float64)*5/3
+ pos[4:18,0]=times.repeat_interleave(sf);pos[20:41,0]=times.repeat_interleave(tf)
+ source=torch.zeros(n,dtype=torch.bool);source[4:18]=True
+ target=torch.zeros(n,dtype=torch.bool);target[20:41]=True
+ plan=fast.make_plan(pos,source,target,strength,.2,.25,cap)
+ ctx=core.TemporalContext(pos[:,0].float()[None]/40,source[None],target[None],torch.ones(1,n,dtype=torch.bool),strength,.2,.25,cap)
+ q,k,v=[torch.randn(1,2,n,128) for _ in range(3)]
+ calls=[]
+ def oracle(q,k,v,key_bias=None,**kw):
+  assert kw['sink_blocks'][1]*64>=plan.source_stop
+  assert kw['topk_ratio']==0. and kw['tail'] is True
+  if key_bias is not None:
+   assert key_bias.shape==(n,)
+   assert torch.all(key_bias[~source]==0)
+  calls.append(key_bias)
+  return torch.nn.functional.scaled_dot_product_attention(q.transpose(1,2),k.transpose(1,2),v.transpose(1,2),attn_mask=None if key_bias is None else key_bias.view(1,1,1,-1)).transpose(1,2)
+ actual=sol.attention(q,k,v,plan,ctx,tau=1.3,kernel=oracle)
+ expected=core.dense_reference(q,k,v,ctx)
+ torch.testing.assert_close(actual,expected,atol=1e-6,rtol=1e-5)
+ assert len(calls)==(frames+1 if strength and cap else 1)
+ # Repeat uses the compact cached biases and does not change the policy.
+ torch.testing.assert_close(sol.attention(q,k,v,plan,ctx,tau=1.3,kernel=oracle),actual)
+
+
+def make_sparse(vsa=False,topk=0.,module='comfy_extras.nodes_sparse_attention'):
+ SparseAttnPatch=type('SparseAttnPatch',(),{'__module__':module})
+ patch=SparseAttnPatch();patch.vsa=vsa;patch.topk_ratio=topk
+ previous=None
+ def override(*args):return patch,previous,args
+ override.__module__=module
+ override.__qualname__='make_attention_override.<locals>.override'
+ def block_patch(*args):return patch,args
+ block_patch.__module__=override.__module__
+ block_patch.__qualname__='make_h3_block_patch.<locals>.block_patch'
+ return patch,override,block_patch
+
+
+def test_only_sol_owned_hooks_are_bypassed_without_mutating_model():
+ patch,override,block=make_sparse()
+ options={'optimized_attention_override':override,'patches_replace':{'dit':{('double_block',0):block},'other':{'keep':1}}}
+ dense,actual=compat.selection(options)
+ assert dense is None and actual is patch
+ copied=compat.without_owned_blocks(options,patch)
+ assert copied['patches_replace']['dit']=={}
+ assert copied['patches_replace']['other']=={'keep':1}
+ assert options['patches_replace']['dit']
+ # A dense selection applied after Sparse can hide the sparse closure; recover
+ # the exact same state from the node's owned H3 block hook.
+ hidden={**options,'optimized_attention_override':None}
+ assert compat.selection(hidden)==(None,patch)
+ unknown={**options,'patches_replace':{'dit':{'unknown':lambda:None}}}
+ with pytest.raises(ValueError,match='another attention/block'):compat.selection(unknown)
+
+@pytest.mark.parametrize('vsa,topk',[(True,0.),(False,.1)])
+def test_vsa_and_sla_still_rejected(vsa,topk):
+ _,override,block=make_sparse(vsa,topk)
+ with pytest.raises(ValueError,match='only sol-attn'):compat.selection({'optimized_attention_override':override})
+ with pytest.raises(ValueError,match='only sol-attn'):compat.selection({'patches_replace':{'dit':{'block':block}}})
+
+
+@pytest.mark.parametrize('module',[
+ '/home/alissonerdx/tools/ComfyUI/comfy_extras/nodes_sparse_attention',
+ 'C:\\ComfyUI\\comfy_extras\\nodes_sparse_attention',
+ 'nodes_sparse_attention',
+ 'comfy_extras.nodes_sparse_attention',
+])
+def test_comfy_file_loader_module_names_are_recognized(module):
+ patch,override,block=make_sparse(module=module)
+ options={'optimized_attention_override':override,'patches_replace':{'dit':{'block':block}}}
+ assert compat.selection(options)==(None,patch)
+ hidden={**options,'optimized_attention_override':None}
+ assert compat.selection(hidden)==(None,patch)
+ assert compat.without_owned_blocks(options,patch)['patches_replace']['dit']=={}
+
+@pytest.mark.parametrize('module',['other_sparse_attention','nodes_sparse_attention_fake','/tmp/not_nodes_sparse_attention'])
+def test_similar_unrelated_module_names_are_rejected(module):
+ _,override,block=make_sparse(module=module)
+ with pytest.raises(ValueError):compat.selection({'optimized_attention_override':override,'patches_replace':{'dit':{'block':block}}})
+
+
+def test_actual_comfy_sparse_factories_under_file_loader_name():
+ module='/home/alissonerdx/tools/ComfyUI/comfy_extras/nodes_sparse_attention'
+ fixture=Path(__file__).parent/'fixtures/comfy_sparse_node_factories.py'
+ namespace={'__name__':module}
+ exec(compile(fixture.read_text(),str(fixture),'exec'),namespace)
+ patch=namespace['SparseAttnPatch'](tau=1.3,topk_ratio=0.,vsa=False,sigma_start=1.,sigma_end=0.,min_tokens=12288,dense_blocks=set(),sink_conditioning='exact_kv_and_rows',extra_tokens=256,verbose=False)
+ override=namespace['make_attention_override'](patch,None)
+ block=namespace['make_h3_block_patch'](SimpleNamespace(),0,patch)
+ options={'optimized_attention_override':override,'patches_replace':{'dit':{('double_block',0):block}}}
+ assert compat.selection(options)==(None,patch)
+ assert compat.without_owned_blocks(options,patch)['patches_replace']['dit']=={}
+ assert options['patches_replace']['dit']
@@ -0,0 +1,94 @@
+"""Assemble the shots a BFS Shot Planner run stored on disk into one MP4, one shot at a time (low RAM).
+
+For a run whose final join did not finish (ComfyUI killed, out of memory...). Every shot is stored by BFS Shot Join as
+<run folder>/shot_0000.pt (+ shot_0000.mkv), shot_0001.pt ... already pasted back / uncropped, without its continuity head; this reads
+them in order, trims each to its length, cross-fades joins that are not camera cuts (like BFS Shot Join), and streams
+the frames to ffmpeg, so memory stays at about one shot whatever the video length.
+
+    python bfs_assemble_shots.py <run folder> out.mp4 [--audio source.mp4] [--crossfade 4] [--crf 17]
+
+--audio: the source video; its sound is cut to the stored shots' time range (shot 1's start to the last shot's end).
+Shots that did not run (disabled / filtered) are not stored, so they are not in the output.
+"""
+from __future__ import annotations
+
+import argparse
+import glob
+import os
+import subprocess
+import sys
+
+import torch
+
+
+def main() -> int:
+    ap = argparse.ArgumentParser(description=__doc__, formatter_class=argparse.RawDescriptionHelpFormatter)
+    ap.add_argument("run", help="the run folder with shot_0000.pt ... (ComfyUI output/bfs_shotloop/<run id>; "
+                                "temp/bfs_shotloop/<run id> before 1.104)")
+    ap.add_argument("out", help="output .mp4")
+    ap.add_argument("--audio", help="source video to take the sound from", default="")
+    ap.add_argument("--crossfade", type=int, default=4, help="frames blended at joins that are not cuts (0 = hard)")
+    ap.add_argument("--crf", type=int, default=17)
+    a = ap.parse_args()
+
+    files = sorted(glob.glob(os.path.join(a.run, "shot_*.pt")))
+    if not files:
+        print(f"no shot_*.pt in {a.run}", file=sys.stderr)
+        return 1
+    metas = [torch.load(f, map_location="cpu", weights_only=False)["shot"] for f in files[:1]]
+    m0 = metas[0]
+    count = int(m0.get("count") or len(files))
+    idx = sorted(int(os.path.basename(f)[5:9]) for f in files)
+    missing = [i for i in range(count) if i not in idx]
+    if missing:
+        print(f"warning: shots {[i + 1 for i in missing]} of {count} are not stored; the video skips them", file=sys.stderr)
+    fps = float(m0.get("fps") or 24.0)
+
+    proc, prev_tail, first_start, last_end, n_out = None, None, None, None, 0
+    for f in files:
+        d = torch.load(f, map_location="cpu", weights_only=False)
+        meta = d["shot"]
+        if "frames" in d:                              # raw frames (older runs, Shot storage = raw)
+            frames = d["frames"]                       # uint8 [N, H, W, 3]
+        else:                                          # the frames are in shot_NNNN.mkv next to the .pt
+            n, h, w, _ = d["shape"]
+            raw = subprocess.run(["ffmpeg", "-v", "error", "-i", os.path.join(a.run, d["video"]), "-f", "rawvideo",
+                                  "-pix_fmt", "rgb24", "-"], capture_output=True, check=True).stdout
+            frames = torch.frombuffer(bytearray(raw[:n * h * w * 3]), dtype=torch.uint8).view(n, h, w, 3)
+        L = int(meta["length"])
+        body = frames[:L]
+        if body.shape[0] < L:                          # shorter than planned: hold the last frame
+            body = torch.cat([body, body[-1:].expand(L - body.shape[0], -1, -1, -1)], 0)
+        if proc is None:
+            H, W = int(body.shape[1]), int(body.shape[2])
+            cmd = ["ffmpeg", "-v", "error", "-y", "-f", "rawvideo", "-pix_fmt", "rgb24", "-s", f"{W}x{H}",
+                   "-r", f"{fps:g}", "-i", "-"]
+            if a.audio:
+                t0 = float(meta["start"]) / fps
+                cmd += ["-ss", f"{t0:.4f}", "-i", a.audio, "-map", "0:v", "-map", "1:a?", "-c:a", "aac", "-shortest"]
+            cmd += ["-c:v", "libx264", "-crf", str(a.crf), "-pix_fmt", "yuv420p",
+                    "-vf", "pad=ceil(iw/2)*2:ceil(ih/2)*2", a.out]
+            proc = subprocess.Popen(cmd, stdin=subprocess.PIPE)
+        elif body.shape[1:3] != (H, W):
+            body = torch.nn.functional.interpolate(body.permute(0, 3, 1, 2).float(), size=(H, W), mode="bilinear",
+                                                   align_corners=False).round().clamp(0, 255).byte().permute(0, 2, 3, 1)
+        if a.crossfade > 0 and prev_tail is not None and not meta.get("cut_before"):
+            n = min(a.crossfade, prev_tail.shape[0], body.shape[0])
+            if n > 0:
+                w = torch.linspace(0, 1, n + 2)[1:-1].view(-1, 1, 1, 1)
+                body = body.clone()
+                body[:n] = (prev_tail[:n].float() * (1 - w) + body[:n].float() * w).round().byte()
+        proc.stdin.write(body.contiguous().numpy().tobytes())
+        prev_tail = frames[L:].clone() if frames.shape[0] > L else None
+        first_start = meta["start"] if first_start is None else first_start
+        last_end, n_out = meta["end"], n_out + L
+        print(f"shot {int(meta['index']) + 1}/{count}: {L} frames", flush=True)
+        del d, frames, body
+    proc.stdin.close()
+    proc.wait()
+    print(f"{a.out}: {n_out} frames ({n_out / fps:.2f} s at {fps:g} fps)")
+    return proc.returncode
+
+
+if __name__ == "__main__":
+    sys.exit(main())
@@ -11,9 +11,13 @@
 import { app } from "../../scripts/app.js";
 import { api } from "../../scripts/api.js";
 import { showGuide } from "./bfs_md_view.js";
+import { wheelToCanvas } from "./bfs_wheel.js";
 import { createApp, ref, reactive, computed, watch, nextTick, onMounted, onBeforeUnmount } from "./vendor/vue.esm-browser.prod.mjs";
-import { h, t, uiLanguage, setUiLanguage, DEFAULTS, MASK_DEFAULTS, VLM_DEFAULTS, snapUp, snapDown, segKey, hasMask, pill } from "./shotloop/common.js";
+import { h, rawH, t, uiLanguage, setUiLanguage, DEFAULTS, MASK_DEFAULTS, VLM_DEFAULTS, snapUp, snapDown, segKey, hasMask, pill,
+         MAX_REFS, refList, shotRefNames, MARK_PALETTE, pictureColor, markRegions, AUTO_DEFAULTS } from "./shotloop/common.js";
 import { styles } from "./shotloop/styles.js";
+// history lengths H3's VAE encodes whole (17k+5); old plans saved 17/34/51, read as the next valid one up
+const historyLen = n => (n = Number(n) || 22) <= 5 ? 5 : 5 + Math.ceil((n - 5) / 17) * 17;
 import { timelineCard } from "./shotloop/view_timeline.js";
 import { videoTab } from "./shotloop/view_video.js";
 import { shotsTab } from "./shotloop/view_shots.js";
@@ -33,7 +37,7 @@ const store = {   // per-browser UI conveniences (never the plan itself)
  set: (k, v) => { try { localStorage.setItem(k, JSON.stringify(v)); } catch { /* private mode */ } },
 };
 const DEFAULT_W = 1180, MIN_W = 1040, MIN_H = 1000;   // node size: wide enough for the four-column settings
-const TABS = [["video", "🎞 Video"], ["shots", "🎬 Shots"], ["people", "👥 People & masks"], ["prompts", "📝 Prompts & refs"], ["run", "▶ Run"]];
+const TABS = [["video", "🎞 Video"], ["shots", "🎬 Shots"], ["people", "👥 People / Filters / Masks"], ["prompts", "📝 Prompts & refs"], ["run", "▶ Run"]];

 function Panel(io) {
  const plan = reactive({ ...DEFAULTS });
@@ -54,13 +58,19 @@ function Panel(io) {
  watch(sel, () => nextTick(() => rootEl.value?.querySelector(".shots .sc.sel")?.scrollIntoView({ block: "nearest", inline: "nearest" })));
  const hover = ref(null);       // {frame, x}
  const prog = reactive({ done: 0, count: 0 });
+  const cache = reactive({ ok: [], stored: [], mb: 0, folder: "", temp: false, combined: null });
+  // what the server learned about memory on this GPU (BFS Shot Join records every shot it receives)
+  const vram = reactive({ gpu: "", total_gb: 0, free_gb: 0, max_tokens: 0, max_peak_gb: 0, runs: 0, ram_free_gb: 0 });
+  async function refreshVram() {
+    try { const r = await api.fetchApi("/bfs/shotloop/vram"); const j = await r.json(); if (!j.error) Object.assign(vram, j); } catch { /* optional */ }
+  }
  const tlEl = ref(null);
  const stats = ref([]);         // per-shot content stats from /bfs/shotloop/filters
  const people = ref([]);        // cast from /bfs/shotloop/cast: [{id, thumb, share, first, last}]
  const maskPrev = ref({});      // "start-end" -> {frames, box, coverage, empty} from /bfs/shotloop/mask
  const showMasks = ref(true);   // overlay the mask preview on the shot cards
  const vlmSug = ref({});        // "start-end" -> {segment, shot, people, recommend, reason} from the VLM
-  const modal = reactive({ open: false, idx: -1, key: 0, points: [], text: "", prev: null, busy: "" });
+  const modal = reactive({ open: false, idx: -1, key: 0, points: [], text: "", region: 1, groups: {}, prev: null, busy: "" });
  const segPeople = ref({});     // "start-end" -> {people, main} from /bfs/shotloop/plan
  const targetCrop = ref({});    // "start-end" -> data URL of the subject the description was made from
  const tab = ref(store.get("bfs.shotloop.tab", "shots"));
@@ -71,6 +81,18 @@ function Panel(io) {
                                                              target: false, chain: false, color_guide: false, scope: "all" }));
  watch(copyOpts, v => store.set("bfs.shotloop.copy", { ...v }), { deep: true });

+  // one description per picture: picture_details, plus the ones plans before 1.113 saved per reference set in
+  // ref_details ("a|b" -> {details, details2}, or one text for a); same rule as bfs_shot_loop.saved_picture_details
+  const pictureDetailsOf = p => {
+    const out = {};
+    Object.entries(p.ref_details || {}).forEach(([key, v]) => {
+      const [a, b] = key.split("|");
+      const pairs = v && typeof v === "object" ? [[a, v.details || v.legacy], [b, v.details2]] : [[a, v]];
+      pairs.forEach(([name, text]) => { if (name && text && !(name in out)) out[name] = String(text); });
+    });
+    Object.entries(p.picture_details || {}).forEach(([name, text]) => { if (text) out[name] = text; });
+    return out;
+  };
  const load = () => {
    let p = {};
    try { p = JSON.parse(io.getPlan() || "{}"); } catch { p = {}; }
@@ -80,10 +102,34 @@ function Panel(io) {
    plan.mask_cfg = { ...MASK_DEFAULTS, ...(p.mask_cfg || {}) };
    plan.vlm_cfg = { ...VLM_DEFAULTS, ...(p.vlm_cfg || {}) };
    plan.ref_details = { ...(p.ref_details || {}) };
+    plan.picture_details = { ...pictureDetailsOf(p) };
+    plan.picture_cfg = { ...(p.picture_cfg || {}) };
+    plan.auto_prompt = { ...AUTO_DEFAULTS, ...(p.auto_prompt || {}) };
+    plan.auto_prompts = { ...(p.auto_prompts || {}) };
    if (!Array.isArray(plan.bounds)) plan.bounds = [];
    if (!Array.isArray(plan.segs)) plan.segs = [];
+    // plans before 1.113 had two references (ref / ref2): now a list of up to MAX_REFS pictures
+    plan.global_refs = refList(p.global_refs, p.global_ref, p.global_ref2);
+    plan.segs.forEach(m => { if (m) m.refs = refList(m.refs, m.ref, m.ref2); });
+    // Colored Mark: a color per picture (was: two marker colors), regions tied to a picture (was: region 2)
+    if (!Array.isArray(p.picture_colors)) plan.picture_colors = [p.global_color_guide_ref1 || MARK_PALETTE[0][0], p.global_color_guide_ref2 || MARK_PALETTE[1][0]];
+    plan.segs.forEach(m => {
+      if (!m) return;
+      m.color_guide_regions = markRegions(m);
+      ["color_guide_text2", "color_guide_points2", "color_guide_key2", "color_guide_color", "color_guide_color2"].forEach(k => delete m[k]);
+    });
+    Object.values(plan.cast).forEach(person => { if (person && typeof person === "object") { delete person.ref; delete person.ref2; delete person.guide_color; } });
+    plan.segs.forEach(meta => { if (meta) { delete meta.color_guide_person; delete meta.color_guide_person2; } });
  };
-  const save = () => io.setPlan(JSON.stringify(plan));
+  // any change of the plan (a new video, a prompt, a setting...) is a new loop run on the server: show its progress
+  let progTimer = 0;
+  // ref / ref2 (and global_ref / global_ref2) keep pictures 1 and 2 for older readers of the plan
+  const syncRefs = () => {
+    plan.global_refs = refList(plan.global_refs); [plan.global_ref = "", plan.global_ref2 = ""] = plan.global_refs;
+    plan.global_color_guide_ref1 = pictureColor(plan, 1); plan.global_color_guide_ref2 = pictureColor(plan, 2);
+    plan.segs.forEach(m => { if (m) { m.refs = refList(m.refs); [m.ref = "", m.ref2 = ""] = m.refs; } });
+  };
+  const save = () => { syncRefs(); io.setPlan(JSON.stringify(plan)); clearTimeout(progTimer); progTimer = setTimeout(() => progress(), 400); };

  const n = computed(() => (an.value ? an.value.n : 0));      // the whole video on the timeline
  // the part the plan works on [lo, hi): start / end (0 = the end), then "max total seconds" counted from the start
@@ -108,23 +154,27 @@ function Panel(io) {
      if (b[i + 1] <= b[i]) continue;
      const m = plan.segs[out.length] || {};
      out.push({ start: b[i], end: b[i + 1], len: b[i + 1] - b[i], gen: snapUp(b[i + 1] - b[i], plan.grid),
-                 cut: cs.has(b[i]), enabled: m.enabled !== false, ref: m.ref || "", ref2: m.ref2 || "", prompt: m.prompt || "",
-                 force: m.force || "auto", chain: m.chain || "history", chainFrame: m.chain_frame || "first", chainHistory: m.chain_history || 17,
+                 cut: cs.has(b[i]), enabled: m.enabled !== false, refs: refList(m.refs, m.ref, m.ref2), prompt: m.prompt || "",
+                 force: m.force || "auto", chain: m.chain || "head", chainFrame: m.chain_frame || "first", chainHistory: historyLen(m.chain_history),
+                 color_guide: !!m.color_guide, color_guide_picture: +m.color_guide_picture || 1,
+                 color_guide_opacity: m.color_guide_opacity ?? 0.35, regions: markRegions(m),
                 crop: !!m.crop, inpaint: !!m.inpaint, paste: !!m.paste, pasteText: m.paste_text || "", strength: m.strength ?? 1, mask: m.mask || {}, target: m.target || "",
                 extMask: !!plan.mask_video || !!(plan.track?.points?.length), trackMask: !!(plan.track?.points?.length) });
    }
+    out.forEach(s => { s.names = shotRefNames(s.refs, plan.global_refs); [s.ref = "", s.ref2 = ""] = s.refs; });
    if (plan.max_parts > 0) out = out.slice(0, plan.max_parts);
    return out;
  });
+  // shots on the timeline before "Max shots" keeps the first ones: more than segs means some are left out
+  const allSegCount = computed(() => {
+    if (!n.value) return 0;
+    const { lo, hi } = range.value;
+    const b = [lo, ...plan.bounds.filter(x => x > lo && x < hi), hi].sort((a, c) => a - c);
+    return b.reduce((k, x, i) => k + (i && x > b[i - 1] ? 1 : 0), 0);
+  });
  const whoIn = s => segPeople.value[segKey(s)] || null;
  const castOf = id => plan.cast[String(id)] || {};
-  const linked = id => !!castOf(id).ref && !castOf(id).ignore;
-  // reference a shot gets from its main person when it has none of its own
-  const castRef = (s, field) => {
-    if (!plan.cast_assign) return "";
-    const who = whoIn(s); if (!who || who.main < 0 || castOf(who.main).ignore) return "";
-    return castOf(who.main)[field] || "";
-  };
+  const included = id => !!personOf(id) && !castOf(id).ignore;
  const personOf = id => people.value.find(p => p.id === id) || null;
  const statFor = s => stats.value.find(x => x.start === s.start && x.end === s.end) || null;
  const filtersOn = computed(() => { const f = plan.filters; return !!(f.person || f.face || f.skip_dark || f.skip_static || f.max_persons > 0 || f.min_frames > 0); });
@@ -135,7 +185,7 @@ function Panel(io) {
    const why = filtersOn.value ? (statFor(s)?.skip_reason || "") : "";
    if (why) return why;
    const who = whoIn(s);
-    if (plan.cast_only && who && !who.people.some(p => linked(p))) return "no linked person";
+    if (plan.cast_only && who && !who.people.some(p => included(p))) return "no detected person";
    return "";
  };
  const active = computed(() => segs.value.filter(s => !skipWhy(s)));
@@ -155,14 +205,49 @@ const modeOf = s => (MODES.find(m => m[2] === !!s.crop && m[3] === !!s.inpaint &
 const modeName = s => MODES.find(m => m[0] === modeOf(s))[1];

 const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return plan.segs[i]; };
-  // the reference a shot really uses: its own, its main person's, or the global one
-  const refOf = (s, k) => s[k] || castRef(s, k) || plan["global_" + k] || "";
+  // the pictures a shot uses: "ref" = <Picture 1>, "ref2" = <Picture 2> (its own or the global ones)
+  const refOf = (s, k) => s.names[k === "ref2" ? 1 : 0] || "";
  const promptOf = s => s.prompt || plan.global_prompt || "";
-  const detailsOf = s => plan.ref_details?.[`${refOf(s, "ref")}|${refOf(s, "ref2")}`] || "";
+  // the pictures a prompt describes ({details} = 1, {details2} = 2, {details@Picture n}) all have a description
+  const detailsOf = (s, prompt) => {
+    const want = new Set();
+    if (prompt.includes("{details}")) want.add(1);
+    if (prompt.includes("{details2}")) want.add(2);
+    for (const m of prompt.matchAll(/\{details@Picture\s*(\d+)\}/g)) want.add(+m[1]);
+    return [...want].every(k => !s.names[k - 1] || plan.picture_details?.[s.names[k - 1]]);
+  };

  // things worth fixing before a run, per shot (only shots that run)
+  // ---- memory status: each shot's size (latent tokens = generated frames x resolution) against the biggest shot that
+  // already ran on this GPU. Not a GB figure: ComfyUI offloads weights as needed, so only what ran here is a reference.
+  const H3G = "H3 (17n+5)";
+  const headOf = (s, i) => plan.run !== "auto" && s.chain === "head" && i > 0 && !s.cut && (plan.grid || H3G) === H3G
+    ? Math.min(s.chainHistory || 22, 39) : 0;
+  const shotTokens = (s, i) => {
+    const hd = headOf(s, i), gen = hd ? snapUp(s.len + hd, plan.grid) : s.gen;
+    const steps = (plan.grid || H3G) === H3G ? 5 * Math.ceil(gen / 17) - 3 : Math.ceil(gen / 4);
+    return Math.max(1, steps) * Math.ceil((size.h || 0) / 16) * Math.ceil((size.w || 0) / 16);
+  };
+  const memory = computed(() => {
+    const list = segs.value.map((s, i) => ({ i, tok: skipWhy(s) ? 0 : shotTokens(s, i), gen: s.gen + headOf(s, i) })).filter(x => x.tok > 0);
+    const top = list.reduce((a, b) => (b.tok > a.tok ? b : a), { i: -1, tok: 0, gen: 0 });
+    const ratio = vram.max_tokens ? top.tok / vram.max_tokens : 0;
+    const level = !top.tok || !size.w ? "" : !vram.max_tokens ? "info" : ratio <= 1.05 ? "ok" : ratio <= 1.3 ? "note" : "warn";
+    return { list, top, ratio, level };
+  });
+  // the final video as images (BFS Shot Join, save_to = images) is held in RAM whole: about 12 bytes per pixel per frame,
+  // ~3.5x more with the comparison. Long videos should be written straight to a file instead.
+  const joinRam = computed(() => {
+    const frames = segs.value.reduce((t, s) => t + (skipWhy(s) && plan.skip_fill === "drop" ? 0 : s.len), 0);
+    const gb = frames * (size.w || 0) * (size.h || 0) * 12 / 2 ** 30;
+    return { frames, gb, long: vram.ram_free_gb > 0 && gb * 3.5 > 0.6 * vram.ram_free_gb };
+  });
  const checks = computed(() => {
    const out = [];
+    if (joinRam.value.long && active.value.length)
+      out.push({ lvl: "warn", shot: 0, text: `long video: as images the final video needs ~${joinRam.value.gb.toFixed(1)} GB of RAM `
+        + `(~${(joinRam.value.gb * 3.5).toFixed(1)} GB with the comparison) and ${vram.ram_free_gb} GB is free. Set BFS Shot Join `
+        + `save_to = mp4 file: it writes the video straight to disk, shows it on the node and still gives the result to the next nodes` });
    segs.value.forEach((s, i) => {
      if (skipWhy(s)) return;
      const add = (lvl, text) => out.push({ lvl, shot: i, text });
@@ -173,11 +258,15 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
      if ((s.crop || s.inpaint || s.paste) && !hasMask(s)) add("warn", `${modeName(s)} needs a mask (text, points or a mask video; or the planner's mask input)`);
      if (hasMask(s) && maskPrev.value[segKey(s)]?.empty) add("warn", "the mask preview found nothing");
      if (/\{target\}/.test(p) && !s.target) add("warn", "the prompt uses {target} but the shot has no target description");
-      if (/\{details\}/.test(p) && !detailsOf(s) && !plan.vlm_cfg?.enabled) add("info", "the prompt uses {details} but its references have no description yet");
-      if (/\{details\}/.test(p) && (plan.vlm_cfg?.describe_preset || "short") !== "short")
+      if (/\{details/.test(p) && !detailsOf(s, p) && !plan.vlm_cfg?.enabled) add("info", "the prompt uses {details} but its pictures have no description yet");
+      if (/\{details2?\}/.test(p) && (plan.vlm_cfg?.describe_preset || "short") !== "short")
        add("warn", "{details} sits inside a sentence of the prompt: use the 'short' describe preset (Prompts & refs), the other presets write a paragraph");
      if (!p) add("info", "no prompt (fine when the node's prompt input is connected)");
-      if (!refOf(s, "ref")) add("info", "no reference (fine when the node's ref_image input is connected)");
+      if (!refOf(s, "ref")) add("info", "no reference picture");
+      if (vram.max_tokens && shotTokens(s, i) > 1.3 * vram.max_tokens)
+        add("warn", "much bigger than any shot that ran on this GPU (over 1.3×): it may run out of memory. Lower Megapixels or Max seconds / shot, use head 5, or set Between shots = free memory (Run tab)");
+      if (i > 0 && plan.run === "auto" && (s.chain === "head" || s.chain === "history") && !s.cut)
+        add("warn", `continuity '${s.chain}' does not work in the auto loop (the previous result does not exist yet): use Run = one run, shot by shot`);
    });
    return out;
  });
@@ -205,7 +294,9 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
    if (!plan.video) return;
    busy.value = "Detecting cuts…"; error.value = "";
    try {
-      const body = { plan: { ...plan, bounds: apply ? [] : plan.bounds } };
+      // every detected boundary is kept (Max shots only picks how many shots run): asked for without the limit, the
+      // last kept shot would otherwise have no end and run to the end of the range
+      const body = { plan: { ...plan, bounds: apply ? [] : plan.bounds, max_parts: apply ? 0 : plan.max_parts } };
      const r = await api.fetchApi("/bfs/shotloop/plan", { method: "POST", body: JSON.stringify(body) });
      const j = await r.json();
      if (j.error) throw new Error(j.error);
@@ -214,12 +305,11 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
        .map(s => [`${s.start}-${s.end}`, { people: s.people, main: s.main }]));
      if (apply) {
        plan.bounds = j.segs.slice(1).map(s => s.start);
-        const keep = plan.segs; plan.segs = j.segs.map((_, i) => ({ enabled: true, ref: keep[i]?.ref || "", ref2: keep[i]?.ref2 || "", prompt: keep[i]?.prompt || "",
-          chain: keep[i]?.chain || "history", chain_frame: keep[i]?.chain_frame || "first", chain_history: keep[i]?.chain_history || 17,
+        const keep = plan.segs; plan.segs = j.segs.map((_, i) => ({ enabled: true, refs: refList(keep[i]?.refs), prompt: keep[i]?.prompt || "",
+          chain: keep[i]?.chain || "head", chain_frame: keep[i]?.chain_frame || "first", chain_history: historyLen(keep[i]?.chain_history),
          crop: !!keep[i]?.crop, inpaint: !!keep[i]?.inpaint, paste: !!keep[i]?.paste, paste_text: keep[i]?.paste_text || "", strength: keep[i]?.strength ?? 1, mask: keep[i]?.mask || {}, target: keep[i]?.target || "",
-          color_guide: !!keep[i]?.color_guide, color_guide_color: keep[i]?.color_guide_color || "", color_guide_opacity: keep[i]?.color_guide_opacity ?? 0.35,
-          color_guide_person: keep[i]?.color_guide_person ?? null, color_guide_text2: keep[i]?.color_guide_text2 || "",
-          color_guide_color2: keep[i]?.color_guide_color2 || "", color_guide_person2: keep[i]?.color_guide_person2 ?? null }));
+          color_guide: !!keep[i]?.color_guide, color_guide_picture: keep[i]?.color_guide_picture || 1, color_guide_opacity: keep[i]?.color_guide_opacity ?? 0.35,
+          color_guide_regions: (keep[i]?.color_guide_regions || []).map(r => ({ ...r })) }));
        sel.value = 0; save();
      }
    } catch (e) { error.value = String(e.message || e); }
@@ -248,7 +338,6 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
  }
  const setCast = (id, k, v) => {
    plan.cast = { ...plan.cast, [String(id)]: { ...castOf(id), [k]: v } };
-    if (k === "ref" || k === "ref2") remember(v);
    save();
  };
  async function describeTarget(i) {
@@ -282,13 +371,56 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
    if (s && maskPrev.value[segKey(s)]) { const mp = { ...maskPrev.value }; delete mp[segKey(s)]; maskPrev.value = mp; }
  };
  const setMaskCfg = (k, v) => { plan.mask_cfg = { ...plan.mask_cfg, [k]: v }; save(); maskPrev.value = {}; };
-  const openPoints = i => {
+  // Colored Mark regions in the points window: 1 = the shot's own selection (its mask), 2.. = its extra regions
+  const openPoints = (i, region = 1) => {
    const s = segs.value[i]; if (!s) return;
-    Object.assign(modal, { open: true, idx: i, key: s.mask.key ?? Math.floor(s.len / 2), points: [...(s.mask.points || [])],
-                           text: s.mask.text || "", prev: null, busy: "" });
+    const g1 = { key: s.mask.key ?? Math.floor(s.len / 2), points: [...(s.mask.points || [])], text: s.mask.text || "" };
+    const groups = { 1: g1 };
+    if (s.color_guide) s.regions.forEach((r, j) => { groups[j + 2] = { key: r.key ?? g1.key, points: [...(r.points || [])], text: r.text || "" }; });
+    const g = groups[region] || g1;
+    Object.assign(modal, { open: true, idx: i, region: groups[region] ? region : 1, groups, key: g.key, points: [...g.points],
+      text: g.text, prev: null, busy: "" });
+  };
+  const switchPointRegion = region => {
+    modal.groups[modal.region] = { key: modal.key, points: [...modal.points], text: modal.text };
+    const next = modal.groups[region] || { key: modal.key, points: [], text: "" };
+    modal.region = region; modal.points = [...next.points]; modal.text = next.text; modal.prev = null;
+  };
+  const commitPointGroups = i => {
+    modal.groups[modal.region] = { key: modal.key, points: [...modal.points], text: modal.text };
+    const m = meta(i), g1 = modal.groups[1];
+    m.mask = { ...(m.mask || {}), points: [...g1.points], key: g1.key, text: g1.text };
+    if (segs.value[i]?.color_guide) {
+      m.color_guide_regions = markRegions(m).map((r, j) => {
+        const g = modal.groups[j + 2];
+        return g ? { ...r, points: [...g.points], key: g.key, text: g.text } : r;
+      });
+    }
+  };
+  // the picture a region becomes (region 1 = the shot's own selection) and the extra regions
+  const setMarkPicture = (i, region, k) => {
+    const m = meta(i);
+    if (region === 1) m.color_guide_picture = k;
+    else m.color_guide_regions = markRegions(m).map((r, j) => (j === region - 2 ? { ...r, picture: k } : r));
+    save();
+  };
+  const addMarkRegion = i => {
+    const m = meta(i), used = new Set([+m.color_guide_picture || 1, ...markRegions(m).map(r => r.picture)]);
+    const n = Math.max(2, segs.value[i]?.names.length || 0);
+    let k = 1; while (used.has(k) && k < n) k++;
+    m.color_guide_regions = [...markRegions(m), { picture: k, text: "", points: [], key: 0 }]; save();
+  };
+  const setMarkRegion = (i, j, field, v) => {
+    const m = meta(i); m.color_guide_regions = markRegions(m).map((r, q) => (q === j ? { ...r, [field]: v } : r)); save();
+  };
+  const removeMarkRegion = i => j => { const m = meta(i); m.color_guide_regions = markRegions(m).filter((_, q) => q !== j); save(); };
+  const setPictureColor = (k, color) => {
+    const list = [...(plan.picture_colors || [])];
+    while (list.length < k) list.push(pictureColor(plan, list.length + 1));
+    list[k - 1] = color; plan.picture_colors = list; save();
  };
  const savePoints = () => {
-    const m = meta(modal.idx); m.mask = { ...(m.mask || {}), points: modal.points, key: modal.key, text: modal.text }; save();
+    const i = modal.idx; commitPointGroups(i); save();
    if (modal.prev) maskPrev.value = { ...maskPrev.value, [segKey(segs.value[modal.idx])]: modal.prev };
    modal.open = false;
  };
@@ -303,7 +435,11 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
    });
    maskPrev.value = {}; save();
  };
-  const savePointsAll = () => { pointsTo(modal.points, modal.key, modal.text, modal.idx); modal.open = false; };
+  const savePointsAll = () => {
+    if (segs.value[modal.idx]?.color_guide) { commitPointGroups(modal.idx); save(); }
+    else pointsTo(modal.points, modal.key, modal.text, modal.idx);
+    modal.open = false;
+  };
  // one selection tracked by SAM 3 through the whole video (or range): every shot without its own selection takes its
  // part of that track, so the subject is found wherever it moves (copied points can fall on the background)
  const saveTrack = () => {
@@ -321,30 +457,30 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
  };
  const clearTrack = () => { plan.track = null; maskPrev.value = {}; save(); };
  const clearMask = i => {
-    const m = meta(i); m.mask = {}; m.crop = false; m.inpaint = false; m.paste = false;
+    const m = meta(i); m.mask = {}; m.color_guide_regions = [];
+    m.crop = false; m.inpaint = false; m.paste = false;
    const k = segs.value[i] ? segKey(segs.value[i]) : null;
    if (k) { const mp = { ...maskPrev.value }; delete mp[k]; maskPrev.value = mp; }
    save();
  };
  // copy the chosen settings of shot `from` to the other shots (all of them, or the ones after it)
  const COPY_FIELDS = { ref: "references", prompt: "prompt", mask_text: "mask text", points: "mask points", mask_video: "mask video", crop: "mode",
-                        target: "{target}", chain: "continuity", color_guide: "Color Guide" };
+                        target: "{target}", chain: "continuity", color_guide: "Colored Mark" };
  const copyFrom = (from, fields = copyOpts, scope = copyOpts.scope) => {
    const src = segs.value[from]; if (!src) return 0;
    const to = targets(scope, from);
    to.forEach(i => {
      const m = meta(i), x = segs.value[i];
-      if (fields.ref) { m.ref = src.ref; m.ref2 = src.ref2; }
+      if (fields.ref) m.refs = [...src.refs];
      if (fields.prompt) m.prompt = src.prompt;
      if (fields.mask_text) m.mask = { ...(m.mask || {}), text: src.mask.text || "" };
      if (fields.mask_video) m.mask = { ...(m.mask || {}), video: src.mask.video || "" };
      if (fields.crop && (hasMask(x) || src.mask.text || fields.mask_text)) { m.crop = src.crop; m.inpaint = src.inpaint; m.paste = src.paste; m.paste_text = src.pasteText; m.strength = src.strength; }
      if (fields.target) m.target = src.target;
      if (fields.color_guide) {
-        m.color_guide = src.color_guide; m.color_guide_color = src.color_guide_color;
-        m.color_guide_opacity = src.color_guide_opacity; m.color_guide_person = src.color_guide_person;
-        m.color_guide_text2 = src.color_guide_text2; m.color_guide_color2 = src.color_guide_color2;
-        m.color_guide_person2 = src.color_guide_person2;
+        m.color_guide = src.color_guide; m.color_guide_picture = src.color_guide_picture;
+        m.color_guide_opacity = src.color_guide_opacity;
+        m.color_guide_regions = src.regions.map(r => ({ ...r, points: [...(r.points || [])] }));
      }
      if (fields.chain && i > 0) { m.chain = src.chain; m.chain_frame = src.chainFrame; m.chain_history = src.chainHistory; }
    });
@@ -363,26 +499,55 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
    } catch (e) { error.value = String(e.message || e); }
    busy.value = "";
  }
-  // reference sets used by the plan (global, every shot's, every cast person's): one description each
-  const refSets = computed(() => {
+  // reference sets used by the plan (global and per shot): one description each
+  // every picture the plan uses, once, with where it is <Picture n>: one description each ({details@Picture n})
+  const pictures = computed(() => {
    const out = new Map();
-    const add = (a, b, where) => { if (!a && !b) return; const k = `${a || ""}|${b || ""}`; if (!out.has(k)) out.set(k, { a, b, where: [] }); out.get(k).where.push(where); };
-    add(plan.global_ref, plan.global_ref2, "global");
-    segs.value.forEach((x, i) => add(x.ref || plan.global_ref, x.ref2 || plan.global_ref2, `#${i + 1}`));
-    Object.entries(plan.cast || {}).forEach(([id, c]) => { if (!c.ignore) add(c.ref, c.ref2, `person ${id}`); });
-    return [...out.entries()].map(([key, v]) => ({ key, ...v }));
+    const add = (name, where) => { if (!name) return; if (!out.has(name)) out.set(name, []); out.get(name).push(where); };
+    plan.global_refs.forEach((x, k) => add(x, `global ${k + 1}`));
+    segs.value.forEach((x, i) => x.names.forEach((name, k) => { if (x.refs[k] === name) add(name, `#${i + 1}: ${k + 1}`); }));
+    return [...out.entries()].map(([name, where]) => ({ name, where }));
  });
-  async function describeRefs() {
-    busy.value = "Describing the references with the VLM…"; error.value = "";
+  // names: the pictures to describe (all of them by default)
+  async function describePictures(names = pictures.value.map(x => x.name)) {
+    busy.value = "Describing the pictures with the VLM…"; error.value = "";
    try {
-      const sets = refSets.value.map(x => [x.a || "", x.b || ""]);
-      const r = await api.fetchApi("/bfs/shotloop/describe", { method: "POST", body: JSON.stringify({ plan: { ...plan }, sets }) });
+      const r = await api.fetchApi("/bfs/shotloop/describe", { method: "POST",
+        body: JSON.stringify({ plan: { ...plan }, pictures: names }) });
      const j = await r.json(); if (j.error) throw new Error(j.error);
-      plan.ref_details = { ...plan.ref_details, ...j.texts }; save();
+      plan.picture_details = { ...plan.picture_details, ...j.pictures }; save();
    } catch (e) { error.value = String(e.message || e); }
    busy.value = "";
  }
-  const setDetail = (k, v) => { plan.ref_details = { ...plan.ref_details, [k]: v }; save(); };
+  const setPictureDetail = (name, v) => { plan.picture_details = { ...plan.picture_details, [name]: v }; save(); };
+  // a picture's own describe preset ("" = the card's) and custom instruction
+  // 🤖 Auto prompt: what a shot's written prompt was made from (same string as bfs_shot_loop.auto_prompt_for), so the
+  // panel shows when the request, pictures, marks or mode changed after it was written
+  const autoFor = s => {
+    const marks = s.color_guide ? [[s.color_guide_picture, pictureColor(plan, s.color_guide_picture)],
+      ...s.regions.filter(r => String(r.text || "").trim() || (r.points || []).length).map(r => [r.picture, pictureColor(plan, r.picture)])] : [];
+    return JSON.stringify([s.prompt || plan.global_prompt || "", s.names, marks, modeOf(s), s.mask?.text || "", s.target || "",
+      plan.auto_prompt?.template || "", plan.auto_prompt?.style || "h3", plan.auto_prompt?.trigger ?? "motion_transfer", "motion-trigger-bindings-v7"]);
+  };
+  const writtenOf = s => plan.auto_prompts?.[segKey(s)] || null;
+  const setAuto = (k, v) => { plan.auto_prompt = { ...plan.auto_prompt, [k]: v }; save(); };
+  const setWritten = (s, text) => {
+    const k = segKey(s), cur = plan.auto_prompts[k] || {};
+    plan.auto_prompts = { ...plan.auto_prompts, [k]: { ...cur, text, for: cur.for ?? autoFor(s) } }; save();
+  };
+  // the VLM writes the prompts of these shots (all by default)
+  async function writePrompts(indices = segs.value.map((_, i) => i)) {
+    busy.value = `Writing ${indices.length} prompt(s) with the VLM…`; error.value = "";
+    try {
+      const r = await api.fetchApi("/bfs/shotloop/autoprompt", { method: "POST", body: JSON.stringify({ plan: { ...plan }, indices }) });
+      const j = await r.json(); if (j.error) throw new Error(j.error);
+      plan.auto_prompts = { ...plan.auto_prompts, ...j.prompts }; save();
+    } catch (e) { error.value = String(e.message || e); }
+    busy.value = "";
+  }
+  const setPictureCfg = (name, k, v) => {
+    plan.picture_cfg = { ...plan.picture_cfg, [name]: { ...(plan.picture_cfg[name] || {}), [k]: v } }; save();
+  };
  const setVlmCfg = (k, v) => { plan.vlm_cfg = { ...plan.vlm_cfg, [k]: v }; save(); };
  const applySug = (i, what) => {
    const s = segs.value[i], g = s && vlmSug.value[segKey(s)]; if (!g) return;
@@ -455,13 +620,44 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
    const inp = document.createElement("input"); inp.type = "file"; inp.accept = accept;
    inp.onchange = () => inp.files[0] && upload(inp.files[0], cb); inp.click();
  };
+  // several files: uploaded one after the other, cb gets the names in order
+  const uploadAll = async (files, cb) => {
+    const names = [];
+    for (const f of files) await upload(f, name => names.push(name));
+    if (names.length) cb(names);
+  };
+  const pickFiles = (accept, cb) => {
+    const inp = document.createElement("input"); inp.type = "file"; inp.accept = accept; inp.multiple = true;
+    inp.onchange = () => uploadAll([...inp.files], cb); inp.click();
+  };
  async function progress(reset = false) {
-    if (!plan.video || plan.run !== "queue") return;
+    if (!plan.video || plan.run === "auto") { prog.done = 0; prog.count = 0; Object.assign(cache, { ok: [], stored: [], mb: 0 }); return; }
    try {
      const r = await api.fetchApi("/bfs/shotloop/progress", { method: "POST", body: JSON.stringify({ plan: { ...plan }, plan_raw: io.getPlan(), reset }) });
-      const j = await r.json(); if (!j.error) { prog.done = j.done; prog.count = j.count || active.value.length; }
+      const j = await r.json();
+      if (!j.error) { prog.done = j.done; prog.count = j.count || active.value.length; Object.assign(cache, j); }
    } catch { /* ignore */ }
  }
+  // ---- stored shots: redo some, or combine what is stored into an MP4 (low memory, on the server)
+  async function redo(shots, cascade = true, cancel = false) {
+    try {
+      const r = await api.fetchApi("/bfs/shotloop/redo", { method: "POST", body: JSON.stringify({ plan: { ...plan }, shots, cascade, cancel }) });
+      const j = await r.json(); if (j.error) error.value = j.error; else { Object.assign(cache, j); prog.done = j.done; }
+    } catch (e) { error.value = `${e}`; }
+  }
+  async function combine() {
+    busy.value = "Combining the stored shots into an MP4";
+    try {
+      const r = await api.fetchApi("/bfs/shotloop/combine", { method: "POST", body: JSON.stringify({ plan: { ...plan },
+        crossfade: plan.combine_crossfade ?? 4, crf: plan.combine_crf ?? 17 }) });
+      const j = await r.json();
+      if (j.error) error.value = j.error;
+      else cache.combined = { ...j, url: api.apiURL(`/view?filename=${encodeURIComponent(j.filename)}&subfolder=${encodeURIComponent(j.subfolder)}&type=output`) };
+    } catch (e) { error.value = `${e}`; }
+    busy.value = "";
+  }
+  // a shot of the panel (any, skipped ones too) -> its cache state: "ok" stored and up to date, "run" runs next time
+  const cacheOf = s => { const k = active.value.indexOf(s); return k < 0 || !cache.ok.length ? "" : cache.ok[k] ? "ok" : "run"; };

