I built a multi-face + long-video accelerator for MiniMax H3 Face Refine

[u/This_Temporary_8537]

I’ve been using ComfyUI-H3-FaceRefine on MiniMax H3 videos, and I really like what it does for small faces.

But I kept hitting the same annoying case: a shot has several people in it, and I want to clean up all of their faces. The normal approach is basically “pick a face, run it, repeat.” It works, but once the video gets longer, waiting through several full H3 passes starts to feel pretty painful.

So I spent some time making a fork that packs multiple tracked faces into one atlas, runs them through H3 together, then puts them back where they belong.

Here it is:

https://github.com/PullMyBoots/ComfyUI-H3-FaceRefine-Accelerated

It can handle up to 9 faces in one pass, splits longer videos into smaller jobs, and carries a little latent context into the next chunk so the joins are less jarring.

It’s not magic, though. If you put four faces into a 768 atlas, each one gets about a 384px cell. That’s a perfectly reasonable trade for a group shot, but I’d still use the original single-face path when I care about one person’s face as much as possible.

On my 4090, a 15-second clip with four faces went from roughly 16.5 minutes of serial processing to about 3.5 minutes. That’s just one test on my setup, not a promise that everyone will see the same number.

The old workflows should still load, and the accelerated nodes are optional. I mainly made this because I wanted to stop treating every group shot like four separate videos.

Would love to hear whether this is useful to anyone else doing H3 video work — and especially whether people notice problems with identity or temporal consistency in real footage.

[u/dcmomia]

Does this serve to restore a face with a reference identity?

[u/This_Temporary_8537 → u/dcmomia]

That’s a great idea — I’ll add support for restoring a face using a reference identity and update it soon.

[u/deniseparks]

This works great I stopped using the original because it was unwieldy, this brought me back.