FramePack Wrapper | Efficient long Video Generation

ComfyUI FramePack Wrapper Description

1. What is the ComfyUI FramePack Wrapper?

The ComfyUI FramePack Wrapper integrates Stanford University's advanced FramePack technology into the ComfyUI environment. FramePack is built on innovative frame context packing techniques that enable efficient and high-quality long video generation with minimal computing resources. The FramePack technology allows you to generate thousands of frames at full 30fps using even modest GPU configurations like 6GB laptop GPUs, making professional video creation accessible to everyone. FramePack's unique approach to video generation feels like image diffusion but delivers exceptional video results.

2. Benefits of ComfyUI FramePack Wrapper:

• Efficient Resource Usage: FramePack generates videos on smaller cloud machines with minimal GPU memory requirements
• O(1) Computation Complexity: FramePack maintains constant processing speed regardless of video length
• Anti-drifting Technology: FramePack solves common issues with video quality degradation over time
• Consistent Quality for Long Videos: FramePack maintains high visual quality even for videos of 30-60+ seconds, without the degradation typical in other video generation models
• No Timestep Distillation: FramePack preserves quality while maintaining efficiency

3. How to Use the ComfyUI FramePack Wrapper

3.1 Generation Methods with ComfyUI FramePack

Example Setup for FramePack:

1. Prepare inputs:
   • In Load Image node: Upload a reference image that will be animated into a video with FramePack
2. Configure key parameters:
   • In FramePackSampler: Set video length (e.g., 5.0 seconds)
   • In Video Combine: Set frame rate (e.g., 30) and output format (e.g., video/h264-mp4)
3. Click run button to run the FramePack workflow
4. The generated FramePack video will be saved according to the settings in your Video Combine node

3.2 Parameter Reference for ComfyUI FramePack

FramePackSampler Node:

• steps: Number of diffusion steps (e.g., 30) - higher values produce better quality but take longer in FramePack
• guidance_scale: Additional guidance strength in FramePack (e.g., 10.00) - higher values adhere more strictly to prompts
• seed: Random seed for reproducible results in FramePack (e.g., 47)
• total_second_length: Duration of the generated video in seconds (e.g., 5.0) in FramePack
• control_after_generate: Controls the anti-drifting sampling method in FramePack (keep as "fixed" for best results)

Video Combine Node:

• frame_rate: Frames per second in the output FramePack video (e.g., 30)
• crf: Compression quality factor (e.g., 19) - lower values = higher quality FramePack videos

3.3. Advanced Optimization with ComfyUI FramePack

Generating Longer Videos with FramePack: One of FramePack's key strengths is the ability to generate extended videos efficiently. To create longer videos:

• Increase the total_second_length parameter in the FramePackSampler node (e.g., from 5.0 to 10.0, 30.0, or even 60.0+)
• Keep control_after_generate set to "fixed" to utilize FramePack's advanced anti-drifting sampling technology
• When generating videos longer than 10 seconds, consider slightly increasing the gpu_memory_preservation value to manage memory usage
• For very long videos (30+ seconds), you may need to reduce the latent_window_size parameter
• FramePack's O(1) computation complexity ensures consistent generation speed regardless of video length
• Write temporal prompts: For longer videos, include words like "gradually," "slowly," "then" to guide temporal flow and describe how elements change over time

Adjusting Video Resolution: To change the output FramePack video resolution, adjust the "Resize Image" node in the workflow:

• Modify the width and height parameters to set your desired FramePack video dimensions
• It's recommended to keep dimensions as multiples of 8 for optimal FramePack results
• Note: Higher resolutions will require more GPU memory and processing time with FramePack
• For larger resolutions, you may need to adjust the gpu_memory_preservation parameter to balance memory usage in FramePack

FramePack Prompt Tips:

• Be highly descriptive about motion and transitions in your prompts for better FramePack results
• Include specific action verbs that describe the desired movement in FramePack
• For best results, describe both the scene and how elements should move/change in FramePack videos

More Information about FramePack

The FramePack technology uses innovative bi-directional sampling methods that break traditional causality constraints to prevent quality degradation in longer videos. Particularly for image-to-video generation, FramePack employs "inverted anti-drifting sampling" which treats the first frame as an approximation target throughout the generation process, ensuring high-quality results even in videos up to 60 seconds or more (1800+ frames).

For additional details and FramePack model downloads:

• FramePack original research by
• ComfyUI FramePack Wrapper implementation by

Acknowledgements

This workflow is powered by FramePack, developed by Lvmin Zhang and Maneesh Agrawala at Stanford University. The ComfyUI FramePack Wrapper is provided by kijai, including tailored workflows and integrations that enable efficient long video generation with FramePack technology. Full credit goes to the original authors for their groundbreaking work on FramePack.