Ambient Occlusion
Throughout the years I have always been told to render an AO pas and multiply it over the beauty and fuss with it to make it “correct.” This method has always looked incorrect to me and always makes things look dirty. But I was always the student (and will always be in a sense) so I never thought to challenge it, and thought I was wrong. Well ladies and gentlemen, I am about to link you to a post on Master Zap’s blog that will rock your world and will change how you do an AO pass (hopefully).
Here is the image:
and here is the article
http://mentalraytips.blogspot.com/2008/11/joy-of-little-ambience.html