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17 lines
427 B
HLSL
17 lines
427 B
HLSL
#ifndef HSL_INCLUDED
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#define HSL_INCLUDED
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inline float3 HSL2RGB(float3 hsl) {
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int3 n = int3(0, 8, 4);
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float3 k = (n + hsl.x * 12) % 12;
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float a = hsl.y * min(hsl.z, 1 - hsl.z);
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return hsl.z - a * max(-1, min(k - 3, min(9 - k, 1)));
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}
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inline float3 HSV2RGB(float3 hsv) {
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int3 n = int3(5, 3, 1);
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float3 k = (n + hsv.x * 6) % 6;
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return hsv.z - hsv.z * hsv.y * max(0, min(1, min(k, 4 - k)));
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}
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#endif |