I am trying to do more multi-pass rendering and compositing with my projects. At the moment, I am working on Jeremy Birn’s Lighting Challenge #18 over at Cgsociety. I am having a problem combining a few different passes together. See the attached screenshot. The problem is that the reflection pass really messes up the image when I try to add it to the passes that I have combined before. What am I doing wrong?
It’s hard to tell if we can’t see your render, can you post it?
Is there a reason you have a render layer for reflections and one for shadows? You could have just one, with reflections and shadows passes.