[Maya] Normal map breaking lighting on render

Lamuness

Hello,

I have an object that I'm trying to create a shader for, and whenever I apply the normal map to it, it breaks the lighting. The diffuse shows, but nothing else. It seems to stop accepting lighting whenever I plug it in.

When I unplug the normal map, you can see the diffuse and spec fine. When I plug in the normal by itself, the object is a flat shaded grey.

In the viewport on high quality I can see the normals just fine, but when I go to render it in Mental ray, it doesn't like it. I didn't change any of the settings at all.

Please help. Thanks.

Dataday

Try using a bump map instead. For some reason normal maps and rendering in mental ray doesnt turn out right (at least for me and the few times I tried it).

m4dcow

There is an option i try to use to get overlapped normals to work in Mental Ray, look for an option in the render settings, called "Use Maya Derivatives" and see if that helps.

_Swerve_

what file type is your normal map?