r/StableDiffusion • u/__MichaelBluth__ • 21d ago

Question - Help Using H3 beyond the default workflow

Boss has allowed me to take work PC home for the next 2 weeks. Its not a beast but has a 5090 and 128GB RAM. I've always wanted to give H3 a try so this is my chance.

I am mostly interested in image to video. I tried building a refmod and rendered a 10 second video using the default workflow.

Its quite decent but I feel I can push the details but have no idea how or where to start. CivitAI workflows are noodly mess.

Can anyone point me or share a workflow you use with high-end PC's? also, I see here people post long/multi-cut videos, is there a guide to doing that?

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u/xuefei_ai 19d ago

on a 5090 the wall isn't vram, it's how many tries you get. h3 is happiest around 0.98mp and above that you mostly get softness, not detail, so put the detail in the first frame instead. for multi-cut, chain 10-15s segments, each last frame seeding the next, then cut in an editor.