I hope this is probably the best place to ask, at the moment struggling with compositing passes together properly, matching the original RGB.
This as close as Ive got it so far, with the matte/shadow removed before rendering.
Im using HDR lighting, and reflections which seems like its making it even harder.
alsoI had a look at this (http://www.spot3d.com/vray/help/150SP1/examples_renderelements.htm) link and had a a quick go, it seems more suited to node compositors and Im not sure if im doing it right, by adding each comp together (http://yfrog.com/63renderelementsj)
if anyone has any answers or any help at all, would be hugely appreciated, pretty limited compositing passes knowledge to say the least.