ComfyUI-WanAnimatePlus

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Multi-reference image injection and seamless video connection for ComfyUI's WanAnimate pipeline.

Overview

ComfyUI-WanAnimatePlus adds five major feature groups to the WanVideo workflow:

prefix_frames & transition_video

• prefix_frames: allows passing 1–5 additional reference images for multi-reference guided generation
• transition_video: allows passing the last 21 frames of the previous video segment for seamless video connection

When used together, canvas layout and frame offsets are automatically coordinated without conflicts.

Bernini

Supports Bernini models. Allows passing source video, reference video, or reference images as generation conditions. Supports v2v, rv2v, r2v, and t2v tasks.

Use cases:

• Multi-shot video sequence generation
• Video continuation / extension
• Motion transfer with multi-reference control
• Video editing with source video + reference images
• Reference-to-video generation

SCAIL-2 Embeds

Adds a wrapper-native WanAnimatePlus SCAIL_2 Embeds node for SCAIL-2 models. It prepares reference image, driving pose, colored pose mask, reference mask, optional prefix/transition hard-freeze latents, and prefix-aligned colored masks for the WanAnimatePlus sampler.

Official-Compatible SCAIL-2 Flow Nodes

Adds WanAnimatePlus SCAIL_2 Flow Embeds, WanAnimatePlus SCAIL_2 Flow Sampler, and WanAnimatePlus VAE Decode. These nodes use official ComfyUI MODEL, VAE, CONDITIONING, LATENT, and IMAGE interfaces so they can fit into official-style workflows while preserving WanAnimatePlus SCAIL-2 prefix, transition, bg, mask, loop colormatch, and two-phase sampling behavior.

Official-Compatible Animate2 Embeds

Adds WanAnimatePlus Animate2 Embeds for official ComfyUI Animate2 models. It maps Plus-style ref_image, prefix_frames, and bg_image onto official Animate2 CONDITIONING (concat_latent_image, concat_mask, pose_video_latent) and LATENT. Sample with the same WanAnimatePlus SCAIL_2 Flow Sampler used by SCAIL-2 Flow; there is no separate Animate2 sampler.

Demo

RunningHub Online Workflow Examples

RunningHub is an online ComfyUI compute platform. If your local hardware cannot run AI models, you can run the workflows below for free on RunningHub; register through the links to receive 1000 credits.

Scail2 Ultra-long Video Two-stage Sampling Non-degradation Workflow	Ultra-powerful all-in-one WanAnimate Plus version workflow
https://www.runninghub.ai/post/2073345711527444480/?inviteCode=rh-v1565	https://www.runninghub.ai/post/2073345712362110976/?inviteCode=rh-v1565

prefix_frames & transition_video usage

prefix_frames demo

transition_video demo

Features

prefix_frames (Multi-Reference Injection)

Allows 1–5 additional reference images. Internally expands the canvas pixel space and encodes reference images across the front frames, with automatic frame offset coordination for control signals (pose / face).

• Supports 1–5 reference images (truncated if exceeding 5)
• Auto-resizes reference images to target resolution
• Automatically aligns frame offsets for pose / face / bg / mask signals

transition_video (Seamless Video Connection)

Allows passing the last 21 frames of the previous video segment. Writes these pixel frames directly into the front of the generation canvas, with sampled+reversed padding for control signal offsets.

• Automatically coordinates with prefix when both are used

Bernini

Generates condition latents from source video, reference video, and/or reference images via VAE encoding. Supports v2v, rv2v, r2v, and t2v — task is auto-detected from connected inputs.

• Reference images kept at native aspect ratio
• Compatible with context windows

SCAIL-2

Provides SCAIL-2 ref / pose / mask conditioning through WanAnimatePlus SCAIL_2 Embeds.

