ComfyUI-PETSCII: convert images and video to authentic C64 glyph art
PurzBeats · x · 2026-08-19
Open-source ComfyUI-PETSCII converts images and video into authentic Commodore 64 PETSCII art inside ComfyUI. Key technical points:
- Optimal glyph and colour matching in Oklab: every cell brute-forces all 256 screen codes × 16 foreground colours to minimise squared Oklab error, with the background chosen via a full 16-candidate search.
- Temporal hysteresis for video, so frame-by-frame matching doesn't "boil" and flicker.
- Output is C64-true: real screen codes, 1000 cells, one global background colour.
- Easy install — drop into customnodes/, with numpy as the only dependency; nodes appear under image/petscii, with example workflows included.
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