That's an interesting test. I like this type of theoritical study (applicable for still life scenes with few objects). At this time my problem is that I have lots of black shadows (as you show on the 2 pictures above), even if I use lot of lights. In Vue 2.1 it's not easy to overcome this problem. There are no quadratic light, each light will produce shadows,... Most of the time these black shadows appear in the wall corners ;=) Yves