Regarding Fix / Fill / Bounce lights, I concoted a quick comparison image. (1) uses only the primary light source. Mark how dark the right side of the sphere appears, and how much depth is missing from the image. (2) added one dimm fill light (a spot light) to add definition to the right side of the sphere. Much better than just cranking up ambient light. Still, the sphere looks somewhat "added" and not part of the scene. (3) uses three coloured bounce lights, in addition to the fix and fill lights. I exaggerated the light strength to show the point. ;) Now, the sphere integrates far better with the scene. ta, -Sascha.rb