I found this weird error when I was using a normal map in
Maya.
If you attach more than one bump2d node to a single file node
and use these bump2d nodes as a normal map, whether set to Tangent Space
Normals or Object Space Normals, this will cause a problem.
The object's color doesn't show up and the surface normals
get messed up.
Here I have a simple shader connection. A blinn shader with one normal map input.
The render looks like this.
I create a new shader
and used the same file node as a normal map through a new bump2d node and
assign this new shader to the right plane.
