In this video I'll go over the workflow for applying lens distortion to your rendered footage. It's not really a tutorial on the Lens Distortion node, it's about the workflow of what to do to your images and when.
In addition to the standard compliment of Vray Render Passes that are available in Maya there are also a number of hidden passes that can be unlocked with a few extra clicks. These passes are extremely useful for Nuke artists for things like Relighting, Particles, and Atmosphere creation. In this tutorial I will walk you through the steps necessary to create the following Passes in Vray for Maya.
World Space Normals
Normals Object XYZ