ComfyUI-FramePackWrapper_Plus
An improved wrapper for the FramePack project that allows the creation of videos of any length based on reference images and LoRAs with F1 sampler.
Features
F1 Sampler Support: Uses the improved F1 video generation method for higher quality and better temporal coherence
LoRA Integration: Full support for HunyuanVideo LoRAs with proper weight handling and fusion options
Timestamped Prompts: Create dynamic videos with changing prompts at specific timestamps
Flexible Input Options: Works with both reference images and empty latents for complete creative control
Resolution Control: Automatic bucket finding for optimal video dimensions
Blend Control: Smooth transitions between different prompts at timestamps
Installation
Clone this repository into your ComfyUI custom_nodes folder:
cd ComfyUI/custom_nodes
git clone https://github.com/ShmuelRonen/ComfyUI-FramePackWrapper_Plus
Install the required dependencies:
pip install -r requirements.txt
Download the necessary model files and place them in your models folder:
FramePackI2V_HY: HuggingFace Link
FramePack_F1_I2V_HY: HuggingFace Link
Model Files
Main Model Options
FramePackI2V_HY_fp8_e4m3fn.safetensors – Optimized fp8 version (smaller file size)
FramePackI2V_HY_bf16.safetensors – BF16 version (better quality)
Required Components
CLIP Vision: sigclip_vision_384
Text Encoder and VAE: HunyuanVideo_repackaged
Usage
Basic Workflow
Load the HunyuanVideo model with your preferred settings
(Optional) Add LoRAs with the FramePackLoraSelect node
Prepare your input image or empty latent
Set up CLIP Vision encoding for image embeddings
Create timestamped prompts with FramePackTimestampedTextEncode
Generate your video with FramePackSampler (F1)
Example Workflow
Timestamped Prompts
Use the following format for timestamped prompts:
[0s: A beautiful landscape, mountains in the background]
[5s-10s: Camera pans to reveal a lake, reflections of clouds]
[10s: A boat appears on the horizon, sailing slowly]
[Xs: prompt]: Starts at X seconds and continues until the next timestamp
[Xs-Ys: prompt]: Active from X seconds to Y seconds
LoRA Usage
Place your HunyuanVideo LoRAs in the ComfyUI/models/loras folder
Use the FramePackLoraSelect node to add them to your workflow
Adjust strength as desired (typically 0.5-1.2)
Set fuse_lora to false for flexibility or true for performance
Node Reference
FramePackSampler (F1)
The main generation node using the F1 sampling technique.
Inputs:
model: The loaded FramePack model
positive_timed_data: Timestamped positive prompts
negative: Negative prompt conditioning
start_latent: Initial latent for generation
start_image_embeds: CLIP Vision embeddings for start image
end_latent: (Optional) End latent for transitions
end_image_embeds: (Optional) CLIP Vision embeddings for end image
initial_samples: (Optional) For video-to-video generation
Various sampling parameters (steps, CFG, guidance scale, etc.)
FramePackTimestampedTextEncode
Encodes text prompts with timestamps for timed conditioning.
Inputs:
clip: CLIP text model
text: Text prompt with timestamps
negative_text: Negative prompt
total_second_length: Video duration in seconds
latent_window_size: Processing window size
prompt_blend_sections: Number of sections to blend prompts
FramePackLoraSelect
Selects and configures LoRA models.
Inputs:
lora: LoRA model selection
strength: LoRA strength (0.0-2.0)
fuse_lora: Whether to fuse the LoRA weights into the base model
prev_lora: (Optional) For chaining multiple LoRAs
LoadFramePackModel / DownloadAndLoadFramePackModel
Loads the FramePack model with various precision options.
Advanced Tips
Resolution Control: Use the FramePackFindNearestBucket node to optimize dimensions
Memory Management: Adjust gpu_memory_preservation for large models
Blending Prompts: Set prompt_blend_sections > 0 for smooth transitions
Multiple LoRAs: Chain several LoRAs together for combined effects
Empty Latents: Use an Empty Latent Image node when starting from scratch
Troubleshooting
CUDA Out of Memory: Reduce resolution, decrease latent_window_size, or increase gpu_memory_preservation
LoRA Loading Issues: Ensure LoRAs are in the correct format (safetensors)
Video Artifacts: Try increasing steps or adjusting CFG/guidance_scale
Acknowledgements
Based on the original ComfyUI-FramePackWrapper by kijai
Uses models from FramePack by lllyasviel
Special thanks to the ComfyUI and Stable Diffusion communities
License
MIT License
Credits
This project is an extension of the original ComfyUI-FramePackWrapper created by kijai. The original wrapper provided the foundation for working with FramePack models in ComfyUI.
ComfyUI-FramePackWrapper_Plus builds upon that foundation by adding support for:
F1 sampler for improved temporal coherence
LoRA integration for customized generation
Timestamped prompts for dynamic video creation
Additional workflow improvements and optimizations
Special thanks to kijai for the original implementation that made this extension possible.