  // ---- editing
  const setVideo = v => {
@@ -481,6 +677,8 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
    const { lo, hi } = range.value; f = Math.round(f);
    if (f <= lo || f >= hi || plan.bounds.includes(f)) return;
    const i = segs.value.findIndex(s => f > s.start && f < s.end);
+    // a split you make by hand always shows: "Max shots" (e.g. 1 in a one-shot workflow) only limits detected shots
+    if (plan.max_parts > 0 && allSegCount.value >= plan.max_parts) plan.max_parts = allSegCount.value + 1;
    plan.bounds = [...plan.bounds, f].sort((a, c) => a - c);
    plan.segs.splice(i + 1, 0, { ...(plan.segs[i] || {}) });
    sel.value = i + 1; save();
@@ -564,22 +762,53 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
  const seek = f => { const v = vid.value; if (v) { v.currentTime = f / plan.fps + 1e-3; play.frame = f; } };

  // ---- queue loop events
-  const onProg = e => { prog.done = e.detail.done; prog.count = e.detail.count; };
+  const onProg = e => { prog.done = e.detail.done; prog.count = e.detail.count; refreshVram(); };
  const onStatus = e => { if (busy.value || modal.busy) Object.assign(status, e.detail || {}); };
  let clock = 0;
  const onVlm = e => { if (e.detail?.video === plan.video) mergeSug(e.detail.segs); };
+  // prompts the planner's VLM wrote while running (shots that had none): kept in the plan, so they stay the same
+  const onAutoPrompt = e => {
+    const d = e.detail; if (d?.video !== plan.video) return;
+    const tpl = typeof d.template === "string" && d.template !== (plan.auto_prompt.template || "");
+    if (tpl) plan.auto_prompt = { ...plan.auto_prompt, template: d.template };   // the prompt input of the last run
+    if (tpl || Object.keys(d.prompts || {}).length) { plan.auto_prompts = { ...plan.auto_prompts, ...(d.prompts || {}) }; save(); }
+  };
  const onNext = e => { onProg(e); if (plan.run === "queue" && plan.auto_continue) setTimeout(() => app.queuePrompt(0, 1), 300); };
  onMounted(() => {
-    load(); refreshFiles(); analyze(); progress(); raf = requestAnimationFrame(loop);
+    load(); refreshFiles(); analyze(); progress(); refreshVram(); raf = requestAnimationFrame(loop);
    if (!plan.video) tab.value = "video";
    api.addEventListener("bfs-shotloop-progress", onProg); api.addEventListener("bfs-shotloop-next", onNext);
    api.addEventListener("bfs-shotloop-vlm", onVlm);
+    api.addEventListener("bfs-shotloop-autoprompt", onAutoPrompt);
    api.addEventListener("bfs-shotloop-status", onStatus);
    clock = setInterval(() => { if (busy.value || modal.busy) now.value = Date.now(); }, 500);
  });
-  onBeforeUnmount(() => { cancelAnimationFrame(raf); api.removeEventListener("bfs-shotloop-progress", onProg); api.removeEventListener("bfs-shotloop-next", onNext); api.removeEventListener("bfs-shotloop-vlm", onVlm); api.removeEventListener("bfs-shotloop-status", onStatus); clearInterval(clock); });
+  onBeforeUnmount(() => { cancelAnimationFrame(raf); api.removeEventListener("bfs-shotloop-progress", onProg); api.removeEventListener("bfs-shotloop-next", onNext); api.removeEventListener("bfs-shotloop-vlm", onVlm); api.removeEventListener("bfs-shotloop-autoprompt", onAutoPrompt); api.removeEventListener("bfs-shotloop-status", onStatus); clearInterval(clock); });
  io.expose({ reload: () => { load(); analyze(); progress(); } });

+  // 🧠 the memory status at the top: the plan's biggest shot against the biggest one that ran on this GPU
+  const kTok = n => (n >= 1000 ? `${(n / 1000).toFixed(n >= 100000 ? 0 : 1)}k` : `${n}`);
+  function memTip(m) {
+    const gpu = vram.gpu ? `${vram.gpu} · ${vram.total_gb} GB (${vram.free_gb} GB free now)` : "no CUDA GPU seen by the server";
+    const top = m.top.i >= 0 ? `Biggest shot in this plan: #${m.top.i + 1}, ${m.top.gen} frames at ${size.w}×${size.h} = ${kTok(m.top.tok)} tokens` : "";
+    const ref = vram.max_tokens
+      ? `Biggest shot that ran on this GPU: ${kTok(vram.max_tokens)} tokens, peak ${vram.max_peak_gb} GB (${vram.runs} run(s) recorded)`
+      : "No shot has run on this GPU yet: after the first one, this status compares every shot with what already ran here.";
+    const say = { ok: "✓ Every shot is within what already ran on this GPU.",
+      note: "A bit bigger than anything that ran here: it will probably fit (ComfyUI offloads weights), maybe slower.",
+      warn: "⚠ Much bigger than anything that ran here: it may run out of memory. Lower Megapixels or Max seconds / shot, use head 5, or set Between shots = free memory (Run tab).",
+      info: "" }[m.level];
+    return [gpu, top, ref, say, "Size = generated frames (with the continuity head) × resolution; skipped shots are not counted."].filter(Boolean).join("\n");
+  }
+  function memPill() {
+    const m = memory.value;
+    if (!m.level) return null;
+    const text = { ok: "🧠 memory ✓", note: `🧠 ${m.ratio.toFixed(2)}× biggest run`, warn: `🧠 ⚠ ${m.ratio.toFixed(1)}× biggest run · may OOM`,
+      info: "🧠 no memory data yet" }[m.level];
+    return h("span", { class: ["pill", { ok: "ok", warn: "warn" }[m.level] || ""], style: "cursor:pointer", title: memTip(m),
+      onClick: () => { tab.value = "run"; refreshVram(); } }, text);
+  }
+
  // ---- references
  // the last 10 references picked, remembered across workflows (per browser)
  const RECENT_KEY = "bfs.shotloop.recentRefs";
@@ -592,25 +821,46 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
    recent.value = [name, ...recent.value.filter(x => x !== name)].slice(0, 10);
    store.set(RECENT_KEY, recent.value);
  };
-  // target: shot index or "global"; field: ref | ref2 (global_ref | global_ref2 for "global")
-  const setRef = (target, field, name) => {
-    if (isColorValue(name)) return; // colors belong to Color Guide settings, never to image references
-    if (target === "global") plan[field] = name; else meta(target)[field] = name;
+  // target: shot index or "global"; k: the picture's slot (0 = <Picture 1>). "" removes it: a global picture is taken
+  // out of the list (the next ones move up), a shot's own picture falls back to the global one at that slot
+  const refsOf = target => (target === "global" ? plan.global_refs : (meta(target).refs ||= []));
+  const setRef = (target, k, name) => {
+    if (isColorValue(name)) return; // colors belong to Colored Mark settings, never to image references
+    const list = refsOf(target);
+    if (name) { while (list.length < k) list.push(""); list[k] = name; }
+    else if (target === "global" || k >= plan.global_refs.length) list.splice(k, 1);
+    else list[k] = "";
    remember(name); save();
  };
-  const uploadRef = (target, field) => pickFile("image/*", name => setRef(target, field, name));
+  // pictures put in from slot k on (k = the list's end: added), never past 12
+  const putRefs = (target, k, names) => {
+    const list = refsOf(target);
+    names.slice(0, Math.max(0, MAX_REFS - k)).forEach((name, j) => { while (list.length < k + j) list.push(""); list[k + j] = name; remember(name); });
+    save();
+  };
+  const uploadRef = (target, k, many = false) => many
+    ? pickFiles("image/*", names => putRefs(target, k, names))
+    : pickFile("image/*", name => setRef(target, k, name));
+  // a drop on slot k replaces it (more files go on the next slots); k = null (the box): added at the end. A recent
+  // thumbnail dragged in carries its name, image files are uploaded
+  const dropRefs = (target, k, e) => {
+    const at = k ?? refsOf(target).length;
+    const name = e.dataTransfer?.getData("text/bfs-ref");
+    if (name) { putRefs(target, at, [name]); return; }
+    const files = [...(e.dataTransfer?.files || [])].filter(f => f.type.startsWith("image/"));
+    if (files.length) uploadAll(files, names => putRefs(target, at, names));
+  };
  const clearRecent = () => { recent.value = []; store.set(RECENT_KEY, []); };
-  // everything: the recent list AND every reference this plan uses (global, per shot, per person in the cast)
+  // everything: the recent list and every reference this plan uses (global and per shot)
  const clearAllRefs = () => {
-    if (!confirm("Remove every reference picture from this plan (global, every shot and every person) and forget the recent list?")) return;
+    if (!confirm("Remove every reference picture from this plan (global, every shot) and forget the recent list?")) return;
    clearRecent();
-    plan.global_ref = ""; plan.global_ref2 = "";
-    plan.segs.forEach(m => { if (m) { m.ref = ""; m.ref2 = ""; } });
-    Object.values(plan.cast || {}).forEach(cc => { if (cc) { cc.ref = ""; cc.ref2 = ""; } });
+    plan.global_refs = [];
+    plan.segs.forEach(m => { if (m) m.refs = []; });
    save();
  };
  const usedRefs = computed(() => {
-    const set = new Set([...recent.value, plan.global_ref, plan.global_ref2, ...plan.segs.flatMap(m => [m?.ref, m?.ref2])].filter(Boolean));
+    const set = new Set([...recent.value, ...plan.global_refs, ...plan.segs.flatMap(m => m?.refs || [])].filter(Boolean));
    return [...set].slice(0, 10);
  });

@@ -618,12 +868,14 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
  const c = {
    api, plan, files, an, cuts, detectorUsed, size, busy, error, status, busySince, now, upPct, sel, zoom, hover, prog, tlEl,
    stats, people, maskPrev, showMasks, vlmSug, modal, segPeople, targetCrop, tab, copyOpts, COPY_FIELDS, vid, play, recent, clearRecent, clearAllRefs,
-    n, range, setRange, maxLen, segs, active, pxPerFrame, tlWidth, filtersOn, refSets, usedRefs, checks, tour,
-    MODES, modeOf, modeName, viewUrl, save, meta, setMeta, setMode, setPlan, whoIn, castOf, linked, castRef, personOf, statFor, skipWhy, refOf, promptOf, checksFor,
+    n, range, setRange, maxLen, segs, allSegCount, active, pxPerFrame, tlWidth, filtersOn, usedRefs, checks, tour, memory, vram, refreshVram, cache, cacheOf, redo, combine,
+    MODES, modeOf, modeName, viewUrl, save, meta, setMeta, setMode, setPlan, whoIn, castOf, included, personOf, statFor, skipWhy, refOf, promptOf, checksFor,
    refreshFiles, analyze, autoSplit, analyzeContent, findPeople, setCast, describeTarget, previewMask, setMask, setMaskCfg,
-    openPoints, savePoints, savePointsAll, saveTrack, clearTrack, pointsTo, clearMask, copyFrom, analyseVLM, describeRefs, setDetail, setVlmCfg,
+    openPoints, switchPointRegion, savePoints, savePointsAll, saveTrack, clearTrack, pointsTo, clearMask, copyFrom, analyseVLM, setVlmCfg,
    applySug, applyAllSug, setCastOpt, setGlobalMaskVideo, setFilter, pickFile, progress, setVideo, splitAt, mergeNext, removeCut, select, drag,
-    frameAt, thumbFor, playShot, playAll, stop, seek, setRef, uploadRef,
+    frameAt, thumbFor, playShot, playAll, stop, seek, setRef, putRefs, uploadRef, dropRefs, pictures, describePictures, setPictureDetail, setPictureCfg,
+    setMarkPicture, addMarkRegion, setMarkRegion, removeMarkRegion, setPictureColor,
+    autoFor, writtenOf, setAuto, setWritten, writePrompts,
  };

  return () => {
@@ -639,11 +891,12 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
      h("label", { class: "langpick", title: t("Language") }, [
        h("span", { class: "hint" }, "🌐"),
        h("select", { value: uiLanguage.value, "aria-label": t("Language"), onChange: e => setUiLanguage(e.target.value) }, [
-          h("option", { value: "en" }, "English"), h("option", { value: "pt" }, "Português"),
-          h("option", { value: "es" }, "Español"), h("option", { value: "zh" }, "中文"),
+          rawH("option", { value: "en" }, "English"), rawH("option", { value: "pt" }, "Português"),
+          rawH("option", { value: "es" }, "Español"), rawH("option", { value: "zh" }, "中文"),
        ]),
      ]),
-      pill(plan.run === "queue" ? "queue loop" : "auto loop"),
+      memPill(),
+      pill({ queue: "queue loop", recursive: "shot by shot" }[plan.run] || "auto loop"),
      h("button", { title: t("Shot Planner tour"), onClick: () => { tour.value = 1; tab.value = "video"; } }, t("🧭 Tour")),
      h("button", { title: "Open the full guide (every setting explained, with examples)", onClick: () => showGuide(guideUrl) }, "📖 Guide"),
    ]);
@@ -666,8 +919,89 @@ const meta = i => { while (plan.segs.length <= i) plan.segs.push({}); return pla
  };
 }

