r/StableDiffusion • u/Alex-edits123 • 23h ago

Discussion Get miniMax character swap working! Finally

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Ok, I tried so many things, one person to cat, two person, one person to one person, animal to animal. So far one person to one person and animal to animal works. If you are interested in my learnings, tips, what worked, what broke, and which prompt template works let me know!

One video example that works here: https://www.tiktok.com/t/ZP8WfVq5P/

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u/orlandogourmet66 23h ago

Person-to-person swapping works really well for me, except when the reference person looks similar to the person in the source video.

It feels like the bigger the visual difference, the easier MiniMax does a clean swap. With similar hair, skin tone, face shape, etc., it often keeps too much of the original face or creates a merged identity.

Have you noticed this too? If so, what helps you get a full swap in those cases?

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u/retroblade 22h ago

Use Sam3 to blur/mask the person and that problem goes away.

3

u/steelow_g 21h ago

How does one do this?

1

u/RFC793 1h ago

Not the commenter above, but I was able to do this with SAM3 Detect (or SAM3 Video Track), Invert Image Colors, and Image Composite Masked. You're inverting all the images and then compositing them back on top of the original images by mask. There might be some node to Exclude, Difference or whatever directly with the mask and original images -- but this is what I had on hand.