Paul Caggegi writes:
Are you anxious about using the compositor in Cycles? Do you see all these node trees and wonder "how do I follow what's going on there?" In this tutorial, I explain how to enable passes for compositing, and even show you how to group nodes so that working on a single part of a render makes it cleaner and less confusing. While this is created for the purpose of rendering a comic-style image (complete with setting up inking, coloring and effects stages), it's a good overall introductory look at how compositing works.