I can't find any documentation about the spotlight. Does anybody where I can find it?
I have a problem (again) with the spotlight. What do Shape and Aperture do? I figured that Shape was needed to be a bit larger than 0 to get soft shadows, just like in the light source. If it's 0, shadows are hard. But, as soon as I say Shape=0.1, change focus and later get back to it, it's zero again.