• Encodes ref_image, pose_images, pose_image_mask, prefix_frames, prefix_mask, bg_image, and reference_image_mask
• Aligns SCAIL-2 inputs to 32-pixel multiples before VAE encoding
• Supports animation and replacement modes
• Supports single-frame prefix reference encoding and optional transition_video hard-freeze conditioning
• By default, prefix_frames are encoded as full-resolution reference latents and do not expand the output canvas; disable single_frame_prefix_encoding to use the legacy 37 front pixel-frame prefix layout
• In single-frame prefix mode, prefix_mask follows the same reference-mask path as reference_image_mask
• Supports context-window sampling; non-first windows can see prepended prefix/transition context without fusing those prepended predictions

Animate2

Provides official Animate2 conditioning through WanAnimatePlus Animate2 Embeds, sampled by WanAnimatePlus SCAIL_2 Flow Sampler.

• Maps ref_image, prefix_frames, and bg_image onto official concat_latent_image / concat_mask / pose_video_latent
• prefix_frames are extra frozen identity latents (max 5) and are trimmed after sampling
• bg_image fills the unknown canvas instead of mid-grey and remains generated
• Internal looping uses a 5-frame concat/mask handoff when frame_window_size is smaller than num_frames
• Does not wrap official WanAnimate2Cache / PoseBranchCache; use those nodes directly when caching is needed

Installation

Place this repository into ComfyUI's custom_nodes directory:

cd ComfyUI/custom_nodes
git clone https://github.com/wuwukaka/ComfyUI-WanAnimatePlus.git

Restart ComfyUI after installation.

Important

: To use prefix_frames, transition_video, Bernini, or SCAIL_2 Embeds, you must replace the full workflow chain with WanAnimatePlus nodes. Mixing WanAnimatePlus nodes with original WanVideoWrapper nodes in the same workflow will result in degraded output.

Quick Start

1. Start ComfyUI and confirm the WanAnimatePlus nodes appear under the WanAnimatePlus category
2. Replace the entire workflow chain with WanAnimatePlus counterparts: ModelLoader, VAELoader, ContextOptions, AnimateEmbeds, Sampler, Decode, and supporting nodes
3. Do not mix original WanVideoWrapper nodes in the same workflow
4. For SCAIL-2 and WanAnimate workflows, WanAnimatePlus Easy Sampler or WanAnimatePlus Easy SamplerSettings is recommended because they keep the full sampler functionality while exposing only the common controls
5. For official ComfyUI MODEL/VAE/CONDITIONING/LATENT/IMAGE chains:
   • SCAIL-2: WanAnimatePlus SCAIL_2 Flow Embeds -> WanAnimatePlus SCAIL_2 Flow Sampler -> WanAnimatePlus VAE Decode
   • Animate2: WanAnimatePlus Animate2 Embeds -> WanAnimatePlus SCAIL_2 Flow Sampler -> WanAnimatePlus VAE Decode
6. Connect prefix_frames and/or transition_video inputs as needed
7. Example workflows are available in the example_workflows/ directory

Nodes

WanAnimatePlus exposes a complete workflow chain to avoid cross-package object mixing with the original WanVideoWrapper nodes.

Core nodes:

• WanAnimatePlus ModelLoader
• WanAnimatePlus VAELoader
• WanAnimatePlus TextEncodeCached
• WanAnimatePlus ClipVisionEncode
• WanAnimatePlus ContextOptions
• WanAnimatePlus AnimateEmbeds
• WanAnimatePlus Sampler / WanAnimatePlus Samplerv2
• WanAnimatePlus Easy Sampler / WanAnimatePlus Easy SamplerSettings
• WanAnimatePlus Scheduler / WanAnimatePlus Schedulerv2
• WanAnimatePlus Decode / WanAnimatePlus Encode
• WanAnimatePlus LoraSelect / WanAnimatePlus LoraSelectMulti / WanAnimatePlus SetLoRAs
• WanAnimatePlus BlockSwap / WanAnimatePlus SetBlockSwap
• WanAnimatePlus TorchCompileSettings
• WanAnimatePlus SamplerExtraArgs
• WanAnimatePlus Uni3C ControlnetLoader / WanAnimatePlus Uni3C Embeds
• WanAnimatePlus Bernini
• WanAnimatePlus SCAIL_2 Embeds
• WanAnimatePlus SCAIL_2 Flow Embeds
• WanAnimatePlus SCAIL_2 Flow Sampler
• WanAnimatePlus Animate2 Embeds
• WanAnimatePlus VAE Decode

