vertexLight

vec2 clrwl_vertexLight;

Sent to fragment: YES
Remaps: gl_MultiTexCoord1, gl_MultiTexCoord2

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The instance light value attribute, equivalent to Iris’ gl_MultiTexCoord1. Using gl_TextureMatrix[1] converts the range 0.0 - 240.0 to 0.03125 - 0.96875.

Note

clrwl_vertexLight range is 0.0 - 0.9375, but gl_MultiTexCoord1/gl_MultiTexCoord2 ranges are 0.0 - 240.0 as multiple shaderpacks rely on that.

Warning

clrwl_vertexLight represents the instance light value, but this may be different than the real value. The real value is only known after executing the material’s light shader using clrwl_computeFragment. Use with caution.