+// A workflow saved before 1.113 keeps the old slots of these nodes (ComfyUI restores a node's saved slots): the
+// planner's ref_image / ref_image_2 inputs are gone, the planner's and Unpack's ref_image / ref_image_2 outputs are now
+// refs / ref_count, and what fed Repack's ref_image now feeds its refs input.
+// Saved widget orders of the conditioning nodes (ComfyUI restores values by position): use_ref_2 (always second) left
+// in 1.114 and the Advanced node's duet widgets in 1.113, so older values are put back by name
+const OLD_ADVANCED_WIDGETS = ["guide_mode", "use_ref_2", "first_frame", "ref_image_size", "with_audio", "duet",
+  "panel_position", "panel_size", "panel_noise", "rope_gap", "task", "instruction", "setting_ref", "inpaint", "mask_guide",
+  "source_blur", "source_blur_strength", "source_blur_segmenter", "source_blur_effect", "mask_guide_look", "mask_ref_size"];
+const ADVANCED_1113 = ["guide_mode", "use_ref_2", "first_frame", "ref_image_size", "with_audio", "setting_ref", "inpaint",
+  "mask_guide", "source_blur", "source_blur_strength", "source_blur_segmenter", "source_blur_effect", "mask_guide_look", "mask_ref_size"];
+const OLD_SIMPLE_WIDGETS = ["guide_mode", "use_ref_2", "ref_image_size", "with_audio", "inpaint", "source_blur",
+  "source_blur_strength", "source_blur_segmenter", "source_blur_effect"];
+const NO_BLUR_PICKERS = n => n !== "source_blur_segmenter" && n !== "source_blur_effect";   // added later
+function oldWidgetNames(cls, v) {
+  if (typeof v[1] !== "boolean") return null;          // already without use_ref_2
+  if (cls === "BFSShotH3ConditioningSimple") return v.length >= 9 ? OLD_SIMPLE_WIDGETS : OLD_SIMPLE_WIDGETS.filter(NO_BLUR_PICKERS);
+  if (["off", "canvas", "shifted RoPE"].includes(v[5]) && ["left", "right", "top", "bottom"].includes(v[6]))
+    return v.length >= 21 ? OLD_ADVANCED_WIDGETS : OLD_ADVANCED_WIDGETS.filter(NO_BLUR_PICKERS);
+  return v.length >= 14 ? ADVANCED_1113 : ADVANCED_1113.filter(NO_BLUR_PICKERS);
+}
+function upgradeConditioningWidgets(node, info) {
+  const v = info?.widgets_values;
+  const names = Array.isArray(v) && oldWidgetNames(node.comfyClass, v);
+  if (!names) return;
+  names.forEach((name, k) => { const w = node.widgets?.find(x => x.name === name); if (w && k < v.length) w.value = v[k]; });
+  // widgets the saved workflow did not have got a shifted value: back to their default (a list's first choice)
+  node.widgets?.forEach(w => {
+    const choices = w.options?.values;
+    if (!names.includes(w.name) && Array.isArray(choices) && !choices.includes(w.value)) w.value = w.options.default ?? choices[0];
+  });
+}
+
+function upgradeLegacySlots(node, info) {
+  const cls = node.comfyClass;
+  if (cls === "BFSShotH3Conditioning" || cls === "BFSShotH3ConditioningSimple") {
+    upgradeConditioningWidgets(node, info);
+    // 1.115.9 appends MODEL routing to Simple; preserve all existing slot indices/links.
+    if (cls === "BFSShotH3ConditioningSimple") {
+      if (!node.inputs?.some(x => x.name === "model")) node.addInput("model", "MODEL");
+      if (!node.outputs?.some(x => x.name === "model")) node.addOutput("model", "MODEL");
+    }
+    return;
+  }
+  // ref_image / ref_image_2 outputs at slots `at`, at+1 -> refs (list) / ref_count
+  const listOutputs = at => {
+    const a = node.outputs?.[at], b = node.outputs?.[at + 1];
+    if (a?.name === "ref_image") Object.assign(a, { name: "refs", label: undefined, localized_name: "refs", shape: 6 });
+    if (b?.name === "ref_image_2") { node.disconnectOutput(at + 1); Object.assign(b, { name: "ref_count", label: undefined, localized_name: "ref_count", type: "INT", shape: undefined }); }
+  };
+  if (cls === "BFSShotPlanner") {
+    for (const name of ["ref_image", "ref_image_2"]) {
+      const k = node.inputs?.findIndex(x => x.name === name) ?? -1;
+      if (k >= 0) node.removeInput(k);
+    }
+    listOutputs(8);
+  } else if (cls === "BFSShotUnpack") {
+    listOutputs(1);
+  } else if (cls === "BFSShotRepack") {
+    // what fed ref_image now feeds refs; ref_image / ref_image_2 go away
+    const at = name => node.inputs?.findIndex(x => x.name === name) ?? -1;
+    for (const name of ["ref_image", "ref_image_2"]) {
+      const k = at(name); if (k < 0) continue;
+      const lid = node.inputs[k].link, l = lid == null ? null : (node.graph?.links?.get?.(lid) ?? node.graph?.links?.[lid]);
+      const origin = l ? node.graph.getNodeById(l.origin_id) : null;
+      node.removeInput(k);
+      const to = at("refs");
+      if (name === "ref_image" && origin && to >= 0 && node.inputs[to].link == null) origin.connect(l.origin_slot, node, to);
+    }
+  } else return;
+  node.setDirtyCanvas?.(true, true);
+}
+
 app.registerExtension({
  name: "BFSNodes.ShotPlanner",
+  async beforeRegisterNodeDef(nodeType, nodeData) {
+    if (!["BFSShotPlanner", "BFSShotUnpack", "BFSShotRepack", "BFSShotH3Conditioning", "BFSShotH3ConditioningSimple"].includes(nodeData.name)) return;
+    const prev = nodeType.prototype.onConfigure;
+    nodeType.prototype.onConfigure = function (info) {
+      const r = prev?.apply(this, arguments);
+      upgradeLegacySlots(this, info);
+      return r;
+    };
+  },
  async nodeCreated(node) {
    if (node.comfyClass !== "BFSShotPlanner") return;
    styles();
@@ -681,6 +1015,7 @@ app.registerExtension({
    // node (Vue nodes mode sizes widgets by their content); min-width keeps it from collapsing to its content width
    host.style.cssText = "position:relative;width:100%;height:100%;min-width:900px;min-height:640px";
    node.addDOMWidget("bfs_shot_planner", "div", host, { serialize: false, hideOnZoom: false });
+    wheelToCanvas(host);   // the wheel zooms the canvas over the panel too, except on something that scrolls
    const handle = {};
    createApp({
      setup: () => Panel({
@@ -0,0 +1,495 @@
+/**
+ * BFS Video Compare: one player for two videos.
+ *
+ * Wipe (drag the divider), overlay (drag to fade) or side by side, with any of guide / target / difference on top
+ * or below. The strip under the scrubber is the difference per frame, measured by the node on the real frames:
+ * click it to jump to a frame. The node sends three temporary MP4s and that list when it runs.
+ *
+ * ⬇ save plays the video once from the start and downloads it as shown (same layout, divider, labels); ● rec records
+ * whatever you do in the player (dragging the divider, pausing, scrubbing) until ■ stop. Both draw the two videos into
+ * a canvas and record it in the browser, in real time. The browser's file (WebM, or a fragmented MP4 many apps won't
+ * play) is then converted by ComfyUI to the chosen format: MP4 (H.264), a small MP4 (under 10 MB) or a GIF.
+ */
+import { app } from "../../scripts/app.js";
+import { api } from "../../scripts/api.js";
+import { wheelToCanvas } from "./bfs_wheel.js";
+
+const SOURCES = ["guide", "target", "difference"];
+const MODES = [["wipe", "wipe ↔"], ["wipe-v", "wipe ↕"], ["overlay", "overlay"], ["side", "side by side"]];
+const FORMATS = [["mp4", "MP4"], ["small", "MP4 small (<10 MB)"], ["gif", "GIF"], ["webm", "browser file (WebM)"]];
+const FORMAT_KEY = "bfs.videoCompare.format";
+const PART = 8 * 1024 * 1024;   // upload pieces, under ComfyUI's request limit
+
+function styles() {
+  if (document.getElementById("bfs-vcmp-css")) return;
+  const el = document.createElement("style");
+  el.id = "bfs-vcmp-css";
+  el.textContent = `
+.bfsvc{display:flex;flex-direction:column;gap:6px;height:100%;box-sizing:border-box;padding:6px;
+  font:12px/1.4 var(--font-family,system-ui,sans-serif);color:var(--descrip-text,#c9c9cf);
+  background:var(--comfy-input-bg,#1b1b1f);border-radius:8px}
+.bfsvc .stage{position:relative;flex:1 1 0;min-height:160px;background:#0e0e11;border-radius:6px;overflow:hidden;
+  cursor:ew-resize;touch-action:none;user-select:none}
+.bfsvc .stage.v{cursor:ns-resize}.bfsvc .stage.o{cursor:col-resize}.bfsvc .stage.s{cursor:default}
+.bfsvc video{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;pointer-events:none}
+.bfsvc .stage.s video{width:calc(50% - 2px)}.bfsvc .stage.s video.r{left:auto;right:0}
+.bfsvc .refs{flex:0 0 auto;height:84px;display:flex;gap:6px;justify-content:center;overflow-x:auto;padding:4px;
+  background:#0e0e11;border-radius:6px}
+.bfsvc .refs figure{margin:0;height:100%;position:relative;flex:none}
+.bfsvc .refs img{height:100%;border-radius:4px;box-shadow:0 0 0 1px #000a;background:#000;display:block}
+.bfsvc .refs figcaption{position:absolute;left:3px;top:2px;font-size:10px;padding:0 4px;border-radius:3px;background:#000a;color:#fff}
+.bfsvc .line{position:absolute;background:#fff;box-shadow:0 0 0 1px #0008;pointer-events:none}
+.bfsvc .tag{position:absolute;top:6px;padding:1px 7px;border-radius:4px;background:#000a;color:#fff;font-size:11px;
+  pointer-events:none}
+.bfsvc .row{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
+.bfsvc select,.bfsvc button{background:#131317;border:1px solid #34343d;color:#e6e6ea;border-radius:4px;
+  padding:2px 6px;font:inherit;cursor:pointer}
+.bfsvc button:hover,.bfsvc select:hover{border-color:#3a86ff}
+.bfsvc button.rec{border-color:#e0573a;color:#ff7a5c}
+.bfsvc button:disabled{opacity:.45;cursor:default}
+.bfsvc label{display:flex;gap:3px;align-items:center;cursor:pointer}
+.bfsvc input[type=range]{flex:1;accent-color:#3a86ff;min-width:80px}
+.bfsvc canvas{width:100%;height:26px;cursor:pointer;border-radius:3px;background:#131317;display:block}
+.bfsvc .info{font-family:ui-monospace,monospace;font-size:11px;white-space:nowrap}
+.bfsvc .empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#8b8b93;
+  text-align:center;padding:12px}
+`;
+  document.head.appendChild(el);
+}
+
+const url = f => api.apiURL(`/view?filename=${encodeURIComponent(f.filename)}&subfolder=${encodeURIComponent(f.subfolder || "")}`
+  + `&type=${f.type || "temp"}&t=${Date.now()}`);
+
+function el(tag, attrs = {}, kids = []) {
+  const e = document.createElement(tag);
+  for (const [k, v] of Object.entries(attrs)) {
+    if (k === "style") e.style.cssText = v; else if (k.startsWith("on")) e.addEventListener(k.slice(2), v);
+    else e.setAttribute(k, v);
+  }
+  for (const c of [].concat(kids)) e.append(c);
+  return e;
+}
+
+function buildPlayer(host) {
+  const st = { data: null, top: "target", bottom: "guide", mode: "wipe", pos: 0.5, playing: false, muted: true, frame: 0,
+    labels: true, refs: true };
+  const vTop = el("video", { playsinline: "", preload: "auto", loop: "" });
+  const vBot = el("video", { playsinline: "", preload: "auto", loop: "" });
+  vTop.muted = vBot.muted = true;
+  const line = el("div", { class: "line" });
+  const tagTop = el("div", { class: "tag" }), tagBot = el("div", { class: "tag" });
+  const empty = el("div", { class: "empty" }, "Run the node to load the guide and the target.");
+  const refBox = el("div", { class: "refs", style: "display:none" });
+  const stage = el("div", { class: "stage", tabindex: "0" }, [vBot, vTop, line, tagTop, tagBot, empty]);
+  const sel = (opts, val, on) => {
+    const s = el("select", {}, opts.map(([v, l]) => { const o = el("option", { value: v }, l); if (v === val) o.selected = true; return o; }));
+    s.addEventListener("change", () => on(s.value));
+    return s;
+  };
+  const srcOpts = () => SOURCES.map(s => [s, s === "guide" ? (st.data?.labels?.[0] || "guide") : s === "target" ? (st.data?.labels?.[1] || "target") : "difference"]);
+  let selTop, selBot;
+  const selMode = sel(MODES, st.mode, v => { st.mode = v; layout(); });
+  const refreshSelects = () => {
+    const t = sel(srcOpts(), st.top, v => { st.top = v; load(); }), b = sel(srcOpts(), st.bottom, v => { st.bottom = v; load(); });
+    selTop ? selTop.replaceWith(t) : null; selBot ? selBot.replaceWith(b) : null;
+    selTop = t; selBot = b;
+  };
+  refreshSelects();
+  const btnSwap = el("button", { title: "Swap top and bottom", onclick: () => { [st.top, st.bottom] = [st.bottom, st.top]; refreshSelects(); load(); } }, "⇅ swap");
+  const btnPlay = el("button", { title: "Play / pause (space)", onclick: () => toggle() }, "▶");
+  const btnPrev = el("button", { title: "Previous frame (←)", onclick: () => step(-1) }, "◀|");
+  const btnNext = el("button", { title: "Next frame (→)", onclick: () => step(1) }, "|▶");
+  const btnMute = el("button", { title: "Sound (from the target)", onclick: () => { st.muted = !st.muted; sound(); } }, "🔇");
+  const btnFull = el("button", { title: "Full screen", onclick: () => (document.fullscreenElement ? document.exitFullscreen() : host.requestFullscreen?.())?.catch?.(() => {}) }, "⛶");
+  const btnSave = el("button", { title: "Play the video once from the start and download it as shown", onclick: () => saveFull() }, "⬇ save");
+  let format = "mp4";
+  try { format = localStorage.getItem(FORMAT_KEY) || format; } catch { }
+  if (!FORMATS.some(([v]) => v === format)) format = "mp4";
+  const selFormat = sel(FORMATS, format, v => { format = v; try { localStorage.setItem(FORMAT_KEY, v); } catch { } });
+  selFormat.title = "Format of what save / rec download. MP4: H.264 + AAC, plays and previews anywhere. MP4 small: "
+    + "the same, sized to stay under 10 MB. GIF: no sound, under 10 MB. browser file: the recording as it is, no conversion.";
+  const btnRec = el("button", { title: "Record what you do in the player until stop, then download it", onclick: () => (rec.mr ? stopRec() : startRec()) }, "● rec");
+  const chkLabels = el("input", { type: "checkbox" });
+  chkLabels.checked = true;
+  chkLabels.addEventListener("change", () => { st.labels = chkLabels.checked; });
+  const chkRefs = el("input", { type: "checkbox" });
+  chkRefs.checked = true;
+  const showRefs = () => { refBox.style.display = st.refs && refBox.childElementCount ? "flex" : "none"; };
+  chkRefs.addEventListener("change", () => { st.refs = chkRefs.checked; showRefs(); });
+  const lblRefs = el("label", { title: "Show the reference pictures in a strip below the videos (also in what save / rec download)", style: "display:none" }, [chkRefs, "refs"]);
+  const scrub = el("input", { type: "range", min: "0", max: "0", value: "0", step: "1" });
+  scrub.addEventListener("input", () => seek(+scrub.value));
+  const info = el("span", { class: "info" }, "");
+  const strip = el("canvas", { title: "Difference per frame: click to jump" });
+  strip.addEventListener("pointerdown", e => {
+    const r = strip.getBoundingClientRect(), n = st.data?.frames || 0;
+    if (n) seek(Math.min(n - 1, Math.max(0, Math.floor((e.clientX - r.left) / r.width * n))));
+  });
+  const notes = el("div", {style:"white-space:pre-wrap;font-size:12px;padding:6px;color:#e6b566"});
+  host.append(el("div", { class: "bfsvc" }, [
+    el("div", { class: "row" }, [el("span", {}, "top"), selTop, btnSwap, el("span", {}, "bottom"), selBot, selMode, btnFull]),
+    stage,
+    refBox,
+    el("div", { class: "row" }, [btnPrev, btnPlay, btnNext, scrub, btnMute, info]),
+    el("div", { class: "row" }, [btnSave, btnRec, selFormat, el("label", { title: "Draw the names on the saved / recorded video" }, [chkLabels, "labels"]), lblRefs]),
+    strip,
+    notes,
+  ]));
+
+  const fps = () => st.data?.fps || 24;
+  const frameOf = t => Math.min((st.data?.frames || 1) - 1, Math.max(0, Math.floor(t * fps() + 1e-3)));
+  const timeOf = f => (f + 0.5) / fps();
+  const videos = () => [vBot, vTop];
+
+  function sound() {
+    btnMute.textContent = st.muted ? "🔇" : "🔊";
+    for (const v of [vTop, vBot]) v.muted = true;
+    if (!st.muted) { const v = st.bottom === "target" ? vBot : st.top === "target" ? vTop : null; if (v) v.muted = false; }
+  }
+
+  function layout() {
+    const m = st.mode, p = st.pos;
+    stage.className = "stage" + (m === "wipe-v" ? " v" : m === "overlay" ? " o" : m === "side" ? " s" : "");
+    vTop.style.clipPath = m === "wipe" ? `inset(0 ${(1 - p) * 100}% 0 0)` : m === "wipe-v" ? `inset(0 0 ${(1 - p) * 100}% 0)` : "none";
+    vTop.style.opacity = m === "overlay" ? String(p) : "1";
+    line.style.display = m === "wipe" || m === "wipe-v" ? "block" : "none";
+    if (m === "wipe") line.style.cssText = `display:block;left:calc(${p * 100}% - 1px);top:0;bottom:0;width:2px`;
+    if (m === "wipe-v") line.style.cssText = `display:block;top:calc(${p * 100}% - 1px);left:0;right:0;height:2px`;
+    stage.prepend(vTop); stage.prepend(vBot);   // under the divider and tags; side by side: bottom left, top right
+    vTop.classList.toggle("r", m === "side");
+    const name = s => s === "guide" ? (st.data?.labels?.[0] || "guide") : s === "target" ? (st.data?.labels?.[1] || "target") : "difference";
+    tagTop.textContent = name(st.top) + (m === "overlay" ? ` ${Math.round(p * 100)}%` : "");
+    tagBot.textContent = name(st.bottom);
+    tagTop.style.cssText = m === "side" ? "right:6px" : "left:6px";
+    tagBot.style.cssText = m === "side" ? "left:6px" : m === "wipe-v" ? "left:6px;top:auto;bottom:6px" : "right:6px";
+    if (m === "overlay") tagBot.style.cssText = "right:6px";
+  }
+
+  function drag(e) {
+    if (st.mode === "side" || !st.data) return;
+    const r = stage.getBoundingClientRect();
+    st.pos = Math.min(1, Math.max(0, st.mode === "wipe-v" ? (e.clientY - r.top) / r.height : (e.clientX - r.left) / r.width));
+    layout();
+  }
+  stage.addEventListener("pointerdown", e => { stage.setPointerCapture(e.pointerId); drag(e); });
+  stage.addEventListener("pointermove", e => { if (stage.hasPointerCapture(e.pointerId)) drag(e); });
+  stage.addEventListener("keydown", e => {
+    if (e.key === " ") { toggle(); e.preventDefault(); }
+    else if (e.key === "ArrowLeft") { step(-1); e.preventDefault(); }
+    else if (e.key === "ArrowRight") { step(1); e.preventDefault(); }
+  });
+
+  function drawStrip() {
+    const d = st.data, ctx = strip.getContext("2d");
+    const w = strip.width = Math.max(50, strip.clientWidth * devicePixelRatio), h = strip.height = 26 * devicePixelRatio;
+    ctx.clearRect(0, 0, w, h);
+    if (!d?.mae?.length) return;
+    // from the least to the most different frame, so the changes along the video stand out
+    const mx = Math.max(...d.mae), mn = Math.min(...d.mae), span = Math.max(mx - mn, 1e-6), n = d.mae.length;
+    ctx.fillStyle = "#e0573a";
+    d.mae.forEach((v, i) => { const bh = 2 + (v - mn) / span * (h - 4); ctx.fillRect(i / n * w, h - bh, Math.max(1, w / n), bh); });
+    ctx.fillStyle = "#3a86ff";
+    ctx.fillRect(st.frame / n * w, 0, Math.max(2, w / n), h);
+  }
+
+  function show(f) {
+    st.frame = f;
+    scrub.value = String(f);
+    const d = st.data;
+    const t = (f / fps());
+    info.textContent = d ? `frame ${f}/${d.frames - 1}  ${t.toFixed(2)}s  diff ${(d.mae?.[f] ?? 0).toFixed(1)}/255` : "";
+    drawStrip();
+  }
+
+  function seek(f) {
+    if (!st.data) return;
+    if (st.playing) toggle();
+    for (const v of videos()) v.currentTime = timeOf(f);
+    show(f);
+  }
+  const step = k => seek(Math.min(st.data ? st.data.frames - 1 : 0, Math.max(0, st.frame + k)));
+
+  function toggle() {
+    if (!st.data) return;
+    st.playing = !st.playing;
+    btnPlay.textContent = st.playing ? "⏸" : "▶";
+    if (st.playing) { vTop.currentTime = vBot.currentTime; for (const v of videos()) v.play().catch(() => {}); tick(); }
+    else for (const v of videos()) { v.pause(); v.playbackRate = 1; }
+  }
+
+  function tick() {   // the bottom video is the clock; the top one follows it within half a frame
+    if (!st.playing) return;
+    // small drift: nudge the top one's speed (seeking it every frame kept it seeking, so it stuttered and drew blank)
+    const drift = vTop.currentTime - vBot.currentTime;
+    if (!vTop.seeking) {
+      if (Math.abs(drift) > 0.25) { vTop.currentTime = vBot.currentTime; vTop.playbackRate = 1; }
+      else vTop.playbackRate = Math.abs(drift) > 0.5 / fps() ? Math.min(1.05, Math.max(0.95, 1 - 2 * drift)) : 1;
+    }
+    show(frameOf(vBot.currentTime));
+    requestAnimationFrame(tick);
+  }
+
+  function load() {
+    const d = st.data;
+    if (!d) return;
+    const f = st.frame, was = st.playing;
+    if (was) toggle();
+    let pending = 2;
+    const ready = () => { if (--pending === 0) { for (const v of videos()) v.currentTime = timeOf(f); show(f); sound(); if (was) toggle(); } };
+    for (const [v, s] of [[vTop, st.top], [vBot, st.bottom]]) {
+      v.addEventListener("loadeddata", ready, { once: true });
+      v.src = url(d[s]);
+      v.load();
+    }
+    layout();
+  }
+
+  // --- save / record: the two videos drawn into a canvas the way the stage shows them, encoded by MediaRecorder
+  const rec = { mr: null, chunks: [], raf: 0, t0: 0, full: false, onEnd: null, type: "", busy: "" };
+
+  function pickType(audio) {   // name an audio codec only with a sound track: Firefox stalls on one it never gets
+    const list = audio ? ["video/mp4;codecs=avc1.640028,mp4a.40.2", "video/mp4", "video/webm;codecs=vp9,opus", "video/webm;codecs=vp8,opus", "video/webm"]
+      : ["video/mp4;codecs=avc1.640028", "video/mp4;codecs=avc1", "video/mp4", "video/webm;codecs=vp9", "video/webm;codecs=vp8", "video/webm"];
+    return list.find(t => window.MediaRecorder?.isTypeSupported?.(t)) || "";
+  }
+
+  function fit(aw, ah, x, y, w, h) {   // the largest aw:ah box centred in (x, y, w, h)
+    const k = Math.min(w / aw, h / ah), bw = aw * k, bh = ah * k;
+    return [x + (w - bw) / 2, y + (h - bh) / 2, bw, bh];
+  }
+
+  function label(ctx, text, x, y, size, right = false, bottom = false) {
+    ctx.font = `${size}px system-ui,sans-serif`;
+    const pad = size * 0.45, w = ctx.measureText(text).width + 2 * pad, h = size * 1.5;
+    const lx = right ? x - w : x, ly = bottom ? y - h : y;
+    ctx.fillStyle = "rgba(0,0,0,.65)"; ctx.fillRect(lx, ly, w, h);
+    ctx.fillStyle = "#fff"; ctx.textBaseline = "middle"; ctx.fillText(text, lx + pad, ly + h / 2);
+  }
+
+  const last = new Map();   // video -> its last whole frame, drawn while it seeks (a seeking video draws blank)
+  function pic(v) {
+    if (v.readyState < 2 || v.seeking) return last.get(v) || v;
+    let c = last.get(v);
+    if (!c) last.set(v, c = el("canvas"));
+    if (c.width !== v.videoWidth || c.height !== v.videoHeight) { c.width = v.videoWidth; c.height = v.videoHeight; }
+    c.getContext("2d").drawImage(v, 0, 0);
+    return c;
+  }
+
+  const refImages = () => (st.refs ? [...refBox.querySelectorAll("img")].filter(i => i.complete && i.naturalWidth) : []);
+  // save / rec: the pictures in a strip below the videos, as in the player (22% of the video's height)
+  const stripHeight = h => (refImages().length ? Math.round(h * 0.22) & ~1 : 0);
+  function drawRefs(ctx, top) {
+    const ims = refImages();
+    if (!ims.length) return;
+    const cw = ctx.canvas.width, sh = ctx.canvas.height - top, gap = Math.max(2, Math.round(sh * 0.05));
+    let h = sh - 2 * gap;
+    const widths = () => ims.map(im => Math.round(im.naturalWidth * h / im.naturalHeight));
+    let total = widths().reduce((a, b) => a + b, 0) + gap * (ims.length - 1);
+    if (total > cw - 2 * gap) { h = Math.floor(h * (cw - 2 * gap) / total); total = widths().reduce((a, b) => a + b, 0) + gap * (ims.length - 1); }
+    ctx.fillStyle = "#0e0e11"; ctx.fillRect(0, top, cw, sh);
+    let x = Math.round((cw - total) / 2);
+    const y = top + Math.round((sh - h) / 2), fs = Math.max(10, Math.round(h * 0.12));
+    ims.forEach((im, k) => {
+      const w = Math.round(im.naturalWidth * h / im.naturalHeight);
+      ctx.drawImage(im, x, y, w, h);
+      if (st.labels) label(ctx, `Picture ${k + 1}`, x + 3, y + 3, fs);
+      x += w + gap;
+    });
+  }
+
+  function compose(ctx) {
+    const sh = ctx.canvas.height - (ctx.canvas.videoHeight || ctx.canvas.height);
+    drawVideos(ctx, ctx.canvas.height - sh);
+    drawRefs(ctx, ctx.canvas.height - sh);
+  }
+
+  function drawVideos(ctx, area) {
+    const cw = ctx.canvas.width, ch = area ?? ctx.canvas.height, m = st.mode, p = st.pos;
+    const B = pic(vBot), T = pic(vTop);
+    const aw = vBot.videoWidth || st.data.width, ah = vBot.videoHeight || st.data.height;
+    const name = s => s === "guide" ? (st.data?.labels?.[0] || "guide") : s === "target" ? (st.data?.labels?.[1] || "target") : "difference";
+    ctx.fillStyle = "#000"; ctx.fillRect(0, 0, cw, ch);
+    if (m === "side") {   // bottom left, top right, as on the stage
+      const gap = Math.round(cw * 0.004), half = (cw - gap) / 2;
+      const a = fit(aw, ah, 0, 0, half, ch), b = fit(aw, ah, half + gap, 0, half, ch);
+      ctx.drawImage(B, ...a); ctx.drawImage(T, ...b);
+      if (st.labels) {
+        const fs = Math.max(12, Math.round(a[3] * 0.032)), o = fs * 0.5;
+        label(ctx, name(st.bottom), a[0] + o, a[1] + o, fs); label(ctx, name(st.top), b[0] + o, b[1] + o, fs);
+      }
+      return;
+    }
+    const [x, y, w, h] = fit(aw, ah, 0, 0, cw, ch);
+    ctx.drawImage(B, x, y, w, h);
+    ctx.save();
+    if (m === "wipe" || m === "wipe-v") { ctx.beginPath(); m === "wipe" ? ctx.rect(x, y, w * p, h) : ctx.rect(x, y, w, h * p); ctx.clip(); }
+    if (m === "overlay") ctx.globalAlpha = p;
+    ctx.drawImage(T, x, y, w, h);
+    ctx.restore();
+    const lw = Math.max(2, Math.round(h / 360));
+    ctx.fillStyle = "#fff";
+    if (m === "wipe") ctx.fillRect(x + w * p - lw / 2, y, lw, h);
+    if (m === "wipe-v") ctx.fillRect(x, y + h * p - lw / 2, w, lw);
+    if (st.labels) {
+      const fs = Math.max(12, Math.round(h * 0.032)), o = fs * 0.5;
+      label(ctx, name(st.top) + (m === "overlay" ? ` ${Math.round(p * 100)}%` : ""), x + o, y + o, fs);
+      if (m === "wipe-v") label(ctx, name(st.bottom), x + o, y + h - o, fs, false, true);
+      else label(ctx, name(st.bottom), x + w - o, y + o, fs, true);
+    }
+  }
+
+  function stem() {
+    const d = st.data, clean = s => String(s || "").replace(/[^\w.-]+/g, "_").slice(0, 40);
+    const stamp = new Date().toISOString().replace(/[:T]/g, "-").slice(0, 19);
+    return `bfs_compare_${clean(d?.labels?.[0])}_vs_${clean(d?.labels?.[1])}_${st.mode}_${stamp}`;
+  }
+
+  function download(href, name) {
+    const a = el("a", { href, download: name });
+    document.body.append(a); a.click(); a.remove();
+  }
+
+  async function exportBlob(blob, ext, seconds) {   // the browser's file -> ComfyUI converts it -> download
+    const name = stem();
+    if (format === "webm") {
+      const href = URL.createObjectURL(blob);
+      download(href, `${name}.${ext}`);
+      setTimeout(() => URL.revokeObjectURL(href), 60000);
+      return;
+    }
+    const id = [...crypto.getRandomValues(new Uint8Array(8))].map(b => b.toString(16).padStart(2, "0")).join("");
+    rec.busy = "uploading"; buttons();
+    try {
+      for (let off = 0; off < blob.size; off += PART) {
+        const r = await api.fetchApi(`/bfs/compare/part?id=${id}&offset=${off}`, { method: "POST", body: blob.slice(off, off + PART) });
+        if (!r.ok) throw new Error((await r.json().catch(() => ({}))).error || `upload failed (${r.status})`);
+      }
+      rec.busy = "converting"; buttons();
+      const r = await api.fetchApi("/bfs/compare/export", { method: "POST", headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ id, format, seconds, name }) });
+      const f = await r.json();
+      if (!r.ok || f.error) throw new Error(f.error || `conversion failed (${r.status})`);
+      download(url(f), f.filename);
+    } catch (e) {
+      alert(`BFS Video Compare: could not convert the recording (${e.message}). Choose "browser file" to download it as recorded.`);
+    } finally {
+      rec.busy = ""; buttons();
+    }
+  }
+
+  function buttons() {
+    if (rec.busy) {   // uploading / converting the finished recording
+      btnRec.classList.remove("rec");
+      btnRec.disabled = btnSave.disabled = selFormat.disabled = true;
+      btnSave.textContent = rec.busy === "uploading" ? "⬆ uploading…" : "⚙ converting…";
+      btnRec.textContent = "● rec";
+      return;
+    }
+    btnRec.disabled = selFormat.disabled = false;
+    const busy = !!rec.mr;
+    btnRec.classList.toggle("rec", busy);
+    btnRec.textContent = busy ? (rec.full ? "■ stop" : `■ stop ${((performance.now() - rec.t0) / 1000).toFixed(0)}s`) : "● rec";
+    btnSave.disabled = busy;
+    btnSave.textContent = busy && rec.full ? `⬇ ${Math.round(100 * (vBot.currentTime / (vBot.duration || 1)))}%` : "⬇ save";
+  }
+
+  function startRec(full = false) {
+    if (!st.data || rec.mr || rec.busy) return false;
+    if (!window.MediaRecorder || !HTMLCanvasElement.prototype.captureStream) { alert("This browser can't record a canvas (MediaRecorder)."); return false; }
+    const aw = vBot.videoWidth || st.data.width, ah = vBot.videoHeight || st.data.height;
+    const side = st.mode === "side", canvas = el("canvas");
+    // the size of the layout it starts in (side by side is twice as wide); a later mode change is fitted into it
+    canvas.width = (side ? 2 * aw + Math.round(2 * aw * 0.004) : aw) & ~1;
+    canvas.videoHeight = ah & ~1;                       // the videos; the reference strip goes below them
+    canvas.height = canvas.videoHeight + stripHeight(canvas.videoHeight);
+    const ctx = canvas.getContext("2d");
+    compose(ctx);
+    const stream = canvas.captureStream(Math.max(30, Math.round(fps())));
+    // the soundtrack is on the target. Not Firefox's mozCaptureStream: it takes the element's picture away from the canvas
+    const vt = st.top === "target" ? vTop : st.bottom === "target" ? vBot : null;
+    try { for (const t of vt?.captureStream?.()?.getAudioTracks?.() || []) stream.addTrack(t); } catch { }
+    const type = pickType(stream.getAudioTracks().length > 0);
+    if (!type) { for (const t of stream.getTracks()) t.stop(); alert("This browser can't record MP4 or WebM."); return false; }
+    rec.type = type; rec.chunks = []; rec.full = full; rec.t0 = performance.now();
+    rec.mr = new MediaRecorder(stream, { mimeType: type, videoBitsPerSecond: 16e6 });
+    rec.mr.ondataavailable = e => { if (e.data?.size) rec.chunks.push(e.data); };
+    rec.mr.onstop = () => {
+      for (const t of stream.getTracks()) t.stop();
+      const chunks = rec.chunks, seconds = (performance.now() - rec.t0) / 1000;
+      rec.mr = null; rec.chunks = []; buttons();
+      if (chunks.length) exportBlob(new Blob(chunks, { type: rec.type.split(";")[0] }), rec.type.includes("mp4") ? "mp4" : "webm", seconds);
+    };
+    rec.mr.start(1000);
+    const frame = () => { if (!rec.mr) return; compose(ctx); buttons(); rec.raf = requestAnimationFrame(frame); };
+    rec.raf = requestAnimationFrame(frame);
+    buttons();
+    return true;
+  }
+
+  function stopRec() {
+    if (!rec.mr) return;
+    cancelAnimationFrame(rec.raf);
+    if (rec.onEnd) { vBot.removeEventListener("ended", rec.onEnd); rec.onEnd = null; }
+    if (rec.full) { for (const v of videos()) v.loop = true; if (st.playing) toggle(); }
+    if (rec.mr.state !== "inactive") rec.mr.stop();
+  }
+
+  async function saveFull() {   // once from the first frame to the last, then stop and download
+    if (!st.data || rec.mr || rec.busy) return;
+    if (st.playing) toggle();
+    for (const v of videos()) v.loop = false;
+    const seeked = v => new Promise(res => { const t = setTimeout(res, 2000); v.addEventListener("seeked", () => { clearTimeout(t); res(); }, { once: true }); });
+    const wait = Promise.all(videos().map(seeked));
+    seek(0);
+    await wait;
+    if (!startRec(true)) { for (const v of videos()) v.loop = true; return; }
+    rec.onEnd = () => { rec.onEnd = null; stopRec(); };
+    vBot.addEventListener("ended", rec.onEnd, { once: true });
+    toggle();
+  }
+
+  return {
+    setData(d) {
+      stopRec();
+      last.clear();
+      refBox.replaceChildren(...(d.refs || []).map((f, k) => el("figure", { title: `Picture ${k + 1}` },
+        [el("img", { src: url(f), crossorigin: "anonymous" }), el("figcaption", {}, `Picture ${k + 1}`)])));
+      lblRefs.style.display = d.refs?.length ? "flex" : "none";
+      showRefs();
+      st.data = d;
+      notes.textContent = (d.notes || []).join("\n");
+      empty.style.display = "none";
+      scrub.max = String(Math.max(0, d.frames - 1));
+      refreshSelects();
+      st.frame = Math.min(st.frame, d.frames - 1);
+      load();
+    },
+    layout, drawStrip,
+  };
+}
+
+app.registerExtension({
+  name: "BFSNodes.VideoCompare",
+  async beforeRegisterNodeDef(nodeType, nodeData) {
+    if (nodeData.name !== "BFSVideoCompare") return;
+    const created = nodeType.prototype.onNodeCreated;
+    nodeType.prototype.onNodeCreated = function () {
+      const r = created?.apply(this, arguments);
+      styles();
+      const host = el("div", { style: "width:100%;height:100%;min-height:320px" });
+      this._bfsCompare = buildPlayer(host);
+      wheelToCanvas(host);   // the wheel zooms the canvas over the player too
+      this.addDOMWidget("bfs_video_compare", "div", host, { serialize: false, hideOnZoom: false, getMinHeight: () => 320 });
+      this.setSize([Math.max(this.size[0], 560), Math.max(this.size[1], 620)]);
+      new ResizeObserver(() => this._bfsCompare?.drawStrip()).observe(host);
+      return r;
+    };
+    const executed = nodeType.prototype.onExecuted;
+    nodeType.prototype.onExecuted = function (message) {
+      executed?.apply(this, arguments);
+      const d = message?.bfs_compare?.[0];
+      if (d) this._bfsCompare?.setData(d);
+    };
+  },
+});
@@ -0,0 +1,33 @@
+/**
+ * The mouse wheel over a node's HTML panel zooms / pans the canvas like anywhere else on the graph, unless the pointer
+ * is on something that scrolls that way and still can (a list, a text box, a tall panel): that one scrolls, and once
+ * it reaches its end the wheel goes back to the canvas. Ctrl / Cmd + wheel always goes to the canvas.
+ */
+import { app } from "../../scripts/app.js";
+
+function scrolls(start, stop, dx, dy) {
+  for (let n = start; n && n.nodeType === 1; n = n.parentElement) {
+    if (n.tagName === "SELECT" && (n.size > 1 || n.multiple)) return true;
+    const cs = getComputedStyle(n);
+    if (dy && /(auto|scroll)/.test(cs.overflowY) && n.scrollHeight > n.clientHeight + 1
+      && (dy < 0 ? n.scrollTop > 0 : n.scrollTop + n.clientHeight < n.scrollHeight - 1)) return true;
+    if (dx && /(auto|scroll)/.test(cs.overflowX) && n.scrollWidth > n.clientWidth + 1
+      && (dx < 0 ? n.scrollLeft > 0 : n.scrollLeft + n.clientWidth < n.scrollWidth - 1)) return true;
+    if (n === stop) break;
+  }
+  return false;
+}
+
+export function wheelToCanvas(el) {
+  el.addEventListener("wheel", e => {
+    const canvas = app.canvas?.canvas;
+    if (!canvas || e.defaultPrevented || (!(e.ctrlKey || e.metaKey) && scrolls(e.target, el, e.deltaX, e.deltaY))) return;
+    e.preventDefault();
+    e.stopPropagation();
+    canvas.dispatchEvent(new WheelEvent("wheel", {
+      deltaX: e.deltaX, deltaY: e.deltaY, deltaZ: e.deltaZ, deltaMode: e.deltaMode, clientX: e.clientX, clientY: e.clientY,
+      screenX: e.screenX, screenY: e.screenY, ctrlKey: e.ctrlKey, shiftKey: e.shiftKey, altKey: e.altKey, metaKey: e.metaKey,
+      bubbles: true, cancelable: true,
+    }));
+  }, { passive: false });
+}
@@ -17,10 +17,11 @@ every shot inside that range.
 | node | what it does |
 |---|---|
 | **BFS Shot Planner** | Pick a video, split it on a timeline, set a reference and prompt per shot. Outputs the shots as a ComfyUI **list**. |
-| **BFS Shot Unpack** | Opens one shot into plain values: guide frames, reference, second reference, prompt, length, first frame, audio, size, index. Use it with any model. |
+| **BFS Shot Unpack** | Opens one shot into plain values: guide frames, reference pictures (a list), prompt, length, first frame, audio, size, index. Use it with any model. |
 | **BFS Shot Repack** | Puts edited pieces back into a shot: Unpack's `shot` output goes to Repack's `shot`, the edited piece (e.g. the reference with its background removed) to its input. Unconnected inputs keep their values; timing, cuts and audio are unchanged. |
-| **BFS Shot H3 Conditioning** | Ready-made MiniMax H3 conditioning for one shot, built with the native nodes (Reference to Video + Add Guide). Optional *duet*: the shot's clip pinned in a side panel (canvas or shifted RoPE; route the model through the node for the shift); the join cuts the panel off. Optional prompt writer: pick a *task* (character swap, style, setting, appearance, lighting / weather, custom) and an *instruction*; with a VLM on its *vlm* input it writes each shot's duet prompt from the shot and its references, otherwise a template for the task (*planner prompt*, the default, keeps the planner's prompt). The written text comes out on *prompt*. Optional *setting_ref* (TSC's tip): one more reference, the shot's middle frame with the person covered in TV static, so the model sees the place in full detail; it is the last `<Picture n>` (write `{setting}` for its tag, otherwise a sentence is added to subject_definitions). |
-| **BFS Shot Join** | Concatenates the decoded shots in order, trims each to its true length, cross-fades soft joins and returns the soundtrack. With *comparison* on it also returns a side-by-side video (original shot \| references \| result) with the shot's info and your *label* on top and its prompt below, ready for Create Video. |
+| **BFS Shot H3 Conditioning** | The common MiniMax H3 path with the important controls only: aligned Add Guide and/or native video reference, references, optional audio conditioning, the Planner's inpaint mode and source-subject blur. |
+| **BFS Shot H3 Conditioning (Advanced)** | The full conditioning node. Adds the setting reference, the first-frame anchor and the experimental mask-guide controls; its `model` input passes through to `model` (older workflows routed the model through it). The duet lives in **BFS Shot H3 Duet** (1.113 took it out of this node). |
+| **BFS Shot Join** | Concatenates the decoded shots in order, trims each to its true length, cross-fades soft joins and returns the soundtrack. With *comparison* on it also returns a side-by-side video (original shot \| references \| result) with the shot's info and your *label* on top and its prompt below, ready for Create Video. *save to = mp4 file* writes the video (and the comparison) straight to MP4 files instead, one shot in memory at a time (long videos); `video_path` gives the file. |
 | **BFS Shot H3 Duet** | Renders one shot with H3: the shot's clip pinned beside the video (duet, no LoRA), the shot as an aligned guide (for body-swap LoRAs), or both. |

 ## The panel
@@ -35,9 +36,9 @@ The planner's panel has five tabs, in the order you work. The timeline stays on
 |---|---|
 | 🎞 **Video** | pick or upload the video, audio, how it is split into shots (cuts or fixed length), generation size |
 | 🎬 **Shots** | one card per shot (scroll sideways, **← →** move between shots), the preview player and the selected shot's editor: reference & prompt, who is replaced (mask, generation mode, `{target}`), continuity, **Copy to other shots** |
-| 👥 **People & masks** | the cast found by face (a reference per person) and the global mask settings |
+| 👥 **People / Filters / Masks** | the cast found by face, shot filters and the global mask settings |
 | 📝 **Prompts & refs** | the global reference and prompt, the VLM and the reference descriptions (`{details}`) |
-| ▶ **Run** | **Checks** (what to fix before running, with a button to each shot), auto / queue loop, filters, test limits |
+| ▶ **Run** | **Checks** (what to fix before running, with a button to each shot) and how the shots run (shot by shot / queue loop / auto loop) |

 Shot cards show badges for what each shot has: 🎯 mask, 🎭 / ✂ generation mode, 🧑 `{target}`, ⛓ continuity and ⚠ problems.
 The header's ⚠ count opens the checks.
@@ -54,13 +55,99 @@ decode) runs once per shot, and shot *i* always gets guide *i*, reference *i* an
 Single values such as the model and VAE are shared by every run. The join takes the whole list
 back (it is an `INPUT_IS_LIST` node) and puts the video together.

-Two run modes:
+Three run modes:

- **Auto loop (one run)**: every shot in one queue run. Simple; holds all decoded shots in memory.
+- **One run, shot by shot (default)**: one Queue renders every shot **in order inside the same run**. Each shot is
+  stored on disk; then BFS Shot Join expands the part of the graph between the planner and itself (ComfyUI node
+  expansion) for the next shot, so that shot is conditioned *after* the previous one exists and continuity
+  (*head* / *history*) works. No browser re-queue (the tab can be closed), Save Video fires once with the full video,
+  and after a failure a new Queue resumes from the stored shots (*Redo all* regenerates every shot). Previews connected inside
+  the shot's part of the graph show every shot. Needs exactly one BFS Shot Planner before the join. Same idea as the
+  recursive loop of Ethanfel's MiniMax H3 Context Loop.
 - **Queue loop (one shot per run)**: each run generates the next pending shot and stores it on
  disk. The join blocks every node after it until the last shot, then outputs the full video,
-  so a Save Video node only fires once. With *Auto-queue the next shot* on, the panel re-queues
-  the workflow after each shot. *Reset loop* starts over. Changing the plan starts a new run.
+  so a Save Video node only fires once. With *Auto-queue the next shot* on (default), the panel re-queues
+  the workflow after each shot, so one click still renders the whole video (keep the ComfyUI tab open: the panel
+  does the re-queue). *Redo all* regenerates every shot. Changing the plan starts a new run. It resumes from the stored
+  shots after a failure, and continuity *head* / *history* needs it: each shot reads the result of the one before.
+- **Auto loop (all shots at once)**: every shot in one queue run, each node runs for every shot before the next node.
+  Holds all decoded shots in memory. Continuity *head* / *history* does not work here (all shots are conditioned
+  before any is sampled).
+
+### Memory
+
+- **Status at the top (🧠)** and a **Memory** card in the Run tab. BFS Shot Join records every shot it receives on
+  this GPU: its size (latent tokens = generated frames, with the continuity head, × resolution) and the peak VRAM of
+  its run. Before running, every planned shot is compared with the **biggest shot that already ran on this GPU**:
+  *✓* within it, *a bit bigger* (it will probably fit, maybe slower), or *⚠ may run out of memory* (also listed in
+  Checks). There is no fixed "GB per frame" for H3 (ComfyUI offloads weights as needed), so nothing is guessed: until
+  a first shot has run, the status says *no memory data yet*. The record lives in ComfyUI's `user/bfs_shotloop_vram.json`.
+- **Between shots** (Run tab, shot by shot and queue loop): *keep models loaded* (fastest) or *free memory*, which
+  unloads every model and empties the GPU after each shot so the next one starts clean (low VRAM, or a later shot
+  that runs out of memory); models load again for every shot, so it is slower.
+- What makes a shot lighter: lower **Megapixels**, a shorter **Max seconds / shot**, **head 5** instead of 22 (the
+  head adds its frames to every shot), **Crop** (the generation is the subject's box), and ComfyUI's own options
+  (`--lowvram`, fp8 / GGUF weights, tiled VAE decode).
+- **The final join** (after the last shot) is where long videos used to run out of **RAM** (not VRAM: the process is
+  killed, e.g. `Terminated` under WSL). It now reads one stored shot at a time into the final video. Measured on 11
+  shots at 960×544 (~50 s): **+15.8 GB before, +8.2 GB now** with *save to = images* (that is the video itself, which an
+  IMAGE output must hold), and **+2.1 GB with *save to = mp4 file***, which streams the video to ffmpeg and stays at
+  about one shot whatever the length (also with the comparison, which is streamed 16 frames at a time: +2.1 GB
+  measured at *comparison_height* 1024, against ~32 GB as images). For long videos use *mp4 file* (BFS Shot Join), or
+  the panel's **Combine**.
+- **RAM guard:** before an *images* join, BFS Shot Join asks ComfyUI's cache to drop earlier outputs and estimates
+  what the video (and the comparison) need; when that does not fit in the free RAM it writes MP4 files instead and
+  says so in the console, instead of the whole ComfyUI being killed.
+- **The outputs are never empty:** with *mp4 file* (chosen or by the RAM guard) the `images` and `comparison` outputs
+  still carry the video, read back from the written files at a size that fits the free RAM (the console says the
+  scale; the files keep the full size), the join shows the files on its node, and `video_path` gives the path.
+- **Default: save_to = images** (the result comes out inside ComfyUI, for the next nodes). The panel's Checks warn when
+  the video is long for this machine (as images it needs about 12 bytes per pixel per frame, ~3.5x with the
+  comparison, against the free RAM) and advise *mp4 file* for that video.
+- **comparison_height** is the height of each column: the comparison is three columns wide plus text bars, so it
+  costs about 3× the video at the same height. 360–512 is plenty to review a long video.
+
+### Stored shots (cache, redo, combine)
+
+In the **shot by shot** and **queue loop** runs every generated shot is stored, and the Run tab's **Stored shots**
+card manages them.
+
+- **Shot cache:** *Keep* (default) stores them in ComfyUI's output folder, `output/bfs_shotloop/<run>`: they survive a
+  restart, so a stopped run resumes and a single shot can be redone. *Temp* uses ComfyUI's temp folder, which ComfyUI
+  **empties at every start** (before 1.104 every run was stored there).
+- **Shot storage** (the format of each stored shot, measured on 145 frames at 1280×720):
+
+  | Storage | Size | Quality |
+  |---|---|---|
+  | **Lossless** (FFV1, default) | ~34 MB | exact: the final video is unchanged |
+  | Smaller (H.264 RGB, crf 8) | ~21 MB | visually lossless (PSNR ~52 dB) |
+  | Smallest (H.264 RGB, crf 14) | ~9 MB | light loss (PSNR ~48 dB) |
+  | Raw frames (`.pt`) | ~401 MB | exact; needs no ffmpeg |
+
+  The final video of a stored run is assembled from the stored shots, and the continuity head reads them: a lossy
+  storage reaches the output (the panel warns). Without ffmpeg a shot falls back to raw frames. With *comparison* on,
+  the shot's source frames for the comparison's original column are kept as `shot_NNNN_orig.mkv` (visually lossless:
+  they are only shown); the `.pt` itself holds only the shot's info (a few KB).
+- **One folder per source video.** Each shot remembers the settings it was made with (its range, prompt, references,
+  mask, crop, continuity, the generation size, the global prompt / references and the references or prompt connected
+  to the planner). The next Queue **runs only the shots that are not stored or whose settings changed**, plus the
+  shots that **continue from a shot that was made again** (head, history, previous shot as reference / first
+  frame), so every seam matches. Shot cards show 💾 (stored, up to date) or ⏳ (runs next time).
+- **Model, LoRA, seed, sampler (1.112.0):** the planner reads them from the queued workflow (every node that feeds
+  BFS Shot Join's `images`: loaders, LoRAs, sampler, seed, conditioning settings), so changing any of them runs every
+  shot again. The join's own settings (crossfade, comparison) don't. A seed set to *randomize* changes on every Queue,
+  so every Queue then runs every shot; fix the seed to keep the stored shots.
+- **↻ Redo** a shot (Stored shots card): it runs again on the next Queue, and the shots that continue from it run
+  after it. Tick *↻ redoes only that shot* to keep the next shots as they are (the seam after it may then not match).
+- **🎬 Combine stored shots:** puts the stored shots together into an MP4 in the output folder **now, without
+  generating** (one shot in memory at a time), on the plan's timeline: the soundtrack, the original video where a
+  shot is skipped, and also where a shot is not stored yet or out of date, so it previews a run in progress. A link
+  to the file appears in the card.
+- When every shot is stored, a Queue still runs the last shot again so the join can output the video: use Combine to
+  only assemble.
+- **Recovering a run outside ComfyUI** (e.g. ComfyUI was killed during the final join):
+  `python tools/bfs_assemble_shots.py output/bfs_shotloop/<run> video.mp4 --audio input/<source video>` (ComfyUI's
+  Python, ffmpeg on the PATH) does the same as Combine with one shot in memory; it reads the old raw `.pt` shots too.

 ## Guide frames and lengths

@@ -78,9 +165,9 @@ camera cuts.
  minimum merge into a neighbour when the merge still fits; shots longer than the maximum split
  into equal parts.
 - **Fixed length**: equal parts no longer than the maximum.
- **One shot (whole range)**: the whole range (start / end frame, *Max total seconds*) as a single shot, whatever its
+- **One shot (whole range)**: the whole selected range as a single shot, whatever its
  length; *Max seconds / shot* is not applied. For "N seconds in one piece" set *Range length, seconds* = N, right
-  next to the mode (it moves the end frame; *Max total seconds* in the Run tab does the same for quick tests).
+  next to the mode (it moves the end frame).
  For pieces of at most X seconds use *Fixed length* with *Max seconds / shot* = X.
 - **By hand**: drag the white handles on the timeline to move a boundary, double-click the
  shot bar to split, *⇥ Merge* to join, or select a shot and press **Delete** to remove the cut at its
@@ -89,11 +176,10 @@ camera cuts.
 **Range** (🎞 Video tab, with its own player): *Start frame* / *End frame* (timeline frames; end 0 = the end of the
 video) limit the plan to a part of the video, before anything is split, analysed or generated. Play or scrub the player
 (or click the timeline) and press *⇤ start here* / *⇥ end here* to take its exact frame. The
-timeline dims what is outside; the join and the soundtrack cover only the range. *Max total seconds* counts from the
-start of the range.
+timeline dims what is outside; the join and the soundtrack cover only the range.

 *Max seconds / shot* is converted to frames and snapped down to the grid (4.5 s at 24 fps =
-107 frames for H3). *Max shots* and *Max total seconds* cap a long source.
+107 frames for H3). *Max shots* in the Video tab caps how many shots are used.

 ## Audio

@@ -111,7 +197,7 @@ that will not run. The panel shows the shot's start, end and current time (and f
 playhead follows on the timeline, and clicking the timeline seeks. The source video streams from
 the input folder, so only what you play is loaded.

-## Filters
+## Shot filters (People / Filters / Masks tab)

 Skip shots that should not run, decided per shot from a few sampled frames:

@@ -141,35 +227,41 @@ default it uses OpenCV Zoo's **YuNet** (detection) + **SFace** (recognition), Ap
 downloaded once into `models/opencv_face` (0.2 + 37 MB). If **InsightFace** is installed (`buffalo_l` in
 `models/insightface`) it is used instead (a bit more accurate; mind its license). Last resort, without either: SAM 3.1
 faces grouped by colours (hair, skin, clothes). Each
-person card shows the face, screen share and first/last appearance (click the face to seek).
-Give a person a reference (and a second one) by clicking the slot, or pick one from the recent
-references; *ignore* leaves that person out. Every shot card shows who is in it, with the main
-person (most screen time) highlighted and linked people outlined in green.
+person card shows the face, screen share and first/last appearance (click the face to seek). The *ignore* checkbox excludes a detected identity from cast-based filters. Every shot card shows the people detected in it, with the main person highlighted.

 | option | effect |
 |---|---|
-| Shots use their main person's reference | a shot without its own reference takes its main person's (shown with a dashed green outline) |
 | Split where the main person changes | adds a boundary where the largest face switches to another person for at least a second, then re-splits |
-| Only run shots with a linked person | shots where no linked, non-ignored person appears are skipped ("no linked person") |
+| Only run shots with a detected person | shots with no detected, non-ignored person are skipped |

-A reference set on the shot itself always wins; the global reference is the last fallback.
+Face identities are used for filtering and optional shot splitting. References and marker colors are selected globally or per shot; they are not assigned to detected identities.

 ## References and prompts

-Every shot can have its own reference, second reference and prompt; shots without them use the
-global ones. Click an empty reference slot to upload an image straight from your computer; a filled
-slot has **✕** to remove it; **Copy to other shots** gives a shot's references to every shot. The last ten
-references you picked are shown under the shot editor for one-click reuse (click = reference,
-shift+click = second reference). Connected `ref_image`, `ref_image_2` and `prompt` inputs override
-the panel's global values, so an edited first frame or a prompt from another node can drive the
-defaults.
+Up to **12 reference pictures** (1.113.0): the global list starts with one slot and **+** adds more; they are
+`<Picture 1>` to `<Picture 12>`, in order. Click a slot to upload a picture (the **+** takes several files at once),
+or drop image files on a slot (replaces it) or anywhere on the box (adds them). A filled slot has **✕**: a global
+picture is taken out (the next ones move up), a shot's own picture falls back to the global one.

-The planner also outputs `ref_image` and `ref_image_2`: the references the shots actually use,
-without repeats, so a plan where every shot shares one reference returns a single image.
+Every shot can have its own pictures and prompt. A shot's empty slot uses the global picture at the same position
+(shown faded), so a shot can change only `<Picture 2>` and keep the rest. **Copy to other shots** gives a shot's
+pictures to every shot. The last ten pictures you picked are shown under the shot editor: click = picture 1,
+shift+click = add it as the next picture, or drag it onto any slot.
+
+Under every prompt (global and per shot) there is a chip per picture: **PictureN** inserts `<Picture N>` at the
+cursor, **📝** inserts `{details@Picture N}` (that picture's description, below).
+
+The node no longer has `ref_image` / `ref_image_2` inputs (the pictures live in the panel); a workflow saved with
+them connected still runs, and the log says the images are ignored. A connected `prompt` input still overrides the
+global prompt. The planner outputs `refs` (every picture the shots use, without repeats, as a list) and `ref_count`
+where `ref_image` / `ref_image_2` were. **BFS Shot Unpack** outputs `refs`, every picture of the shot as a list (the next node runs once per picture,
+e.g. a background remover), and `ref_count`; **BFS Shot Repack**'s `refs` input takes that list back and gives each
+shot its own pictures (a workflow from before 1.113 that wired `ref_image` still works). **BFS Shot H3 Conditioning** passes every picture of the shot (the `use_ref_2` switch left in 1.114: the pictures are chosen in the planner); H3's own
+node stops at 9 and LoRAs trained like OpenJutsu saw up to 9, so the log notes a shot with more.

 ## Mask & crop (SAM 3)

-Generate only part of the frame. In a shot's editor (*Who is replaced*), type what to segment in English
+Generate only part of the frame. In a shot's editor (*Select region*), type what to segment in English
 (`person in white`, `woman with red hair`, `red car`; up to 32 tokens, commas for several things) or click
 **🎯 Points** to pick positive / negative points on any frame of the shot, then **👁 Preview** (red = mask,
 yellow = crop box). Then pick how the shot is generated:
@@ -194,24 +286,18 @@ box (yellow) over the original column (`comparison_mask`, on by default).
 1 regenerates the masked area completely. A grey mask (e.g. 0.85) keeps part of the original there: H3 puts those
 rows at *opacity* × the noise level, so they start from the original partly visible. 0.8-0.9 keeps pose, outline and lighting while still swapping; too low copies the original
 person. With `guide_mode = aligned guide` the model also sees the whole original shot as its guide, so it follows
-the motion either way. (Not applied with the duet panel.)
+the motion either way.