WanAnimatePlus Easy Sampler / Easy SamplerSettings

These nodes are recommended for SCAIL-2 and WanAnimate workflows. They simplify the visible node panel to common controls such as steps, cfg, shift, seed, force_offload, and scheduler, while still using the full WanAnimatePlus sampler settings and feature path underneath.

WanAnimatePlus Easy Sampler runs sampling directly. WanAnimatePlus Easy SamplerSettings outputs SAMPLER_ARGS for use with WanAnimatePlus SamplerFromSettings.

WanAnimatePlus AnimateEmbeds

Core node, replaces the original WanVideoAnimateEmbeds.

New inputs:

Input	Description
prefix_frames	1–5 additional reference images for multi-reference guided generation
transition_video	Last 21 frames of the previous video segment for seamless video connection

Other inputs are identical to the original WanVideoAnimateEmbeds: vae, width, height, num_frames, ref_images, pose_images, face_images, bg_images, mask, start_ref_image, clip_embeds, etc.

WanAnimatePlus Bernini

Generates condition latents from source video, reference video, and/or reference images for Bernini models.

Inputs:

Input	Description
vae	VAE model for encoding
width / height / num_frames	Output dimensions
source_video	Source video to edit/restyle (v2v/rv2v). Resized to width/height
reference_video	Moving content to composite (video insertion), native aspect
reference_images	Reference image(s) as in-context tokens (r2v/rv2v). Native aspect
ref_max_size	Max long-edge size for reference media (default 848)
force_offload	Offload VAE after encoding to save VRAM
tiled_vae	Use tiled VAE encoding for memory savings

The task (v2v, rv2v, r2v, t2v) is automatically inferred from which inputs are connected.

WanAnimatePlus SCAIL_2 Embeds

Creates SCAIL-2 conditioning for WanAnimatePlus sampling. Use this node with SCAIL-2 checkpoints that include the pose and mask streams.

Inputs:

Input	Description
vae	VAE model for encoding
width / height / num_frames	Target dimensions; width and height are aligned to multiples of 32
ref_image	Reference image for SCAIL-2 conditioning
bg_image	Optional single background image for animation mode. In single-frame mode it is encoded as an extra background reference latent; in legacy canvas-prefix mode it is appended after user prefix_frames. Ignored in replacement mode
pose_images	Driving pose video/images, encoded at half resolution
pose_image_mask	Colored per-identity pose mask sequence
prefix_mask	Optional colored mask images matching prefix_frames; in single-frame mode it follows the reference-mask path, and in legacy canvas-prefix mode it is expanded as 1+4+4... and written into prefix pixel mask frames
reference_image_mask	Colored reference mask image
replacement_mode	Enables SCAIL-2 replacement-mode RoPE and reference-mask compositing
preserve_main_ref_background	Animation mode only; keeps the main reference image background when enabled, or uses reference_image_mask as a black-background alpha crop when disabled. Ignored in replacement mode
single_frame_prefix_encoding	Encodes prefix_frames as individual full-resolution reference latents instead of expanding the canvas; enabled by default
prefix_frames	Optional prefix images. In default single-frame mode these become reference-stream latents; with single-frame mode disabled they hard-freeze the front canvas
transition_video	Optional transition frames to hard-freeze at the front of the latent sequence
clip_embeds	Optional CLIP vision features from WanAnimatePlus ClipVisionEncode
force_offload / tiled_vae	Memory controls for VAE encoding

transition_colormatch can be set to auto_drift for lightweight SCAIL-2 loop seam correction. It does not run full color-distribution matching; instead, it compares RGB means from up to the last 5 frames of the previous segment and up to the first 5 frames of the current segment, then lightly corrects the current output segment. When transition_video is connected, the first segment uses up to the last 5 transition frames as its reference.

