传统工作流直接使用Wan2.1_I2V_14b模型生成720p视频，存在耗时长的问题。
本工作流采用分阶段采样策略优化视频生成效率，速度提升到2倍以上。
第一步：使用Wan2.1_I2V_14b模型生成228p基础视频。
第二步：通过Wan2.1_fun_1.3b模型进行放大，最终输出720p高清视频。
附件中PNG图片隐藏了工作流信息。只要将它拖入Comfyui界面中即可。
Original Workflow:
The conventional workflow directly utilizing the Wan2.1_I2V_14b model for 720p video synthesis suffers from prolonged processing times.
Optimized Workflow:
This pipeline implements a two-stage sampling strategy to enhance video generation efficiency, reducing the total processing time by over 50%:
Base Video Synthesis: The Wan2.1_I2V_14b model first generates a 228p foundational video sequence.
Resolution Enhancement: The Wan2.1_fun_1.3b model then performs temporally consistent super-resolution upscaling to deliver 720p high-definition output.
The workflow information is hidden in the PNG image attached. You just need to drag it into the ComfyUI interface.
Wan2.1-I2V-14B-480P-gguf:https://huggingface.co/city96/Wan2.1-I2V-14B-720P-gguf/tree/main
Wan2.1-Fun-1.3B-Control: https://huggingface.co/alibaba-pai
text_encoders+clip_vision+vae:https://blog.comfy.org/p/wan21-video-model-native-support
Description
FAQ
Comments (9)
WanFunControlToVideo node missing
Update the ComfyUI kernel to the latest version.
First half runs great. The bottom half gives an error with SamplerCustom. "Mat 1 and Mat 2 shapes cannot be multiplied.
It's teacache. Use fun 13b control, fp8 scaled in second. and 14b teacache not 1.3b, rtx3090 cuda128
... no working now. replace teacache to Comfyui-teacache, bypass skipLayer
Very fast generation time! Tried to use 14b but not sure if my settings are wrong or 5090 is not powerful enough to run it...
5090的显卡都带不动这个工作流？看来配置要求很高啊
The workflow seems to have this Lora in it, but I haven't been able to find it anywhere:
自制\\台步5.safetensors
Is that something custom that you made to improve the quality with a low number of steps?
I also get this error when it's trying to run the SamplerCustom #59
mat1 and mat2 shapes cannot be multiplied (769x1279 and 1536x1536))
Speed is faster but the quality is soso. I can creat 6 seconds video on my 12G video card. more than that have memory run out errors.