-**🎨 Color Guide** is a separate optional visual cue. Turn it on for a shot with a mask and choose the marker color
-for ref 1. The default colors for the global references are set below each image in **Prompts & refs**; a shot may
-override them. The selected region is tinted in the source guide, while the image detail,
-movement and expression remain visible underneath. This does not turn on `Mask only` or create an H3 generation
-mask. The prompt must explain that the tint is temporary and that the matching reference replaces the tinted person.
-
-For consistency across shots, **People & masks → Find people** groups sampled faces by identity (ArcFace through
-InsightFace when installed; otherwise YuNet + SFace, or a weaker appearance fallback). Choose the matching `Person N`
-in each shot to inherit that cast member's Color Guide color. This is a user-confirmed link: profile views, small faces
-and occlusion can make identity grouping uncertain. Leave the shot on `manual identity` when unsure. The shot's mask
-still selects the actual region to tint, and its color can be overridden for that shot.
-
-For two people in one shot, open **+ Add a second person**, use **ref 2** for that selection, and choose a different
-color (purple by default; duplicate colors are disabled). Enable *use_ref_2* on BFS Shot H3 Conditioning. The
-second SAM 3 text selection is optional; preview it before queuing. Color opacity and ArcFace identity links are
-under the optional settings. Use this prompt and replace the color names if you choose another palette:
+**🎨 Colored Mark** is an optional translucent overlay on the source video: each marked person is tinted with the
+color of the picture they become, and the prompt gets the mapping ("the person marked in red becomes the character
+from `<Picture 3>`"), for any model or LoRA. Every picture has its **Mark color** (under it in **Prompts & refs**:
+green, purple, red, blue, yellow, magenta, cyan, orange, white, brown, pink, olive by default); change it when it is
+too close to a color in the video. In a shot, turn on Colored Mark and pick which picture the shot's selection (its
+SAM 3 text or points) becomes; **+ Mark another person** adds a person with their own picture and text or 🎯 points
+(the points window has one point set per person). This is only a visual marker: it does not create an inpainting mask
+or change **Full frame**, **Mask only** or crop behavior. More than one marked person needs Crop off, and the
+shot must have every picture the marks use. The overlay keeps movement and facial
+expression visible. Plans before 1.113 (a second region for ref 2) open with that region as `<Picture 2>`.

 ```text
 body_swap: subject_definitions: <Subject 1> is the character shown in <Picture 1>, whose identity, face, head, hair or fur, skin, body shape, proportions and clothing define the green-marked replacement. <Subject 2> is the character shown in <Picture 2>, whose identity, face, head, hair or fur, skin, body shape, proportions and clothing define the purple-marked replacement. In the guide video, the translucent green and purple tints are temporary editing markers, not character appearance. Replace the green-tinted person only with <Subject 1> and the purple-tinted person only with <Subject 2>. The guide video provides the scene and the complete performance of both people, including their body poses, gestures, head motion, gaze, speech and facial expressions.
@@ -223,10 +309,8 @@ detailed_description: [Shot 1] Replace the person marked by the translucent gree

 The VLM's shot analysis suggests a SAM 3 text selection from the original frames; it does not assign guide colors or
 decide that two detections are the same identity. **Describe target** only describes the first shot selection. For
-two-color swaps, choose both selections and identities yourself, and use the explicit mapping above. The VLM prompt
-writer for *duet* is a separate split-screen task; its generic character-swap draft assumes the supplied pictures
-show one character, so use *planner prompt* for this two-character template. `Describe refs` also treats ref and ref 2
-as views of one identity; write the two subject definitions explicitly when ref 2 is a different person.
+two-color swaps, choose both selections and identities yourself, and use the explicit mapping above (or let
+🤖 Auto prompt write it: it is told which tinted person becomes which picture).

 **Mask guide** (experimental, *Mask only* shots, BFS Shot H3 Conditioning → `mask_guide`): the shot with only the
 masked region visible, the rest grey, so the model looks at the subject's pose and outline on its own while the mask
@@ -246,7 +330,7 @@ Crop + mask), `{target}`, the setting picture and the comparison overlay. Three
 | shot editor → **🎞 mask video** | only that shot (its first frame = the shot's first frame) | everything |
 | the shot's own SAM 3 text / points | that shot | the two below |
 | the planner's optional **`mask`** input (MASK or IMAGE batch, e.g. Load Video + Convert Image to Mask) | the whole video, one mask per source frame | the panel's mask video |
-| People & masks → **🎞 Mask video (whole video)** | the whole video, matched by time | SAM 3 for shots without a mask |
+| People / Filters / Masks → **🎞 Mask video (whole video)** | the whole video, matched by time | SAM 3 for shots without a mask |

 Any size and frame rate: it is matched to the shot by time and resized. The console says which mask each shot used.

@@ -271,8 +355,8 @@ Credit to **Neko (Nekodificador)** and **AbleJones**, whose workflow and nodes t
 ComfyUI builds without native H3 generation masks need a per-row mask patch on the model
 (e.g. ComfyUI-MiniMaxH3-PerRowMasking).

-The **People & masks** tab holds the global mask settings, with defaults that work as they are: fill holes on,
-temporal expand 2 frames (less flicker), expand 16 px, feather 12 px, padding 15 %, paste by mask, blockify off
+The **People / Filters / Masks** tab holds the global mask settings, with defaults that work as they are: fill holes on,
+temporal expand 2 frames (less flicker), expand 16 px, feather 12 px, padding 15 %, paste the whole box with feathered edges, blockify off
 (16 aligns the mask to H3's latent grid), threshold 0.5, 4 objects. *Show masks on shots* overlays the preview
 on the shot cards. SAM 3 uses the official `sam3.1_multiplex_fp16.safetensors` in `models/checkpoints`,
 downloaded from Comfy-Org/sam3.1 the first time.
@@ -290,12 +374,95 @@ editor shows its suggestion with buttons to apply it. The summary output lists t

 The VLM can describe the references, for any task (not tied to swaps), and any subject: a person, a creature, a robot,
 an animal or a cartoon character (it says what the subject is first). In the **Prompts & refs** tab pick an instruction
-preset: *short* (the default: one noun phrase of at most ~20 words that fits inside a sentence, e.g. `green goblin with
+preset: *object* (a noun phrase for a prop, product, vehicle...: what it is, shape, materials, colors, text), *short* (the default: one noun phrase of at most ~20 words that fits inside a sentence, e.g. `green goblin with
 long pointed ears in a torn brown leather vest`, for `<Subject 1> is the {details} shown in <Picture 1>`), *full body* (face, hair, skin, age, build, clothing piece by piece), *head / face*, *face attributes* (a
 short comma-separated list), *outfit*, or *custom* (your own instruction). **📝 Describe refs** writes one
-description per reference set: the global references, every shot's and every cast person's. They are saved in
-the plan and editable. Write **`{details}`** anywhere in a prompt and every shot gets the description of its own
-references; a set without a description is described by the VLM at run time (no click needed).
+description per picture (see below), saved in the plan and editable. Write **`{details}`** anywhere in a prompt and
+every shot gets the description of its own first picture; a picture without a description is described by the VLM
+at run time (no click needed).
+
+**Image max side (VLM)** controls the longest side of reference and shot images prepared for VLM analysis (1024 px by
+default). Aspect ratio is preserved; the model's own image processor may resize them further. Increase it when fine
+reference details matter, or lower it to reduce analysis cost. This does not change the generated video size.
+
+When a shot has two references, the planner expands a one-reference template at run time to include `<Subject 2>` and
+`{details2}` for `<Picture 2>` (not when the prompt already names `<Picture 2>` or uses `{details@Picture n}`). 
+Existing one-reference templates remain unchanged in shots with only one reference. You can also use `{details2}`
+explicitly in any template.
+
+### 🤖 Auto prompt (1.113.0)
+
+**Visual edits and color bindings (1.115.4):** the guide fixes the assigned performers' motion, action timing,
+head movement, gaze and expressions. Explicitly request the target style, background, lighting, weather, outfit
+or camera changes. For example: `Replace the man with the goblin from <Picture 1>, render the whole scene in anime
+style, and use the hall from <Picture 2> as the setting. Keep the guide performance and timing.` A setting can also
+be described in text. Use **full frame** generation for changes to the entire scene; masked generation only changes
+the generated region.
+
+References can have different roles. In the example above, Picture 1 defines the character and Picture 2 defines
+the environment. To describe the latter, choose **scene / setting** in that picture's description preset. For several
+characters, bind colors only to their character references: `The subject marked in green uses <Picture 1>; the subject
+marked in purple uses <Picture 2>; <Picture 3> defines the setting.` Picture indices stay unchanged. A marking color
+identifies the same performer across position changes, occlusion and cuts; it is not a target skin/clothing color.
+Facial highlights are performance annotations. Prompt wording is generic and does not require a specific 2D/3D marking
+implementation. This update changes prompt writing, not the existing marking renderer or tracking behavior.
+
+After updating, restart ComfyUI, hard-refresh the browser and click **Write all prompts** to regenerate previously
+written prompts with these rules. Existing written prompts are preserved until rewritten.
+
+**1.115.5:** a setting replacement alone does not request a new rendering style. The writer preserves the source
+medium unless the actual request or an explicitly designated style reference changes it; instructional examples
+must not supply unrequested target attributes. For background replacement, use full-frame generation, disable
+paste/crop-only composition and inpainting outside a subject mask, set **first_frame** to **none**, and leave
+**setting_ref** off (that option adds the original source location). The full aligned guide still contains source
+scene geometry, so a correct prompt alone does not guarantee complete background replacement by a checkpoint.
+
+In **Prompts & refs → 🤖 Auto prompt**, *Write the prompts with the VLM* turns the prompt boxes (global and per shot)
+into **requests** ("replace the bottle with the red can from Picture 2", "Picture 1 dances in the rain"), and the VLM
+writes each shot's MiniMax H3 prompt in the official full-reference format (MiniMaxAI/MiniMax-H3
+`docs/VIDEO_PROMPT_WRITING_GUIDE_ref_en.md`): `subject_definitions`, `summary` with its task type, `retention_analysis`,
+`detailed_description` (`[Shot 1]`, the official camera vocabulary, sounds in time), `overall_soundscape` and
+`non_diegetic_music`. It looks at:
+
+- **key frames of the shot** with their times (*Key frames*: auto = about 1.5 per second, 3 to 8);
+- **the shot's pictures** and their descriptions (Describe references);
+- **the request**, the shot's **Colored Marks** (which tinted person becomes which picture; the mapping is added if the
+  writer leaves a color out), its selection / `{target}` and its mode (*Mask only*: only the subject is regenerated;
+  *Crop*: the frames are a crop);
+- **how the source is given**: *guide video* (aligned guide, no tag) or `<Video 1>` (native reference video) — match the
+  conditioning node's `guide_mode`.
+
+**Template:** with Auto prompt on, the planner's `prompt` input (e.g. the template a LoRA was trained with,
+`body_swap: subject_definitions: ...`) is the **template** and the panel's text is the **request** applied to it
+("Troque a mulher no vídeo pela mulher da <Picture 1>"). The template is kept as it is: same sentences, same order, its
+trigger word first; the writer applies the request, adds the pictures' visible features and, after `[Shot 1]`, this
+shot's camera, place, light and actions. The panel's 🤖 Write uses the template of the last run (shown in the card).
+A request that is itself a whole prompt (H3 sections) is used as the template the same way. **Style** picks how a prompt without template is written: *H3
+official* (the six sections) or *OpenJutsu captions*, the short style of the OpenJutsu training captions ("Replace the
+dog in the video with the gaunt goblin … from <Picture 1>. Replace the cat … from <Picture 2>. Keep the same background
+and location as in the video, and maintain the motion, camera angle, and timing."). Without a template, a
+short request gets the full six-section prompt. Without a VLM, the template (else the request) is the prompt.
+
+**Cuts:** the writer gets the shot's real camera cuts (the planner's cut detector) and writes `[Shot N] At MM:SS.mmm`
+exactly there, with at least one key frame in each piece between cuts; a shot with no cut gets no timestamp at all.
+Labels always keep their `< >`.
+
+**🤖 Write all prompts** (or *only the missing*) writes them now; each shot shows its written prompt in the Shots tab,
+editable, with **🤖 Write / Write again**. A shot without one is written when the workflow runs (with the VLM on the
+planner, before any SAM 3 work) and the panel keeps it, so the next run uses the same text. When the request,
+pictures, marks, selection or mode change after a prompt was written, the shot says it is *older*; it is still used
+until you write it again. A written prompt is part of the stored shot's signature, so editing it re-renders the shot.
+Without a VLM and without a written prompt, the request is used as the prompt.
+
+### One description per picture (1.113.0)
+
+Descriptions are per picture: **📝 Describe refs** describes every picture the plan uses by itself, once per image.
+`{details}` is picture 1's description, `{details2}` picture 2's and **`{details@Picture n}`** (or
+`{details@Picture3}`) picture n's, so each shot gets the descriptions of *its* pictures. The dropdown next to the button
+sets what is described for every picture; a picture can have its own (e.g. *full body* for a character sheet, *head /
+face* for a close-up, *outfit*, or *custom* with its own instruction), and **🔄** describes only that picture again. A
+picture without a description is described at run time by the planner's VLM, else by the conditioning node's VLM, else
+it becomes "character". Descriptions saved by older plans (per reference set) are read as those pictures'.

 **Fit the prompt** (on by default, next to 📝 Describe refs): the VLM gets the sentence of the prompt that holds the
 marker, with a blank in its place (e.g. `<Subject 1> is the ___ shown in <Picture 1>`), and writes the description for
@@ -318,13 +485,13 @@ Every setting in the panel has a hover tooltip (ⓘ). The main ones:
 | Frame grid | frame counts the model accepts (H3 17n+5, LTX/Wan 8n+1, Wan 4n+1) |
 | Max / Min seconds per shot | longest shot sent to the model; shorter shots merge into a neighbour |
 | Timeline fps | the frame rate the planner works on (generation and audio use it) |
-| Max shots / Max total seconds | test on the first shots or seconds only |
-| Megapixels / Size multiple | generation size at the source's aspect ratio, snapped to the multiple |
-| Run | auto loop (all shots in one run) or queue loop (one shot per run, stored on disk) |
+| Max shots | test on the first shots only |
+| Generation size | Megapixels (default), source video resolution, or custom width and height; dimensions snap to the size multiple |
+| Run | one run, shot by shot (default) / queue loop (one shot per run) / auto loop (all shots at once) |
 | Skipped shots in the output | keep the original video there or remove those shots |
 | Mask: padding / expand / feather / temporal expand / blockify | crop context, paste-back growth and softness, flicker hold, square blocks |
 | Mask: threshold / max objects / paste back | SAM 3 text matching, objects tracked, paste only the mask or the whole box |
-| VLM: frames per shot / max tokens | how much the VLM sees and how long it may answer |
+| VLM: frames per shot / max tokens / image max side | how much the VLM sees, its answer limit, and the longest side of images sent for analysis |

 ## One seed per shot: BFS Shot Seed (1.94.0)

@@ -357,15 +524,37 @@ references before any SAM 3 work; with no VLM on the planner, the slot is left f
 **BFS Shot H3 Duet**, whose `vlm` input (the same Qwen3-VL CLIPLoader) describes them (the *short* preset, fitted to
 the sentence). Edited descriptions always win. With no VLM anywhere it becomes "character" and the log says so.

-## Source blur (keep the mouth) (1.91.0)
+## Source blur (1.91.0, finer in 1.110.0)

-`source_blur` on **BFS Shot H3 Conditioning**, **BFS Shot H3 Duet**, **BFS H3 Duet** and **BFS H3 Duet Conditioning**
-blurs the source person in what the model *sees* of the source (aligned guide, native reference video, duet panel),
-keeping the **mouth** sharp: the model still reads the pose, the motion and the lips but has no face to copy, so the
-identity comes from the reference. Masks from SAM 3.1 (the part, minus a slightly grown "mouth" mask), cached per shot.
-`face (keep mouth)`, `head + hands (keep mouth)` (also hides hair and hands), `person (keep mouth)` (the whole body:
-only for big changes, the pose then comes from the blurred shape). The kept area of *Mask only* and the output are
-never blurred. Trick shared by JalenBrunson (Sapiens2 there) for reliable ref2v swaps.
+`source_blur` on **BFS Shot H3 Conditioning** (and its Simple version), **BFS Shot H3 Duet**, **BFS H3 Duet** and
+**BFS H3 Duet Conditioning** blurs the source person in what the model *sees* of the source (aligned guide, native
+reference video, duet panel): the model still reads the pose and the motion but has no face to copy, so the identity
+comes from the reference. The kept area of *Mask only* and the output are never blurred. Trick shared by JalenBrunson
+(Sapiens2 there) for reliable ref2v swaps.
+
+Modes read `<region> (<what stays sharp>)`:
+
+| region | what is blurred |
+|---|---|
+| `face` | the face (and neck) |
+| `head + hands` | also the hair and the hands |
+| `person` | the whole body: only for big changes, the pose then comes from the blurred shape |
+| `masked area` | the shot's own mask (the person being replaced, with its expand); no extra segmentation. Without a mask on the shot (or in the plain Duet nodes) it blurs the whole person |
+
+| sharp | |
+|---|---|
+| `keep mouth` | lips, teeth and tongue stay sharp (the lips carry a lot of the likeness and the lip sync) |
+| `keep lips + tongue` | the teeth are blurred too (always uses Sapiens2 for the lips) |
+| `mouth too` | nothing stays sharp |
+
+`source_blur_segmenter`: **SAM 3.1** (text prompts, already used by the planner; the 1.91 behaviour) or **Sapiens2**
+(Meta's body-part segmentation, 28 classes with lips, teeth and tongue apart from the face; one pass for every part,
+finer around the mouth). Sapiens2 marks every person in the frame, like the SAM prompts here. Its weights
+(`facebook/sapiens2-seg-0.4b`, 1.6 GB) download to `models/sapiens2/` the first time; it runs on the GPU in half
+precision and goes back to RAM after each shot. Sapiens2 License.
+
+`source_blur_effect`: **blur** (no detail left) or **invert colours** (keeps the shapes and the expression but not the
+skin tone or the colours; some users get better likeness with it).

 ## Big videos (upload)

@@ -387,22 +576,21 @@ references (good across camera cuts, keeps the person consistent), and *previous
 at frame 0 of the shot (for continuous action without a cut). Pick which frame: the previous result's first,
 middle or last. **Copy to other shots** with *continuity* ticked applies it to every shot after the first.

-It needs the previous result to exist: it works in the **queue loop** (the planner reads the stored result) and in
+It needs the previous result to exist: it works **shot by shot** and in the **queue loop** (the planner reads the stored result) and in
 the **auto loop with BFS Shot H3 Duet** (it renders shot by shot and keeps the last result). BFS Shot Unpack also
 outputs it as `previous_result`. This is different from H3 Conditioning's *first_frame*, which anchors the shot's
 own frame from the source video.

 ### History: a long take, window by window (1.87.0)

-*Continuity* = **previous shot's end as history** carries the **last 17, 34 or 51 frames of the previous shot's
+*Continuity* = **previous shot's end as history** carries the **last 5, 22, 39 or 56 frames of the previous shot's
 result** into the next shot as clean frames placed **just before frame 0 on H3's timeline**: the model sees them as
 the immediate past of the video it is generating, so motion, camera, light and the new look continue across the join
 (instead of one still frame). Idea from Akatz's [H3 Relay](https://github.com/akatz-ai/h3-relay) windowed edit and
 Ethanfel's MiniMax H3 Context Loop; this is BFS's own implementation (a process-local patch of H3's packed layout
 that moves the video, its audio and the other guides past the history; ComfyUI files are not edited).

- **On by default** (1.88.0) for every shot after the first; set *Continuity = off* on a shot to drop it. Plans saved
-  before keep what they had.
+- Plans saved before keep what they had; *head* (below) is now the default for new shots.
 - **Same take only.** A shot that starts at a camera cut skips it (nothing to continue). For one long take, split it
  with *Mode = fixed length* (or let *Camera cuts* split long shots) and set history on every shot after the first
  with **Copy to other shots → continuity**. Shots still exist: they are the windows, and cuts reset the history.
@@ -411,9 +599,39 @@ that moves the video, its audio and the other guides past the history; ComfyUI f
  under the history go into the panel strip). Not with duet *shifted RoPE*. The aligned guide still drives this shot's
  own frames, so sync stays frame-exact.
 - **BFS Shot H3 Conditioning and BFS Shot H3 Duet** both use it (duet canvas or aligned guide).
- **Queue loop:** shots run in order and each reads the stored result of the one before. Auto loop: taken from the
-  previous render when it matches.
- Video only for now (the previous audio is not carried). Costs one more 17/34/51-frame condition per shot.
+- **Shot by shot / queue loop:** shots run in order and each reads the stored result of the one before. Auto loop: taken
+  from the previous render when it matches.
+- Video only for now (the previous audio is not carried). History can use 5, 22, 39 or 56 frames; longer windows use more memory.
+- **Only 17k+5 frames work.** H3's VAE encodes 17-frame clips into 5 latent steps and drops the last 3 steps of the
+  whole video, so 17 frames come back as just their *first 5*: the old 17 / 34 / 51 options left a 12-frame (0.5 s)
+  hole between the history and the shot, seen as a jump or drift at every join. Plans saved with 17 / 34 / 51 are
+  read as 22 / 39 / 56.
+
+### Head: the shot starts on the previous result (default)
+
+*Continuity* = **previous shot's end as this shot's start** generates the shot from **5, 22 or 39 frames earlier**:
+those first frames are the previous shot's result, encoded **into this shot's latent** and kept by the sampler
+(noise mask 0), so they are **not generated or swapped again**, and the new frames continue straight from them.
+BFS Shot Join cuts them off, so the timing is unchanged. Same masked-prefix continuation as the Context Loop's
+*masked AV* mode, whose tested default is 22.
+
+- **On by default, 22 frames**, for every shot after the first. Set *Continuity = off* (or *history*) to change it.
+- **Same take only:** skipped at a camera cut, after a skipped shot, and on grids other than H3's.
+- **Shot by shot or queue loop.** In the auto loop the previous result does not exist yet when the shot is conditioned,
+  so the planner generates the shot without a head (and says so in the console).
+- Works with full frame, *Frame + paste*, *Mask only* / *Crop + mask* (the head is kept whatever the mask says), *Crop*
+  (the head is cut with this shot's box) and the duet canvas. Not with duet *shifted RoPE*. Pinned in
+  **BFS Shot H3 Conditioning**; other workflows still generate and cut the extra frames.
+- Costs those frames of generation per shot (a 60-frame shot is generated at 90 frames instead of 73).
+- **Keep colors** (BFS Shot Join, on by default). A shot that starts on the previous result comes out a little more
+  saturated right after it, and the next shot inherits that: measured on a 5-shot take, the new subject's saturation
+  went 75 → 88 → 105 → 124, with almost no change *inside* each shot (the jump is at every join). With *keep_colors*
+  the first shot of each take records its subject's colours, and every shot that continues from the one before has
+  its subject's chroma (CIELAB a, b: one transform per shot, so no flicker) matched to them before it is stored; the
+  next shot then starts from the anchored colours and nothing accumulates (same take: 69–73 on every shot). The
+  subject is where the result differs from the source video (soft edge); the background and the lightness are not
+  touched. A camera cut or a shot without continuity starts a new take (new anchor). *keep_colors_strength* blends it
+  (1 = fully). It applies to stored runs (shot by shot, queue loop), where continuity exists.

 ## MiniMax H3 with an aligned guide (example)

@@ -424,7 +642,7 @@ BFS Shot Join ◄── images ────────────────
      └─► Create Video (fps, audio) ─► Save Video
 ```

-For other models, use **BFS Shot Unpack** and wire `guide_frames`, `ref_image`, `prompt` and
+For other models, use **BFS Shot Unpack** and wire `guide_frames`, `refs`, `prompt` and
 `length` into that model's own guide and reference nodes; the list mapping works the same way.

 ## Choosing who is replaced (`{target}`), step by step
@@ -481,7 +699,7 @@ Then save:
 **🎯 Track → whole video** (in the points window) is for a person who moves around: the selection is tracked by SAM 3
 through the whole video (or the range), forward and backward from the frame you clicked on, and every shot without
 its own selection takes its part of that track. Also type a short text (e.g. `woman in pink top`): after a camera cut
-the tracker uses it to find the subject again. The People & masks tab shows the track and removes it. The first run
+the tracker uses it to find the subject again. The People / Filters / Masks tab shows the track and removes it. The first run
 tracks the whole range (a minute or two per few hundred frames); the result is cached until the selection changes.

