LYGIA Shader Library

Dependencies:

• lygia/color/space/rgb2luma.glsl

Use:

luma(<vec3|vec4> color)

Check it on Github

#ifndef FNC_LUMA
#define FNC_LUMA
float luma(float v) { return v; }
float luma(in vec3 v) { return rgb2luma(v); }
float luma(in vec4 v) { return rgb2luma(v.rgb); }
#endif

Dependencies:

• lygia/color/space/rgb2luma.glsl

Use:

luma(<float3|float4> color)

Check it on Github

#ifndef FNC_LUMA
#define FNC_LUMA
float luma(in float color) {
    return float(color);
}

float luma(in float3 color) {
    return rgb2luma(color);
}

float luma(in float4 color) {
    return rgb2luma(color.rgb);
}
#endif

Dependencies:

• lygia/color/space/rgb2luma.glsl

Check it on Github

fn luma(color: vec3f) -> f32 {
    return rgb2luma(color);
}