mirror of
https://github.com/italicsjenga/slang-shaders.git
synced 2024-11-23 16:11:31 +11:00
22 lines
585 B
C
22 lines
585 B
C
|
#ifndef SAT_LUM
|
||
|
|
#define SAT_LUM
|
||
|
|
|
||
|
|
#pragma parameter ia_saturation "Saturation" 1.0 0.0 5.0 0.1
|
||
|
|
#pragma parameter ia_luminance "Value" 1.0 0.0 2.0 0.1
|
||
|
|
|
||
|
|
#include "col_tools.h"
|
||
|
|
|
||
|
|
// Note: saturation 0 does not mean grayscale in this case.
|
||
|
|
// It's purely a measure of the saturation of the colors.
|
||
|
|
// That is, pure r, g and b each look white.
|
||
|
|
|
||
|
|
vec3 sat_lum(vec3 in_color){
|
||
|
|
vec3 out_color = RGBtoHSV(in_color);
|
||
|
|
out_color *= vec3(1.0, ia_saturation, ia_luminance);
|
||
|
|
out_color = HSVtoRGB(out_color);
|
||
|
|
out_color = clamp(out_color, 0.0, 1.0);
|
||
|
|
return out_color;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|