LYGIA Shader Library

Dependencies:

• lygia/color/space/rgb2hsv.glsl
• lygia/color/space/hsv2rgb.glsl

Use:

hueShift(<vec3|vec4> color, <float> amount)

Check it on Github

#ifndef FNC_HUESHIFT
#define FNC_HUESHIFT
vec3 hueShift(in vec3 v, in float a) {
    vec3 hsv = rgb2hsv(v);
    hsv.r += a;
    return hsv2rgb(hsv);
}

vec4 hueShift(in vec4 v, in float a) {
    return vec4(hueShift(v.rgb, a), v.a);
}
#endif

Dependencies:

• lygia/color/space/rgb2hsv.glsl
• lygia/color/space/hsv2rgb.glsl

Use:

hueShift(<float3|float4> color, <float> amount)

Check it on Github

#ifndef FNC_HUESHIFT
#define FNC_HUESHIFT
float3 hueShift(in float3 color, in float amount) {
    float3 hsv = rgb2hsv(color);
    hsv.r += amount;
    return hsv2rgb(hsv);
}

float4 hueShift(in float4 color, in float amount) {
    return float4(hueShift(color.rgb, amount), color.a);
}
#endif