Rendered-out, the noise channels do not appear. Changing the color does affect the door model, but he noise channels do not appear.
I added a box next to the door model, and applied the same material to it (as you can see in the picture), and the noise channels render without problems.
The door model was exported as an .obj from modo into c4d.
Here is a pic;
I'm not exactly a noob at c4d, and have never seen this issue before.
Does anyone know what the issue may be ?