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REDESIGNED: ColorFromHSV()

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Replaced Vector3 by direct values, easier to use and understand
This commit is contained in:
raysan5 2020-09-07 19:33:06 +02:00
parent 85d5744679
commit f1ed8be5d7
4 changed files with 12 additions and 12 deletions
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17
src/textures.c
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@ -3433,34 +3433,35 @@ Vector3 ColorToHSV(Color color)
// Returns a Color from HSV values
// Implementation reference: https://en.wikipedia.org/wiki/HSL_and_HSV#Alternative_HSV_conversion
// NOTE: Color->HSV->Color conversion will not yield exactly the same color due to rounding errors
Color ColorFromHSV(Vector3 hsv)
// Hue is provided in degrees: [0..360]
// Saturation/Value are provided normalized: [0.0f..1.0f]
Color ColorFromHSV(float hue, float saturation, float value)
{
Color color = { 0, 0, 0, 255 };
float h = hsv.x, s = hsv.y, v = hsv.z;
// Red channel
float k = fmodf((5.0f + h/60.0f), 6);
float k = fmodf((5.0f + hue/60.0f), 6);
float t = 4.0f - k;
k = (t < k)? t : k;
k = (k < 1)? k : 1;
k = (k > 0)? k : 0;
color.r = (unsigned char)((v - v*s*k)*255.0f);
color.r = (unsigned char)((value - value*saturation*k)*255.0f);
// Green channel
k = fmodf((3.0f + h/60.0f), 6);
k = fmodf((3.0f + hue/60.0f), 6);
t = 4.0f - k;
k = (t < k)? t : k;
k = (k < 1)? k : 1;
k = (k > 0)? k : 0;
color.g = (unsigned char)((v - v*s*k)*255.0f);
color.g = (unsigned char)((value - value*saturation*k)*255.0f);
// Blue channel
k = fmodf((1.0f + h/60.0f), 6);
k = fmodf((1.0f + hue/60.0f), 6);
t = 4.0f - k;
k = (t < k)? t : k;
k = (k < 1)? k : 1;
k = (k > 0)? k : 0;
color.b = (unsigned char)((v - v*s*k)*255.0f);
color.b = (unsigned char)((value - value*saturation*k)*255.0f);
return color;
}