Hello. I'm new to Maya modeling and I was trying to bake some textures and I don't understand what I'm missing.

I create some pieces of geometry that I combine into a single mesh.

I duplicate the single mesh for later use.

I select the original mesh by faces and assign different materials with textures to different faces. So one mesh and multiple textures.

I create a planar mapping. I go to the Transfer maps and set the duplicated mesh as the target and the multiple materials mesh as the source.

I select the diffuse map and hit Bake. I always get a black texture. or a black texture with a little texture in the middle that does not represent all my textures combined.

I manage to make it work. My problem was that I didn't kept both objects in the same position.