Hey, i’ll start with a scene description: i have a mesh that uses Subsurface shading model. I have a light(point light) with a light function that completely disables any lighting(emissive output set to 0). It works with other shading models, they receive no lighting in this case, but doesn’t work…

I do see what you are saying now, and I appreciate the clarification. I will take this information and try to generate a feature request that summarizes what you have pointed out. Thanks,