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Implement oklab, oklch color space conversion functions, add example, restructure comments in the shaderlib, implements #37

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ChaoticByte 2025-01-17 16:50:34 +01:00
parent 35959290d3
commit 1a21589fc1
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8 changed files with 127 additions and 34 deletions
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6
shaderlib/transparency.gdshaderinc
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@ -1,6 +1,8 @@
// Alpha Blending a over b after Bruce A. Wallace
// source: https://en.wikipedia.org/wiki/Alpha_compositing
/*
Alpha Blending a over b after Bruce A. Wallace
source: https://en.wikipedia.org/wiki/Alpha_compositing
*/
vec4 alpha_blend(vec4 b, vec4 a) {
float alpha = a.a + (b.a * (1.0 - a.a));
vec3 col = ((a.rgb*a.a) + ((b.rgb*b.a) * (1.0 - a.a)) / alpha);