How do I use the "Setup Tracking Scene" feature with Cycles? I'm trying to use the Setup Tracking Scene button(in the Movie Clip Editor) with Cycles. While it works fine in Blender Internal, when I switch it to Cycles, I don't get shading or shadows. Is the setup for compositing in Cycles different from Blender Internal?
Yes it is different. I believe that for cycles you don't have directly a "shadow only" material. You have to do some tricks in material settings(with the node editor).