From a render speed/evaluation viewpoint, is a ‘Diffuse Level’ of ‘0’ the exactly same as a ‘Diffuse Level’ of ‘1’ with a ‘Diffuse Colour’ of ‘0,0,0’? If it isn’t, is it possible to expose the ‘Diffuse Level’ parameter (and by extension the ‘Reflection Level’) to be mappable?
yes, it is exactly the same (Unless texture is present), so it does not need to be mappable
Perfect, thanks!