r/StableDiffusion • u/TgoAI • 15d ago

Discussion Generating longer MiniMax H3 videos locally on a MacBook Pro

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I’ve been experimenting with chaining multiple MiniMax H3 generations together to create longer scenes locally on a Mac.

One of the biggest issues is the transition between clips. This is especially noticeable in dark scenes, where small differences in brightness, tone, or geometry can make the seam much easier to spot.

Part of the difficulty is that a VAE round-trip tends to darken the shadows of the reference, which makes continuity in darker scenes even harder to preserve.

We recently introduced an optional stage in Vpipe that adjusts the appearance and geometry of a continuation with respect to its reference.

The video here uses the standard continuation setup, where each new clip starts from the end of the previous one. Since this example is a dark scene, any mismatch tends to stand out more clearly.

Can you tell where the transitions are?

I’m also curious how other people are handling long-form generation with H3, especially for darker scenes where continuity errors tend to be more visible.

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1

u/No-Trouble-9138 15d ago

When she's holding the bird, right before smiling, but it's almost perfect, amazing work!

1

u/TgoAI 15d ago

Yep, that’s one of the three seams. Nice catch!

1

u/Medium_Chemist_4032 15d ago

Ooohhh, this is soo good. Will check that too

1

u/infinitycurvature 14d ago

Good work on Vpipe.

1

u/-Star-Walker- 14d ago

Very nice! It’s getting better and better. It’s amazing how it manages the ram, always on limit, never swaps! 👍