Brandon ThomasandClaude Opus 5.5 40321f963b M12.4: fast bit-depth quantization ...

8/16 bpc no longer re-quantises the whole comp after every layer: 2D layers
report the canvas region they can change (transformed buffer bounds plus the
resampling margin; stencil modes, motion blur, perspective, styles,
adjustment and 3D runs fall back to the full canvas), and only that region
is quantised. A quantised buffer placed pixel-exactly (integer translation,
Normal, 100%) over a blank canvas needs nothing; invisible layers need
nothing; collapsed precomps quantise per nested layer. The redundant final
comp pass is skipped unless the comp is re-encoded. Solids are filled with a
pre-quantised colour and skip the source pass unless masked. Row-parallel
vectorisable kernel. Debug builds verify every pixel outside the region is
already quantised (whole workspace test suite run with 8 bpc forced: no
violations).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-02 11:11:10 -04:00

..

src

M12.4: fast bit-depth quantization

2026-10-02 11:11:10 -04:00

Cargo.toml

M15.1: web build (eframe wasm) + xtask web

2026-10-02 00:19:35 -04:00