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title: "Material ID Attributes"
canonical: "https://documentation.chaos.com/space/VSKETCHUP/109790637/Material%20ID%20Attributes"
format: markdown
---
This page provides information about the Material ID Attribute in V-Ray for SketchUp.  Overview Parameters 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  on the   How to Work with Materials  page. 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.