After using Brazil R/S for some time I decided to get with CGIs architectural adopted format VRay. Honestly, I feel comfortable with the renderer at this point. What I am looking for is more information on rendering passes with VRay. I didn't really have a lot of experience in architectural visualization or composting so I purchased Tim Jones's DVD Environment Creation for Production. Working through his online tutorial http://www.seraph3d.com/CompositingTutorialA02.htm he gives examples of rendering passes with the scanline renderer.
My issues is that I can't get my passes to look correct with VRay. After spending two frustrating weeks with this I am at my wits end. So my question is is there a more definitive guide on rendering passes with VRay?
I did find a nice script by Marc Lorenz to quickly render ambient occlusion in VRay.
http://plugins.angstraum.at/vrayao/index.htm