For short generations, context windows are optional. For long generations or low VRAM, context windows are recommended. In context-window mode, single-frame prefix references remain visible through the SCAIL-2 reference stream. Legacy canvas prefixes and transition latents are prepended for model context and removed before overlap fusion.

For SCAIL-2, the default single_frame_prefix_encoding mode does not expand or trim the output for prefix_frames. If transition_video is connected, the front canvas expands by 21 pixel frames and those 21 frames are trimmed after decoding. With single_frame_prefix_encoding disabled, prefix_frames use the legacy 37 front pixel-frame canvas layout, with transition frames placed at frames 17-36 when transition_video is also connected.

When bg_image is connected in animation mode, the node internally adds a white mask for that background image. User-provided prefix_frames and prefix_mask are limited to four images each so the background can occupy the remaining reference/prefix capacity. In replacement mode, bg_image is ignored.

WanAnimatePlus SCAIL_2 Flow Embeds / Flow Sampler / VAE Decode

These nodes are for official ComfyUI type chains and do not depend on legacy WANVID... input/output types. Flow Embeds accepts official CONDITIONING, VAE, images, and masks, then outputs updated CONDITIONING and LATENT; Flow Sampler samples through the official sampler core; WanAnimatePlus VAE Decode can decode ordinary latents and can also return decoded video stored inside the LATENT object by Flow Sampler's internal loop.

The Flow nodes preserve the main SCAIL-2 behavior: bg_image occupies one prefix/reference slot in animation mode, final reference order remains prefix -> main ref -> bg, transition_video uses a 21 front pixel-frame hard-freeze canvas that is trimmed from output, loop mode uses a random chunk seed per chunk, and transition_colormatch / auto_drift reuse WanAnimatePlus SCAIL-2 loop seam correction.

single_frame_prefix_encoding is fixed on and is not exposed in Flow Embeds. Two-phase controls are provided directly on Flow Sampler: phase1_mask, phase2_mask, and phase2_start_step. These masks are protection strengths: 1=freeze/protect, 0=free denoise.

When the upstream official model already has a context handler, Flow Sampler disables its internal loop and leaves context sampling to the official path. In that case, two-phase settings only affect internal-loop handoff chunks and do not force-control official context sampling.

The same Flow Sampler also runs WanAnimatePlus Animate2 Embeds. It detects Animate2 runtime on the latent, trims identity frames after sampling, and uses a 5-pixel-frame internal-loop handoff. Two-phase, colormatch, canvas-expansion, and freeze-mask controls stay on the node but are ignored for Animate2.

WanAnimatePlus Animate2 Embeds

Official ComfyUI-compatible Animate2 conditioning for Animate2 checkpoints. Outputs positive, negative, and latent only; loop/prefix/bg state stays inside the latent. Sample with WanAnimatePlus SCAIL_2 Flow Sampler, then decode with WanAnimatePlus VAE Decode. Official WanAnimate2Cache / PoseBranchCache remain the cache nodes to use when needed.

Inputs:

Input	Description
positive / negative	Official text CONDITIONING
vae	VAE for encoding ref / prefix / bg canvas / pose
width / height / num_frames	Target size and output length; width and height are aligned to multiples of 32, num_frames to 4n+1
frame_window_size	Internal-loop window. When it is smaller than num_frames, Flow Sampler loops with a 5-frame handoff
batch_size	Latent batch size
pose_strength / ref_strength	Official extra-cond strengths; not multiplied onto latents
clip_vision_output	Optional CLIP vision for the identity/ref path
clip_vision_output_pose	Optional CLIP vision for the pose path; falls back to clip_vision_output
positive_pose	Optional pose-branch text CONDITIONING; falls back to positive
ref_image	Official identity slot (frame 0), frozen (concat_mask=0) and trimmed after sampling
prefix_frames	Up to 5 extra frozen identity latents after the official ref slot; trimmed from output so length stays num_frames
bg_image	Optional single image that fills the unknown canvas instead of mid-grey; still generated (concat_mask=1)
pose_images	Driving pose video/images. Pose latent time is padded so pose_T = gen_T - 1
tiled_vae	Use tiled VAE encoding when available

Animate2 does not use SCAIL-2 replacement_mode, prefix masks, two-phase sampling, or loop colormatch. Identity frames are frozen through concat_mask; bg_image is a canvas fill, not a second frozen ref slot.

