Hi
Since version 1.5, CoronaLightMat diffuse textures are not showing properly in the viewport. Well, they are, but burned out to white, so really unusable for purpose of UVW mapping. This was not the case in 1.4, where one could clearly see the CoronaLightMtl textures.
Using a workaround of "standard" Corona material for UVW setting, and then re-applying CoronaLightMat seems like a vulgar and thoroughly unnecessary exercise.
Any ideas Gentlemen?