 ### 3. Describe the person
@@ -528,3 +746,19 @@ or *Crop + mask*.
 | Only the face or the hair is described | the click was on the head: click the body |
 | The other person is described | add an exclude point (right-click) on the other person, **👁 Segment**, save, describe again |
 | The swap still hits the wrong person | make the description more specific (position: "on the left", clothing colours) |
+
+### Cancel a pending redo
+
+After marking a stored shot for redo, click **Undo redo** to keep its previous take.
+**Clear redo selection** cancels all pending redo selections and preserves stored files and loop progress.
+Once a shot has been regenerated, its previous take cannot be restored through this control.
+**Refresh status** rereads the cache status; it cannot recover files deleted by older versions of Reset loop.
+Changing the seed, model or other render settings still invalidates stored shots even after cancelling redo.
+
+### Experimental native temporal motion transfer
+
+`BFS Shot H3 Conditioning` now has **native temporal alignment (experimental)** in `guide_mode`. Connect MODEL in and route its MODEL output to the guider. This uses the matching experimental LoRA, the shot as native `<Video 1>`, temporal RoPE alignment and soft temporal attention; it does not use Add Guide. Use 24 fps and disable continuity/first-frame/mask guides and VSA. Simple appends a MODEL output without moving existing outputs. The standalone **BFS MiniMax H3 Native Temporal Alignment (Experimental)** node provides the same patch for native workflows. See `H3_NATIVE_TEMPORAL.md` for the full contract and validation limits.
+
+Native temporal performance (1.115.11): `native_temporal_backend` defaults to `flash partitions (no compile)`, preserving the same temporal penalty. `native_guide_scale` can reduce only guide resolution (try 0.5); output dimensions and frame count stay unchanged. The original Flex backend remains available for comparison.
+
+Prompt bindings (1.115.12): completed short captions are no longer expanded into legacy two-subject templates. Auto-written prompts whose request/reference/mark signature is outdated are regenerated with a connected Planner VLM; otherwise use Write again before rendering. The writer rejects picture indices beyond the connected references after its bounded retry. Character outfits come from identity references, while requested setting changes override conflicting source scenery/lighting.
@@ -19,6 +19,27 @@ const TEXT = {
  "▶ Run": ["▶ Executar", "▶ Ejecutar", "▶ 运行"], "📖 Guide": ["📖 Guia", "📖 Guía", "📖 指南"],
  "🧭 Tour": ["🧭 Tour", "🧭 Recorrido", "🧭 引导"], "Language": ["Idioma", "Idioma", "语言"],
  "Source video": ["Vídeo de origem", "Vídeo de origen", "源视频"], "Range": ["Trecho", "Rango", "范围"],
+  "Timeline": ["Linha do tempo", "Línea de tiempo", "时间轴"], "zoom": ["zoom", "zoom", "缩放"],
+  "Click a shot to select it (← → move between shots) · drag the white handles to move a boundary · double-click the shot bar to split · Delete removes the selected shot's cut": [
+    "Clique em um plano para selecioná-lo (← → navega entre planos) · arraste as alças brancas para mover uma divisão · dê dois cliques na barra para dividir · Delete remove o corte do plano selecionado",
+    "Haz clic en un plano para seleccionarlo (← → cambia de plano) · arrastra los controles blancos para mover un límite · haz doble clic en la barra para dividir · Delete elimina el corte del plano seleccionado",
+    "点击镜头以选中（← → 切换镜头）· 拖动白色控点移动分界 · 双击镜头条进行拆分 · 按 Delete 删除所选镜头的切点",
+  ],
+  "camera cuts or fixed length, on the model's frame grid": ["cortes de câmera ou duração fixa, na grade de frames do modelo", "cortes de cámara o duración fija, según la cuadrícula de fotogramas del modelo", "按镜头切换或固定时长，并符合模型帧步长"],
+  "Range length, seconds (0 = to the end)": ["Duração do trecho, em segundos (0 = até o fim)", "Duración del tramo, en segundos (0 = hasta el final)", "片段时长（秒，0 = 到结尾）"],
+  "refresh the input folder": ["atualizar a pasta de entrada", "actualizar la carpeta de entrada", "刷新输入文件夹"],
+  "Pick or upload a video to start": ["Escolha ou envie um vídeo para começar", "Elige o sube un vídeo para empezar", "选择或上传视频以开始"],
+  "use the video’s audio": ["usar o áudio do vídeo", "usar el audio del vídeo", "使用视频音频"],
+  "The outputs carry a silent track of the right length, so Create Video works": ["As saídas incluem uma faixa silenciosa com a duração correta para funcionar em Create Video", "Las salidas incluyen una pista silenciosa con la duración correcta para que funcione Create Video", "输出会带有时长正确的静音音轨，以便 Create Video 正常工作"],
+  "Audio of the planner's and the join's outputs": ["Áudio das saídas do Planner e do Join", "Audio de las salidas del Planner y del Join", "Planner 和 Join 输出的音频"],
+  "the range ends after the player's frame": ["o trecho termina depois do frame atual do player", "el tramo termina después del fotograma actual del reproductor", "片段在播放器当前帧之后结束"],
+  "Play or scrub the video (or click the timeline), then ⇤ / ⇥. {…} frames ({…} s) of {…}: only this part is split, analysed, generated and joined.": ["Reproduza ou avance o vídeo (ou clique na linha do tempo) e use ⇤ / ⇥. {…} frames ({…} s) de {…}: somente este trecho será dividido, analisado, gerado e unido.", "Reproduce o desplaza el vídeo (o haz clic en la línea de tiempo) y usa ⇤ / ⇥. {…} fotogramas ({…} s) de {…}: solo se dividirá, analizará, generará y unirá este tramo.", "播放或拖动视频（也可点击时间轴），然后按 ⇤ / ⇥。共 {…}/{…} 帧（{…} 秒）：仅拆分、分析、生成并合并此片段。"],
+  "15 s in one shot": ["15 s em um único plano", "15 s en un solo plano", "单镜头 15 秒"],
+  "from the start frame · {…} frames": ["a partir do frame inicial · {…} frames", "desde el fotograma inicial · {…} fotogramas", "从起始帧开始 · {…} 帧"],
+  "limit how many detected shots are used": ["limita quantos planos detectados serão usados", "limita cuántos planos detectados se usan", "限制使用的检测镜头数量"],
+  "Auto split replaces the boundaries; per-shot settings stay with the shot at the same position.": ["A divisão automática substitui os limites; as configurações por plano permanecem na mesma posição.", "La división automática reemplaza los límites; los ajustes por plano se mantienen en la misma posición.", "自动拆分会替换分界；逐镜头设置保留在相同位置。"],
+  "before the start: not planned": ["antes do início: fora do plano", "antes del inicio: no incluido", "起点之前：不处理"],
+  "after the end: not planned": ["depois do fim: fora do plano", "después del final: no incluido", "终点之后：不处理"],
  "Split into shots": ["Dividir em planos", "Dividir en planos", "拆分镜头"], "Generation size": ["Tamanho da geração", "Tamaño de generación", "生成尺寸"],
  "Camera cuts": ["Cortes de câmera", "Cortes de cámara", "镜头切换"], "Fixed length": ["Duração fixa", "Duración fija", "固定时长"],
  "One shot (whole range)": ["Um plano (trecho inteiro)", "Un plano (rango completo)", "单个镜头（整个范围）"],
@@ -26,17 +47,27 @@ const TEXT = {
  "Frame grid": ["Grade de frames", "Múltiplo de fotogramas", "帧步长"], "Max seconds / shot": ["Máx. segundos por plano", "Máx. segundos por plano", "每个镜头最长秒数"],
  "Min seconds / shot": ["Mín. segundos por plano", "Mín. segundos por plano", "每个镜头最短秒数"], "Timeline fps": ["FPS da linha do tempo", "FPS de la línea de tiempo", "时间轴帧率"],
  "Megapixels": ["Megapixels", "Megapíxeles", "百万像素"], "Size multiple": ["Múltiplo do tamanho", "Múltiplo del tamaño", "尺寸倍数"],
+  "Size mode": ["Modo de tamanho", "Modo de tamaño", "尺寸模式"], "Megapixel target": ["Alvo em megapixels", "Objetivo en megapíxeles", "百万像素目标"],
+  "Original video": ["Vídeo original", "Vídeo original", "原视频"], "Custom dimensions": ["Dimensões personalizadas", "Dimensiones personalizadas", "自定义尺寸"],
+  "Output size": ["Tamanho de saída", "Tamaño de salida", "输出尺寸"],
+  "Custom width": ["Largura personalizada", "Ancho personalizado", "自定义宽度"], "Custom height": ["Altura personalizada", "Alto personalizado", "自定义高度"],
+  "Image max side (VLM)": ["Lado máximo da imagem (VLM)", "Lado máximo de imagen (VLM)", "VLM 图像最长边"],
+  "VLM image sizing": ["Redimensiona as imagens enviadas ao VLM, mantendo a proporção. O processador do modelo ainda pode redimensioná-las.", "Ajusta las imágenes enviadas al VLM manteniendo la proporción. El procesador del modelo puede volver a ajustarlas.", "调整发送给 VLM 的图像并保持比例。模型处理器仍可能再次缩放。"],
+  "Original resolution is rounded to the size multiple for model compatibility.": ["A resolução original é arredondada ao múltiplo definido para compatibilidade com o modelo.", "La resolución original se redondea al múltiplo indicado para compatibilidad con el modelo.", "原始分辨率会取整到尺寸倍数，以兼容模型。"],
  "✂ Auto split": ["✂ Dividir automaticamente", "✂ División automática", "✂ 自动拆分"], "↻ Re-analyse": ["↻ Analisar novamente", "↻ Volver a analizar", "↻ 重新分析"],
  "Reference & prompt": ["Referência e prompt", "Referencia y prompt", "参考图和提示词"], "Who is replaced": ["Quem será substituído", "Quién se reemplaza", "替换对象"],
  "Continuity": ["Continuidade", "Continuidad", "连续性"], "Copy to other shots": ["Copiar para outros planos", "Copiar a otros planos", "复制到其他镜头"],
  "Global reference & prompt": ["Referência e prompt globais", "Referencia y prompt globales", "全局参考图和提示词"],
  "Describe references ({details})": ["Descrever referências ({details})", "Describir referencias ({details})", "描述参考图（{details}）"],
+  "Ref 1 description ({details})": ["Descrição da ref. 1 ({details})", "Descripción de ref. 1 ({details})", "参考图 1 描述（{details}）"],
+  "Ref 2 description ({details2})": ["Descrição da ref. 2 ({details2})", "Descripción de ref. 2 ({details2})", "参考图 2 描述（{details2}）"],
+  "no description yet: Describe refs, write your own, or leave it to the VLM at run time": ["sem descrição: use Descrever referências, escreva uma descrição ou deixe o VLM gerar durante a execução", "sin descripción: pulsa Describir referencias, escribe una o deja que el VLM la genere al ejecutar", "暂无描述：点击“描述参考图”、自行填写，或在运行时由 VLM 生成"],
  "VLM": ["VLM", "VLM", "视觉语言模型"], "Use the VLM when the workflow runs": ["Usar o VLM ao executar o workflow", "Usar el VLM al ejecutar el flujo", "运行工作流时使用 VLM"],
  "Fill the mask text": ["Preencher o texto da máscara", "Completar el texto de la máscara", "填写蒙版描述"],
  "Fill {shot} in the prompt": ["Preencher {shot} no prompt", "Completar {shot} en el prompt", "在提示词中填入 {shot}"],
  "Frames per shot": ["Frames por plano", "Fotogramas por plano", "每个镜头的帧数"], "Max tokens": ["Máx. tokens", "Máx. tokens", "最大 token 数"],
  "🤖 Analyse shots": ["🤖 Analisar planos", "🤖 Analizar planos", "🤖 分析镜头"], "📝 Describe refs": ["📝 Descrever referências", "📝 Describir referencias", "📝 描述参考图"],
-  "🎨 Color Guide": ["🎨 Guia de cores", "🎨 Guía de color", "🎨 颜色引导"], "Ref 1 color": ["Cor da ref. 1", "Color de ref. 1", "参考图 1 的颜色"],
+  "🎨 Colored Mark": ["🎨 Marcação colorida", "🎨 Marca de color", "🎨 彩色标记"], "Colored Mark": ["Marcação colorida", "Marca de color", "彩色标记"], "Ref 1 color": ["Cor da ref. 1", "Color de ref. 1", "参考图 1 的颜色"],
  "Ref 2": ["Ref. 2", "Ref. 2", "参考图 2"], "+ Add a second person (optional)": ["+ Adicionar segunda pessoa (opcional)", "+ Añadir segunda persona (opcional)", "+ 添加第二个人（可选）"],
  "Second person · Ref 2": ["Segunda pessoa · Ref. 2", "Segunda persona · Ref. 2", "第二个人 · 参考图 2"],
  "Describe the second person for SAM 3": ["Descreva a segunda pessoa para o SAM 3", "Describe la segunda persona para SAM 3", "为 SAM 3 描述第二个人"],
@@ -49,8 +80,7 @@ const TEXT = {
  "🎭 Mask only": ["🎭 Somente máscara", "🎭 Solo máscara", "🎭 仅蒙版"], "✂ Crop": ["✂ Recorte", "✂ Recorte", "✂ 裁剪"], "✂🎭 Crop + mask": ["✂🎭 Recorte + máscara", "✂🎭 Recorte + máscara", "✂🎭 裁剪并蒙版"],
  "People & masks": ["Pessoas e máscaras", "Personas y máscaras", "人物和蒙版"], "Cast": ["Elenco", "Reparto", "角色"],
  "Mask & crop settings": ["Configurações de máscara e recorte", "Ajustes de máscara y recorte", "蒙版和裁剪设置"],
-  "Color Guide identity color": ["Cor de identidade do Guia de cores", "Color de identidad de la Guía de color", "颜色引导身份颜色"],
-  "No Color Guide color": ["Sem cor", "Sin color", "无颜色引导颜色"], "Green": ["Verde", "Verde", "绿色"], "Purple": ["Roxo", "Morado", "紫色"],
+    "Green": ["Verde", "Verde", "绿色"], "Purple": ["Roxo", "Morado", "紫色"],
  "Red": ["Vermelho", "Rojo", "红色"], "Blue": ["Azul", "Azul", "蓝色"], "Yellow": ["Amarelo", "Amarillo", "黄色"], "Magenta": ["Magenta", "Magenta", "品红"], "Cyan": ["Ciano", "Cian", "青色"],
  "Checks": ["Verificações", "Comprobaciones", "检查"], "Run": ["Executar", "Ejecutar", "运行"], "Filters": ["Filtros", "Filtros", "筛选"],
  "Auto loop (one run)": ["Loop automático (uma execução)", "Bucle automático (una ejecución)", "自动循环（一次运行）"],
@@ -68,10 +98,10 @@ const TEXT = {
  "This tour is optional. Use Next to visit each main tab; close it whenever you like.": ["Este tour é opcional. Use Avançar para conhecer cada aba; feche quando quiser.", "Este recorrido es opcional. Pulsa Siguiente para visitar cada pestaña; puedes cerrarlo cuando quieras.", "此引导为可选。点击下一步浏览各个主选项卡，也可随时关闭。"],
  "Choose a video, set the frame range, split at camera cuts, then set the generation size.": ["Escolha um vídeo e o trecho, divida nos cortes de câmera e defina o tamanho da geração.", "Elige un vídeo y un rango, divídelo en cortes de cámara y define el tamaño de generación.", "选择视频和范围，按镜头切换拆分，然后设置生成尺寸。"],
  "Review each shot, assign its references and prompt, and choose how the result is applied.": ["Revise cada plano, associe referências e prompt e escolha como aplicar o resultado.", "Revisa cada plano, asigna referencias y prompt, y elige cómo aplicar el resultado.", "检查每个镜头，设置参考图和提示词，并选择结果的应用方式。"],
-  "Link detected people to references. Set masks here or per shot; ArcFace links are a guide and need your review.": ["Associe as pessoas detectadas às referências. Configure máscaras aqui ou por plano; revise os vínculos ArcFace.", "Vincula las personas detectadas con referencias. Configura máscaras aquí o por plano; revisa los enlaces ArcFace.", "将检测到的人物关联到参考图。可在此处或逐镜头设置蒙版；请检查 ArcFace 关联。"],
+  "Track detected face identities to filter or split shots. Set masks here or per shot.": ["Rastreie identidades faciais para filtrar ou dividir planos. Configure as máscaras aqui ou por plano.", "Sigue identidades faciales para filtrar o dividir planos. Configura máscaras aquí o por plano.", "跟踪人脸身份以筛选或拆分镜头。可在此处或逐镜头设置蒙版。"],
  "Set shared references, prompts and optional VLM assistance. Written prompts are kept exactly as authored.": ["Defina referências, prompts e assistência opcional do VLM. Os prompts escritos são preservados como estão.", "Configura referencias, prompts y asistencia opcional del VLM. Los prompts escritos se conservan tal cual.", "设置共享参考图、提示词和可选的 VLM 辅助。提示词会保持原样。"],
  "Check warnings, choose auto or queue loop, and set filters or quick-run limits.": ["Confira avisos, escolha loop automático ou fila e configure filtros e limites de teste.", "Revisa avisos, elige bucle automático o cola y configura filtros y límites de prueba.", "查看警告，选择自动循环或队列，并设置筛选条件和快速运行限制。"],
-  "Color Guide adds a translucent marker to a selected person. Ref 1 and Ref 2 must use different colors in the same shot.": ["O Guia de cores aplica uma cor translúcida à pessoa selecionada. Ref. 1 e Ref. 2 precisam de cores diferentes no mesmo plano.", "La Guía de color aplica una marca translúcida a la persona seleccionada. Ref. 1 y Ref. 2 deben tener colores distintos en el mismo plano.", "颜色引导会给选中的人物添加半透明颜色。同一镜头中的参考图 1 和参考图 2 必须使用不同颜色。"],
+  "Color the selected region in the source video as a translucent visual marker. It does not create or enable an inpainting mask.": ["Colorir a região selecionada no vídeo de origem como uma marca translúcida. Isso não cria nem ativa uma máscara de inpainting.", "Colorea la región seleccionada en el vídeo de origen como una marca translúcida. No crea ni activa una máscara de inpainting.", "在源视频的选定区域叠加半透明颜色标记，不会创建或启用修补蒙版。"],
  "🎬 Shot Planner": ["🎬 Planejador de planos", "🎬 Planificador de planos", "🎬 镜头规划器"],
  "— choose a video from the input folder —": ["— escolha um vídeo da pasta de entrada —", "— elige un vídeo de la carpeta de entrada —", "— 从输入文件夹选择视频 —"],
  "⬆ Upload": ["⬆ Enviar", "⬆ Subir", "⬆ 上传"], "Pick or upload a video to start": ["Escolha ou envie um vídeo para começar", "Elige o sube un vídeo para empezar", "选择或上传视频以开始"],
@@ -82,16 +112,14 @@ const TEXT = {
  "Camera cuts or fixed length, on the model's frame grid": ["Cortes de câmera ou duração fixa, na grade de frames do modelo", "Cortes de cámara o duración fija, según la cuadrícula de fotogramas del modelo", "按镜头切换或固定时长，并符合模型帧步长"],
  "re-analyses": ["reanalisar", "vuelve a analizar", "重新分析"], "ignores Max seconds / shot": ["ignora Máx. segundos por plano", "ignora Máx. segundos por plano", "忽略每个镜头的最长秒数"],
  "cropped shots use it for the crop": ["planos recortados usam esse valor no recorte", "los planos recortados usan este valor", "裁剪镜头会使用此尺寸"],
-  "Shots use their main person's reference": ["Usar a referência da pessoa principal do plano", "Usar la referencia de la persona principal del plano", "镜头使用主要人物的参考图"],
-  "Split where the main person changes": ["Dividir quando a pessoa principal mudar", "Dividir cuando cambie la persona principal", "主要人物变化时拆分"],
-  "Only run shots with a linked person": ["Executar apenas planos com pessoa vinculada", "Ejecutar solo planos con una persona vinculada", "仅运行已关联人物的镜头"],
-  "a shot without its own reference takes the reference of the person with the most screen time in it": ["um plano sem referência própria usa a referência da pessoa que aparece por mais tempo nele", "un plano sin referencia propia usa la de la persona que aparece más tiempo", "没有单独参考图的镜头会使用出镜时间最长人物的参考图"],
-  "adds a boundary when the biggest face switches to someone else (re-splits the plan)": ["cria uma divisão quando o maior rosto muda para outra pessoa (refaz a divisão)", "añade un corte cuando el rostro más grande cambia de persona (vuelve a dividir)", "最大人脸切换到其他人时添加分界（重新拆分计划）"],
-  "shots where no linked person appears are skipped": ["planos sem pessoa vinculada são ignorados", "se omiten los planos sin una persona vinculada", "跳过没有关联人物的镜头"],
+    "Split where the main person changes": ["Dividir quando a pessoa principal mudar", "Dividir cuando cambie la persona principal", "主要人物变化时拆分"],
+  "Only run shots with a detected person": ["Executar apenas planos com pessoa detectada", "Ejecutar solo planos con una persona detectada", "仅运行检测到人物的镜头"],
+    "adds a boundary when the biggest face switches to someone else (re-splits the plan)": ["cria uma divisão quando o maior rosto muda para outra pessoa (refaz a divisão)", "añade un corte cuando el rostro más grande cambia de persona (vuelve a dividir)", "最大人脸切换到其他人时添加分界（重新拆分计划）"],
+  "shots with no detected, non-ignored person are skipped": ["planos sem pessoa detectada e não ignorada são pulados", "se omiten los planos sin una persona detectada y no ignorada", "跳过没有检测到未忽略人物的镜头"],
  "Nobody found yet.": ["Nenhuma pessoa encontrada.", "Aún no se encontraron personas.", "尚未检测到人物。"], "↻ Re-analyse people": ["↻ Analisar pessoas novamente", "↻ Volver a analizar personas", "↻ 重新分析人物"], "👥 Find people": ["👥 Encontrar pessoas", "👥 Buscar personas", "👥 查找人物"],
  "faces sampled every 0.5 s and grouped by identity (InsightFace, CPU)": ["rostos amostrados a cada 0,5 s e agrupados por identidade (InsightFace, CPU)", "rostros muestreados cada 0,5 s y agrupados por identidad (InsightFace, CPU)", "每 0.5 秒采样人脸并按身份分组（InsightFace，CPU）"],
  "detects faces across the video and groups them into people": ["detecta rostos no vídeo e os agrupa por pessoa", "detecta rostros en el vídeo y los agrupa por persona", "检测视频中的人脸并按人物分组"],
-  "track faces, link each person to a reference, split and assign shots by who is on screen": ["rastreie rostos, associe cada pessoa a uma referência e divida os planos por quem aparece", "rastrea rostros, vincula cada persona a una referencia y divide los planos según quién aparece", "跟踪人脸、关联参考图，并按出镜人物拆分镜头"],
+  "track face identities to filter or split shots": ["rastreie rostos, associe cada pessoa a uma referência e divida os planos por quem aparece", "rastrea rostros, vincula cada persona a una referencia y divide los planos según quién aparece", "跟踪人脸、关联参考图，并按出镜人物拆分镜头"],
  "Each shot picks what it marks (🎯 text or points, or 🎞 its own mask video) and how it is generated (": ["Cada plano define a seleção (🎯 texto, pontos ou 🎞 vídeo de máscara) e o modo de geração (", "Cada plano define la selección (🎯 texto, puntos o 🎞 vídeo de máscara) y el modo de generación (", "每个镜头设置选区（🎯 文本、点或 🎞 蒙版视频）和生成方式（"],
  "🎞 Mask video (whole video)": ["🎞 Vídeo de máscara (vídeo inteiro)", "🎞 Vídeo de máscara (vídeo completo)", "🎞 蒙版视频（整个视频）"],
  "— none: SAM 3 per shot —": ["— nenhum: SAM 3 por plano —", "— ninguno: SAM 3 por plano —", "— 无：每个镜头使用 SAM 3 —"], "Fill holes": ["Preencher buracos", "Rellenar huecos", "填充孔洞"], "Invert": ["Inverter", "Invertir", "反转"],
@@ -100,11 +128,11 @@ const TEXT = {
  "Crop padding (%)": ["Margem do recorte (%)", "Margen del recorte (%)", "裁剪边距（%）"], "Feather (px)": ["Suavização da borda (px)", "Suavizado del borde (px)", "羽化（像素）"], "Paste back": ["Colar de volta", "Pegar de vuelta", "贴回方式"],
  "only the mask (feathered)": ["somente a máscara (suavizada)", "solo la máscara (suavizada)", "仅蒙版（羽化边缘）"], "the whole box (feathered)": ["a caixa inteira (suavizada)", "todo el cuadro (suavizado)", "整个框（羽化边缘）"], "Blockify (px, 0 = off)": ["Blocos (px, 0 = desligado)", "Bloques (px, 0 = desactivado)", "块化（像素，0 = 关闭）"],
  "Uses the official sam3.1_multiplex_fp16 checkpoint (models/checkpoints), downloaded from Comfy-Org/sam3.1 the first time.": ["Usa o checkpoint oficial sam3.1_multiplex_fp16 (models/checkpoints), baixado de Comfy-Org/sam3.1 na primeira utilização.", "Usa el checkpoint oficial sam3.1_multiplex_fp16 (models/checkpoints), descargado de Comfy-Org/sam3.1 la primera vez.", "使用官方 sam3.1_multiplex_fp16 检查点（models/checkpoints），首次运行时从 Comfy-Org/sam3.1 下载。"],
-  "SAM 3": ["SAM 3", "SAM 3", "SAM 3"], "track faces, link each person to a reference, split and assign shots by who is on screen": ["rastreie rostos, associe cada pessoa a uma referência e organize os planos por quem aparece", "rastrea rostros, vincula cada persona a una referencia y organiza los planos según quién aparece", "跟踪人脸、关联参考图，并按出镜人物分配镜头"],
+  "SAM 3": ["SAM 3", "SAM 3", "SAM 3"], "track face identities to filter or split shots": ["rastreie rostos, associe cada pessoa a uma referência e organize os planos por quem aparece", "rastrea rostros, vincula cada persona a una referencia y organiza los planos según quién aparece", "跟踪人脸、关联参考图，并按出镜人物分配镜头"],
  "Global reference & prompt": ["Referência e prompt globais", "Referencia y prompt globales", "全局参考图和提示词"], "defaults for every shot": ["padrão para todos os planos", "valor predeterminado para cada plano", "所有镜头的默认设置"],
  "who the shot becomes": ["em quem o plano será transformado", "en quién se transforma el plano", "镜头中的人物将替换为谁"], "Prompt for this shot (empty = global prompt). Placeholders: {target} {details} {shot} {setting}": ["Prompt deste plano (vazio = prompt global). Variáveis: {target} {details} {shot} {setting}", "Prompt de este plano (vacío = prompt global). Variables: {target} {details} {shot} {setting}", "此镜头的提示词（留空则使用全局提示词）。占位符：{target} {details} {shot} {setting}"],
  "recent (click = ref, shift+click = ref 2):": ["recentes (clique = ref., Shift+clique = ref. 2):", "recientes (clic = ref., Mayús+clic = ref. 2):", "最近使用（点击 = 参考图，Shift+点击 = 参考图 2）："], "✕ clear": ["✕ limpar", "✕ borrar", "✕ 清除"], "✕ clear all": ["✕ limpar tudo", "✕ borrar todo", "✕ 全部清除"], "Use global": ["Usar global", "Usar global", "使用全局设置"],
-  "empty slots use the person's reference (Cast) or the global one (Prompts & refs tab)": ["campos vazios usam a referência da pessoa (Elenco) ou a global (aba Prompts e referências)", "los campos vacíos usan la referencia de la persona (Reparto) o la global (Prompts y referencias)", "空白项使用人物参考图（角色）或全局参考图（提示词和参考图选项卡）"],
+  "empty slots use the global references (Prompts & refs tab)": ["campos vazios usam a referência da pessoa (Elenco) ou a global (aba Prompts e referências)", "los campos vacíos usan la referencia de la persona (Reparto) o la global (Prompts y referencias)", "空白项使用人物参考图（角色）或全局参考图（提示词和参考图选项卡）"],
  "Full frame": ["Quadro inteiro", "Fotograma completo", "整帧"], "The whole frame is regenerated. The mask, if any, only feeds {target} / the setting picture.": ["O quadro inteiro é gerado novamente. A máscara, se houver, só fornece {target} / a imagem de cenário.", "Se vuelve a generar todo el fotograma. La máscara, si existe, solo aporta {target} / la imagen del escenario.", "重新生成整帧。蒙版（如有）仅用于提供 {target} / 场景参考图。"],
  "Only the mask is regenerated, on the whole frame: the rest stays exactly as it was. No crop / uncrop.": ["Somente a área da máscara é regenerada; o restante permanece igual. Sem recorte.", "Solo se regenera el área de la máscara; el resto permanece igual. Sin recorte.", "仅重新生成蒙版区域，其余部分保持不变。不进行裁剪。"],
  "A box around the mask is regenerated (more pixels for a small subject); BFS Shot Join pastes it back.": ["A caixa ao redor da máscara é regenerada (mais pixels para pessoas pequenas); o BFS Shot Join cola o resultado de volta.", "Se regenera el cuadro alrededor de la máscara (más píxeles para sujetos pequeños); BFS Shot Join lo pega de vuelta.", "重新生成蒙版周围的区域（为较小主体提供更多像素）；BFS Shot Join 会将其贴回。"],
@@ -128,9 +156,9 @@ const TEXT = {
  "skipped shots do not run": ["planos ignorados não são executados", "los planos omitidos no se ejecutan", "跳过的镜头不会运行"], "only shots that run": ["somente planos executados", "solo los planos que se ejecutan", "仅统计将运行的镜头"],
  "off": ["desligado", "desactivado", "关闭"], "on": ["ligado", "activado", "开启"], "run": ["executar", "ejecutar", "运行"], "skip": ["ignorar", "omitir", "跳过"], "filters decide": ["filtros decidem", "deciden los filtros", "由筛选条件决定"], "always run": ["sempre executar", "ejecutar siempre", "始终运行"], "always skip": ["sempre ignorar", "omitir siempre", "始终跳过"], "⏸ Disable": ["⏸ Desativar", "⏸ Desactivar", "⏸ 禁用"], "▶ Enable": ["▶ Ativar", "▶ Activar", "▶ 启用"], "✂ Split": ["✂ Dividir", "✂ Dividir", "✂ 拆分"], "⇥ Merge": ["⇥ Unir", "⇥ Unir", "⇥ 合并"],
  "Advanced": ["Avançado", "Avanzado", "高级"], "English": ["Inglês", "Inglés", "英语"], "Português": ["Português", "Portugués", "葡萄牙语"], "Español": ["Espanhol", "Español", "西班牙语"], "中文": ["Chinês", "Chino", "中文"],
-  "Color Guide": ["Guia de cores", "Guía de color", "颜色引导"], "Video": ["Vídeo", "Vídeo", "视频"], "Shots": ["Planos", "Planos", "镜头"], "Prompts": ["Prompts", "Prompts", "提示词"],
-  "Guide color · Ref 1": ["Cor guia · Ref. 1", "Color guía · Ref. 1", "引导颜色 · 参考图 1"], "Guide color · Ref 2": ["Cor guia · Ref. 2", "Color guía · Ref. 2", "引导颜色 · 参考图 2"],
-  "These colors are defaults for the global references. Turn on Color Guide on a shot to apply them; shot-level colors can override them.": ["Estas cores são os padrões das referências globais. Ative o Guia de cores no plano para aplicá-las; cada plano pode substituí-las.", "Estos colores son los valores predeterminados de las referencias globales. Activa la Guía de color en un plano para aplicarlos; cada plano puede cambiarlos.", "这些颜色是全局参考图的默认值。启用镜头的颜色引导即可应用；镜头也可以单独覆盖。"],
+  "Video": ["Vídeo", "Vídeo", "视频"], "Shots": ["Planos", "Planos", "镜头"], "Prompts": ["Prompts", "Prompts", "提示词"],
+  "Marker color · Ref 1": ["Cor do marcador · Ref. 1", "Color de marca · Ref. 1", "标记颜色 · 参考图 1"], "Marker color · Ref 2": ["Cor do marcador · Ref. 2", "Color de marca · Ref. 2", "标记颜色 · 参考图 2"],
+  "These are the default marker colors for the global references. Turn on Colored Mark on a shot to apply them; shot-level colors can override them.": ["Estas são as cores padrão das referências globais. Ative Marcação colorida no plano para usá-las; cada plano pode substituí-las.", "Estos son los colores predeterminados de las referencias globales. Activa Marca de color en un plano para aplicarlos; cada plano puede cambiarlos.", "这些是全局参考图的默认标记颜色。启用镜头的彩色标记即可应用；镜头也可以单独覆盖。"],
  "Audio": ["Áudio", "Audio", "音频"], "use the video's audio": ["usar o áudio do vídeo", "usar el audio del vídeo", "使用视频音频"], "silent track": ["faixa silenciosa", "pista silenciosa", "静音音轨"],
  "auto": ["automático", "automático", "自动"], "fixed": ["fixo", "fijo", "固定"], "single": ["único", "único", "单个"], "adaptive": ["adaptativo", "adaptativo", "自适应"], "content": ["conteúdo", "contenido", "内容"], "builtin": ["integrado", "integrado", "内置"],
  "PySceneDetect adaptive": ["PySceneDetect adaptativo", "PySceneDetect adaptativo", "PySceneDetect 自适应"], "PySceneDetect content": ["PySceneDetect por conteúdo", "PySceneDetect por contenido", "PySceneDetect 内容检测"], "Built-in": ["Integrado", "Integrado", "内置"],
@@ -179,20 +207,142 @@ const TEXT = {
  "How many matches of the text prompt are tracked together.": ["Quantas correspondências do texto serão rastreadas juntas.", "Cuántas coincidencias del texto se siguen a la vez.", "同时跟踪多少个符合文本的对象。"],
  "Only the mask: the result replaces the masked pixels. The whole box: the full crop is pasted with feathered borders.": ["Somente máscara: o resultado substitui os pixels mascarados. Caixa inteira: todo o recorte é colado com bordas suaves.", "Solo máscara: el resultado sustituye los píxeles enmascarados. Cuadro completo: se pega todo el recorte con bordes suavizados.", "仅蒙版：结果替换蒙版像素。整个框：粘贴完整裁剪区域并柔化边缘。"],
  "How many frames of each shot the VLM looks at.": ["Quantos frames de cada plano o VLM analisa.", "Cuántos fotogramas de cada plano analiza el VLM.", "VLM 分析每个镜头的帧数。"], "Longest VLM answer. Raise it for long descriptions.": ["Tamanho máximo da resposta do VLM. Aumente para descrições longas.", "Longitud máxima de respuesta del VLM. Auméntala para descripciones largas.", "VLM 回复的最大长度。长描述可调高。"],
+  "skipped by hand": ["ignorado manualmente", "omitido manualmente", "手动跳过"], "no detected person": ["nenhuma pessoa detectada", "no se detectó ninguna persona", "未检测到人物"],
+  "longer than {…} frames: split it": ["mais longo que {…} frames: divida o plano", "supera {…} fotogramas: divide el plano", "超过 {…} 帧：请拆分镜头"],
+  "{…} needs a mask (text, points or a mask video; or the planner's mask input)": ["{…} precisa de uma máscara (texto, pontos, vídeo de máscara ou entrada de máscara do Planner)", "{…} necesita una máscara (texto, puntos, vídeo de máscara o entrada de máscara del planificador)", "{…} 需要蒙版（文本、点、蒙版视频或 Planner 的蒙版输入）"],
+  "the mask preview found nothing": ["a prévia da máscara não encontrou nada", "la vista previa de la máscara no encontró nada", "蒙版预览未找到目标"],
+  "the prompt uses {target} but the shot has no target description": ["o prompt usa {target}, mas o plano não tem uma descrição do alvo", "el prompt usa {target}, pero el plano no tiene una descripción del objetivo", "提示词使用了 {target}，但镜头没有目标描述"],
+  "the prompt uses {details} but its references have no description yet": ["o prompt usa {details}, mas as referências ainda não têm descrição", "el prompt usa {details}, pero las referencias aún no tienen descripción", "提示词使用了 {details}，但参考图还没有描述"],
+  "{details} sits inside a sentence of the prompt: use the 'short' describe preset (Prompts & refs), the other presets write a paragraph": ["{details} está dentro de uma frase do prompt: use a descrição 'short' (Prompts e referências); os outros modos escrevem um parágrafo", "{details} está dentro de una frase del prompt: usa la opción 'short' (Prompts y referencias); las demás opciones escriben un párrafo", "{details} 位于提示词句子中：请使用“short”描述模式（Prompts & refs），其他模式会生成段落"],
+  "no prompt (fine when the node's prompt input is connected)": ["sem prompt (tudo certo se a entrada prompt do node estiver conectada)", "sin prompt (no pasa nada si la entrada prompt del nodo está conectada)", "没有提示词（若节点的 prompt 输入已连接则无需处理）"],
+  "no reference (fine when the node's ref_image input is connected)": ["sem referência (tudo certo se a entrada ref_image do node estiver conectada)", "sin referencia (no pasa nada si la entrada ref_image del nodo está conectada)", "没有参考图（若节点的 ref_image 输入已连接则无需处理）"],
+  "Analysing video…": ["Analisando o vídeo…", "Analizando el vídeo…", "正在分析视频…"], "Detecting cuts…": ["Detectando cortes…", "Detectando cortes…", "正在检测切点…"], "Detecting people and faces…": ["Detectando pessoas e rostos…", "Detectando personas y rostros…", "正在检测人物和人脸…"],
+  "Finding people by face…": ["Localizando pessoas pelos rostos…", "Buscando personas por sus rostros…", "正在通过人脸查找人物…"], "Selecting the person (SAM 3) and describing them (VLM)…": ["Selecionando a pessoa (SAM 3) e descrevendo-a (VLM)…", "Seleccionando a la persona (SAM 3) y describiéndola (VLM)…", "正在选择人物（SAM 3）并生成描述（VLM）…"],
+  "The SAM 3 target cutout was created (shown below), but no VLM is loaded to describe it. Connect Qwen3-VL to the Shot Planner's vlm input and queue the workflow once; then click Describe target again. You can also type the target description yourself.": ["O recorte do alvo pelo SAM 3 foi criado abaixo, mas nenhum VLM está carregado para descrevê-lo. Conecte o Qwen3-VL à entrada vlm do Shot Planner e execute a fila uma vez; depois clique novamente em Descrever alvo. Você também pode escrever a descrição manualmente.", "SAM 3 creó el recorte del objetivo (se muestra abajo), pero no hay ningún VLM cargado para describirlo. Conecta Qwen3-VL a la entrada vlm de Shot Planner y ejecuta el flujo una vez; después vuelve a pulsar Describir objetivo. También puedes escribir la descripción.", "SAM 3 已生成目标抠图（见下方），但尚未加载 VLM 来描述它。将 Qwen3-VL 连接到 Shot Planner 的 vlm 输入并运行一次队列，然后再次点击“描述目标”。也可以手动填写描述。"],
+  "Segmenting with SAM 3… (the first time downloads/loads the model)": ["Segmentando com SAM 3… (na primeira vez, o modelo será baixado/carregado)", "Segmentando con SAM 3… (la primera vez se descarga/carga el modelo)", "正在使用 SAM 3 分割…（首次运行会下载并加载模型）"],
+  "open the checks (Run tab)": ["abrir as verificações (aba Executar)", "abrir las comprobaciones (pestaña Ejecutar)", "打开检查项（Run 标签页）"], "Open the full guide (every setting explained, with examples)": ["Abrir o guia completo (com explicações e exemplos de cada opção)", "Abrir la guía completa (explicaciones y ejemplos de cada opción)", "打开完整指南（包含各设置的说明和示例）"],
+  "click = keep (green) · right-click or shift+click = exclude (red) · click a point to remove it": ["clique = manter (verde) · clique direito ou Shift+clique = excluir (vermelho) · clique em um ponto para removê-lo", "clic = conservar (verde) · clic derecho o Mayús+clic = excluir (rojo) · clic en un punto para quitarlo", "单击 = 保留（绿色）· 右键或 Shift+单击 = 排除（红色）· 单击已有点可将其删除"],
+  "click to remove": ["clique para remover", "haz clic para quitar", "点击删除"], "text prompt (used when there are no points)": ["texto de seleção (usado quando não há pontos)", "texto de selección (se usa cuando no hay puntos)", "文本提示（没有标记点时使用）"],
+  "Save → all shots": ["Salvar → todos os planos", "Guardar → todos los planos", "保存 → 所有镜头"], "Save (this shot)": ["Salvar (este plano)", "Guardar (este plano)", "保存（此镜头）"],
+  "Track this selection with SAM 3 through the whole video (or the range), forward and backward from this frame; every shot without its own selection takes its part of the track. Also type a short text (e.g. 'woman in pink top') so the subject is found again after camera cuts.": ["Rastreie esta seleção com SAM 3 pelo vídeo inteiro (ou trecho), avançando e retrocedendo a partir deste frame. Cada plano sem seleção própria usa sua parte do rastreamento. Digite também uma descrição curta (por exemplo, 'mulher de blusa rosa') para reencontrar o sujeito após os cortes.", "Sigue esta selección con SAM 3 por todo el vídeo (o tramo), hacia delante y atrás desde este fotograma. Cada plano sin selección propia usa su parte del seguimiento. Añade también una descripción breve (por ejemplo, 'mujer con blusa rosa') para volver a encontrar al sujeto después de los cortes.", "使用 SAM 3 从此帧开始向前和向后跟踪所选对象，覆盖整个视频（或片段）。没有单独选区的镜头会使用对应的跟踪结果。再输入简短描述（如“穿粉色上衣的女性”），以便在切镜后重新找到主体。"],
+  "Colored Mark adds a translucent color overlay to a selected region in the source video. It does not enable inpainting. Choose the color before marking the region with points or a description.": ["Marcação colorida aplica uma sobreposição translúcida à região selecionada no vídeo de origem. Ela não ativa inpainting. Escolha a cor antes de marcar a região com pontos ou descrição.", "Marca de color aplica una superposición translúcida a la región seleccionada del vídeo original. No activa el inpainting. Elige el color antes de marcar con puntos o una descripción.", "彩色标记会在源视频的选定区域上叠加半透明颜色，不会启用修补。请先选颜色，再用点或描述标记区域。"],
+  "choose which shots run": ["escolher quais planos serão executados", "elegir qué planos se ejecutan", "选择要运行的镜头"],
+  "Fill enclosed gaps so each region is solid": ["Preencher espaços fechados para deixar cada região sólida", "Rellenar huecos cerrados para que cada región sea sólida", "填充封闭空隙，使区域完整"], "Use everything except the segmented object": ["Usar tudo, exceto o objeto segmentado", "Usar todo excepto el objeto segmentado", "使用除已分割对象以外的所有区域"], "Overlay the mask preview on the shot cards": ["Sobrepor a prévia da máscara nos cartões dos planos", "Superponer la vista previa de la máscara en las tarjetas de los planos", "在镜头卡片上叠加蒙版预览"],
+  "runs the detectors on a few frames of every shot": ["executa os detectores em alguns frames de cada plano", "ejecuta los detectores en algunos fotogramas de cada plano", "在每个镜头的若干帧上运行检测器"],
+  "Global prompt (a connected `prompt` input overrides it)": ["Prompt global (a entrada `prompt` conectada tem prioridade)", "Prompt global (la entrada `prompt` conectada tiene prioridad)", "全局提示词（若连接了 `prompt` 输入，则以输入为准）"],
+  "Used by shots without their own. Connected ref_image / ref_image_2 / prompt inputs on the node override these. Placeholders:": ["Usado nos planos sem valores próprios. As entradas ref_image / ref_image_2 / prompt conectadas ao node têm prioridade. Marcadores:", "Se usa en los planos sin valores propios. Las entradas ref_image / ref_image_2 / prompt conectadas al nodo tienen prioridad. Marcadores:", "镜头没有单独设置时使用。节点上连接的 ref_image / ref_image_2 / prompt 输入优先。占位符："],
+  "description of the shot's references ·": ["descrição das referências do plano ·", "descripción de las referencias del plano ·", "镜头参考图描述 ·"], "who is replaced (per shot) ·": ["quem será substituído (por plano) ·", "quién se sustituye (por plano) ·", "被替换对象（逐镜头）·"], "the VLM's description of the shot ·": ["descrição do plano pelo VLM ·", "descripción del plano generada por el VLM ·", "VLM 对镜头的描述 ·"], "the setting picture (H3 Conditioning).": ["imagem de cenário (H3 Conditioning)。", "imagen del entorno (H3 Conditioning).", "场景参考图（H3 Conditioning）。"],
+  "At run time the planner asks the VLM about the shots it runs and applies the options below": ["Durante a execução, o Planner consulta o VLM sobre os planos processados e aplica as opções abaixo", "Durante la ejecución, el planificador consulta al VLM sobre los planos y aplica las opciones siguientes", "运行时，Planner 会让 VLM 分析要处理的镜头并应用以下选项"],
+  "Shots without a mask text or points get the VLM's segment suggestion": ["Planos sem texto de máscara ou pontos recebem uma sugestão de segmentação do VLM", "Los planos sin texto de máscara ni puntos reciben una sugerencia de segmentación del VLM", "没有蒙版文本或标记点的镜头会使用 VLM 的分割建议"],
+  "Write {shot} in a prompt: it becomes the VLM's description of that shot (camera, framing, action)": ["Use {shot} no prompt para inserir a descrição do plano pelo VLM (câmera, enquadramento e ação)", "Escribe {shot} en el prompt para insertar la descripción del plano generada por el VLM (cámara, encuadre y acción)", "在提示词中写入 {shot}，即可插入 VLM 对镜头的描述（摄影机、构图和动作）"],
+  "Mask text for shots without one, skip where the VLM says skip": ["Texto de máscara para planos sem seleção; ignora os que o VLM indicar", "Texto de máscara para planos sin selección; omite los que el VLM marque", "为未设置选区的镜头填入蒙版文本，并跳过 VLM 建议跳过的镜头"],
+  "looks at every shot and suggests the mask, a description and whether to run it": ["analisa cada plano e sugere a máscara, uma descrição e se deve executá-lo", "analiza cada plano y sugiere la máscara, una descripción y si debe ejecutarse", "分析每个镜头并建议蒙版、描述以及是否运行"],
+  "Try another description: a new seed (and some temperature if it is 0), then describe again": ["Tentar outra descrição: usar uma nova seed (e aumentar a temperatura se estiver em 0) e descrever novamente", "Probar otra descripción: usar una nueva seed (y subir la temperatura si está en 0) y volver a describir", "重新生成描述：更换 seed（若温度为 0 则适当提高），再分析一次"],
+  "0 = always the same answer (greedy); 0.5-1 = varied answers, picked by the seed": ["0 = resposta sempre igual (greedy); 0,5–1 = respostas variadas, controladas pela seed", "0 = respuesta siempre igual (greedy); 0,5–1 = respuestas variadas según la seed", "0 = 始终生成相同答案（贪心）；0.5–1 = 由 seed 控制的多样答案"],
+  "Used when the temperature is above 0: another seed, another description": ["Usada quando a temperatura é maior que 0: outra seed gera outra descrição", "Se usa cuando la temperatura es mayor que 0: otra seed genera otra descripción", "温度大于 0 时使用：更换 seed 可生成不同描述"],
+  "The VLM gets the global prompt's sentence that holds {details} (and the shot prompt's {target} sentence for 🧑 Describe target) with a blank in its place, and writes the description to fit it: the description adapts to the prompt, not the other way round.": ["O VLM recebe a frase do prompt global que contém {details} (ou a frase com {target} ao usar 🧑 Descrever alvo), com o marcador em branco, e escreve uma descrição que se encaixa nela.", "El VLM recibe la frase del prompt global que contiene {details} (o la frase con {target} al usar 🧑 Describir objetivo), con el marcador en blanco, y escribe una descripción que encaje.", "VLM 会读取包含 {details} 的全局提示词句子（使用 🧑 描述目标时则读取含 {target} 的镜头提示词），并在占位处生成适配的描述。"],
+  "Add a reference (global, per shot or per shot) first.": ["Adicione uma referência global ou por plano primeiro.", "Añade primero una referencia global o por plano.", "请先添加全局参考图或镜头参考图。"],
+  "✓ Nothing to fix in the shots that run.": ["✓ Nenhum ajuste necessário nos planos que serão executados.", "✓ No hay nada que corregir en los planos que se ejecutarán.", "✓ 将运行的镜头无需修正。"],
+  "Keep original video": ["Manter o vídeo original", "Conservar el vídeo original", "保留原视频"],
+  "Each run generates one shot and stores it. Nodes after BFS Shot Join only run on the last shot, with the full video.": ["Cada execução gera e salva um plano. Os nodes após BFS Shot Join só executam no último, com o vídeo completo.", "Cada ejecución genera y guarda un plano. Los nodos posteriores a BFS Shot Join solo se ejecutan en el último, con el vídeo completo.", "每次运行生成并保存一个镜头。BFS Shot Join 后的节点仅在最后一个镜头运行，并接收完整视频。"],
+  "go to this shot": ["ir para este plano", "ir a este plano", "跳转到此镜头"], "Pick a video in the Video tab.": ["Escolha um vídeo na aba Vídeo.", "Elige un vídeo en la pestaña Vídeo.", "请在 Video 标签页中选择视频。"],
+  "split this shot in two": ["dividir este plano em dois", "dividir este plano en dos", "将此镜头一分为二"], "merge with the next shot": ["unir ao próximo plano", "unir con el siguiente plano", "与下一个镜头合并"],
+  "Forget the recent pictures (the ones this plan still uses stay)": ["Esquecer as imagens recentes (as usadas neste plano serão mantidas)", "Olvidar las imágenes recientes (se conservan las que usa este plan)", "清除最近使用的图片（本计划仍在使用的图片会保留）"],
+  "Remove EVERY reference from this plan (global and all shots) and the recent list": ["Remover TODAS as referências deste plano (global e de todos os planos) e da lista recente", "Eliminar TODAS las referencias de este plan (globales y de todos los planos) y de la lista reciente", "从此计划（全局和所有镜头）及最近列表中移除所有参考图"],
+  "clear this shot's references and prompt: it uses the global ones": ["limpar as referências e o prompt deste plano para usar os globais", "borrar las referencias y el prompt de este plano para usar los globales", "清除此镜头的参考图和提示词，改用全局设置"],
+  "+ Mark a second region (optional)": ["+ Marcar uma segunda região (opcional)", "+ Marcar una segunda región (opcional)", "+ 标记第二个区域（可选）"], "Mark a second region · Ref 2": ["Marcar segunda região · Ref. 2", "Marcar segunda región · Ref. 2", "标记第二个区域 · 参考图 2"], "Describe second region": ["Descrever segunda região", "Describir la segunda región", "描述第二个区域"], "e.g. the person on the left": ["ex.: a pessoa à esquerda", "p. ej., la persona de la izquierda", "例如：左侧的人物"],
+  "mask: what to segment, in English (woman in pink top, black dog…) · Enter = preview": ["máscara: o que segmentar, em inglês (woman in pink top, black dog…) · Enter = prévia", "máscara: qué segmentar, en inglés (woman in pink top, black dog…) · Enter = vista previa", "蒙版：用英文描述分割对象（woman in pink top、black dog…）· Enter = 预览"],
+  "Pick positive / negative points on a frame of this shot (more precise than text when several people look alike)": ["Marque pontos positivos/negativos em um frame do plano (mais preciso que texto quando várias pessoas são parecidas)", "Marca puntos positivos/negativos en un fotograma del plano (más preciso que el texto si varias personas se parecen)", "在此镜头的一帧上标记正向/负向点（多人相似时比文本更准确）"],
+  "Segment this shot (the points win over the text)": ["Segmentar este plano (os pontos têm prioridade sobre o texto)", "Segmentar este plano (los puntos tienen prioridad sobre el texto)", "分割此镜头（标记点优先于文本）"], "Segment this shot with the text and show a few frames": ["Segmentar este plano pelo texto e mostrar alguns frames", "Segmentar este plano con el texto y mostrar algunos fotogramas", "根据文本分割此镜头并预览若干帧"],
+  "Colored Mark needs a region selection: enter a description, add points, or choose a mask video, then preview it.": ["A Marcação colorida precisa de uma região: digite uma descrição, adicione pontos ou escolha um vídeo de máscara e gere a prévia.", "La Marca de color necesita una región: escribe una descripción, añade puntos o elige un vídeo de máscara y genera la vista previa.", "彩色标记需要选定区域：输入描述、添加标记点或选择蒙版视频，然后预览。"],
+  "nothing found: the shot runs without a mask": ["nada encontrado: o plano será executado sem máscara", "no se encontró nada: el plano se ejecutará sin máscara", "未找到目标：此镜头将不使用蒙版运行"],
+  "The whole frame is regenerated. The mask, if any, only feeds {target} / the setting picture.": ["O frame inteiro é regenerado. Se houver máscara, ela só alimenta {target} ou a imagem de cenário.", "Se regenera todo el fotograma. Si hay máscara, solo se usa para {target} o la imagen del entorno.", "整帧都会重新生成。若有蒙版，仅用于 {target} 或场景参考图。"],
+  "What the NEW subject is, in English, for SAM 3 on the result: BFS Shot Join also pastes its outline (when it is bigger than the old one). E.g. person, dog, cat, car. Empty = person.": ["Descreva em inglês o NOVO sujeito no resultado para o SAM 3: o BFS Shot Join também cola seu contorno quando ele é maior que o antigo. Ex.: person, dog, cat, car. Vazio = person.", "Describe en inglés el NUEVO sujeto del resultado para SAM 3: BFS Shot Join también pega su silueta cuando supera la anterior. Ej.: person, dog, cat, car. Vacío = person.", "用英文描述结果中的新主体，供 SAM 3 使用：若新轮廓更大，BFS Shot Join 也会粘贴其轮廓。例如 person、dog、cat、car。留空 = person。"],
+  "Write {target} in the prompt: it becomes this description, so the model knows WHICH person to replace (useful with several people on screen).": ["Use {target} no prompt para inserir esta descrição e indicar ao modelo QUEM substituir (útil quando há várias pessoas na tela).", "Escribe {target} en el prompt para insertar esta descripción e indicar a quién debe sustituir el modelo (útil si hay varias personas).", "在提示词中使用 {target} 插入此描述，明确告诉模型要替换谁（画面中有多人时很有用）。"],
+  "Uses this shot's selection (🎯 Points… on the person — click the BODY, not only the face, so the outfit is described — or the mask text): SAM 3 cuts the person out and the VLM describes them": ["Usa a seleção deste plano (🎯 Pontos… no corpo, não apenas no rosto, para descrever a roupa; ou o texto da máscara): o SAM 3 recorta a pessoa e o VLM a descreve.", "Usa la selección de este plano (🎯 Puntos… en el cuerpo, no solo en la cara, para describir la ropa; o el texto de máscara): SAM 3 recorta a la persona y el VLM la describe.", "使用此镜头的选区（🎯 在人物身体上标点，不要只点脸，这样才能描述服装；或使用蒙版文本）：SAM 3 抠出人物，VLM 生成描述。"],
+  "Skip this shot": ["Ignorar este plano", "Omitir este plano", "跳过此镜头"], "unparsed answer:": ["resposta não interpretada:", "respuesta sin procesar:", "未解析的回答："],
+  "previous shot as reference": ["plano anterior como referência", "plano anterior como referencia", "将上一镜头作为参考图"], "previous shot as first frame": ["plano anterior como primeiro frame", "plano anterior como primer fotograma", "将上一镜头作为首帧"], "previous shot's end as history (long take)": ["final do plano anterior como histórico (plano contínuo)", "final del plano anterior como historial (toma continua)", "将上一镜头的结尾作为历史（连续长镜头）"],
+  "its first frame": ["seu primeiro frame", "su primer fotograma", "其首帧"], "its last frame": ["seu último frame", "su último fotograma", "其末帧"], "its middle frame": ["seu frame do meio", "su fotograma central", "其中间帧"],
+  "Pick a video in the Video tab.": ["Escolha um vídeo na aba Vídeo.", "Elige un vídeo en la pestaña Vídeo.", "请在 Video 标签页中选择视频。"],
+  "✓ copied to {…} shot(s)": ["✓ copiado para {…} plano(s)", "✓ copiado a {…} plano(s)", "✓ 已复制到 {…} 个镜头"], "show mask previews": ["mostrar prévias das máscaras", "mostrar vistas previas de las máscaras", "显示蒙版预览"],
+  "max total seconds": ["duração total máxima", "duración total máxima", "总时长上限"],
+  "Remove every reference picture from this plan (global, every shot) and forget the recent list?": ["Remover todas as imagens de referência deste plano (global e de todos os planos) e limpar a lista recente?", "¿Eliminar todas las imágenes de referencia de este plan (globales y de todos los planos) y borrar la lista reciente?", "移除此计划中的所有参考图（全局及各镜头）并清空最近列表？"],
+  "Colored Mark": ["Marcação colorida", "Marca de color", "彩色标记"], "Default Colored Mark for this global reference": ["Cor padrão da Marcação colorida para esta referência global", "Color predeterminado de Marca de color para esta referencia global", "此全局参考图的默认彩色标记颜色"],
+  "write {details} in any prompt: each shot gets the description of its own references": ["Use {details} em qualquer prompt para inserir a descrição das referências de cada plano", "Escribe {details} en cualquier prompt para insertar la descripción de las referencias de cada plano", "在提示词中使用 {details}，即可插入各镜头对应参考图的描述"],
+  "e.g. the person on the left": ["ex.: a pessoa à esquerda", "p. ej., la persona de la izquierda", "例如：左侧的人物"], "Keeps movement and expression visible.": ["Mantém os movimentos e as expressões visíveis.", "Mantiene visibles el movimiento y la expresión.", "保留动作和表情的可见度。"],
+  "What to segment, in English: a short phrase (noun + one or two traits), e.g. 'woman in pink top'; commas for several things. Enough on its own - no points needed: SAM 3 finds and tracks it through the shot (every match, up to Max objects). Press Enter to preview. Points, when set, take priority.": ["O que segmentar, em inglês: uma frase curta (substantivo e uma ou duas características), por exemplo, 'woman in pink top'; use vírgulas para vários objetos. Não precisa de pontos: o SAM 3 encontra e rastreia o objeto no plano (até Máx. objetos). Pressione Enter para pré-visualizar. Os pontos têm prioridade.", "Qué segmentar, en inglés: una frase breve (sustantivo y uno o dos rasgos), p. ej., 'woman in pink top'; usa comas para varios objetos. No hacen falta puntos: SAM 3 lo encuentra y sigue durante el plano (hasta Máx. objetos). Pulsa Enter para previsualizar. Los puntos tienen prioridad.", "用英文描述要分割的对象：简短短语（名词加一两个特征），例如“woman in pink top”；多个对象用逗号分隔。无需标记点，SAM 3 会在镜头中查找并跟踪（最多为最大对象数）。按 Enter 预览。设置了标记点时以标记点为准。"],
+  "Remove this shot's mask (points, text, mask video) and mode - for shots where it picked the wrong thing": ["Remover a máscara (pontos, texto ou vídeo) e o modo deste plano — útil quando a seleção está errada", "Quitar la máscara (puntos, texto o vídeo) y el modo de este plano; útil si seleccionó el objeto equivocado", "移除此镜头的蒙版（点、文本或蒙版视频）及模式；适用于选错对象时"],
+  "A black/white video (white = the subject), e.g. rotoscoped in another tool. It replaces SAM 3 for this shot and covers only this shot: its first frame is the shot's first frame.": ["Vídeo em preto e branco (branco = sujeito), por exemplo, rotoscopiado em outra ferramenta. Substitui o SAM 3 apenas neste plano; o primeiro frame do vídeo corresponde ao primeiro frame do plano.", "Vídeo en blanco y negro (blanco = sujeto), por ejemplo, rotoscopiado en otra herramienta. Sustituye SAM 3 solo en este plano; su primer fotograma corresponde al primer fotograma del plano.", "黑白蒙版视频（白色表示主体），例如在其他工具中制作的 rotoscoping。它仅在此镜头替代 SAM 3，视频首帧对应镜头首帧。"],
+  "— none: SAM 3 (text / points) —": ["— nenhum: SAM 3 (texto / pontos) —", "— ninguno: SAM 3 (texto / puntos) —", "— 无：SAM 3（文本/标记点）—"], "— none: the global mask video (People / Filters / Masks) —": ["— nenhum: vídeo de máscara global (Pessoas / Filtros / Máscaras) —", "— ninguno: vídeo de máscara global (Personas / Filtros / Máscaras) —", "— 无：全局蒙版视频（人物/筛选/蒙版）—"],
+  "upload a mask video for this shot": ["enviar um vídeo de máscara para este plano", "subir un vídeo de máscara para este plano", "为此镜头上传蒙版视频"], "back to SAM 3 / the global mask": ["voltar ao SAM 3 / máscara global", "volver a SAM 3 / máscara global", "切换回 SAM 3/全局蒙版"],
+  "This shot uses its mask video: the text and points are ignored.": ["Este plano usa o vídeo de máscara; o texto e os pontos são ignorados.", "Este plano usa su vídeo de máscara; se ignoran el texto y los puntos.", "此镜头使用自己的蒙版视频，文本和标记点将被忽略。"],
+  "No mask of its own: this shot uses the global mask video (People / Filters / Masks tab).": ["Sem máscara própria: este plano usa o vídeo de máscara global (aba Pessoas / Filtros / Máscaras).", "Sin máscara propia: este plano usa el vídeo de máscara global (pestaña Personas / Filtros / Máscaras).", "没有单独蒙版：此镜头使用全局蒙版视频（People / Filters / Masks 标签页）。"],
+  "No mask of its own: this shot uses its part of the whole-video track (People / Filters / Masks tab).": ["Sem máscara própria: este plano usa sua parte do rastreamento do vídeo inteiro (aba Pessoas / Filtros / Máscaras).", "Sin máscara propia: este plano usa su parte del seguimiento de todo el vídeo (pestaña Personas / Filtros / Máscaras).", "没有单独蒙版：此镜头使用整段视频跟踪中对应的部分（People / Filters / Masks 标签页）。"],
+  "Opacity of the generation mask: the value of the white inside the mask (1 = fully white, the default). H3 reads a grey mask value as 'regenerate this much': at 0.85 the masked area starts at 85% of the noise and keeps ~15% of the original there. 0.8-0.9 keeps pose, outline and lighting while still swapping; too low copies the original person.": ["Opacidade da máscara de geração: valor do branco dentro da máscara (1 = branco total, padrão). O H3 interpreta o cinza como intensidade de regeneração: em 0,85, a região começa com 85% de ruído e preserva cerca de 15% do original. Valores de 0,8–0,9 mantêm pose, contorno e iluminação; valores muito baixos copiam a pessoa original.", "Opacidad de la máscara de generación: valor del blanco dentro de la máscara (1 = blanco total, predeterminado). H3 interpreta el gris como intensidad de regeneración: con 0,85, la zona empieza con un 85 % de ruido y conserva cerca del 15 % del original. Valores de 0,8–0,9 mantienen pose, silueta e iluminación; valores demasiado bajos copian a la persona original.", "生成蒙版的不透明度：蒙版白色区域的数值（1 = 全白，为默认值）。H3 将灰度解释为重绘强度：0.85 表示区域从 85% 噪声开始，约保留 15% 原图。0.8–0.9 可保留姿势、轮廓和光线；过低会复制原人物。"],
+  "keeps ~{…}% of the original inside the mask": ["preserva ~{…}% do original dentro da máscara", "conserva ~{…}% del original dentro de la máscara", "保留蒙版内约 {…}% 的原图"], "regenerates the masked area completely": ["regenera totalmente a região mascarada", "regenera por completo la zona enmascarada", "完全重绘蒙版区域"],
+  "set BFS Shot H3 Conditioning → inpaint to ": ["configure BFS Shot H3 Conditioning → inpaint como ", "configura BFS Shot H3 Conditioning → inpaint como ", "将 BFS Shot H3 Conditioning → inpaint 设置为 "],
+  "its outline on the result is pasted too, so a bigger silhouette is not cut": ["o contorno também é colado no resultado para não cortar uma silhueta maior", "también se pega su silueta en el resultado para no recortar una figura más grande", "结果中也会贴回其轮廓，避免裁掉更大的主体"],
+  "who is replaced, e.g. the young woman in a pink crop top (empty = the person)": ["quem será substituído, por exemplo, a jovem de top rosa (vazio = a pessoa)", "quién se sustituye, p. ej., la joven con top rosa (vacío = la persona)", "要替换谁，例如穿粉色短上衣的年轻女性（留空 = 人物）"],
+  "copy (the {shot} placeholder in the prompt gets it automatically at run time)": ["copiar (o marcador {shot} do prompt recebe isso durante a execução)", "copiar (el marcador {shot} del prompt lo inserta automáticamente al ejecutar)", "复制（运行时会自动填入提示词中的 {shot}）"],
+  "SAM 3 mask (text or points), crop, {target}": ["Máscara SAM 3 (texto ou pontos), recorte, {target}", "Máscara SAM 3 (texto o puntos), recorte, {target}", "SAM 3 蒙版（文本或点）、裁剪、{target}"],
+  "How much of the previous result's end goes before this shot. 5 frames is a short context; longer windows carry more motion and use more memory.": ["Quantos frames finais do resultado anterior são colocados antes deste plano. 5 frames dão pouco contexto; janelas maiores carregam mais movimento e usam mais memória.", "Cuántos fotogramas finales del resultado anterior se colocan antes de este plano. 5 fotogramas dan poco contexto; ventanas más largas conservan más movimiento y usan más memoria.", "将上一结果的多少末尾帧放在此镜头之前。5 帧是较短上下文；更长窗口保留更多动作，也占用更多内存。"],
+  "Which frame of the previous shot's result": ["Qual frame do resultado do plano anterior", "Qué fotograma del resultado del plano anterior", "上一镜头结果中的哪一帧"],
+  "the first shot uses only its references": ["o primeiro plano usa apenas suas referências", "el primer plano solo usa sus referencias", "第一个镜头仅使用自己的参考图"],
+  "⚠ a camera cut starts this shot: history is skipped (it only carries a continuing take)": ["⚠ este plano começa após um corte de câmera: o histórico é ignorado (ele só funciona em uma tomada contínua)", "⚠ este plano empieza tras un corte de cámara: se omite el historial (solo sirve para una toma continua)", "⚠ 此镜头从镜头切换开始：跳过历史帧（历史帧只适用于连续长镜头）"],
+  "the end of the PREVIOUS shot's result continues into this one (queue loop: shots run in order). Works with every mask mode, crop and the duet canvas.": ["o final do resultado do plano ANTERIOR continua neste plano (loop em fila: planos executados em ordem). Funciona com todos os modos de máscara, recorte e tela duet.", "el final del resultado del plano ANTERIOR continúa en este (bucle en cola: los planos se ejecutan en orden). Funciona con todos los modos de máscara, recorte y lienzo duet.", "上一镜头结果的末尾延续到此镜头（队列循环按顺序运行）。支持所有蒙版模式、裁剪和 duet 画布。"],
+  "uses a frame of the PREVIOUS shot's result (queue loop, or auto loop with BFS Shot H3 Duet)": ["usa um frame do resultado do plano ANTERIOR (loop em fila ou loop automático com BFS Shot H3 Duet)", "usa un fotograma del resultado del plano ANTERIOR (bucle en cola o automático con BFS Shot H3 Duet)", "使用上一镜头结果中的一帧（队列循环，或搭配 BFS Shot H3 Duet 的自动循环）"],
+  "the points, on each shot's frame at the same relative position (a subject that stays in place)": ["os pontos em cada plano, na mesma posição relativa do frame (para um sujeito que permanece no lugar)", "los puntos en cada plano, en la misma posición relativa del fotograma (para un sujeto que no se desplaza)", "在每个镜头相同相对位置的帧上放置这些点（适用于位置不变的主体）"],
+  "the shot's mask video (it covers only its own shot: usually you want a different one per shot)": ["o vídeo de máscara do plano (cobre apenas este plano; normalmente cada plano precisa de um vídeo diferente)", "el vídeo de máscara del plano (solo cubre este plano; normalmente se usa uno distinto por plano)", "此镜头的蒙版视频（仅覆盖此镜头；通常每个镜头需要不同的视频）"],
+  "the generation mode (Full frame / Frame + paste / Mask only / Crop / Crop + mask) and its mask strength (shots with a mask)": ["o modo de geração (Quadro inteiro / Quadro + colar / Somente máscara / Recorte / Recorte + máscara) e a força da máscara", "el modo de generación (Fotograma completo / Fotograma + pegar / Solo máscara / Recorte / Recorte + máscara) y la intensidad de máscara", "生成模式（整帧/整帧+贴回/仅蒙版/裁剪/裁剪+蒙版）及蒙版强度"],
+  "the {target} description": ["a descrição de {target}", "la descripción de {target}", "{target} 的描述"], "continuity (not on the first shot)": ["continuidade (exceto no primeiro plano)", "continuidad (excepto en el primer plano)", "连续性（第一个镜头除外）"],
+  "shots after this": ["planos depois deste", "planos posteriores a este", "此镜头之后的镜头"], "replaces the old “→ all” buttons": ["substitui os antigos botões “→ todos”", "sustituye los antiguos botones “→ todos”", "替代旧的“→ 全部”按钮"],
+  "remove (use the global reference)": ["remover (usar a referência global)", "quitar (usar la referencia global)", "移除（使用全局参考图）"], "previous shot (←)": ["plano anterior (←)", "plano anterior (←)", "上一镜头（←）"],
+  "Override the content filters for this shot": ["Substituir os filtros de conteúdo neste plano", "Anular los filtros de contenido para este plano", "覆盖此镜头的内容筛选设置"],
+  "Colored Mark keeps two independent point sets; switch regions to edit each person. Both use the frame selected below.": ["Com Marcação colorida, cada pessoa tem seu próprio conjunto de pontos. Alterne as regiões para editar cada pessoa; ambas usam o frame selecionado abaixo.", "Marca de color mantiene un conjunto de puntos independiente por persona. Cambia de región para editar cada una; ambas usan el fotograma seleccionado abajo.", "彩色标记为每个人保留独立的点集。切换区域即可编辑；两组都使用下方选定的帧。"],
+  "Describe second region": ["Descreva a segunda região", "Describe la segunda región", "描述第二个区域"],
+  "🎯 Mark with points": ["🎯 Marcar com pontos", "🎯 Marcar con puntos", "🎯 用标记点选择"],
+  "🎯 Points 2": ["🎯 Pontos 2", "🎯 Puntos 2", "🎯 标记点 2"],
+  "Region 1 · color": ["Região 1 · cor", "Región 1 · color", "区域 1 · 颜色"],
+  "Region 2 · color": ["Região 2 · cor", "Región 2 · color", "区域 2 · 颜色"],
+  "click = keep (green) · right-click or shift+click = exclude (red) · click a point to remove it": ["clique = incluir (verde) · clique direito ou shift+clique = excluir (vermelho) · clique em um ponto para removê-lo", "clic = incluir (verde) · clic derecho o shift+clic = excluir (rojo) · clic en un punto para quitarlo", "单击 = 保留（绿色）· 右键或 shift+单击 = 排除（红色）· 单击标记点可删除"],
 };
 export function t(value) {
  const s = String(value ?? ""), lang = uiLanguage.value;
  if (lang === "en") return s;
-  const entry = TEXT[s];
-  if (entry) return entry[{ pt: 0, es: 1, zh: 2 }[lang]];
+  const trimmed = s.trim(), entry = TEXT[s] || TEXT[trimmed];
+  if (entry) return `${s.slice(0, s.indexOf(trimmed))}${entry[{ pt: 0, es: 1, zh: 2 }[lang]]}${s.slice(s.indexOf(trimmed) + trimmed.length)}`;
  let m;
  if ((m = s.match(/^Person (\d+)$/))) return `${t("Person")} ${m[1]}`;
+  if ((m = s.match(/^Region (\d+) · color$/))) return `${lang === "pt" ? "Região" : lang === "es" ? "Región" : "区域"} ${m[1]} · ${lang === "zh" ? "颜色" : lang === "pt" ? "cor" : "color"}`;
+  if ((m = s.match(/^Region (\d+) \((\d+)\)$/))) return `${lang === "pt" ? "Região" : lang === "es" ? "Región" : "区域"} ${m[1]} (${m[2]})`;
+  if ((m = s.match(/^🎯 Points 2 \((\d+)\)$/))) return `🎯 ${lang === "pt" ? "Pontos" : lang === "es" ? "Puntos" : "标记点"} 2 (${m[1]})`;
  if ((m = s.match(/^Shot #(\d+)( · points)?$/))) return `${t("Shot")} #${m[1]}${m[2] ? ` · ${lang === "pt" ? "pontos" : lang === "es" ? "puntos" : "点"}` : ""}`;
  if ((m = s.match(/^(\d+) people · (\d+) linked$/))) return lang === "pt" ? `${m[1]} pessoas · ${m[2]} vinculadas` : lang === "es" ? `${m[1]} personas · ${m[2]} vinculadas` : `${m[1]} 人物 · 已关联 ${m[2]} 人`;
  if ((m = s.match(/^(\d+) shot\(s\) will run$/))) return lang === "pt" ? `${m[1]} plano(s) serão executados` : lang === "es" ? `se ejecutarán ${m[1]} plano(s)` : `将运行 ${m[1]} 个镜头`;
  if ((m = s.match(/^(\d+) suggestions$/))) return lang === "pt" ? `${m[1]} sugestões` : lang === "es" ? `${m[1]} sugerencias` : `${m[1]} 条建议`;
  if ((m = s.match(/^(\d+) shot\(s\)$/))) return lang === "pt" ? `${m[1]} plano(s)` : lang === "es" ? `${m[1]} plano(s)` : `${m[1]} 个镜头`;
  if ((m = s.match(/^(\d+) warning\(s\) · (\d+) note\(s\)$/))) return lang === "pt" ? `${m[1]} aviso(s) · ${m[2]} observação(ões)` : lang === "es" ? `${m[1]} aviso(s) · ${m[2]} nota(s)` : `${m[1]} 条警告 · ${m[2]} 条备注`;
+  if ((m = s.match(/^generate at (\d+)×(\d+)$/))) return lang === "pt" ? `gerar em ${m[1]}×${m[2]}` : lang === "es" ? `generar a ${m[1]}×${m[2]}` : `生成尺寸 ${m[1]}×${m[2]}`;
+  if ((m = s.match(/^timeline (\S+) fps · (\d+) frames$/))) return lang === "pt" ? `linha do tempo ${m[1]} fps · ${m[2]} frames` : lang === "es" ? `línea de tiempo ${m[1]} fps · ${m[2]} fotogramas` : `时间轴 ${m[1]} fps · ${m[2]} 帧`;
+  if ((m = s.match(/^from the start frame · (\d+) frames$/))) return lang === "pt" ? `a partir do frame inicial · ${m[1]} frames` : lang === "es" ? `desde el fotograma inicial · ${m[1]} fotogramas` : `从起始帧开始 · ${m[1]} 帧`;
+  if ((m = s.match(/^🔊 audio · (.+) · (\d+) ch$/))) return lang === "pt" ? `🔊 áudio · ${m[1]} · ${m[2]} canais` : lang === "es" ? `🔊 audio · ${m[1]} · ${m[2]} canales` : `🔊 音频 · ${m[1]} · ${m[2]} 声道`;
+  if ((m = s.match(/^🔇 (.+) → silent track$/))) return lang === "pt" ? `🔇 ${m[1]} → faixa silenciosa` : lang === "es" ? `🔇 ${m[1]} → pista silenciosa` : `🔇 ${m[1]} → 静音音轨`;
+  if ((m = s.match(/^Sensitivity ([\d.]+)$/))) return lang === "pt" ? `Sensibilidade ${m[1]}` : lang === "es" ? `Sensibilidad ${m[1]}` : `灵敏度 ${m[1]}`;
+  if ((m = s.match(/^= (\d+) frames \(([\d.]+) s\)$/))) return lang === "pt" ? `= ${m[1]} frames (${m[2]} s)` : lang === "es" ? `= ${m[1]} fotogramas (${m[2]} s)` : `= ${m[1]} 帧（${m[2]} 秒）`;
+  if ((m = s.match(/^generate (\d+) frames$/))) return lang === "pt" ? `gerar ${m[1]} frames` : lang === "es" ? `generar ${m[1]} fotogramas` : `生成 ${m[1]} 帧`;
+  if ((m = s.match(/^(\d+) too long \(> (\d+) f\)$/))) return lang === "pt" ? `${m[1]} acima do limite (> ${m[2]} frames)` : lang === "es" ? `${m[1]} demasiado largos (> ${m[2]} fotogramas)` : `${m[1]} 个镜头过长（> ${m[2]} 帧）`;
+  if ((m = s.match(/^boundary @ (\d+)$/))) return lang === "pt" ? `divisão no frame ${m[1]}` : lang === "es" ? `límite en el fotograma ${m[1]}` : `分界位于第 ${m[1]} 帧`;
+  if ((m = s.match(/^frame (\d+) · (.+)$/))) return lang === "pt" ? `frame ${m[1]} · ${m[2]}` : lang === "es" ? `fotograma ${m[1]} · ${m[2]}` : `第 ${m[1]} 帧 · ${m[2]}`;
+  if ((m = s.match(/^(\d+)\/(\d+) shots · ([\d.]+)s$/))) return lang === "pt" ? `${m[1]}/${m[2]} planos · ${m[3]} s` : lang === "es" ? `${m[1]}/${m[2]} planos · ${m[3]} s` : `${m[1]}/${m[2]} 个镜头 · ${m[3]} 秒`;
+  if ((m = s.match(/^(\d+) warning\(s\)$/))) return lang === "pt" ? `${m[1]} aviso(s)` : lang === "es" ? `${m[1]} aviso(s)` : `${m[1]} 条警告`;
+  if ((m = s.match(/^first seen (.+) \(click to seek\)$/))) return lang === "pt" ? `visto primeiro em ${m[1]} (clique para ir até lá)` : lang === "es" ? `primera aparición ${m[1]} (haz clic para ir)` : `首次出现于 ${m[1]}（点击跳转）`;
+  if ((m = s.match(/^(\d+) people · (\d+) included$/))) return lang === "pt" ? `${m[1]} pessoas · ${m[2]} incluídas` : lang === "es" ? `${m[1]} personas · ${m[2]} incluidas` : `${m[1]} 人物 · 已包含 ${m[2]} 人`;
+  if ((m = s.match(/^(\d+) point\(s\) at frame (\d+)$/))) return lang === "pt" ? `${m[1]} ponto(s) no frame ${m[2]}` : lang === "es" ? `${m[1]} punto(s) en el fotograma ${m[2]}` : `第 ${m[2]} 帧有 ${m[1]} 个标记点`;
+  if ((m = s.match(/^mask covers ([\d.]+)%(.+)$/))) return lang === "pt" ? `máscara cobre ${m[1]}%${m[2]}` : lang === "es" ? `la máscara cubre ${m[1]}%${m[2]}` : `蒙版覆盖 ${m[1]}%${m[2]}`;
+  if ((m = s.match(/^last (\d+) frames \(([\d.]+) s\)$/))) return lang === "pt" ? `últimos ${m[1]} frames (${m[2]} s)` : lang === "es" ? `últimos ${m[1]} fotogramas (${m[2]} s)` : `最后 ${m[1]} 帧（${m[2]} 秒）`;
+  if ((m = s.match(/^Mask opacity (.+)$/))) return lang === "pt" ? `Opacidade da máscara ${m[1]}` : lang === "es" ? `Opacidad de máscara ${m[1]}` : `蒙版不透明度 ${m[1]}`;
+  if ((m = s.match(/^Play or scrub the video \(or click the timeline\), then ⇤ \/ ⇥\. (\d+) frames \(([\d.]+) s\) of (\d+): only this part is split, analysed, generated and joined\.$/)))
+    return lang === "pt" ? `Reproduza ou avance o vídeo (ou clique na linha do tempo) e use ⇤ / ⇥. ${m[1]} frames (${m[2]} s) de ${m[3]}: somente este trecho será dividido, analisado, gerado e unido.` : lang === "es" ? `Reproduce o desplaza el vídeo (o haz clic en la línea de tiempo) y usa ⇤ / ⇥. ${m[1]} fotogramas (${m[2]} s) de ${m[3]}: solo se dividirá, analizará, generará y unirá este tramo.` : `播放或拖动视频（也可点击时间轴），然后按 ⇤ / ⇥。${m[1]} 帧（${m[2]} 秒），共 ${m[3]} 帧：仅拆分、分析、生成并合并此片段。`;
  return s;
 }
 function localizeProps(props) {
@@ -215,23 +365,28 @@ export function h(type, props, children) {
  if (typeof props === "string" || Array.isArray(props)) return vueH(type, localizeChildren(props));
  return vueH(type, p);
 }
+// Use for literal labels that must keep their native spelling (for example language names).
+export const rawH = (...args) => vueH(...args);

