I'm having an issue with an Alpha Inverse Matte on a 3D layer.
My project is set up with 3 3D solids, one in front of the other, and a light centered on the top one. When I mask the top layer normally, pen tool, the light treats the mask like a window, shining through it. This is the effect I want.
However, I'm trying to create this effect with a type layer so, I used an Alpha Inverse matte on the front solid. The problem is that the light doesn't see the Alpha matte as a "window." Instead, I get a hole in the solid but the shadow cast by it is the shadow of the whole solid.
On the left is the alpha matte on the right is the pen tool mask. Notice that the alpha matte still casts a shadow, while the pen tool mask does not. I'd like the alpha matte (left) to behave like the pen mask (right). Help?
It seems so obvious now but, I just pre-comped the solid with the matte layer and treated that comp as a 3D layer. Then, I could animate all I wanted within the pre-comp and the result would look as I wanted.