Thank you for taking the time to reply. This is not really what I was asking. My problem is with people of different colors or translucency. EG a black character with light-skinned characters. Also, the plane would still affect the ground or objects in the same plane. I want to be able to "paint" objects/characters with light. Without having to create layers in PS. If that's possible. I know that there are creators who render characters and backgrounds separately. I am trying to do it all "in camera" per se.