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lightcraft/docs
Brandon ThomasandClaude Opus 5.5 7f40a7a7d9 LR-EXP-COLORSPACE: export in sRGB, Display P3, Adobe RGB (1998) compatible, ProPhoto RGB or Rec. 2020
RenderRequest gains an output space (default sRGB; previews stay sRGB). The per-pixel stage converts
scene-linear Rec.2020 to the target primaries, gamut-maps into the target gamut and encodes with the
target curve, on CPU and GPU (WGSL finish kernel reads the matrix, luma weights and curve from its
parameter block). sRGB output is byte-identical to before on the CPU. Export embeds our own
generated ICC profile for the space; AVIF stays sRGB. ExportOptions.colorSpace, export dialog and
MCP export schema. Tests: P3 colour survives a P3 export (decoded through the embedded profile),
every space/format round-trips its profile, GPU equivalence per space.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-01 12:49:13 -04:00
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