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shaders: Avoid calculating unused values in hsl2rgb. (#3827)

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Dickby 2023-11-11 16:43:31 +01:00 • committed by GitHub
parent db82fc5b09
commit 844da8db56
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1 changed files with 7 additions and 8 deletions
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15
src/render/shaders/Textures.hpp
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@ -258,19 +258,18 @@ vec3 hsl2rgb(vec3 col) {
float sat = col.y; float sat = col.y;
float lum = col.z; float lum = col.z;
vec3 xt = vec3(rcpsixth * (hue - twothird), 0.0, rcpsixth * (1.0 - hue)); vec3 xt = vec3(0.0);
if (hue < twothird) {
xt.r = 0.0;
xt.g = rcpsixth * (twothird - hue);
xt.b = rcpsixth * (hue - onethird);
}
if (hue < onethird) { if (hue < onethird) {
xt.r = rcpsixth * (onethird - hue); xt.r = rcpsixth * (onethird - hue);
xt.g = rcpsixth * hue; xt.g = rcpsixth * hue;
xt.b = 0.0; xt.b = 0.0;
} } else if (hue < twothird) {
xt.r = 0.0;
xt.g = rcpsixth * (twothird - hue);
xt.b = rcpsixth * (hue - onethird);
} else
xt = vec3(rcpsixth * (hue - twothird), 0.0, rcpsixth * (1.0 - hue));
xt = min(xt, 1.0); xt = min(xt, 1.0);