---
title: "V-Ray Object ID"
canonical: "https://documentation.chaos.com/space/VRAYHOUDINI/113281576/V-Ray%20Object%20ID"
format: markdown
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This page provides information on the V-Ray Object ID Render Channel which isolates individual objects with different colors based on IDs for compositing purposes.


## **Overview**

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## **Parameter**

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## **Common Uses** 

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The V-Ray Object ID Render Element is useful for isolating geometry in a scene based on the Object ID. This means that items can be isolated by use of a matte, created from the solid colors within the Object ID pass. This method is used to isolate and color correct the **ottoman** in the example. The **ottoman** has an Object ID of** 1**, the **floor** has an Object ID of **4** and the **walls** have an Object ID of **2**. See how the render looks before and after compositing.



## **Notes**

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- The name of the Object ID render element must consist of the name of the Object ID itself, a dot and then any other string to be properly read in Nuke. For example, VRayObjectID.example. Do not include numbers in the name.