This page provides information about the Material ID Attributes in V-Ray for Rhino.
Overview
An Add Attribute button is provided for some V-Ray materials. Select additional attributes to add up to the appearance of the material. For more information see the Add Attribute section on the How to Work with Materials page.
Parameters
ID Number – Isolates objects as an R/G/B mask in the MultiMatte Material render elements.
ID Color – Specifies a color to represent this material in the Material ID VFB render element.
Each material is assigned with an automatically generated ID Color.
