Light Overlay for BSL Shaders

bsl-light-overlay.md

This is a simple light overlay patch for BSL Shaders ported from Complementary Shaders.

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Usage

1. Unzip BSL Shaders
2. Copy the file showLightLevels.glsl to shaders/lib/util/
3. Open shaders/program/gbuffers_terrain.glsl, add following line before GetLighting(...) and save:

   #include "/lib/util/showLightLevels.glsl"
   

4. Compress the extracted folder shaders again. Make sure the folder it self is first level inside the zip file, not its contents.

showLightLevels.glsl

if (NoU > 0.99) {
    #ifdef OVERWORLD
        float lxMin = 0.000001;
    #else
        float lxMin = 0.8;
    #endif

    if (lmCoord.x < lxMin) {
        vec2 indicatePos = worldPos.xz + cameraPosition.xz;
        indicatePos = 1.0 - 2.0 * abs(fract(indicatePos) - 0.5);
        float minPos = min(indicatePos.x, indicatePos.y);

        if (minPos > 0.5) {
            albedo.rgb *= vec3(0.3, 0.3, 0.05);
            emission = 3.0;
        }
    }
}