Open-source ComfyUI node fixes H3 semantic looping with per-window timelines, still seams and identity drift
Commercial-Ad-3345 · reddit · 2026-11-03
The author open-sourced ComfyUI-H3-SemanticTimeline, an experimental node fixing H3 video generation's looping/restarting behavior across context windows.
Approach:
- Inspired by Kijai's context windows node, but assigns each window its own conditioning describing what should happen at that point
- Only tested with T2V so far; refs untested (might help identity consistency)
Known issues: visible seams, identity drift, and messy cross-window audio — attributed to H3/context windows themselves rather than the node.
Available on GitHub; the author notes it was heavily vibe-coded with GPT-6 Astra + GPT-5.6.
Related event: Open-Source ComfyUI Node Adds Semantic Timeline to Fix H3 Video Looping(3 posts)→
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