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22 lines
585 B
C
22 lines
585 B
C
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#ifndef SAT_LUM
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#define SAT_LUM
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#pragma parameter ia_saturation "Saturation" 1.0 0.0 5.0 0.1
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#pragma parameter ia_luminance "Value" 1.0 0.0 2.0 0.1
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#include "col_tools.h"
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// Note: saturation 0 does not mean grayscale in this case.
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// It's purely a measure of the saturation of the colors.
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// That is, pure r, g and b each look white.
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vec3 sat_lum(vec3 in_color){
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vec3 out_color = RGBtoHSV(in_color);
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out_color *= vec3(1.0, ia_saturation, ia_luminance);
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out_color = HSVtoRGB(out_color);
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out_color = clamp(out_color, 0.0, 1.0);
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return out_color;
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}
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#endif
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