* feat(easy_image_batch): source_batch + source_frames list + selected_* outputs Three-mode input system, two new "selected only" outputs, and an alpha output convention that's explicit about its role. Inputs - source_batch (IMAGE, optional): pre-batched stack, e.g. straight from Load Video. - source_frames (multiline STRING): VFX frame numbers separated by commas, newlines, spaces or any mix. Picks from source_batch and places at the same timeline position. Removes the 4-keyframe ceiling. - placeholder_color: now offers Black / Gray / White (was Black / Gray). - invert_alpha (BOOLEAN, default off = "inpaint"): flips alpha to compositing convention (selected=white) when on. - image1 is now optional (you can drive the node entirely from source_batch + source_frames). At least one of image1 or source_batch must be connected. - start_frame default changed from 0 -> 1 to match VFX 1-based numbering. Mode rules - Mode 1 -- per-slot images: connect imageN, set imageN_frame. - Mode 2 -- source_batch + 4 slots: when imageN is unconnected, imageN_frame doubles as the source pick index AND timeline target. - Mode 3 -- source_batch + source_frames list: when the list is non-empty, the 4 slots contribute ONLY where imageN is explicitly connected -- the imageN_frame defaults (0, 4, 8, 12) do NOT pick from source_batch in this mode, so the list fully controls the selection unless an imageN override is wired. - Priority: source_frames list runs first; manual slots run after and override at the same target index. Output dedup is automatic (set-based). Outputs - image_batch (IMAGE): full timeline with placeholders. Unchanged. - alpha_batch (MASK): renamed from mask_batch; same default convention (selected=0.0/black, empty=1.0/white) so existing wires work unchanged. Toggle invert_alpha for compositing-style. - selected_image_batch (IMAGE, NEW): only the keyframes that landed, packed back-to-back in timeline order. Empty (length 0) if none placed. - selected_frames (STRING, NEW): comma-separated VFX frame numbers, sorted ascending and deduped. Same format as the source_frames input -- round-trips into another easy_ImageBatch instance. Docs - Updated class docstring with input modes + worked example (surfaces in ComfyUI's node tooltip). - New per-node user guide: docs/user_guide/nodes/koolook_image/easy_image_batch.md. - docs/user_guide/README.md graduates easy_ImageBatch from "TBD" to a real link. - CHANGELOG: Unreleased Added/Changed entries cover the full change set. Backward compatibility - Existing workflows wired to image_batch + mask_batch keep working; the second output slot position is unchanged. - The 4-keyframe screenshot pattern (source_batch + 4 slots, no list) is unchanged in behaviour. - start_frame default change affects only newly added nodes; saved workflows keep the value they were saved with. Co-authored-by: Cursor <cursoragent@cursor.com> * feat(easy_image_batch): cut window — rename start_frame -> cut_start_frame, fix source-pick math The 2nd output of Easy Image Batch (Koolook) gets a built-in cut window, replacing the workflow pattern of feeding the output through an external ImageFromBatch (batch_index, length) slicer. Conceptual rename - `start_frame` -> `cut_start_frame` everywhere. - The output now represents VFX frames [cut_start_frame .. cut_start_frame + total_frames - 1]. - Frames placed outside the cut window are dropped from the cut silently and listed in a single end-of-run summary log (replaces the previous per-frame "out of range" warnings). Math fix (real bug) The previous code conflated source pick index and output index under a single `target_index = vfx - start_frame`. That happened to work when start_frame=1 (source pick index = vfx - 1, by coincidence), but produced a wrong source pick whenever start_frame != 1. Now: source pick index = vfx_frame - 1 # hardcoded VFX 1-based output (cut) index = vfx_frame - cut_start_frame # cut window The two are validated independently: - source-side range error -> per-frame warning ("VFX frame N doesn't exist in source_batch") - output-side range -> silent drop, collected into the end-of-run summary Defaults - cut_start_frame=1 (was start_frame=1, so default behaviour for source_batch starting at VFX frame 1 is identical). - total_frames default 16 -> 81 (matches typical VFX shot length). - imageN_frame defaults 0/4/8/12 -> 1/5/9/13 (valid 1-based). - imageN_frame min 0 -> 1 (frame 0 is invalid under VFX 1-based). Console summary Always logged so it's easy to confirm what the node produced. Shape: [easy_ImageBatch] cut window: frames 41..121 (81 frames). 6 placed; 2 outside cut: 1, 27. Docs - Class docstring rewritten with the cut-window model + Examples A (cut_start_frame=1, no cut) and B (cut_start_frame=41, cut). - docs/user_guide/nodes/koolook_image/easy_image_batch.md fully updated to match. - CHANGELOG: new "Changed" entry under [Unreleased] explaining the rename, math fix, defaults bump, and migration notes. Migration notes for users of the previous PR commit - Saved workflows that had start_frame=1 (the default) keep producing identical output -- the math is unchanged in that case. - Saved workflows that set start_frame to a non-1 value will see different source picks (the old code was actually picking the wrong source frame, the new code picks correctly). Re-check those. Co-authored-by: Cursor <cursoragent@cursor.com> * feat(easy_image_batch): shift imageN_frame defaults to 5/9/13/17 The previous 1/5/9/13 cluster put all four default keyframes inside the first 13 frames of an 81-frame timeline. Shifting to 5/9/13/17 keeps the same stride-of-4 but leaves a small gap at the start, which reads cleaner in the node UI and gives a more representative spread of where keyframes commonly land. Updates the doc table and CHANGELOG bullet to match. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Cursor <cursoragent@cursor.com> Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
ComfyUI-Koolook
Kforge Labs for ComfyUI: a project-kit sidebar plus Koolook nodes for VFX, image, and video workflows.