Long pose sequences in loop mode may spill to a temporary disk cache. If the official model already has a context handler, Flow Sampler disables its internal loop and leaves context sampling to the official path.

Project Structure

ComfyUI-WanAnimatePlus/
├─ wanvideo/                 # WanVideo core model code
├─ nodes.py                  # Core WanAnimatePlus embeds / encode / decode nodes
├─ nodes_sampler.py          # Core WanAnimatePlus sampler / scheduler nodes
├─ nodes_animate2.py         # Official-compatible Animate2 Embeds node
├─ animate2_flow.py          # Animate2 prefix / bg / 5-frame loop helpers
├─ scail2_flow.py            # Official-compatible SCAIL-2 Flow helpers
├─ scail2_loop_inputs.py     # Temporary disk cache for Flow / Animate2 loop inputs
├─ nodes_model_loading.py    # Core WanAnimatePlus model / VAE / LoRA / block swap nodes
├─ context_windows/          # Context-window scheduling
├─ cache_methods/            # Cache acceleration
├─ utils.py                  # Shared utilities
├─ docs/
│  └─ images/                # Documentation images
├─ example_workflows/        # Example workflows
├─ __init__.py               # Node registration entry point
├─ pyproject.toml
├─ requirements.txt
└─ LICENSE

FAQ

1. Nodes not showing after installation

• Verify the repo path is ComfyUI/custom_nodes/ComfyUI-WanAnimatePlus
• Ensure the original ComfyUI-WanVideoWrapper is also installed
• Restart ComfyUI and search for WanAnimatePlus in the node list

2. Conflicts with original nodes?

No. All node names use the WanAnimatePlus prefix, completely avoiding conflicts with the original WanVideo prefixed nodes. Both can be installed simultaneously.

3. How many images for prefix_frames?

3 is recommended. Up to 5 are accepted (excess is truncated). The node works with fewer than 3 as well, but the coverage range will be smaller.

4. How many frames for transition_video?

Input is automatically cropped to 21 frames (padded with the first frame if insufficient).

5. How do I run official Animate2 models?

Use WanAnimatePlus Animate2 Embeds -> WanAnimatePlus SCAIL_2 Flow Sampler -> WanAnimatePlus VAE Decode. There is no separate Animate2 Sampler. Official WanAnimate2Cache / PoseBranchCache stay the cache nodes.

Acknowledgments

Modified from kijai/ComfyUI-WanVideoWrapper. Deep respect to the original author for their tremendous contributions to the WanVideo ecosystem.

Thanks to checknickname/ComfyUI-Scail2-Sampler-Helper for the SCAIL-2 two-phase sampling idea, and to user2318/ComfyUI-CustomNodeKit for implementation reference. See NOTICE for attribution details.

Contact

• Bilibili: @wuwukasi
• Email: wuwukawayi@gmail.com

Sponsorship

If you find this project helpful, consider supporting me! Your support is what keeps this project going and motivates me to continue improving it.

Every contribution, no matter how small, means a lot and helps me dedicate more time to development and new features. Thank you!

License

This project is an independently maintained fork / derivative project based on kijai/ComfyUI-WanVideoWrapper and is released under the Apache License, Version 2.0. Thanks again to kijai and the original contributors for their work.

Modified portions and newly added source expression by wuwukasi/wuwukaka are Copyright (c) 2026 wuwukasi/wuwukaka. See NOTICE for attribution, authorship scope, and modification notice details.