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Merge pull request #228 from dos1/xyz

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utilities: XYZtoRGB: Use sRGB colorspace
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Hirek
2026-11-07 20:25:49 +00:00
committed by GitHub
parent 4cce47aa05 86069c5eab
commit 15e6123ca4
1 changed files with 2 additions and 2 deletions
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4
utilities/color.h
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@@ -15,9 +15,9 @@ glm::vec3
XYZtoRGB( glm::vec3 const &XYZ ) {
// M^-1 for Adobe RGB from http://www.brucelindbloom.com/Eqn_RGB_XYZ_Matrix.html
float const mi[ 3 ][ 3 ] = { 2.041369f, -0.969266f, 0.0134474f, -0.5649464f, 1.8760108f, -0.1183897f, -0.3446944f, 0.041556f, 1.0154096f };
// float const mi[ 3 ][ 3 ] = { 2.041369f, -0.969266f, 0.0134474f, -0.5649464f, 1.8760108f, -0.1183897f, -0.3446944f, 0.041556f, 1.0154096f };
// m^-1 for sRGB:
// float const mi[ 3 ][ 3 ] = { 3.240479f, -0.969256f, 0.055648f, -1.53715f, 1.875991f, -0.204043f, -0.49853f, 0.041556f, 1.057311f };
float const mi[ 3 ][ 3 ] = { 3.240479f, -0.969256f, 0.055648f, -1.53715f, 1.875991f, -0.204043f, -0.49853f, 0.041556f, 1.057311f };
return glm::vec3{
XYZ.x*mi[ 0 ][ 0 ] + XYZ.y*mi[ 1 ][ 0 ] + XYZ.z*mi[ 2 ][ 0 ],