 export const GRIDS = { "H3 (17n+5)": [17, 5], "LTX / Wan (8n+1)": [8, 1], "Wan (4n+1)": [4, 1], "any": [1, 0] };
 export const DEFAULTS = {
  video: "", fps: 24, grid: "H3 (17n+5)", mode: "shots", max_s: 4.5, min_s: 1.0, sensitivity: 0.5,
-  max_parts: 0, max_total_s: 0, start_s: 0, end_s: 0, start_f: null, end_f: null, track: null, bounds: [], segs: [], global_ref: "", global_ref2: "", global_prompt: "", global_color_guide_ref1: "#00ff00", global_color_guide_ref2: "#9b30ff", mask_video: "",
-  megapixels: 0.15, multiple: 32, detector: "adaptive", run: "auto", auto_continue: true,
-  skip_fill: "original", audio_mode: "auto", ref_details: {}, mask_cfg: {}, vlm_cfg: {}, cast: {}, cast_assign: true, cast_split: false, cast_only: false,
+  max_parts: 0, max_total_s: 0, start_s: 0, end_s: 0, start_f: null, end_f: null, track: null, bounds: [], segs: [], global_refs: [], global_ref: "", global_ref2: "", global_prompt: "", global_color_guide_ref1: "#00ff00", global_color_guide_ref2: "#9b30ff", mask_video: "",
+  megapixels: 0.5, multiple: 32, generation_size_mode: "megapixels", custom_width: 1024, custom_height: 1024,
+  second_pass: { enabled: false, mode: "scale", scale: 2, width: 1280, height: 704, megapixels: 1, align: 32 },
+  detector: "adaptive", run: "recursive", between_shots: "keep", shot_cache: "output", shot_storage: "lossless", unload_before_join: true, auto_continue: true,
+  skip_fill: "original", audio_mode: "auto", ref_details: {}, picture_details: {}, auto_prompt: {}, auto_prompts: {}, mask_cfg: {}, vlm_cfg: {}, cast: {}, cast_split: false, cast_only: false,
  filters: { person: false, min_person_area: 0, max_persons: 0, face: false, skip_dark: false, dark_level: 0.06,
             skip_static: false, static_level: 0.004, min_frames: 0, samples: 6 },
 };

 // global mask settings (same defaults as the server's DEFAULT_MASK)
 export const MASK_DEFAULTS = { threshold: 0.5, max_objects: 4, invert: false, fill_holes: true, temporal_expand: 2, blockify: 0,
-                               padding: 0.15, expand: 16, feather: 12, paste: "mask" };
+                               padding: 0.15, expand: 16, feather: 12, paste: "box" };

 export const VLM_DEFAULTS = { enabled: false, frames: 3, max_tokens: 1024, auto_segment: true, auto_shot: true, instruction: "",
-                              describe_preset: "short", describe_custom: "", fit_prompt: true, temperature: 0, seed: 0 };
+                              describe_preset: "short", describe_custom: "", fit_prompt: true, temperature: 0, seed: 0,
+                              image_max_side: 1024 };

 // hover help for every setting (the 📖 Guide button opens the full documentation)
 export const TIPS = {
@@ -243,10 +398,12 @@ export const TIPS = {
  "Min seconds / shot": "Shorter shots merge into a neighbour when the merge still fits the maximum.",
  "Timeline fps": "The planner works on this frame rate (the source is resampled). Generated video and audio use it too.",
  "Max shots": "Only the first N shots (0 = all). Handy for quick tests.",
-  "Max total seconds": "Only the first N seconds of the video (0 = all).",
-  "Megapixels": "Generation size: the source aspect ratio at this pixel area (0.15 ≈ 512×288). Cropped shots use it for the crop.",
+  "Megapixels": "Generation size: the source aspect ratio at this pixel area (0.5 ≈ 960×544 for 16:9). Cropped shots use it for the crop.",
  "Size multiple": "Width and height snap to this multiple (32 for H3 and most video models).",
-  "Run": "Auto loop: every shot in one queue run. Queue loop: one shot per run, stored on disk, the join outputs the video after the last shot.",
+  "Shot cache": "Where the generated shots are stored. Keep: ComfyUI's output folder (output/bfs_shotloop): they survive a restart, so a stopped run resumes and a single shot can be redone. Temp: ComfyUI empties it at every start.",
+  "Shot storage": "How each stored shot is saved. Lossless (FFV1): exact, ~12x smaller than raw frames. Smaller / Smallest (H.264 RGB): about 20x / 40x smaller with a slight loss, which reaches the final video and the continuity head. Raw: exact, biggest, needs no ffmpeg.",
+  "Between shots": "Keep models loaded: fastest. Free memory: after each shot, unload every model and empty the GPU, so the next shot starts clean (for low VRAM or when a later shot runs out of memory); models load again for every shot, so it is slower.",
+  "Run": "One run, shot by shot: one Queue renders every shot in order, storing each on disk (continuity works, resumes after a failure). Queue loop: one shot per run, the panel re-queues (keep the tab open). Auto loop: every shot at once in memory (no continuity).",
  "Skipped shots in the output": "Shots that do not run: keep the original video there, or remove them (with their audio).",
  "Crop padding": "Context kept around the mask's box, as a % of the box. More context blends better; less gives the model more pixels on the subject.",
  "Expand": "Grow the mask by this many pixels: before pasting a cropped result back, and for the generation mask (inpaint 'only the mask'). Raise it when the new person is bigger than the old one (longer hair, wider body).",
@@ -301,3 +458,96 @@ export const section = (title, body, { sub = "", right = null, open = null, cls
  return h("details", { class: ["sec", cls], open: isOpen, onToggle: e => { OPEN[key] = e.target.open; } },
    [h("summary", { class: "sech" }, [h("span", { class: "caret" }, "▸"), ...head]), ...[body].flat()]);
 };
+
+// second pass size, the same arithmetic as bfs_shot_loop.second_pass_size (and Minimax H3 Latent Upscaler (3D)):
+// target pixels, rounded to `align`, then to whole 16 px latent cells
+export const secondPassSize = (w, h, sp) => {
+  if (!w || !h) return { w: 0, h: 0 };
+  let tw, th;
+  if (sp.mode === "dims") { tw = +sp.width; th = +sp.height; }
+  else if (sp.mode === "megapixels") { const px = +sp.megapixels * 1024 * 1024; th = Math.sqrt(px / (w / h)); tw = th * (w / h); }
+  else { tw = w * +sp.scale; th = h * +sp.scale; }
+  const al = Math.max(1, Math.round(+sp.align || 1)), r = x => Math.round(x / al) * al, c16 = x => Math.max(16, Math.round(x / 16) * 16);
+  return { w: c16(r(tw)), h: c16(r(th)) };
+};
+
+// ---- reference pictures (<Picture 1..12>)
+export const MAX_REFS = 100;
+// a reference list of the plan: `refs` (plans from 1.113 on), else the old ref / ref2 pair; empty slots at the end dropped
+export const refList = (refs, a = "", b = "") => {
+  const out = (Array.isArray(refs) ? refs : [a, b]).map(x => (typeof x === "string" ? x : "")).slice(0, MAX_REFS);
+  while (out.length && !out[out.length - 1]) out.pop();
+  return out;
+};
+// the pictures a shot uses, in <Picture n> order: its own slot, else the global one at the same position; a slot with
+// neither is left out (same rule as bfs_shot_loop.shot_ref_names)
+export const shotRefNames = (own, glob) => {
+  const out = [];
+  for (let k = 0; k < Math.max(own.length, glob.length); k++) { const x = own[k] || glob[k]; if (x) out.push(x); }
+  return out.slice(0, MAX_REFS);
+};
+// one slot per picture, then "+" (up to 12). Click: upload (the "+" takes several files at once); drop image files or a
+// recent thumbnail on a slot to replace it, anywhere else in the box to add them. `fallback`: the global pictures a
+// shot's empty slots use (shown faded). `extra(k, name)`: more controls under slot k.
+export function refBox(c, target, own, fallback = [], extra = () => null) {
+  const n = Math.max(own.length, fallback.length);
+  const drop = k => ({ onDragover: e => e.preventDefault(),
+                       onDrop: e => { e.preventDefault(); e.stopPropagation(); c.dropRefs(target, k, e); } });
+  const slots = [];
+  for (let k = 0; k < n; k++) {
+    const name = own[k] || "", via = name ? "" : fallback[k] || "";
+    slots.push(h("div", { class: "rslot" }, [
+      h("div", { class: "refslot", ...drop(k),
+        title: name ? `<Picture ${k + 1}>: ${name} (click to replace)` : via ? `<Picture ${k + 1}>: ${via} (global; click to use another picture in this shot)` : "click to upload",
+        onClick: () => c.uploadRef(target, k) },
+        name || via ? [h("img", { src: c.viewUrl(name || via), style: via ? "opacity:.45" : "" }), h("span", { class: "rnum" }, String(k + 1))]
+          : [`⬆ ${k + 1}`]),
+      h("div", { class: "rbtns" }, [name ? h("button", { title: target === "global" || k >= fallback.length ? "remove this picture"
+        : "remove (use the global picture)", onClick: () => c.setRef(target, k, "") }, "✕") : null]),
+      extra(k, name || via),
+    ]));
+  }
+  if (n < MAX_REFS) slots.push(h("div", { class: "rslot" }, [
+    h("div", { class: "refslot add", ...drop(n), title: `add pictures (up to ${MAX_REFS}): click to upload one or more, or drop image files here`,
+      onClick: () => c.uploadRef(target, n, true) }, "+"),
+    h("div", { class: "rbtns" }, []),
+  ]));
+  return h("div", { class: "refbox", ...drop(null) }, slots);
+}
+// chips under a prompt, one per picture: PictureN inserts <Picture N> at the cursor, 📝 inserts {details@Picture N}
+// (the description of that picture alone). The prompt box and its chips sit in one .pbox.
+export function promptChips(c, names, onSet) {
+  if (!names.length) return null;
+  const insert = (e, tag) => {
+    e.preventDefault();   // mousedown: the prompt keeps its focus and cursor
+    const ta = e.currentTarget.closest(".pbox")?.querySelector("textarea"); if (!ta) return;
+    const v = ta.value, a = ta.selectionStart ?? v.length, b = ta.selectionEnd ?? v.length;
+    const before = v.slice(0, a) + (a && !/\s$/.test(v.slice(0, a)) ? " " : "") + tag;
+    onSet(before + v.slice(b));
+    requestAnimationFrame(() => { ta.focus(); ta.setSelectionRange(before.length, before.length); });
+  };
+  return h("div", { class: "pchips" }, names.map((name, k) => h("span", { class: "pchip" }, [
+    h("button", { class: "sm", title: `insert <Picture ${k + 1}> (${name})`, onMousedown: e => insert(e, `<Picture ${k + 1}>`) },
+      [h("img", { src: c.viewUrl(name) }), `Picture${k + 1}`]),
+    h("button", { class: "sm", title: `insert {details@Picture ${k + 1}}: the description of this picture (📝 Describe refs, or the VLM at run time)`,
+      onMousedown: e => insert(e, `{details@Picture ${k + 1}}`) }, "📝"),
+  ])));
+}
+
+// ---- Colored Mark: one color per picture (<Picture 1> first; the first seven are the colors of the first mark sets)
+export const MARK_PALETTE = [["#00ff00", "green"], ["#9b30ff", "purple"], ["#ff2020", "red"], ["#168cff", "blue"],
+  ["#ffe600", "yellow"], ["#ff00d4", "magenta"], ["#00e5c0", "cyan"], ["#ff8000", "orange"], ["#ffffff", "white"],
+  ["#8b4513", "brown"], ["#ff9ec4", "pink"], ["#808000", "olive"]];
+export const markName = color => (MARK_PALETTE.find(([v]) => v === String(color).toLowerCase()) || [0, color])[1];
+// the mark color of <Picture k> (same rule as bfs_shot_loop.picture_color)
+export const pictureColor = (plan, k) => {
+  const c = Array.isArray(plan.picture_colors) ? plan.picture_colors[k - 1] : "";
+  return /^#[0-9a-f]{6}$/i.test(c || "") ? c.toLowerCase() : MARK_PALETTE[(k - 1) % MARK_PALETTE.length][0];
+};
+// a shot's extra Colored Mark regions (the second person on): plans before 1.113 had one (text2 / points2 = picture 2)
+export const markRegions = m => Array.isArray(m.color_guide_regions) ? m.color_guide_regions
+  : (m.color_guide_text2 || (m.color_guide_points2 || []).length)
+    ? [{ picture: 2, text: m.color_guide_text2 || "", points: m.color_guide_points2 || [], key: m.color_guide_key2 || 0 }] : [];
+
+// ---- 🤖 Auto prompt: the VLM writes each shot's H3 prompt from the request in the prompt box
+export const AUTO_DEFAULTS = { enabled: false, frames: 0, source: "guide", style: "h3" };
@@ -140,6 +140,14 @@ const CSS = `
 .bsl .refslot:hover{border-color:var(--acc)}
 .bsl .refslot.sm{width:56px;height:56px;font-size:10px}
 .bsl .refslot.via{border-style:solid;border-color:#3b5b3b}
+.bsl .refslot{position:relative}
+.bsl .refslot .rnum{position:absolute;left:3px;top:2px;font-size:10px;padding:0 4px;border-radius:4px;background:#000a;color:#fff}
+.bsl .refslot.add{font-size:22px;color:#8a8a99}
+.bsl .refbox{flex-wrap:wrap;max-width:100%;align-items:flex-start}
+.bsl .pchips{display:flex;gap:4px;flex-wrap:wrap;margin-top:4px}
+.bsl .pchip{display:inline-flex;gap:1px}
+.bsl .pchip button{display:inline-flex;align-items:center;gap:3px;padding:1px 5px;font-size:10px}
+.bsl .pchip img{width:16px;height:16px;border-radius:3px;object-fit:cover}
 .bsl .rslot{display:flex;flex-direction:column;gap:3px;align-items:center}
 .bsl .guidecolor{display:flex;flex-direction:column;align-items:center;gap:2px;max-width:112px}
 .bsl .guidecolor select{width:100%;font-size:10px;padding:2px 4px}
@@ -191,11 +199,17 @@ const CSS = `

