I have this very simple BlendMaterial Setup of a glossy black material with sharp reflections and a blue matte material with dull reflections, when I blend both together in a VrayBlend with a grunge map the highlights of the material stay sharp like as if the matte blue material was not taken into account? The mask has values of pure white so it should should work. How can I fix this?
It works as expected but in your example the lights are too small to be able to easily differentiate.
If you look at your zoomed image, then at the reflection bottom right corner, then you can see it’s working properly.
It looks properly masked to me.
