I'm trying to render out multiple lighting passes to composite my image, and I'm really struggling to figure out how to do it. Basically I want the following passes of my object: -ambient -specular -depth -reflection -shadow -diffuse I've tried Render Layers but they don't seem to work with mental ray - the image is the same for each layer. From what I can see, I need to do something with Framebuffers but can't figure out what.. I'm using Maya 2010. Thanks!