 /* points window (teleported to <body>) */
 .bsl .mmodal{position:fixed;inset:0;background:rgba(0,0,0,.72);z-index:10000;display:flex;align-items:center;justify-content:center}
-.bsl .mbox{background:#1d1d23;border:1px solid #3a3a45;border-radius:10px;padding:12px;width:min(960px,94vw);max-height:94vh;overflow:auto}
-.bsl .mimg{position:relative;cursor:crosshair;user-select:none;line-height:0}
-.bsl .mimg img{width:100%;border-radius:6px}
+.bsl .mbox{background:#1d1d23;border:1px solid #3a3a45;border-radius:10px;padding:12px;width:min(960px,94vw);height:min(900px,94vh);overflow:auto;box-sizing:border-box}
+/* the frame fits a fixed stage whatever the video's size or orientation; points are stored relative to the frame */
+.bsl .mstage{display:flex;justify-content:center;align-items:center;height:min(540px,56vh);background:#0d0d10;border-radius:6px}
+.bsl .mimg{position:relative;cursor:crosshair;user-select:none;line-height:0;display:inline-block}
+.bsl .mimg img{display:block;max-width:100%;max-height:min(540px,56vh);border-radius:6px}
+.bsl .mthumb{width:22px;height:22px;border-radius:4px;object-fit:cover;vertical-align:middle;border:2px solid var(--mark,#555)}
 .bsl .pt{position:absolute;width:14px;height:14px;margin:-7px 0 0 -7px;border-radius:50%;border:2px solid #fff;cursor:pointer}
 .bsl .pt.pos{background:#3ccf6b}.bsl .pt.neg{background:#e8455a}
+.bsl .pt.cg.pos{background:var(--point-color,#00ff00)}
+.bsl .pt.other{opacity:.5}
+.bsl .mreg{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-top:6px}
 `;

 export function styles() {
@@ -1,6 +1,6 @@
 // The busy bar and the points window (🎯 Points…: click on a frame to pick the subject for SAM 3).
 import { Teleport } from "../vendor/vue.esm-browser.prod.mjs";
-import { h, hint, t } from "./common.js";
+import { h, hint, t, pictureColor, markName } from "./common.js";

 export function busyBar(c, msg) {
  const { busySince, now, upPct, status } = c;
@@ -15,14 +15,37 @@ export function busyBar(c, msg) {
 }

 export function pointsModal(c) {
-  const { modal, segs, plan, api } = c;
+  const { modal, segs, plan, api, setMeta } = c;
  const ms = segs.value[modal.idx];
  if (!modal.open || !ms) return null;
+  // Colored Mark: region 1 = the shot's own selection, 2.. = its extra regions; each one is a picture, in its color
+  const regionPicture = r => (r === 1 ? ms.color_guide_picture : ms.regions[r - 2]?.picture) || 1;
+  const regionColor = r => pictureColor(plan, regionPicture(r));
+  const regionsN = ms.color_guide ? 1 + ms.regions.length : 1;
+  const pointOverlays = ms.color_guide
+    ? Array.from({ length: regionsN }, (_, q) => q + 1).flatMap(region => (region === modal.region ? modal.points : modal.groups[region]?.points || []).map((p, k) => h("div", {
+      class: ["pt", "cg", region !== modal.region && "other", p.label ? "pos" : "neg"],
+      style: `left:${p.x * 100}%;top:${p.y * 100}%;--point-color:${regionColor(region)}`,
+      title: `Region ${region} · Picture ${regionPicture(region)}${region === modal.region ? " · click to remove" : ""}`,
+      onPointerdown: e => { if (region !== modal.region) return; e.stopPropagation(); modal.points = modal.points.filter((_, j) => j !== k); modal.prev = null; },
+    })))
+    : modal.points.map((p, k) => h("div", { class: ["pt", p.label ? "pos" : "neg"], style: `left:${p.x * 100}%;top:${p.y * 100}%`,
+      title: "click to remove", onPointerdown: e => { e.stopPropagation(); modal.points = modal.points.filter((_, j) => j !== k); modal.prev = null; } }));
+  const regionButton = r => {
+    const k = regionPicture(r), name = ms.names[k - 1];
+    return h("button", { class: modal.region === r ? "pri" : "", onClick: () => c.switchPointRegion(r),
+      title: `Region ${r}: becomes <Picture ${k}> (${markName(regionColor(r))})` }, [
+      name ? h("img", { class: "mthumb", src: c.viewUrl(name), style: `--mark:${regionColor(r)}` }) : null,
+      ` Picture ${k} · ${markName(regionColor(r))} (${(r === modal.region ? modal.points : modal.groups[r]?.points || []).length})`]);
+  };
  return h(Teleport, { to: "body" }, h("div", { class: "bsl", style: "background:none;padding:0" }, h("div", { class: "mmodal",
    onKeydown: e => e.stopPropagation(), onPointerdown: e => { if (e.target === e.currentTarget) modal.open = false; } }, [
    h("div", { class: "mbox" }, [
      h("div", { class: "row", style: "margin-bottom:6px" }, [h("span", { class: "sect" }, `Shot #${modal.idx + 1} · points`),
-        hint("click = keep (green) · right-click or shift+click = exclude (red) · click a point to remove it")]),
+        ms.color_guide ? h("div", { class: "row" }, [hint("One point set per marked person; switch to edit each. All use the frame selected below."),
+          ...Array.from({ length: regionsN }, (_, q) => regionButton(q + 1))]) : null,
+        hint("click = keep · right-click or shift+click = exclude · click a point to remove it")]),
+      h("div", { class: "mstage" }, [
      h("div", { class: "mimg", onContextmenu: e => e.preventDefault(), onPointerdown: e => {
        const box = e.currentTarget.getBoundingClientRect();
        const x = (e.clientX - box.left) / box.width, y = (e.clientY - box.top) / box.height;
@@ -30,9 +53,8 @@ export function pointsModal(c) {
        modal.prev = null;
      } }, [
        h("img", { draggable: false, src: api.apiURL(`/bfs/shotloop/frame?video=${encodeURIComponent(plan.video)}&fps=${plan.fps}&f=${ms.start + modal.key}&w=900`) }),
-        ...modal.points.map((p, k) => h("div", { class: ["pt", p.label ? "pos" : "neg"], style: `left:${p.x * 100}%;top:${p.y * 100}%`,
-          title: "click to remove", onPointerdown: e => { e.stopPropagation(); modal.points = modal.points.filter((_, j) => j !== k); modal.prev = null; } })),
-      ]),
+        ...pointOverlays,
+      ])]),
      h("div", { class: "row", style: "margin-top:6px" }, [
        hint(`frame ${ms.start + modal.key} (${modal.key + 1}/${ms.len})`),
        h("input", { type: "range", min: 0, max: ms.len - 1, step: 1, value: modal.key, style: "flex:1",
@@ -43,16 +65,17 @@ export function pointsModal(c) {
          onChange: e => { modal.text = e.target.value; } }),
        h("button", { onClick: () => { modal.points = []; modal.prev = null; } }, "Clear points"),
        h("button", { class: "pri", disabled: !!modal.busy || !(modal.points.length || modal.text),
-          onClick: () => c.previewMask(modal.idx, { points: modal.points, key: modal.key, text: modal.text }, true) }, "👁 Segment"),
+          onClick: () => c.previewMask(modal.idx, { points: modal.points, key: modal.key, text: modal.text,
+            preview_color: ms.color_guide ? regionColor(modal.region) : undefined }, true) }, "👁 Segment"),
      ]),
      modal.busy ? busyBar(c, modal.busy) : null,
      modal.prev ? h("div", { class: "mstrip" }, [...modal.prev.frames.map(f => h("img", { src: f.src, title: `frame ${f.f}` })),
        hint(modal.prev.empty ? "nothing found" : `covers ${(modal.prev.coverage * 100).toFixed(1)}%`)]) : null,
      h("div", { class: "row", style: "margin-top:8px;justify-content:flex-end" }, [
        h("button", { onClick: () => { modal.open = false; } }, "Cancel"),
-        h("button", { title: "Apply these points to EVERY shot, each on its frame at the same relative position (a subject that stays in place)",
-          onClick: c.savePointsAll }, "Save → all shots"),
-        h("button", { disabled: !modal.points.length,
+        !ms.color_guide ? h("button", { title: "Apply these points to EVERY shot, each on its frame at the same relative position (a subject that stays in place)",
+          onClick: c.savePointsAll }, "Save → all shots") : null,
+        h("button", { disabled: !modal.points.length || ms.color_guide,
          title: "Track this selection with SAM 3 through the whole video (or the range), forward and backward from this frame; every shot without its own selection takes its part of the track. Also type a short text (e.g. 'woman in pink top') so the subject is found again after camera cuts.",
          onClick: c.saveTrack }, "🎯 Track → whole video"),
        h("button", { class: "pri", onClick: c.savePoints }, "Save (this shot)"),
@@ -64,9 +87,9 @@ export function pointsModal(c) {
 const TOUR_STEPS = [
  ["video", "Video", "Choose a video, set the frame range, split at camera cuts, then set the generation size."],
  ["shots", "Shots", "Review each shot, assign its references and prompt, and choose how the result is applied."],
-  ["people", "People", "Link detected people to references. Set masks here or per shot; ArcFace links are a guide and need your review."],
+  ["people", "People", "Track detected face identities to filter or split shots. Set masks here or per shot."],
  ["prompts", "Prompts", "Set shared references, prompts and optional VLM assistance. Written prompts are kept exactly as authored."],
-  ["shots", "Color Guide", "Color Guide adds a translucent marker to a selected person. Ref 1 and Ref 2 must use different colors in the same shot."],
+  ["shots", "Colored Mark", "Colored Mark adds a translucent color overlay to a selected region in the source video. It does not enable inpainting. Choose the color before marking the region with points or a description."],
  ["run", "Run", "Check warnings, choose auto or queue loop, and set filters or quick-run limits."],
 ];

@@ -1,19 +1,15 @@
-// 👥 People & masks tab: the cast found by face (each person linked to a reference) and the global SAM 3 mask settings.
+// 👥 People / Filters / Masks tab: cast, shot filters, and global SAM 3 mask settings.
 import { h, fmtT, fld, check, section, pill, hint } from "./common.js";

-const CAST_COLORS = [["", "No Color Guide color"], ["#00ff00", "Green"], ["#9b30ff", "Purple"], ["#ff2020", "Red"], ["#168cff", "Blue"],
-  ["#ffe600", "Yellow"], ["#ff00d4", "Magenta"], ["#00e5c0", "Cyan"]];
-
 function castSection(c) {
-  const { plan, people, busy, usedRefs } = c;
+  const { plan, people, busy } = c;
  const fps = plan.fps;
-  const castN = people.value.filter(p => c.linked(p.id)).length;
+  const castN = people.value.filter(p => c.included(p.id)).length;
  const opt = (k, label, title) => check(plan[k], v => c.setCastOpt(k, v), label, title);
  return section("Cast", [
    h("div", { class: "row", style: "gap:14px;margin-bottom:6px" }, [
-      opt("cast_assign", "Shots use their main person's reference", "a shot without its own reference takes the reference of the person with the most screen time in it"),
      opt("cast_split", "Split where the main person changes", "adds a boundary when the biggest face switches to someone else (re-splits the plan)"),
-      opt("cast_only", "Only run shots with a linked person", "shots where no linked person appears are skipped"),
+      opt("cast_only", "Only run shots with a detected person", "shots with no detected, non-ignored person are skipped"),
    ]),
    people.value.length ? h("div", { class: "cast" }, people.value.map(p => {
      const cc = c.castOf(p.id);
@@ -21,18 +17,6 @@ function castSection(c) {
        h("img", { class: "face", src: p.thumb, title: `first seen ${fmtT(p.first, fps)} (click to seek)`, onClick: () => c.seek(p.first) }),
        h("div", { class: "t" }, [h("b", `Person ${p.id}`), ` · ${(p.share * 100).toFixed(1)}%`]),
        h("div", { class: "t" }, `${fmtT(p.first, fps)} → ${fmtT(p.last, fps)}`),
-        h("div", { class: "row", style: "margin-top:4px;align-items:center" }, [
-          h("span", { class: "hint" }, "Color Guide identity color"),
-          h("select", { value: cc.guide_color || "", style: "width:auto", onChange: e => c.setCast(p.id, "guide_color", e.target.value) },
-            CAST_COLORS.map(([v, label]) => h("option", { value: v }, label))),
-        ]),
-        h("div", { class: "refbox" }, ["ref", "ref2"].map(k => h("div", { class: "rslot" }, [
-          h("div", { class: "refslot sm", title: cc[k] ? cc[k] + " (click to replace)" : "click to upload",
-            onClick: () => c.pickFile("image/*", name => c.setCast(p.id, k, name)) }, cc[k] ? [h("img", { src: c.viewUrl(cc[k]) })] : [k === "ref" ? "⬆ ref" : "⬆ ref 2"]),
-          cc[k] ? h("div", { class: "rbtns" }, [h("button", { title: "remove", onClick: () => c.setCast(p.id, k, "") }, "✕")]) : null,
-        ]))),
-        usedRefs.value.length ? h("div", { class: "recent sm" }, usedRefs.value.map(n => h("img", { src: c.viewUrl(n), title: `${n} (click = ref, shift+click = ref 2)`,
-          onClick: e => c.setCast(p.id, e.shiftKey ? "ref2" : "ref", n) }))) : null,
        check(cc.ignore, v => c.setCast(p.id, "ignore", v), "ignore"),
      ]);
    })) : h("div", { class: "hint" }, "Nobody found yet."),
@@ -40,8 +24,8 @@ function castSection(c) {
      h("button", { class: "pri", disabled: !!busy.value, onClick: () => c.findPeople(true) }, people.value.length ? "↻ Re-analyse people" : "👥 Find people"),
      hint(people.value.length ? "faces sampled every 0.5 s and grouped by identity (InsightFace, CPU)" : "detects faces across the video and groups them into people"),
    ]),
-  ], { sub: "track faces, link each person to a reference, split and assign shots by who is on screen",
-       right: people.value.length ? pill(`${people.value.length} people · ${castN} linked`) : pill("not analysed") });
+  ], { sub: "track face identities to filter or split shots",
+       right: people.value.length ? pill(`${people.value.length} people · ${castN} included`) : pill("not analysed") });
 }

 function maskSection(c) {
@@ -92,6 +76,32 @@ function maskSection(c) {
         counts.crop + counts.cropmask ? pill(`${counts.crop + counts.cropmask} cropped`, "warn") : null]) });
 }

+function filtersSection(c) {
+  const { plan, stats, segs, busy, filtersOn } = c;
+  const F = plan.filters;
+  const chk = (k, label) => check(F[k], v => c.setFilter(k, v), label);
+  const fnum = (k, step, label, help) => fld(label, h("input", { type: "number", step, min: 0, value: F[k], onChange: e => c.setFilter(k, parseFloat(e.target.value) || 0) }), help);
+  const skippedN = segs.value.filter(s => c.skipWhy(s)).length;
+  return section("Shot filters", [
+    h("div", { class: "row", style: "gap:14px;margin-bottom:6px" }, [
+      chk("person", "Needs a person"), chk("face", "Needs a face"), chk("skip_dark", "Skip dark / fades"), chk("skip_static", "Skip static shots"),
+    ]),
+    h("div", { class: "grid" }, [
+      fnum("min_person_area", 0.01, "Min person size (0-1 of frame)", "e.g. 0.03 skips wide shots"),
+      fnum("max_persons", 1, "Max people (0 = any)", "skip crowds"),
+      fnum("min_frames", 1, "Min frames (0 = off)"),
+      fnum("samples", 1, "Frames sampled / shot"),
+      fnum("dark_level", 0.01, "Dark below (0-1)"),
+      fnum("static_level", 0.001, "Static below"),
+    ]),
+    h("div", { class: "row", style: "margin-top:8px" }, [
+      h("button", { class: "pri", disabled: !!busy.value, onClick: c.analyzeContent }, "👤 Analyse people & faces"),
+      hint(stats.value.length ? `stats for ${stats.value.length} shots · YOLO person/face from models/ultralytics` : "runs the detectors on a few frames of every shot"),
+    ]),
+  ], { open: filtersOn.value || stats.value.length > 0, sub: "choose which shots run",
+       right: filtersOn.value ? pill(`${skippedN} skipped`, "warn") : pill("off") });
+}
+
 export function peopleTab(c) {
-  return h("div", { class: "card" }, [castSection(c), maskSection(c)]);
+  return h("div", { class: "card" }, [castSection(c), filtersSection(c), maskSection(c)]);
 }
@@ -1,42 +1,37 @@
 // 📝 Prompts & refs tab: the global reference / prompt, the VLM (shot suggestions) and the reference descriptions ({details}).
-import { h, fld, check, section, pill, hint, select } from "./common.js";
+import { h, fld, check, section, pill, hint, select, refBox, promptChips, MAX_REFS, MARK_PALETTE, pictureColor } from "./common.js";

-const GUIDE_COLORS = [["#00ff00", "Green"], ["#9b30ff", "Purple"], ["#ff2020", "Red"], ["#168cff", "Blue"],
-  ["#ffe600", "Yellow"], ["#ff00d4", "Magenta"], ["#00e5c0", "Cyan"]];
+const PRESETS = ["short", "object", "full body", "head / face", "face attributes", "outfit", "scene / setting", "custom"];

 function globalSection(c) {
  const { plan } = c;
-  const slot = (name, label, field) => h("div", { class: "rslot" }, [
-    h("div", { class: "refslot", title: name ? name + " (click to replace)" : "click to upload", onClick: () => c.uploadRef("global", field) },
-      name ? [h("img", { src: c.viewUrl(name) })] : [label]),
-    h("div", { class: "rbtns" }, [name ? h("button", { title: "remove", onClick: () => c.setRef("global", field, "") }, "✕") : null]),
-    h("label", { class: "guidecolor" }, [
-      h("span", { class: "hint" }, field === "global_ref" ? "Guide color · Ref 1" : "Guide color · Ref 2"),
-      h("select", { value: field === "global_ref" ? (plan.global_color_guide_ref1 || "#00ff00") : (plan.global_color_guide_ref2 || "#9b30ff"),
-        disabled: !name,
-        title: "Default Color Guide marker when this global reference is used",
-        onChange: e => c.setPlan(field === "global_ref" ? "global_color_guide_ref1" : "global_color_guide_ref2", e.target.value) },
-        GUIDE_COLORS.map(([v, text]) => h("option", { value: v }, text))),
-    ]),
+  // Colored Mark: every picture has its mark color (a person marked in it becomes that picture)
+  const marker = k => h("label", { class: "guidecolor" }, [
+    h("span", { class: "hint" }, "Mark color"),
+    h("select", { value: pictureColor(plan, k + 1), title: `Colored Mark color of <Picture ${k + 1}>`,
+      onChange: e => c.setPictureColor(k + 1, e.target.value) },
+      MARK_PALETTE.map(([v, name]) => h("option", { value: v }, name))),
  ]);
  return section("Global reference & prompt", [
-    h("div", { class: "row", style: "align-items:flex-start;gap:10px" }, [
-      h("div", { class: "refbox" }, [slot(plan.global_ref, "⬆ global\nreference", "global_ref"), slot(plan.global_ref2, "⬆ global\nref 2", "global_ref2")]),
-      h("div", { style: "flex:1;min-width:200px" }, [
-        h("textarea", { style: "min-height:78px", placeholder: "Global prompt (a connected `prompt` input overrides it)",
-          value: plan.global_prompt, onChange: e => c.setPlan("global_prompt", e.target.value) }),
-      ]),
+    refBox(c, "global", plan.global_refs, [], marker),
+    h("div", { class: "pbox", style: "margin-top:6px" }, [
+      h("textarea", { style: "min-height:78px", placeholder: plan.auto_prompt?.enabled
+        ? "Request for every shot (🤖 Auto prompt writes the H3 prompt from it), e.g. 'replace the bottle with the red can from Picture 2'"
+        : "Global prompt (a connected `prompt` input overrides it)",
+        value: plan.global_prompt, onChange: e => c.setPlan("global_prompt", e.target.value) }),
+      promptChips(c, plan.global_refs.filter(Boolean), v => c.setPlan("global_prompt", v)),
    ]),
    h("div", { class: "hint", style: "margin-top:4px" }, [
-      "Used by shots without their own. Connected ref_image / ref_image_2 / prompt inputs on the node override these. Placeholders: ",
+      `Used by shots without their own (up to ${MAX_REFS} pictures, <Picture 1> first; click + or drop image files on the box). A connected prompt input on the node overrides the global prompt. Placeholders: `,
      h("b", "{target}"), " who is replaced (per shot) · ", h("b", "{details}"), " description of the shot's references · ",
+      h("b", "{details@Picture n}"), " description of picture n alone · ",
      h("b", "{shot}"), " the VLM's description of the shot · ", h("b", "{setting}"), " the setting picture (H3 Conditioning)."]),
-    h("div", { class: "hint", style: "margin-top:4px" }, "These colors are defaults for the global references. Turn on Color Guide on a shot to apply them; shot-level colors can override them."),
+    h("div", { class: "hint", style: "margin-top:4px" }, "Mark color: the Colored Mark color of each picture. A person marked for <Picture n> in a shot is drawn in that color, and the prompt says which picture the color becomes. Change it when it is too close to a color in the video."),
  ], { sub: "defaults for every shot" });
 }

 function vlmSection(c) {
-  const { plan, vlmSug, busy, refSets } = c;
+  const { plan, vlmSug, busy, pictures } = c;
  const VC = plan.vlm_cfg || {};
  const opt = (k, label, title) => check(VC[k], v => c.setVlmCfg(k, v), label, title);
  const sugN = Object.keys(vlmSug.value).length;
@@ -50,6 +45,9 @@ function vlmSection(c) {
      h("div", { class: "grid" }, [
        fld("Frames per shot", h("input", { type: "number", min: 1, max: 8, step: 1, value: VC.frames, onChange: e => c.setVlmCfg("frames", parseInt(e.target.value) || 3) })),
        fld("Max tokens", h("input", { type: "number", min: 64, max: 2048, step: 32, value: VC.max_tokens, onChange: e => c.setVlmCfg("max_tokens", parseInt(e.target.value) || 1024) })),
+        fld("Image max side (VLM)", select(String(VC.image_max_side || 1024),
+          [448, 672, 896, 1024, 1280, 1536, 2048].map(n => [String(n), `${n} px`]),
+          v => c.setVlmCfg("image_max_side", parseInt(v) || 1024)), "VLM image sizing"),
      ]),
      h("textarea", { style: "margin-top:6px;min-height:44px", placeholder: "Extra instruction for the VLM (optional), e.g. 'segment the woman, not the man'",
        value: VC.instruction || "", onChange: e => c.setVlmCfg("instruction", e.target.value) }),
@@ -62,37 +60,81 @@ function vlmSection(c) {
         right: h("span", { class: "row" }, [VC.enabled ? pill("on", "ok") : pill("off"), sugN ? pill(`${sugN} suggestions`) : null]) }),
    section("Describe references ({details})", [
      h("div", { class: "row", style: "gap:8px" }, [
-        select(VC.describe_preset, ["short", "full body", "head / face", "face attributes", "outfit", "custom"], v => c.setVlmCfg("describe_preset", v), { style: "width:auto" }),
-        h("button", { class: "pri", disabled: !!busy.value || !refSets.value.length, onClick: c.describeRefs }, "📝 Describe refs"),
-        h("button", { disabled: !!busy.value || !refSets.value.length,
-          title: "Try another description: a new seed (and some temperature if it is 0), then describe again",
-          onClick: () => { if (!(+VC.temperature > 0)) c.setVlmCfg("temperature", 0.7); c.setVlmCfg("seed", (+VC.seed || 0) + 1); c.describeRefs(); } }, "🎲"),
+        fld("Describe", select(VC.describe_preset, PRESETS, v => c.setVlmCfg("describe_preset", v), { style: "width:auto" }),
+          "what every picture gets, unless it has its own below"),
+        h("button", { class: "pri", disabled: !!busy.value || !pictures.value.length, onClick: () => c.describePictures() }, "📝 Describe refs"),
+        h("button", { disabled: !!busy.value || !pictures.value.length,
+          title: "Try other descriptions: a new seed (and some temperature if it is 0), then describe again",
+          onClick: () => { if (!(+VC.temperature > 0)) c.setVlmCfg("temperature", 0.7); c.setVlmCfg("seed", (+VC.seed || 0) + 1); c.describePictures(); } }, "🎲"),
        fld("Temperature", h("input", { type: "number", min: 0, max: 1.5, step: 0.1, value: VC.temperature ?? 0, style: "width:70px",
          title: "0 = always the same answer (greedy); 0.5-1 = varied answers, picked by the seed",
          onChange: e => c.setVlmCfg("temperature", Math.max(0, parseFloat(e.target.value) || 0)) })),
        fld("Seed", h("input", { type: "number", min: 0, step: 1, value: VC.seed ?? 0, style: "width:80px",
          title: "Used when the temperature is above 0: another seed, another description",
          onChange: e => c.setVlmCfg("seed", Math.max(0, parseInt(e.target.value) || 0)) })),
-        hint(`${refSets.value.length} reference set(s) · editable below`),
+        hint(`${pictures.value.length} picture(s) · editable below`),
        check(VC.fit_prompt !== false, v => c.setVlmCfg("fit_prompt", v), "fit the prompt",
-          "The VLM gets the global prompt's sentence that holds {details} (and the shot prompt's {target} sentence for 🧑 Describe target) with a blank in its place, and writes the description to fit it: the description adapts to the prompt, not the other way round."),
+          "The VLM gets the global prompt's sentence about that picture ({details}, {details2} or {details@Picture n}; and the shot prompt's {target} sentence for 🧑 Describe target) with a blank in its place, and writes the description to fit it: the description adapts to the prompt, not the other way round."),
      ]),
      VC.describe_preset === "custom" ? h("textarea", { style: "margin-top:6px;min-height:52px", value: VC.describe_custom || "",
        placeholder: "Your instruction for the VLM, e.g. 'Describe the character's costume and props piece by piece…'",
        onChange: e => c.setVlmCfg("describe_custom", e.target.value) }) : null,
-      refSets.value.length ? h("div", { class: "dlist" }, refSets.value.map(x => h("div", { class: "drow" }, [
-        h("div", { class: "dthumbs" }, [x.a ? h("img", { src: c.viewUrl(x.a) }) : null, x.b ? h("img", { src: c.viewUrl(x.b) }) : null]),
-        h("div", { style: "flex:1" }, [
-          hint(x.where.length > 4 ? `${x.where.slice(0, 4).join(", ")} +${x.where.length - 4}` : x.where.join(", ")),
-          h("textarea", { style: "min-height:44px", value: plan.ref_details?.[x.key] || "",
-            placeholder: "no description yet: Describe refs, write your own, or leave it to the VLM at run time",
-            onChange: e => c.setDetail(x.key, e.target.value) }),
-        ]),
-      ]))) : hint("Add a reference (global, per shot or per person) first."),
-    ], { sub: "write {details} in any prompt: each shot gets the description of its own references" }),
+      pictures.value.length ? h("div", { class: "dlist" }, pictures.value.map(x => {
+        const own = plan.picture_cfg?.[x.name] || {};
+        return h("div", { class: "drow" }, [
+          h("div", { class: "dthumbs" }, [h("img", { src: c.viewUrl(x.name) })]),
+          h("div", { style: "flex:1" }, [
+            h("div", { class: "row", style: "gap:6px;margin-bottom:3px" }, [
+              hint(`Picture n in ${x.where.length > 4 ? `${x.where.slice(0, 4).join(", ")} +${x.where.length - 4}` : x.where.join(", ")}`),
+              h("span", { class: "grow" }),
+              select(own.preset || "", [["", `default (${VC.describe_preset || "short"})`], ...PRESETS],
+                v => c.setPictureCfg(x.name, "preset", v), { style: "width:auto", title: "What to describe in this picture" }),
+              h("button", { class: "sm", disabled: !!busy.value, title: "Describe only this picture again",
+                onClick: () => c.describePictures([x.name]) }, "🔄"),
+            ]),
+            own.preset === "custom" ? h("textarea", { style: "min-height:36px;margin-bottom:3px", value: own.custom || "",
+              placeholder: "Instruction for this picture, e.g. 'Describe only the outfit, piece by piece'",
+              onChange: e => c.setPictureCfg(x.name, "custom", e.target.value) }) : null,
+            h("textarea", { style: "min-height:44px", value: plan.picture_details?.[x.name] || "",
+              placeholder: "no description yet: 📝 Describe refs, 🔄, write your own, or leave it to the VLM at run time",
+              onChange: e => c.setPictureDetail(x.name, e.target.value) }),
+          ]),
+        ]);
+      })) : hint("Add a reference (global or per shot) first."),
+    ], { sub: "{details} = picture 1, {details2} = picture 2, {details@Picture n} = picture n: each shot gets the descriptions of its own pictures" }),
  ];
 }

+// 🤖 Auto prompt: the VLM writes each shot's prompt in H3's full-reference format from key frames of the shot, its
+// pictures and their descriptions, the request in the prompt box and the shot's marks and mode
+function autoSection(c) {
+  const { plan, busy, segs } = c;
+  const A = plan.auto_prompt || {};
+  const S = segs.value, missing = S.filter(s => !c.writtenOf(s)?.text).length;
+  const stale = S.filter(s => c.writtenOf(s)?.text && c.writtenOf(s).for !== c.autoFor(s)).length;
+  return section("🤖 Auto prompt (H3)", [
+    h("div", { class: "row", style: "gap:12px;align-items:center" }, [
+      check(A.enabled, v => c.setAuto("enabled", v), "Write the prompts with the VLM",
+        "On: the prompt boxes (global and per shot) hold your request ('change the bottle into a red can', 'Picture 1 dances in the rain'); the VLM writes each shot's MiniMax H3 prompt from key frames of the shot, the pictures and their descriptions, the request and the shot's Colored Marks, selection and mode, in H3's official full-reference format."),
+      fld("Style", select(A.style || "h3", [["h3", "H3 official (six sections)"], ["captions", "Short edit request"]],
+        v => c.setAuto("style", v), { style: "width:auto" }), "Choose prompt format. The guide performance stays fixed; request style, setting, lighting, outfit or camera changes explicitly. Identify setting pictures in the request; bind colors only to character references."),
+      fld("Trigger", select(A.trigger ?? "motion_transfer", [["motion_transfer", "motion_transfer:"], ["body_swap", "body_swap:"], ["", "None (plain prompt)"]],
+        v => c.setAuto("trigger", v), { style: "width:auto" }), "Match the LoRA caption prefix. Choose None for a model trained without a trigger."),
+      fld("Key frames", select(String(A.frames || 0), [["0", "auto (by length)"], ...[3, 4, 5, 6, 8, 10, 12].map(n => [String(n), String(n)])],
+        v => c.setAuto("frames", parseInt(v) || 0), { style: "width:auto" }), "auto: about 1.5 per second, 3 to 8"),
+      fld("Source video in the prompt", select(A.source || "guide", [["guide", "guide video (aligned guide)"], ["video", "<Video 1> (native reference video)"]],
+        v => c.setAuto("source", v), { style: "width:auto" }), "match the conditioning node's guide_mode"),
+      h("button", { class: "pri", disabled: !!busy.value || !S.length, onClick: () => c.writePrompts() }, "🤖 Write all prompts"),
+      h("button", { disabled: !!busy.value || !missing, onClick: () => c.writePrompts(S.map((s, i) => (c.writtenOf(s)?.text ? -1 : i)).filter(i => i >= 0)) },
+        `only the missing (${missing})`),
+    ]),
+    A.enabled && A.template ? h("div", { class: "hint", style: "display:block;margin-top:4px", title: A.template },
+      `Template (the node's prompt input, last run): ${A.template.slice(0, 110)}${A.template.length > 110 ? "…" : ""} · the prompt boxes are the request applied to it`) : null,
+    hint(A.enabled ? `${S.length - missing}/${S.length} shots have a written prompt${stale ? ` · ${stale} older than their request, pictures or marks` : ""} · shots without one are written when the workflow runs (with the VLM on the planner) · edit them in each shot (Shots tab)`
+      : "Off: the prompt boxes are the prompts.", "display:block;margin-top:4px"),
+  ], { sub: "request + video + pictures -> MiniMax H3 prompt", right: A.enabled ? pill("on", "ok") : pill("off") });
+}
+
 export function promptsTab(c) {
-  return h("div", { class: "card" }, [globalSection(c), ...vlmSection(c)]);
+  return h("div", { class: "card" }, [globalSection(c), autoSection(c), ...vlmSection(c)]);
 }
@@ -1,5 +1,5 @@
-// ▶ Run tab: checks before running, how the loop runs (auto / queue), which shots run (filters) and test limits.
-import { h, fld, check, section, pill, hint, select } from "./common.js";
+// ▶ Run tab: checks before running and how the loop runs (auto / queue).
+import { h, fld, check, section, pill, hint, select, DEFAULTS, secondPassSize } from "./common.js";

 function checksSection(c) {
  const { checks, tab } = c;
@@ -22,53 +22,124 @@ function checksSection(c) {

 function loopSection(c) {
  const { plan, prog, active } = c;
-  const num = (k, step, min) => h("input", { type: "number", step, min, value: plan[k], onChange: e => c.setPlan(k, parseFloat(e.target.value) || 0) });
  return section("Run", [
    h("div", { class: "grid" }, [
-      fld("Run", select(plan.run, [["auto", "Auto loop (one run)"], ["queue", "Queue loop (one shot per run)"]], v => c.setPlan("run", v, c.progress))),
+      fld("Run", select(plan.run, [["recursive", "One run, shot by shot (recommended)"], ["queue", "Queue loop (one shot per run)"],
+        ["auto", "Auto loop (all shots at once)"]], v => c.setPlan("run", v, c.progress))),
+      plan.run !== "auto" ? fld("Between shots", select(plan.between_shots || "keep", [["keep", "Keep models loaded (fastest)"],
+        ["free", "Free memory: unload models (low VRAM)"]], v => c.setPlan("between_shots", v))) : null,
      fld("Skipped shots in the output", select(plan.skip_fill, [["original", "Keep original video"], ["drop", "Remove them"]], v => c.setPlan("skip_fill", v))),
-      fld("Max shots (0 = all)", num("max_parts", 1, 0), "quick tests"),
-      fld("Max total seconds (0 = all)", num("max_total_s", 0.5, 0), "from the start of the range"),
    ]),
-    plan.run === "queue" ? h("div", { style: "margin-top:8px" }, [
-      h("div", { class: "row", style: "margin-bottom:4px" }, [h("b", "Queue loop"), h("span", { class: "grow" }),
+    h("div", { class: "row", style: "margin-top:6px" }, [
+      check(plan.unload_before_join !== false, v => c.setPlan("unload_before_join", v), "Unload models before the join",
+        "Once every shot is rendered, unload the models so the join (and the nodes after it) get the VRAM and RAM. Turn it off if a model runs again after BFS Shot Join (e.g. an upscale pass on the joined video): it would load again."),
+    ]),
+    plan.run !== "auto" ? h("div", { style: "margin-top:8px" }, [
+      h("div", { class: "row", style: "margin-bottom:4px" }, [h("b", plan.run === "queue" ? "Queue loop" : "Shot by shot"), h("span", { class: "grow" }),
        hint(`${prog.done}/${prog.count || active.value.length} shots done`)]),
      h("div", { class: "prog" }, [h("div", { style: `width:${(100 * prog.done / Math.max(1, prog.count || active.value.length)).toFixed(1)}%` })]),
      h("div", { class: "row", style: "margin-top:6px" }, [
-        check(plan.auto_continue, v => c.setPlan("auto_continue", v), "Auto-queue the next shot"),
-        h("button", { onClick: () => c.progress(false) }, "↻ Status"), h("button", { class: "dng", onClick: () => c.progress(true) }, "⟲ Reset loop"),
+        plan.run === "queue" ? check(plan.auto_continue, v => c.setPlan("auto_continue", v), "Auto-queue the next shot") : null,
+        h("button", { onClick: () => c.progress(false) }, "↻ Refresh status"), h("button", { title: "Cancel pending redo selections. Stored shots and loop progress are preserved.", onClick: () => c.progress(true) }, "Clear redo selection"),
      ]),
-      hint("Each run generates one shot and stores it. Nodes after BFS Shot Join only run on the last shot, with the full video.", "display:block;margin-top:4px"),
+      hint(plan.run === "queue"
+        ? "Each run generates one shot and stores it. Nodes after BFS Shot Join only run on the last shot, with the full video."
+        : "One Queue renders every shot in order inside the same run: each shot is stored, then BFS Shot Join starts the next one, so continuity can read the shot before. After a failure, Queue again to resume from the stored shots.",
+        "display:block;margin-top:4px"),
    ]) : null,
  ], { sub: `${active.value.length} shot(s) will run` });
 }

-function filtersSection(c) {
-  const { plan, stats, segs, busy, filtersOn } = c;
-  const F = plan.filters;
-  const chk = (k, label) => check(F[k], v => c.setFilter(k, v), label);
-  const fnum = (k, step, label, help) => fld(label, h("input", { type: "number", step, min: 0, value: F[k], onChange: e => c.setFilter(k, parseFloat(e.target.value) || 0) }), help);
-  const skippedN = segs.value.filter(s => c.skipWhy(s)).length;
-  return section("Filters", [
-    h("div", { class: "row", style: "gap:14px;margin-bottom:6px" }, [
-      chk("person", "Needs a person"), chk("face", "Needs a face"), chk("skip_dark", "Skip dark / fades"), chk("skip_static", "Skip static shots"),
-    ]),
+function memorySection(c) {
+  const { memory, vram, size } = c;
+  const m = memory.value;
+  if (!m.level) return null;
+  const k = n => (n >= 1000 ? `${(n / 1000).toFixed(1)}k` : `${n}`);
+  const pct = vram.max_tokens ? Math.min(100, 100 * m.top.tok / (1.3 * vram.max_tokens)) : 0;
+  return section("Memory", [
    h("div", { class: "grid" }, [
-      fnum("min_person_area", 0.01, "Min person size (0-1 of frame)", "e.g. 0.03 skips wide shots"),
-      fnum("max_persons", 1, "Max people (0 = any)", "skip crowds"),
-      fnum("min_frames", 1, "Min frames (0 = off)"),
-      fnum("samples", 1, "Frames sampled / shot"),
-      fnum("dark_level", 0.01, "Dark below (0-1)"),
-      fnum("static_level", 0.001, "Static below"),
+      fld("GPU", vram.gpu ? `${vram.gpu} · ${vram.total_gb} GB` : "—"),
+      fld("Biggest shot in this plan", m.top.i >= 0 ? `#${m.top.i + 1} · ${m.top.gen} frames · ${size.w}×${size.h} · ${k(m.top.tok)} tokens` : "—"),
+      fld("Biggest that ran here", vram.max_tokens ? `${k(vram.max_tokens)} tokens · peak ${vram.max_peak_gb} GB` : "nothing recorded yet"),
    ]),
-    h("div", { class: "row", style: "margin-top:8px" }, [
-      h("button", { class: "pri", disabled: !!busy.value, onClick: c.analyzeContent }, "👤 Analyse people & faces"),
-      hint(stats.value.length ? `stats for ${stats.value.length} shots · YOLO person/face from models/ultralytics` : "runs the detectors on a few frames of every shot"),
+    vram.max_tokens ? h("div", { class: "prog", style: "margin-top:6px", title: "100% = 1.3× the biggest shot that ran on this GPU" },
+      [h("div", { style: `width:${pct.toFixed(1)}%;${m.level === "warn" ? "background:var(--warn,#d97706)" : ""}` })]) : null,
+    hint({ ok: "✓ Every shot is within what already ran on this GPU.",
+      note: "A bit bigger than anything that ran here: it will probably fit, maybe slower.",
+      warn: "⚠ Much bigger than anything that ran here: it may run out of memory. Lower Megapixels or Max seconds / shot, use head 5, or set Between shots = free memory.",
+      info: "No shot has run on this GPU yet: after the first one, every shot is compared with what already ran here." }[m.level],
+      "display:block;margin-top:4px"),
+  ], { sub: { ok: "within what ran here", note: "a bit bigger", warn: "may run out of memory", info: "no data yet" }[m.level] });
+}
+
+function cacheSection(c) {
+  const { plan, cache, active } = c;
+  if (plan.run === "auto") return null;
+  const n = active.value.length, ok = cache.ok || [];
+  const done = ok.filter(Boolean).length;
+  const lossy = plan.shot_storage === "smaller" || plan.shot_storage === "smallest";
+  return section("Stored shots", [
+    h("div", { class: "grid" }, [
+      fld("Shot cache", select(plan.shot_cache || "output", [["output", "Keep (output folder)"], ["temp", "Temp (lost when ComfyUI restarts)"]],
+        v => c.setPlan("shot_cache", v, c.progress))),
+      fld("Shot storage", select(plan.shot_storage || "lossless", [["lossless", "Lossless (FFV1, exact)"], ["smaller", "Smaller (H.264 RGB, visually lossless)"],
+        ["smallest", "Smallest (H.264 RGB, light loss)"], ["raw", "Raw frames (.pt, biggest)"]], v => c.setPlan("shot_storage", v))),
    ]),
-  ], { open: filtersOn.value || stats.value.length > 0, sub: "skipped shots do not run",
-       right: filtersOn.value ? pill(`${skippedN} skipped`, "warn") : pill("off") });
+    lossy ? hint("⚠ The final video is assembled from the stored shots (and the continuity head reads them): a lossy storage "
+      + "slightly changes the output. Lossless keeps it exact.", "display:block;margin-top:4px;color:var(--warn,#d97706)") : null,
+    h("div", { class: "row", style: "margin-top:8px;flex-wrap:wrap;gap:4px" }, ok.length ? ok.map((g, k) => {
+      const i = c.segs.value.indexOf(active.value[k]);
+      return h("span", { class: ["pill", g ? "ok" : ""], title: g ? "stored and up to date" : "runs on the next Queue" }, [
+        `#${(i >= 0 ? i : k) + 1} ${g ? "💾" : "⏳"}`,
+        (cache.redo || []).includes(k) ? h("button", { class: "chip", title: "Cancel redo and keep the stored take",
+          onClick: () => c.redo([k], true, true) }, "Undo redo") : g ? h("button", { class: "chip", style: "margin-left:4px", title: "generate this shot again on the next Queue"
+          + (plan.redo_only ? " (only this shot)" : " (and the shots that continue from it)"),
+          onClick: () => c.redo([k], !plan.redo_only) }, "↻") : null]);
+    }) : [hint(n ? "Nothing stored yet for this video: Queue the workflow." : "")]),
+    h("div", { class: "row", style: "margin-top:6px;flex-wrap:wrap;gap:6px" }, [
+      hint(ok.length ? `${done}/${ok.length} stored and up to date · ${cache.mb || 0} MB` : ""),
+      h("span", { class: "grow" }),
+      check(!!plan.redo_only, v => c.setPlan("redo_only", v), "↻ redoes only that shot"),
+      ok.length ? h("button", { title: "every stored shot runs again on the next Queue", onClick: () => c.redo(ok.map((_, k) => k), true) }, "↻ Redo all") : null,
+      h("button", { disabled: !done, title: "Put the stored shots together into an MP4 in the output folder now, without generating: "
+        + "one shot in memory at a time, the original video where a shot is skipped or not stored yet, with the soundtrack.",
+        onClick: () => c.combine() }, "🎬 Combine stored shots"),
+    ]),
+    cache.combined ? h("div", { class: "row", style: "margin-top:6px" }, [
+      hint(`✓ ${cache.combined.shots}/${cache.combined.of} shots → `),
+      h("a", { href: cache.combined.url, target: "_blank", style: "margin-left:4px" }, cache.combined.filename)]) : null,
+    hint("Each shot remembers the settings it was made with: the next Queue runs only the shots whose settings changed "
+      + "(and the ones that continue from them). Changing what renders them (model, LoRA, seed, sampler, conditioning) runs every shot again; the join's own settings do not. "
+      + (cache.folder ? `Folder: ${cache.folder}` : ""), "display:block;margin-top:6px"),
+  ], { sub: ok.length ? `${done}/${ok.length} stored` : "nothing stored yet" });
+}
+
+// The planner only works out the second pass size; the graph upscales the latent (e.g. Minimax H3 Latent Upscaler
+// (3D), target dimensions) and samples it again, reading the planner's second_pass / upscale_width / upscale_height
+function secondPassSection(c) {
+  const { plan, size } = c;
+  const sp = { ...DEFAULTS.second_pass, ...(plan.second_pass || {}) };
+  const set = (k, v) => c.setPlan("second_pass", { ...sp, [k]: v });
+  const num = (k, step, min, max) => h("input", { type: "number", step, min, max, value: sp[k],
+    onChange: e => { const v = parseFloat(e.target.value); if (Number.isFinite(v)) set(k, v); } });
+  const out = secondPassSize(size.w, size.h, sp);
+  return section("Second pass (upscale)", [
+    h("div", { class: "row" }, [check(sp.enabled, v => set("enabled", v), "Enable the second pass")]),
+    h("div", { class: "grid", style: sp.enabled ? "" : "opacity:.55" }, [
+      fld("Size", select(sp.mode, [["scale", "Scale by multiplier"], ["dims", "Target dimensions"], ["megapixels", "Megapixels"]], v => set("mode", v))),
+      sp.mode === "scale" ? fld("Multiplier", num("scale", 0.05, 1, 4)) : null,
+      sp.mode === "dims" ? fld("Width", num("width", 8, 64, 8192)) : null,
+      sp.mode === "dims" ? fld("Height", num("height", 8, 64, 8192)) : null,
+      sp.mode === "megapixels" ? fld("Megapixels", num("megapixels", 0.1, 0.1, 16)) : null,
+      fld("Align (px)", num("align", 1, 1, 512), "32 recommended"),
+      fld("Result", size.w ? `${size.w}×${size.h} → ${out.w}×${out.h}` : "—"),
+    ]),
+    hint("The planner outputs second_pass (on/off), upscale_width and upscale_height. Upscale the denoised latent of each shot "
+      + "to that size (e.g. Minimax H3 Latent Upscaler (3D) in target dimensions mode) and sample it again before decoding; "
+      + "use second_pass to switch that branch.", "display:block;margin-top:6px"),
+  ], { sub: sp.enabled ? `on · ${out.w}×${out.h}` : "off" });
 }

 export function runTab(c) {
-  return h("div", { class: "card" }, [checksSection(c), loopSection(c), filtersSection(c)]);
+  return h("div", { class: "card" }, [checksSection(c), memorySection(c), loopSection(c), secondPassSection(c), cacheSection(c)]);
 }
@@ -1,11 +1,9 @@
 // 🎬 Shots tab: one card per shot, then the selected shot's editor (preview, reference & prompt, who is replaced,
 // continuity, copy to other shots).
-import { h, hue, fmtT, segKey, hasMask, maskSource, pill, hint, check, section } from "./common.js";
+import { h, hue, fmtT, segKey, hasMask, maskSource, pill, hint, check, section, refBox, promptChips, pictureColor, markName,
+         MAX_REFS } from "./common.js";
 import { h as rawH } from "../vendor/vue.esm-browser.prod.mjs";

