VELOPILOT v1 PILOT - AI Character Replacement Video Pipeline================================================================================Created by VelopilotThis is my first public workflow release! Please be kind :) Feedback and suggestions are very welcome.WHAT IT DOES================================================================================A complete multi-stage pipeline for AI-driven character replacement in video: 1. Load any driving video and extract a reference frame 2. Generate a consistent character photo using FLUX.2 Klein 9B FP8 3. Animate via Wan 2.1 SCAIL-2 (motion transfer) 4. Refine details with Wan 2.2 T2V Low Noise 5. Upscale to 32 FPS with RIFE frame interpolationThe result is a seamless video of your character performing the originalsubject's movements, with consistent appearance throughout all frames.KEY FEATURES================================================================================ [OK] Full character replacement in video with motion preservation [OK] Pose/motion transfer to any character [OK] Dual Wan pass: SCAIL-2 for animation + T2V for detail upscaling [OK] Automatic prompt generation via LLM (Gemma 4) from reference image [OK] RIFE frame interpolation to 32 FPS [OK] SAM3 segmentation for precise maskingSYSTEM REQUIREMENTS================================================================================ GPU: NVIDIA RTX 4090 / 5090 (20-24 GB VRAM recommended) Minimum: ~16 GB VRAM (reduce length and disable LLM) ComfyUI: v0.26.0 or newerHOW TO USE================================================================================ 1. Install all custom nodes via ComfyUI Manager first 2. Download all required models (links below) 3. Load the workflow JSON in ComfyUI 4. Load your driving video in the VHS_LoadVideo node 5. Generate a reference character image (or load your own) 6. Click "Queue Prompt" and waitREQUIRED CUSTOM NODES================================================================================ 1. ComfyUI-KJNodes <a target="_blank" rel="ugc" href="https://github.com/kijai/ComfyUI-KJNodes">https://github.com/kijai/ComfyUI-KJNodes</a> 2. rgthree-comfy <a target="_blank" rel="ugc" href="https://github.com/rgthree/rgthree-comfy">https://github.com/rgthree/rgthree-comfy</a> 3. ComfyUI-Easy-Use <a target="_blank" rel="ugc" href="https://github.com/yolain/Comfyui-Easy-Use">https://github.com/yolain/Comfyui-Easy-Use</a> 4. ComfyUI-Custom-Scripts <a target="_blank" rel="ugc" href="https://github.com/pythongosssss/ComfyUI-Custom-Scripts">https://github.com/pythongosssss/ComfyUI-Custom-Scripts</a> 5. ComfyUI-VideoHelperSuite <a target="_blank" rel="ugc" href="https://github.com/Kosinkadink/ComfyUI-VideoHelperSuite">https://github.com/Kosinkadink/ComfyUI-VideoHelperSuite</a> 6. ComfyUI-Frame-Interpolation <a target="_blank" rel="ugc" href="https://github.com/Fannovel16/ComfyUI-Frame-Interpolation">https://github.com/Fannovel16/ComfyUI-Frame-Interpolation</a> 7. ComfyUI-SAM3 <a target="_blank" rel="ugc" href="https://github.com/PozzettiAndrea/ComfyUI-SAM3">https://github.com/PozzettiAndrea/ComfyUI-SAM3</a> 8. ComfyUI-ControlNet-Aux <a target="_blank" rel="ugc" href="https://github.com/Fannovel16/comfyui_controlnet_aux">https://github.com/Fannovel16/comfyui_controlnet_aux</a> 9. ComfyUI-Workflow-Encrypt <a target="_blank" rel="ugc" href="https://github.com/jtydhr88/ComfyUI-Workflow-Encrypt">https://github.com/jtydhr88/ComfyUI-Workflow-Encrypt</a>Note: SCAIL-2 nodes (WanSCAILToVideo, SCAIL2ColoredMask) are built into ComfyUI core since v0.26.0 - no separate install needed.REQUIRED MODELS================================================================================diffusion_models (place in ComfyUI/models/diffusion_models/): [1] flux-2-klein-9b-fp8.safetensors <a target="_blank" rel="ugc" href="https://huggingface.co/black-forest-labs/FLUX.2-klein-9b-fp8/resolve/main/flux-2-klein-9b-fp8.safetensors">https://huggingface.co/black-forest-labs/FLUX.2-klein-9b-fp8/resolve/main/flux-2-klein-9b-fp8.safetensors</a> [2] wan2.1_14B_SCAIL_2_fp16.safetensors <a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/SCAIL-2/resolve/main/diffusion_models/wan2.1_14B_SCAIL_2_fp16.safetensors">https://huggingface.co/Comfy-Org/SCAIL-2/resolve/main/diffusion_models/wan2.1_14B_SCAIL_2_fp16.safetensors</a> [3] wan2.2_t2v_low_noise_14B_fp16.safetensors <a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/Wan_2.2_ComfyUI_Repackaged/resolve/main/split_files/diffusion_models/wan2.2_t2v_low_noise_14B_fp16.safetensors">https://huggingface.co/Comfy-Org/Wan_2.2_ComfyUI_Repackaged/resolve/main/split_files/diffusion_models/wan2.2_t2v_low_noise_14B_fp16.safetensors</a>checkpoints (place in ComfyUI/models/checkpoints/): [4] sam3.1_multiplex_fp16.safetensors <a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/sam3.1/resolve/main/checkpoints/sam3.1_multiplex_fp16.safetensors">https://huggingface.co/Comfy-Org/sam3.1/resolve/main/checkpoints/sam3.1_multiplex_fp16.safetensors</a>vae (place in ComfyUI/models/vae/): [5] flux2-vae.safetensors <a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/flux2-dev/resolve/main/split_files/vae/flux2-vae.safetensors">https://huggingface.co/Comfy-Org/flux2-dev/resolve/main/split_files/vae/flux2-vae.safetensors</a> [6] wan_2.1_vae.safetensors <a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/Wan_2.1_ComfyUI_repackaged/resolve/main/split_files/vae/wan_2.1_vae.safetensors">https://huggingface.co/Comfy-Org/Wan_2.1_ComfyUI_repackaged/resolve/main/split_files/vae/wan_2.1_vae.safetensors</a>text_encoders (place in ComfyUI/models/text_encoders/): [7] qwen_3_8b_fp8mixed.safetensors <a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/flux2-klein-9B/resolve/main/split_files/text_encoders/qwen_3_8b_fp8mixed.safetensors">https://huggingface.co/Comfy-Org/flux2-klein-9B/resolve/main/split_files/text_encoders/qwen_3_8b_fp8mixed.safetensors</a> [8] nsfw_wan_umt5-xxl_bf16.safetensors <a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/Wan_2.1_ComfyUI_repackaged/resolve/main/split_files/text_encoders/nsfw_wan_umt5-xxl_bf16.safetensors">https://huggingface.co/Comfy-Org/Wan_2.1_ComfyUI_repackaged/resolve/main/split_files/text_encoders/nsfw_wan_umt5-xxl_bf16.safetensors</a> [9] gemma-4-E4B-it-ultra-uncensored-heretic-fp8.safetensors <a target="_blank" rel="ugc" href="https://huggingface.co/llmfan46/gemma-4-E4B-it-ultra-uncensored-heretic/resolve/main/gemma-4-E4B-it-ultra-uncensored-heretic-fp8.safetensors">https://huggingface.co/llmfan46/gemma-4-E4B-it-ultra-uncensored-heretic/resolve/main/gemma-4-E4B-it-ultra-uncensored-heretic-fp8.safetensors</a>clip_vision (place in ComfyUI/models/clip_vision/): [10] clip_vision_h.safetensors <a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/Wan_2.1_ComfyUI_repackaged/resolve/main/split_files/clip_vision/clip_vision_h.safetensors">https://huggingface.co/Comfy-Org/Wan_2.1_ComfyUI_repackaged/resolve/main/split_files/clip_vision/clip_vision_h.safetensors</a>loras (place in ComfyUI/models/loras/): [11] Wan21_I2V_14B_lightx2v_cfg_step_distill_lora_rank64.safetensors <a target="_blank" rel="ugc" href="https://huggingface.co/lightx2v/Wan2.1-I2V-14B-480P-StepDistill-CfgDistill-Lightx2v/resolve/main/loras/Wan21_I2V_14B_lightx2v_cfg_step_distill_lora_rank64.safetensors">https://huggingface.co/lightx2v/Wan2.1-I2V-14B-480P-StepDistill-CfgDistill-Lightx2v/resolve/main/loras/Wan21_I2V_14B_lightx2v_cfg_step_distill_lora_rank64.safetensors</a> [12] wan2.2_t2v_lightx2v_4steps_lora_v1.1_low_noise.safetensors <a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/Wan_2.2_ComfyUI_Repackaged/resolve/main/split_files/loras/wan2.2_t2v_lightx2v_4steps_lora_v1.1_low_noise.safetensors">https://huggingface.co/Comfy-Org/Wan_2.2_ComfyUI_Repackaged/resolve/main/split_files/loras/wan2.2_t2v_lightx2v_4steps_lora_v1.1_low_noise.safetensors</a>Auto-downloaded models (no manual download needed): rife49.pth - auto-downloaded by ComfyUI-Frame-Interpolation yolox_l.onnx - auto-downloaded by comfyui_controlnet_aux dw-ll_ucoco_384_<a target="_blank" rel="ugc" href="http://bs5.torchscript.pt">bs5.torchscript.pt</a> - auto-downloaded by comfyui_controlnet_auxIMPORTANT NOTES================================================================================ [*] Custom LoRAs: The workflow includes private character LoRAs (AL1TA_LowNoise for Wan, FLUX 2 AL1TA* for Flux). If you don't have them, simply bypass the "YOUR CHARACTER LORA / BYPASS" nodes in Steps 2 and 3. The workflow works with any LoRA. [*] LLM Pass: The "ENABLE LLM DESCRIPTION" group uses Gemma 4 to auto-generate prompts from your reference image. Disable it if you're low on VRAM or prefer writing prompts manually. [*] SCAIL-2 Modes: replacement_mode = true -&gt; Full character replacement replacement_mode = false -&gt; Motion/pose transfer only [*] Frame Interpolation: RIFE upscales output to 32 FPS. Adjust the multiplier in RIFE nodes for different speeds. [*] VRAM: ~20-24 GB on RTX 5090 32GB. For lower VRAM reduce "length" in WanSCAILToVideo and disable the LLM group.TROUBLESHOOTING================================================================================ [1] Update ComfyUI to latest <a target="_blank" rel="ugc" href="https://docs.comfy.org/installation/update_comfyui">https://docs.comfy.org/installation/update_comfyui</a> [2] Update all custom nodes via ComfyUI Manager [3] Verify all model files are in correct directories [4] Out of VRAM? Reduce length in WanSCAILToVideo (node 143) and disable the LLM groupDISCLAIMER================================================================================This workflow is provided as-is for educational and creative purposes.The author assumes no responsibility for any content generated with it.Users are solely responsible for ensuring their use of all includedmodels, LoRAs, and custom nodes complies with their respective licensesand terms of distribution. Third-party models retain their originallicenses - refer to each model's page on Hugging Face or GitHub forfull terms.================================================================================Made by Velopilot - AI Content CreatorCivitAI: <a target="_blank" rel="ugc" href="https://civarchive.com/user/Velopilot">https://civarchive.com/user/Velopilot</a>================================================================================

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