H3 long-video ghosting fixed by chaining context windows instead of averaging overlaps
ReferenceFluffy6159 · reddit · 2026-11-10
A Redditor traced H3 video generation "ghosting" on long videos to ComfyUI's context windows averaging their overlaps, which dilutes information across windows. Chaining the windows instead fixes it.
Tested with H3MD 0.4 on a 2:20 music video: same plan, prompts, images and seed (1920x1088, RTX 5090), the averaged version shows warped poses while the chained version stays consistent — a directly reproducible workflow tip.
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