-const GUIDE_COLORS = [["#00ff00", "Green"], ["#9b30ff", "Purple"], ["#ff2020", "Red"], ["#168cff", "Blue"],
-  ["#ffe600", "Yellow"], ["#ff00d4", "Magenta"], ["#00e5c0", "Cyan"]];
-
 const bdg = (text, kind = "", title = "") => h("span", { class: ["bdg", kind], title }, text);

 function shotCard(c, s, i) {
@@ -23,24 +21,26 @@ function shotCard(c, s, i) {
        track: bdg("🎯 track", "", "its part of the whole-video SAM 3 track"),
        sam: bdg("🎯 " + (s.mask.text ? s.mask.text.slice(0, 14) : `${(s.mask.points || []).length} pts`), "", s.mask.text || `${(s.mask.points || []).length} points`) }[maskSource(s)] || null,
      s.crop || s.inpaint || s.paste ? bdg({ paste: "🧩 frame+paste", mask: "🎭 mask only", crop: "✂ crop", cropmask: "✂🎭 crop+mask" }[c.modeOf(s)] + (s.inpaint && s.strength < 1 ? ` ${Number(s.strength).toFixed(2)}` : ""), "on", c.modeName(s)) : null,
-      s.color_guide ? bdg("🎨 color guide", "on", `${s.color_guide_color || "cast color"} · opacity ${s.color_guide_opacity ?? 0.35}`) : null,
+      s.color_guide ? bdg(`🎨 ${1 + s.regions.length}`, "on", [s.color_guide_picture, ...s.regions.map(r => r.picture)]
+        .map(k => `Picture ${k} · ${markName(pictureColor(c.plan, k))}`).join("\n") + ` · opacity ${s.color_guide_opacity ?? 0.35}`) : null,
      s.target ? bdg("🧑 target", "on", s.target) : null,
-      i > 0 && s.chain !== "off" ? bdg("⛓", "on", s.chain === "history" ? `continues the previous shot's last ${s.chainHistory} frames (history)` : `continues from the previous shot's ${s.chainFrame} frame as ${s.chain}`) : null,
+      i > 0 && s.chain !== "off" ? bdg("⛓", "on", s.chain === "history" ? `continues the previous shot's last ${s.chainHistory} frames (history)` : s.chain === "head" ? `starts with the previous shot's last ${Math.min(s.chainHistory, 39)} frames, kept as they are (head)` : `continues from the previous shot's ${s.chainFrame} frame as ${s.chain}`) : null,
+      { ok: bdg("💾", "on", "stored and up to date: the next Queue does not generate it again (Run tab → Stored shots to redo it)"),
+        run: bdg("⏳", "", "not stored yet, or its settings changed: the next Queue generates it") }[c.cacheOf(s)] || null,
      warnN ? bdg(`⚠ ${warnN}`, "warn", issues.map(x => x.text).join("\n")) : null,
    ]),
    who ? h("div", { class: "who" }, who.people.length ? who.people.map(id => h("img", {
-      src: c.personOf(id)?.thumb || "", title: `Person ${id}${id === who.main ? " (main)" : ""}${c.linked(id) ? " · linked" : ""}`,
-      class: [id === who.main && "main", c.linked(id) && "lk"] })) : [h("span", { class: "t" }, "no faces")]) : null,
+      src: c.personOf(id)?.thumb || "", title: `Person ${id}${id === who.main ? " (main)" : ""}${c.included(id) ? " · included" : ""}`,
+      class: [id === who.main && "main", c.included(id) && "lk"] })) : [h("span", { class: "t" }, "no faces")]) : null,
    st ? h("div", { class: "t", style: "margin-top:2px" },
      `👤 ${st.persons} · ${(st.person_area * 100).toFixed(1)}% · 🙂 ${st.faces} · ☀ ${(st.brightness * 100).toFixed(0)}%`) : null,
    why ? h("div", { class: "t", style: "color:#ffc46b" }, why) : null,
    h("div", { class: "t" }, `${fmtT(s.start, fps)} → ${fmtT(s.end, fps)} · ${s.len}f → ${s.gen}f`),
    h("div", { class: "thumbs" }, [
-      ...["ref", "ref2"].map(k => {
-        const own = s[k], via = c.castRef(s, k), name = own || via || plan["global_" + k];
-        return name ? h("img", { class: "rt", src: c.viewUrl(name), title: own ? name : via ? `${name} (from the person)` : `${name} (global)`,
-          style: own ? "" : via ? "outline:1px dashed #8fd18f" : "opacity:.45" }) : h("div", { class: "rt ph2" }, k);
-      }),
+      ...(s.names.length ? s.names.slice(0, 3).map((name, k) => h("img", { class: "rt", src: c.viewUrl(name),
+          title: s.refs.includes(name) ? name : `${name} (global)`, style: s.refs.includes(name) ? "" : "opacity:.45" }))
+        : [h("div", { class: "rt ph2" }, "ref")]),
+      s.names.length > 3 ? h("div", { class: "rt ph2", title: s.names.slice(3).join("\n") }, `+${s.names.length - 3}`) : null,
      h("img", { class: "rt", style: "width:56px", src: showMasks.value && mp?.frames?.length
        ? mp.frames[Math.floor(mp.frames.length / 2)].src : c.thumbFor(s.start + Math.floor(s.len / 2)) }),
    ]),
@@ -74,23 +74,10 @@ function player(c, cur) {
  ]);
 }

-function refSlot(c, name, label, target, field, via = "") {
-  return h("div", { class: "rslot" }, [
-    h("div", { class: ["refslot", !name && via && "via"], title: name ? name + " (click to replace)" : via ? `uses ${via}; click to upload this shot's own` : "click to upload",
-      onClick: () => c.uploadRef(target, field) },
-      name ? [h("img", { src: c.viewUrl(name) })] : via ? [h("img", { src: c.viewUrl(via), style: "opacity:.4" })] : [label]),
-    h("div", { class: "rbtns" }, [name ? h("button", { title: "remove (use the person's / global one)", onClick: () => c.setRef(target, field, "") }, "✕") : null]),
-  ]);
-}
-
 function editor(c, cur) {
  const { plan, sel, segs, maskPrev, targetCrop, vlmSug, busy, usedRefs, copyOpts, COPY_FIELDS } = c;
  const i = sel.value, S = segs.value, k = segKey(cur), mp = maskPrev.value[k], g = vlmSug.value[k];
  const issues = c.checksFor(i);
-  const guideColor1 = cur.color_guide_color || (cur.color_guide_person != null
-    ? (c.castOf(cur.color_guide_person).guide_color || plan.global_color_guide_ref1 || "#00ff00")
-    : (plan.global_color_guide_ref1 || "#00ff00"));
-  const viaRef = f => cur[f] ? "" : (c.castRef(cur, f) || plan["global_" + f] || "");

  const head = h("div", { class: "edhd" }, [
    h("button", { class: "ghost", disabled: i === 0, title: "previous shot (←)", onClick: () => c.select(i - 1) }, "◀"),
@@ -111,30 +98,81 @@ function editor(c, cur) {
    h("div", { class: "ck" }, [h("span", { class: "lvl" }, x.lvl === "warn" ? "⚠" : "ℹ"), h("span", x.text)]))) : null;

  const refPrompt = section("Reference & prompt", [
-    h("div", { class: "row", style: "align-items:flex-start;gap:10px" }, [
-      h("div", { class: "refbox" }, [
-        refSlot(c, cur.ref, "⬆ reference", i, "ref", viaRef("ref")),
-        refSlot(c, cur.ref2, "⬆ ref 2", i, "ref2", viaRef("ref2")),
-      ]),
-      h("div", { style: "flex:1;min-width:200px" }, [
-        h("textarea", { placeholder: "Prompt for this shot (empty = global prompt). Placeholders: {target} {details} {shot} {setting}",
-          value: cur.prompt, onChange: e => c.setMeta(i, "prompt", e.target.value) }),
-        !cur.prompt && plan.global_prompt ? rawH("span", { class: "hint" }, `↳ uses the global prompt: ${plan.global_prompt.slice(0, 120)}${plan.global_prompt.length > 120 ? "…" : ""}`) : null,
-      ]),
+    refBox(c, i, cur.refs, plan.global_refs),
+    h("div", { class: "pbox", style: "margin-top:6px" }, [
+      h("textarea", { placeholder: plan.auto_prompt?.enabled
+        ? "Request for this shot (empty = the global request); 🤖 Auto prompt writes the H3 prompt below from it"
+        : "Prompt for this shot (empty = global prompt). Placeholders: {target} {details} {details@Picture n} {shot} {setting}",
+        value: cur.prompt, onChange: e => c.setMeta(i, "prompt", e.target.value) }),
+      promptChips(c, cur.names, v => c.setMeta(i, "prompt", v)),
+      !cur.prompt && plan.global_prompt ? rawH("span", { class: "hint" }, `↳ uses the global prompt: ${plan.global_prompt.slice(0, 120)}${plan.global_prompt.length > 120 ? "…" : ""}`) : null,
    ]),
-    usedRefs.value.length ? h("div", { class: "recent" }, [hint("recent (click = ref, shift+click = ref 2):"),
-      ...usedRefs.value.map(n => h("img", { src: c.viewUrl(n), title: n, onClick: e => c.setRef(i, e.shiftKey ? "ref2" : "ref", n) })),
+    plan.auto_prompt?.enabled ? (() => {
+      const w = c.writtenOf(cur), old = w?.text && w.for !== c.autoFor(cur);
+      return h("div", { class: "note", style: "margin-top:6px;padding:6px 8px" }, [
+        h("div", { class: "row", style: "gap:6px;align-items:center;margin-bottom:4px" }, [
+          h("b", "🤖 Written prompt"), old ? pill("older than the request / pictures / marks", "warn") : null, h("span", { class: "grow" }),
+          h("button", { class: w?.text ? "" : "pri", disabled: !!busy.value, onClick: () => c.writePrompts([i]) }, w?.text ? "🤖 Write again" : "🤖 Write"),
+          w?.text ? h("button", { class: "dng", title: "forget it: the next run writes a new one", onClick: () => c.setWritten(cur, "") }, "✕") : null,
+        ]),
+        h("textarea", { style: "min-height:140px;font-size:11px", value: w?.text || "",
+          placeholder: "not written yet: 🤖 Write, or the planner's VLM writes it when the workflow runs",
+          onChange: e => c.setWritten(cur, e.target.value) }),
+      ]);
+    })() : null,
+    usedRefs.value.length ? h("div", { class: "recent" }, [hint("recent (click = picture 1, shift+click = add, or drag onto a slot):"),
+      ...usedRefs.value.map(n => h("img", { src: c.viewUrl(n), title: n, draggable: true,
+        onDragstart: e => e.dataTransfer.setData("text/bfs-ref", n),
+        onClick: e => (e.shiftKey ? c.putRefs(i, cur.refs.length, [n]) : c.setRef(i, 0, n)) })),
      h("button", { class: "sm", title: "Forget the recent pictures (the ones this plan still uses stay)", onClick: () => c.clearRecent() }, "✕ clear"),
-      h("button", { class: "sm dng", title: "Remove EVERY reference from this plan (global, all shots, all people) and the recent list", onClick: () => c.clearAllRefs() }, "✕ clear all")]) : null,
+      h("button", { class: "sm dng", title: "Remove EVERY reference from this plan (global and all shots) and the recent list", onClick: () => c.clearAllRefs() }, "✕ clear all")]) : null,
    h("div", { class: "row", style: "margin-top:6px" }, [
-      h("button", { class: "dng", title: "clear this shot's references and prompt: it uses its person's / the global ones",
-        onClick: () => { ["ref", "ref2", "prompt"].forEach(f => { c.meta(i)[f] = ""; }); c.save(); } }, "Use global"),
-      hint("empty slots use the person's reference (Cast) or the global one (Prompts & refs tab)"),
+      h("button", { class: "dng", title: "clear this shot's references and prompt: it uses the global ones",
+        onClick: () => { Object.assign(c.meta(i), { refs: [], prompt: "" }); c.save(); } }, "Use global"),
+      hint("empty slots use the global references (Prompts & refs tab)"),
    ]),
  ], { sub: "who the shot becomes" });

  const mode = (on, title, text, onClick) => h("div", { class: ["mode", on && "on"], onClick }, [h("b", title), h("span", text)]);
-  const who = section("Who is replaced", [
+  // which picture a marked person becomes: "Picture 3 · red" with its thumbnail (the color is the picture's)
+  const picturePick = (k, onPick) => {
+    const n = Math.max(cur.names.length, k), color = pictureColor(plan, k);
+    return h("span", { class: "row", style: "gap:4px;align-items:center" }, [
+      cur.names[k - 1] ? h("img", { class: "mthumb", src: c.viewUrl(cur.names[k - 1]), style: `--mark:${color}`, title: cur.names[k - 1] })
+        : h("span", { class: "mthumb", style: `--mark:${color};display:inline-block;background:${color}` }),
+      h("select", { value: String(k), style: "width:auto", title: "The picture this person becomes; the mark is drawn in its color",
+        onChange: e => onPick(+e.target.value) },
+        Array.from({ length: Math.min(MAX_REFS, n) }, (_, q) => h("option", { value: String(q + 1) },
+          `Picture ${q + 1} · ${markName(pictureColor(plan, q + 1))}${cur.names[q] ? "" : " (no picture)"}`))),
+    ]);
+  };
+  const who = section("Select region", [
+    h("div", { class: "row", style: "margin-top:4px;align-items:center;gap:8px" }, [
+      check(!!cur.color_guide, v => c.setMeta(i, "color_guide", v), "🎨 Colored Mark",
+        "Color each selected person in the source video with the color of the picture they become, as a translucent marker; the prompt gets 'the person marked in <color> becomes the character from <Picture n>'. It does not create or enable an inpainting mask."),
+      cur.color_guide ? h("span", { class: "hint" }, "this selection becomes") : null,
+      cur.color_guide ? picturePick(cur.color_guide_picture, k => { c.setMarkPicture(i, 1, k); if (maskPrev.value[segKey(cur)]) c.previewMask(i); }) : null,
+    ]),
+    cur.color_guide ? h("div", { class: "note", style: "margin:4px 0;padding:6px 8px" }, [
+      ...cur.regions.map((r, j) => h("div", { class: "mreg" }, [
+        h("span", { class: "hint", style: "white-space:nowrap" }, `Person ${j + 2}`),
+        picturePick(r.picture, k => c.setMarkRegion(i, j, "picture", k)),
+        h("input", { type: "text", value: r.text || "", style: "flex:1;min-width:160px", placeholder: "who, in English: e.g. the man on the left",
+          onChange: e => c.setMarkRegion(i, j, "text", e.target.value) }),
+        h("button", { disabled: !!busy.value || !(r.text || (r.points || []).length),
+          onClick: () => c.previewMask(i, { text: r.text || "", points: r.points || [], key: r.key || 0, max_objects: 1,
+            preview_color: pictureColor(plan, r.picture) }) }, "👁 Preview"),
+        h("button", { onClick: () => c.openPoints(i, j + 2) }, (r.points || []).length ? `🎯 Points (${r.points.length})` : "🎯 Points…"),
+        h("button", { class: "dng", title: "remove this person's mark", onClick: () => c.removeMarkRegion(i)(j) }, "✕"),
+      ])),
+      h("div", { class: "row", style: "margin-top:6px;align-items:center;gap:8px" }, [
+        h("button", { disabled: 1 + cur.regions.length >= MAX_REFS, onClick: () => c.addMarkRegion(i) }, "+ Mark another person"),
+        hint(cur.names.length > 1 + cur.regions.length ? "each person: a picture (its color) and a text or points"
+          : "add more pictures (Reference & prompt) to give each person their own"),
+      ]),
+    ]) : null,
+    cur.color_guide ? h("details", { style: "margin:4px 0" }, [h("summary", { class: "hint", style: "cursor:pointer" }, `Opacity · ${Number(cur.color_guide_opacity ?? 0.35).toFixed(2)}`),
+      h("div", { class: "row", style: "margin-top:6px;gap:8px;align-items:center" }, [h("input", { type: "range", min: 0.05, max: 0.8, step: 0.01, value: cur.color_guide_opacity ?? 0.35, style: "flex:1;max-width:320px", onInput: e => { c.meta(i).color_guide_opacity = parseFloat(e.target.value); }, onChange: c.save }), hint("Keeps movement and expression visible.")])]) : null,
    h("div", { class: "row", style: "align-items:center" }, [
      h("input", { type: "text", value: cur.mask.text || "", style: "flex:1;min-width:160px",
        placeholder: "mask: what to segment, in English (woman in pink top, black dog…) · Enter = preview",
@@ -153,14 +191,14 @@ function editor(c, cur) {
      h("span", { class: "hint", style: "white-space:nowrap", title: "A black/white video (white = the subject), e.g. rotoscoped in another tool. It replaces SAM 3 for this shot and covers only this shot: its first frame is the shot's first frame." }, "🎞 mask video"),
      h("select", { value: cur.mask.video || "", style: "flex:1;min-width:160px",
        onChange: e => c.setMask(i, "video", e.target.value) },
-        [h("option", { value: "" }, cur.extMask ? "— none: the global mask video (People & masks) —" : "— none: SAM 3 (text / points) —"),
+        [h("option", { value: "" }, cur.extMask ? "— none: the global mask video (People / Filters / Masks) —" : "— none: SAM 3 (text / points) —"),
         ...c.files.videos.map(v => h("option", { value: v }, v))]),
      h("button", { title: "upload a mask video for this shot", onClick: () => c.pickFile("video/*", name => c.setMask(i, "video", name)) }, "⬆ Upload"),
      cur.mask.video ? h("button", { title: "back to SAM 3 / the global mask", onClick: () => c.setMask(i, "video", "") }, "✕") : null,
    ]),
    maskSource(cur) === "video" ? hint("This shot uses its mask video: the text and points are ignored.", "display:block;margin-top:2px")
-      : maskSource(cur) === "global" ? hint("No mask of its own: this shot uses the global mask video (People & masks tab).", "display:block;margin-top:2px")
-      : maskSource(cur) === "track" ? hint("No mask of its own: this shot uses its part of the whole-video track (People & masks tab).", "display:block;margin-top:2px") : null,
+      : maskSource(cur) === "global" ? hint("No mask of its own: this shot uses the global mask video (People / Filters / Masks tab).", "display:block;margin-top:2px")
+      : maskSource(cur) === "track" ? hint("No mask of its own: this shot uses its part of the whole-video track (People / Filters / Masks tab).", "display:block;margin-top:2px") : null,
    mp ? h("div", { class: "mstrip" }, [
      ...mp.frames.map(f => h("img", { src: f.src, title: `frame ${f.f}` })),
      hint(mp.empty ? "nothing found: the shot runs without a mask" : `mask covers ${(mp.coverage * 100).toFixed(1)}%${cur.crop ? " · yellow = crop box" : ""}`),
@@ -172,69 +210,7 @@ function editor(c, cur) {
      ["crop", "✂ Crop", "A box around the mask is regenerated (more pixels for a small subject); BFS Shot Join pastes it back."],
      ["cropmask", "✂🎭 Crop + mask", "Inside the crop, only the mask is regenerated: the most detail with the background kept."],
    ].map(([k, t, d]) => mode(c.modeOf(cur) === k, t, d, () => c.setMode(i, k)))),
-    h("div", { class: "row", style: "margin-top:8px;align-items:center;gap:8px" }, [
-      check(!!cur.color_guide, v => c.setMeta(i, "color_guide", v), "🎨 Color Guide",
-        "Tint the selected person in the source guide. This is a translucent visual cue; it does not enable H3 mask-only inpainting."),
-      cur.color_guide ? h("label", { class: "row", style: "gap:6px;align-items:center" }, [
-        h("span", { class: "hint" }, "Ref 1 color"),
-        h("select", { value: cur.color_guide_color ||
-          (cur.color_guide_person != null ? (c.castOf(cur.color_guide_person).guide_color || plan.global_color_guide_ref1 || "#00ff00")
-            : (plan.global_color_guide_ref1 || "#00ff00")),
-          onChange: e => c.setMeta(i, "color_guide_color", e.target.value) },
-          GUIDE_COLORS.map(([v, label]) => h("option", { value: v }, label))),
-      ]) : null,
-    ]),
-    cur.color_guide ? h("details", { class: "note", style: "margin:4px 0;padding:6px 8px", open: !!cur.color_guide_text2 }, [
-      h("summary", { style: "cursor:pointer" }, cur.color_guide_text2 ? "Second person · Ref 2" : "+ Add a second person (optional)"),
-      h("div", { class: "row", style: "margin-top:8px;align-items:center;gap:8px" }, [
-        h("span", { class: "hint", style: "white-space:nowrap" }, "Ref 2"),
-        h("input", { type: "text", value: cur.color_guide_text2 || "", style: "flex:1;min-width:160px",
-          placeholder: "Describe the second person for SAM 3",
-          onChange: e => c.setMeta(i, "color_guide_text2", e.target.value) }),
-        h("button", { disabled: !!busy.value || !cur.color_guide_text2,
-          onClick: () => c.previewMask(i, { text: cur.color_guide_text2, max_objects: 1 }) }, "👁 Preview"),
-        h("select", { value: cur.color_guide_color2 || (cur.color_guide_person2 != null
-          ? (c.castOf(cur.color_guide_person2).guide_color || plan.global_color_guide_ref2 || "#9b30ff")
-          : (plan.global_color_guide_ref2 || "#9b30ff")),
-          title: "Choose the marker color for the person matched to ref 2",
-          onChange: e => c.setMeta(i, "color_guide_color2", e.target.value) },
-          GUIDE_COLORS.map(([v, label]) => h("option", { value: v, disabled: v === guideColor1 }, label))),
-      ]),
-      h("details", { style: "margin-top:6px" }, [
-        h("summary", { class: "hint", style: "cursor:pointer" }, "Keep ref 2 color consistent across shots (optional)"),
-        h("div", { class: "row", style: "margin-top:6px;gap:8px" }, [
-          h("span", { class: "hint" }, "Ref 2 identity"),
-          h("select", { value: cur.color_guide_person2 == null ? "" : String(cur.color_guide_person2),
-            onChange: e => { c.setMeta(i, "color_guide_person2", e.target.value === "" ? null : Number(e.target.value)); c.setMeta(i, "color_guide_color2", ""); } },
-            [h("option", { value: "" }, "Choose manually"), ...c.people.value.map(p => h("option", { value: String(p.id) }, `Person ${p.id}`))]),
-        ]),
-      ]),
-      h("details", { style: "margin-top:6px" }, [
-        h("summary", { class: "hint", style: "cursor:pointer" }, `Advanced · opacity ${Number(cur.color_guide_opacity ?? 0.35).toFixed(2)}`),
-        h("div", { class: "row", style: "margin-top:6px;align-items:center" }, [
-          h("span", { class: "hint" }, "Opacity"),
-          h("input", { type: "range", min: 0.05, max: 0.8, step: 0.01, value: cur.color_guide_opacity ?? 0.35,
-            style: "flex:1;max-width:320px", onInput: e => { c.meta(i).color_guide_opacity = parseFloat(e.target.value); }, onChange: c.save }),
-          hint("The default keeps movement and expression visible."),
-        ]),
-      ]),
-    ]) : null,
-    cur.color_guide ? h("details", { style: "margin:4px 0" }, [
-      h("summary", { class: "hint", style: "cursor:pointer" }, `More options · opacity ${Number(cur.color_guide_opacity ?? 0.35).toFixed(2)}`),
-      h("div", { class: "row", style: "margin-top:6px;gap:8px;align-items:center" }, [
-        h("span", { class: "hint" }, "Ref 1 identity"),
-        h("select", { value: cur.color_guide_person == null ? "" : String(cur.color_guide_person),
-          onChange: e => { c.setMeta(i, "color_guide_person", e.target.value === "" ? null : Number(e.target.value)); c.setMeta(i, "color_guide_color", ""); } },
-          [h("option", { value: "" }, "Choose manually"), ...c.people.value.map(p => h("option", { value: String(p.id) }, `Person ${p.id}`))]),
-        cur.color_guide_person != null ? h("button", { class: "ghost", title: "Use the cast member's assigned color",
-          onClick: () => c.setMeta(i, "color_guide_color", "") }, "↩ cast color") : null,
-        h("span", { class: "hint" }, "Opacity"),
-        h("input", { type: "range", min: 0.05, max: 0.8, step: 0.01, value: cur.color_guide_opacity ?? 0.35,
-          style: "flex:1;max-width:240px", onInput: e => { c.meta(i).color_guide_opacity = parseFloat(e.target.value); }, onChange: c.save }),
-      ]),
-    ]) : null,
-    cur.color_guide && !hasMask(cur) ? h("div", { class: "err" }, "Color Guide needs this shot's person selection: add mask text, points or a mask video, then preview it.") : null,
-    cur.color_guide && cur.crop && cur.color_guide_text2 ? h("div", { class: "err" }, "The second Color Guide selection uses the full frame; choose Full frame, Frame + paste or Mask only for this shot.") : null,
+    cur.color_guide && !hasMask(cur) ? h("div", { class: "err" }, "Colored Mark needs a region selection: enter a description, add points, or choose a mask video, then preview it.") : null,
    (cur.crop || cur.inpaint || cur.paste) && !hasMask(cur) ? h("div", { class: "err" }, `${c.modeName(cur)} needs a mask on this shot: a mask text, points or a mask video (or the planner's mask input).`) : null,
    cur.inpaint ? h("div", { class: "row", style: "margin-bottom:6px;align-items:center",
      title: "Opacity of the generation mask: the value of the white inside the mask (1 = fully white, the default). H3 reads a grey mask value as 'regenerate this much': at 0.85 the masked area starts at 85% of the noise and keeps ~15% of the original there. 0.8-0.9 keeps pose, outline and lighting while still swapping; too low copies the original person." }, [
@@ -245,7 +221,7 @@ function editor(c, cur) {
      hint(cur.strength >= 1 ? "regenerates the masked area completely" : `keeps ~${Math.round(100 - cur.strength * 100)}% of the original inside the mask`),
    ]) : null,
    cur.inpaint ? h("div", { class: "note", style: "margin-bottom:6px" }, [h("b", "Mask only / Crop + mask: "),
-      "set BFS Shot H3 Conditioning → inpaint to ", h("b", "per shot (planner)"), " (the default). Raise Expand (People & masks tab) when the new subject is bigger than the old one."]) : null,
+      "set BFS Shot H3 Conditioning → inpaint to ", h("b", "per shot (planner)"), " (the default). Raise Expand (People / Filters / Masks tab) when the new subject is bigger than the old one."]) : null,
    cur.paste ? h("div", { class: "row", style: "margin-bottom:6px;align-items:center",
      title: "What the NEW subject is, in English, for SAM 3 on the result: BFS Shot Join also pastes its outline (when it is bigger than the old one). E.g. person, dog, cat, car. Empty = person." }, [
      h("span", { style: "white-space:nowrap" }, "new subject"),
@@ -276,20 +252,23 @@ function editor(c, cur) {

  const cont = section("Continuity", h("div", { class: "row" }, [
    h("select", { value: cur.chain, style: "width:auto", disabled: i === 0,
-      title: "reference: the previous result's frame becomes one more <Picture n> after this shot's own references. first frame: it is anchored at frame 0 of this shot. history: the END of the previous result (17/34/51 frames) goes just before this shot on H3's timeline, so a long take continues its motion and look (same take only, not across a cut).",
+      title: "reference: the previous result's frame becomes one more <Picture n> after this shot's own references. first frame: it is anchored at frame 0 of this shot. history: the END of the previous result (5/22/39/56 frames) goes just before this shot on H3's timeline, so a long take continues its motion and look (same take only, not across a cut). head: the END of the previous result (5/22/39 frames) becomes the first frames of this shot, kept exactly as they are (not swapped again), and the new frames continue from them; the join cuts them off (same take only, H3 grid).",
      onChange: e => c.setMeta(i, "chain", e.target.value) },
      [h("option", { value: "off" }, "off"), h("option", { value: "reference" }, "previous shot as reference"),
       h("option", { value: "first frame" }, "previous shot as first frame"),
-       h("option", { value: "history" }, "previous shot's end as history (long take)")]),
-    cur.chain === "history"
+       h("option", { value: "history" }, "previous shot's end as history (long take)"),
+       h("option", { value: "head" }, "previous shot's end as this shot's start (kept, long take)")]),
+    cur.chain === "history" || cur.chain === "head"
      ? h("select", { value: String(cur.chainHistory), style: "width:auto", disabled: i === 0,
-          title: "How much of the previous result's end goes before this shot (whole H3 VAE groups). More carries more motion, costs more memory.",
+          title: "How much of the previous result's end goes before this shot. 5 frames is a short context; longer windows carry more motion and use more memory.",
          onChange: e => c.setMeta(i, "chain_history", Number(e.target.value)) },
-          [17, 34, 51].map(n => h("option", { value: String(n) }, `last ${n} frames (${(n / 24).toFixed(1)} s)`)))
+          (cur.chain === "head" ? [5, 22, 39] : [5, 22, 39, 56]).map(n => h("option", { value: String(n) }, `last ${n} frames (${(n / 24).toFixed(1)} s)`)))
      : h("select", { value: cur.chainFrame, style: "width:auto", disabled: i === 0 || cur.chain === "off",
          title: "Which frame of the previous shot's result", onChange: e => c.setMeta(i, "chain_frame", e.target.value) },
          [h("option", { value: "first" }, "its first frame"), h("option", { value: "middle" }, "its middle frame"), h("option", { value: "last" }, "its last frame")]),
    hint(i === 0 ? "the first shot uses only its references"
+      : cur.chain === "head" ? (cur.cut ? "⚠ a camera cut starts this shot: head is skipped (it only carries a continuing take)"
+        : "this shot is generated from earlier: its first frames are the PREVIOUS shot's result, pinned in the latent, and the join cuts them (queue loop: shots run in order). Costs those frames of generation per shot.")
      : cur.chain === "history" ? (cur.cut ? "⚠ a camera cut starts this shot: history is skipped (it only carries a continuing take)"
        : "the end of the PREVIOUS shot's result continues into this one (queue loop: shots run in order). Works with every mask mode, crop and the duet canvas.")
      : "uses a frame of the PREVIOUS shot's result (queue loop, or auto loop with BFS Shot H3 Duet)"),
@@ -298,7 +277,7 @@ function editor(c, cur) {
  const copy = section("Copy to other shots", [
    h("div", { class: "copy" }, Object.entries(COPY_FIELDS).map(([f, label]) =>
      check(copyOpts[f], v => { copyOpts[f] = v; }, label, {
-        ref: "reference + ref 2", prompt: "this shot's prompt", mask_text: "the mask text (shots keep their own points)",
+        ref: "every reference picture", prompt: "this shot's prompt", mask_text: "the mask text (shots keep their own points)",
        points: "the points, on each shot's frame at the same relative position (a subject that stays in place)",
        mask_video: "the shot's mask video (it covers only its own shot: usually you want a different one per shot)",
        crop: "the generation mode (Full frame / Frame + paste / Mask only / Crop / Crop + mask) and its mask strength (shots with a mask)", target: "the {target} description",
@@ -4,8 +4,11 @@ import { h, GRIDS, fld, select, section, pill, hint, fmtT } from "./common.js";
 export function videoTab(c) {
  const { plan, an, files, size, busy, detectorUsed, maxLen } = c;
  const fps = plan.fps;
-  const num = (k, step = 0.1, min = 0) => h("input", { type: "number", step, min, value: plan[k], onChange: e => c.setPlan(k, parseFloat(e.target.value) || 0) });
-  const sel_ = (k, opts, after) => select(plan[k], opts, v => c.setPlan(k, v, after));
+  const num = (k, step = 0.1, min = 0) => h("input", { type: "number", step, min, value: plan[k],
+    onChange: e => c.setPlan(k, parseFloat(e.target.value) || 0,
+      ["max_s", "min_s"].includes(k) ? () => c.autoSplit(true) : undefined) });
+  const sel_ = (k, opts, after) => select(plan[k], opts, v =>
+    c.setPlan(k, v, after || (k === "mode" ? () => c.autoSplit(true) : undefined)));
  const au = an.value?.audio;

  const source = section("Source video", [
@@ -65,26 +68,44 @@ export function videoTab(c) {
        onChange: e => { const v = parseFloat(e.target.value) || 0;
          c.setRange("end_f", v > 0 ? c.range.value.lo + Math.round(v * plan.fps) : 0); } }),
        `from the start frame · ${c.range.value.hi - c.range.value.lo} frames`),
-      fld("Detector", sel_("detector", [["adaptive", "PySceneDetect adaptive"], ["content", "PySceneDetect content"], ["builtin", "Built-in"]])),
+      fld("Detector", sel_("detector", [["adaptive", "PySceneDetect adaptive"], ["content", "PySceneDetect content"], ["builtin", "Built-in"]], () => c.autoSplit(true))),
      fld(`Sensitivity ${Number(plan.sensitivity).toFixed(2)}`, h("input", { type: "range", min: 0, max: 1, step: 0.05, value: plan.sensitivity,
-        onInput: e => { plan.sensitivity = parseFloat(e.target.value); }, onChange: c.save })),
+        onInput: e => { plan.sensitivity = parseFloat(e.target.value); }, onChange: () => { c.save(); c.autoSplit(true); } })),
      fld("Frame grid", sel_("grid", Object.keys(GRIDS))),
      fld("Max seconds / shot", num("max_s", 0.1, 0.2), `= ${maxLen.value} frames (${(maxLen.value / fps).toFixed(2)} s)`),
      fld("Min seconds / shot", num("min_s", 0.1, 0)),
+      fld("Max shots (0 = all)", num("max_parts", 1, 0), "limit how many detected shots are used"),
      fld("Timeline fps", num("fps", 1, 1), "re-analyses"),
    ]),
    h("div", { class: "row", style: "margin-top:8px" }, [
      h("button", { class: "pri", disabled: !plan.video || !!busy.value, onClick: () => c.autoSplit(true) }, "✂ Auto split"),
      h("button", { disabled: !plan.video, onClick: c.analyze }, "↻ Re-analyse"),
      detectorUsed.value ? hint(`detector: ${detectorUsed.value}`) : null,
+      c.allSegCount.value > c.segs.value.length ? hint(`Max shots = ${plan.max_parts}: ${c.allSegCount.value - c.segs.value.length} `
+        + `more shot(s) on the timeline are left out. Set Max shots to 0 to use them all.`, "color:#f0b429") : null,
      hint("Auto split replaces the boundaries; per-shot settings stay with the shot at the same position."),
    ]),
  ], { sub: "camera cuts or fixed length, on the model's frame grid" });

-  const gen = section("Generation size", h("div", { class: "grid" }, [
-    fld("Megapixels", num("megapixels", 0.01, 0.02), size.w ? `${size.w}×${size.h}` : ""),
-    fld("Size multiple", num("multiple", 8, 8)),
-  ]), { sub: "cropped shots use it for the crop" });
+  const updateSize = () => c.autoSplit(false);
+  const genFields = [
+    fld("Size mode", select(plan.generation_size_mode || "megapixels", [
+      ["megapixels", "Megapixel target"], ["original", "Original video"], ["custom", "Custom dimensions"],
+    ], v => c.setPlan("generation_size_mode", v, updateSize))),
+  ];
+  if ((plan.generation_size_mode || "megapixels") === "megapixels")
+    genFields.push(fld("Megapixels", h("input", { type: "number", step: 0.01, min: 0.02, value: plan.megapixels,
+      onChange: e => c.setPlan("megapixels", parseFloat(e.target.value) || 0.5, updateSize) }), size.w ? `${size.w}×${size.h}` : ""));
+  if (plan.generation_size_mode === "custom") {
+    for (const [key, label] of [["custom_width", "Custom width"], ["custom_height", "Custom height"]])
+      genFields.push(fld(label, h("input", { type: "number", step: 32, min: 32, value: plan[key],
+        onChange: e => c.setPlan(key, Math.max(32, parseInt(e.target.value) || 1024), updateSize) })));
+    if (size.w) genFields.push(fld("Output size", `${size.w}×${size.h}`));
+  }
+  if (plan.generation_size_mode === "original") genFields.push(h("div", { class: "hint" }, "Original resolution is rounded to the size multiple for model compatibility."));
+  genFields.push(fld("Size multiple", h("input", { type: "number", step: 8, min: 8, value: plan.multiple,
+    onChange: e => c.setPlan("multiple", Math.max(8, parseInt(e.target.value) || 32), updateSize) })));
+  const gen = section("Generation size", h("div", { class: "grid" }, genFields), { sub: "cropped shots use it for the crop" });

  return h("div", { class: "card" }, [source, an.value ? rng : null, an.value ? split : null, an.value ? gen : null]);
 }