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