ComfyUI-RMBG v3.3.0 adds temporal video matting, hair-grade detail cutouts and canvas compositing

Narrow-Particular202 · reddit · 2026-10-21

Open-source ComfyUI matting plugin ComfyUI-RMBG shipped v3.3.0 consolidating weeks of work:

• Canvas interactive compositing node: move/rotate/scale/flip layers with opacity on-canvas, up to 5 dynamic layer inputs, true 4-channel RGBA output (no more clipped transparency), and auto-merged foreground masks for downstream inpainting/relighting
• VRMBG video background removal: integrates BRIA AI's VRMBG-3.0 with autoregressive temporal state tracking to kill frame-by-frame edge jitter; chunked batch reset avoids VRAM fragmentation and GPU TDR timeouts; fully offline
• FeyNoBg fine-detail matting: 263M Swin-L backbone targeting wispy hair, fur, glassware, lace and motion-blurred edges, with a sub-pixel refineforeground toggle
• Finegrain box segmenter: Swin-B MVANet up to 1024px, plugs into Florence-2/YOLO BBOX outputs for detection-to-matting pipelines

Example workflow JSONs included; fully offline once models are dropped into ComfyUI/models/RMBG/.

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