Realism.glsl (Dolphin Post Processing Shader)

/*
    Realism.fx by Andrew Porter

    Makes lighting appear more realistic by making darkness darker and lightness lighter.

*/


float4 fshRealism(float4 color) {
    color.a = 0.5f * dot(color.rgb, vec3(0.3333333333333333f));
    color.rgb = (color.rgb * color.a) + color.rgb - (color.a);

    return color;
}

void main() {
    float4 color = Sample();
    SetOutput(fshRealism(color));
}