Start here: KForge Labs ComfyUI-Koolook overview
That overview explains the sidebar, snapshots, saved workflows, modules, recovery tools, and included nodes for new users.
The main experience is the Kforge Labs sidebar. It helps you keep a project setup together: favorite nodes, saved workflows, reusable modules, tags, snapshots, and recovery tools.
Kforge Labs Sidebar
Use the sidebar as a reusable project kit.
| Feature | What it does |
|---|---|
| Snapshots | Save and load the whole Kforge Labs state: favorite nodes, workflows, modules, tags, archive, and recovery data. |
| Search | Find nodes, workflows, directories, and tags from one field. Tags keep exact capitalization, so Depth and depth can be separate folders. |
| Nodes | Keep favorite nodes close, grouped by theme or repository name. |
| Workflows | Save the whole script, save a selection of nodes, load workflows, or insert saved modules into the current canvas. |
| Recovery | Use autosaves, starter presets, snapshot library settings, and missing-pack install helpers. |
New here? Start with the KForge overview. Using it inside ComfyUI? Open the operational guide:
- Browse on the web: malkuthro.github.io/ComfyUI-Koolook/web/guide/
- Inside ComfyUI: Kforge Labs sidebar → Tools row → Help (
Hicon). The in-app button opens the bundled offline copy atweb/guide/index.html.
Included Nodes
| Node ID | Display name | Category |
|---|---|---|
EasyWan22Prompt |
Wan 2.2 Easy Prompt (Koolook) | Koolook/Wan_Video |
EasyResize_Koolook |
Easy Resize (Koolook) | Koolook/Image |
EasyAIPipeline |
Easy AI Pipeline (Koolook) | Koolook/Pipeline |
easy_ImageBatch |
Easy Image Batch (Koolook) | Koolook/Image |
KoolookLoadCameraPosesAbsolute |
Koolook Load Camera Poses (Absolute Path) | Koolook/Camera |
Easy_hdr_VAE_encode |
Easy HDR VAE Encode (Koolook) | Koolook/VAE |
Easy_hdr_VAE_decode |
Easy HDR VAE Decode (Koolook) | Koolook/VAE |
The root Koolook nodes and the slim Radiance Koolook VAE wrappers have no
extra Python dependencies beyond torch, which ComfyUI already requires.
Install
ComfyUI-Manager
- Open ComfyUI Manager.
- Choose Install Custom Nodes.
- Install by Git URL:
https://github.com/malkuthro/ComfyUI-Koolook.git - Restart ComfyUI.
- Open the Kforge Labs sidebar tab.
Manual
Clone this repository into ComfyUI/custom_nodes/:
git clone https://github.com/malkuthro/ComfyUI-Koolook.git
Restart ComfyUI after installation.
Learn More
- Public overview: kforgelabs.com/comfyui-projects/comfyui-koolook/
- In-app visual guide: malkuthro.github.io/ComfyUI-Koolook/web/guide/
(offline copy:
web/guide/index.html) - User guide:
docs/user_guide/ - Change history:
CHANGELOG.md - Maintainer docs:
docs/maintainers/ - Fork attribution and provenance:
forks/THIRD_PARTY.md - Versioning reference:
docs/reference/versioning.md
Stability
For production work, install a pinned release tag or commit instead of following a moving branch head. Node IDs are treated carefully so saved ComfyUI workflows continue to load across compatible updates.
License
GPL-3.0. See LICENSE.
This package incorporates and adapts GPL-3.0 code from
fxtdstudios/radiance under
forks/radiance_koolook/. Attribution and per-fork modification notes are
tracked in forks/THIRD_PARTY.md and
forks/forks_manifest.yaml.