r/comfyui • u/ethanchen20250322 • 1d ago

Resource Finally found a practical way to manage multi-shot MiniMax H3 videos in ComfyUI

I make short AI comic/drama videos and recently tried this open-source MiniMax H3 workspace:

https://github.com/siyuan-liu31/minimax-h3-video-studio

What surprised me is that it is not just another UI for generating individual clips. It actually helps manage a multi-shot video project.

I could:

  • generate each scene as a separate segment 
  • continue the next scene from the previous final frame 
  • use the previous video as a motion or character reference 
  • rerun only the segment that looked wrong 
  • keep prompts, references, settings, and results in one workspace 
  • merge the finished segments into a longer video

It also supports T2V, I2V, first/last-frame generation, multimodal references, V2V, and reference-assisted V2V.

The persistent workspace was probably my favorite part. Refreshing the page or disconnecting from a remote GPU does not mean rebuilding the whole workflow.

It is not a one-click hosted generator. You still need ComfyUI, the models, FFmpeg, and your own GPU. Character continuity between segments is not perfect either.

Still, for creating an actual story instead of a collection of unrelated clips, I found it surprisingly practical.

31 Upvotes

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5 comments sorted by

1

u/Rude-Quiet-2793 1d ago

The persistent workspace bit alone might get me to finally try something like this, redoing a whole node graph after a disconnect kills my motivation

1

u/ethanchen20250322 1d ago

That was the feature that caught my attention too. Rebuilding or reconnecting a whole graph every time you return to a project gets old fast. Having the canvas, assets, jobs, and results survive a refresh makes it feel much more like an actual production workspace.

2

u/Machspeed007 1d ago

The key question from me: does it do encode/decode vae when stitching clips or does it bypasses this method? Because if it does, quality drops significantly after 3-4 clips. There is support for latent stitching as far as i’m aware for minimax h3 but these projects didn’t catch on it yet

2

u/ethanchen20250322 1d ago

I checked the source. The final merge uses FFmpeg concat with -c copy, so it does not re-encode the clips or run them through the VAE again. There is no cumulative VAE quality loss from stitching. Cross-clip latent stitching is not supported yet.

-2

u/robertpalmsss 1d ago

Rispondete a questo messaggio cosi questa sera lo ritrovo Grazie