ComfyUI Minimax H3 tiling node update: 2.5MP vid2vid on 12GB VRAM
No-Property3068 · reddit · 2026-11-06
The ComfyUI node "Minimax H3 Temporal Window & Spatial Tiles" got a major update: it splits video generation into spatial tiles and temporal windows, enabling high-resolution video-to-video from the first stage. The author tested 2.5MP on a 12GB RTX card and reports smooth runs with accurate animation transfer, no shifting or ghosting; it also works as a second-stage upscaler for long videos.
Caveat: not recommended for fully generating from stage one — generate normally first, then use this node for stage-two upscaling. Configurable params include window frames (56), overlap (22), tile size (960×544), and tile overlap (256).
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