wstockandClaude Fable 5.1 39e04ae7ab Issue #157: colour-range mask tolerance narrowed so a sample stops at its own colour ...

`tol = 0.04 + 0.16·refine` fully selected anything within 0.06 OkLab of a
sample at the default Refine 50. Through `tonemap_for_select` the report's
teal mid-grey and neutral light grey are only ~0.063 apart (L 0.60 vs 0.72,
a/b ≤ 0.02), so the second patch was 99 % selected and the mask covered the
whole photo; Refine 85 and 100 kept most of it too. Now
`0.015 + 0.06·refine` (full ≤ 0.0225 / gone ≥ 0.045 at Refine 50, gone ≥
0.066 at 85, 0.075 at 100), computed once in
`lightcraft_pipeline::masks::color_range_tolerance` and used by both the CPU
evaluator and the GPU `mask.wgsl` kind-3 parameter so the two keep agreeing.

Test: two flat patches at the report's sRGB values, sampled as
`mask.sampleColor` does; the sampled patch stays fully selected and the other
one is out at Refine 0, 50 and 85 and mostly out at 100.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

2026-10-08 10:52:40 +00:00

..

src

Issue #157: colour-range mask tolerance narrowed so a sample stops at its own colour

2026-10-08 10:52:40 +00:00

tests

GPU tests: drop the edge-pixel tolerance; the coverage mask makes edges match

2026-10-07 20:40:47 -04:00

Cargo.toml

M5.2a: lightcraft-gpu crate (wgpu compute) with the per-pixel stage on the GPU

2026-10-01 02:29:54 -04:00