---
title: "IPR Tab"
canonical: "https://documentation.chaos.com/space/VRAYHOUDINI/113280781/IPR%20Tab"
format: markdown
---
This page provides details on the settings found on the IPR tab of the V-Ray Renderer parameters.


## **Overview**

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The IPR tab in the Render Settings window allows you to control the settings of the V-Ray IPR Renderer.

To use the GPU engine, a video card that supports the following is required:

- CUDA 2.0 or higher.
- The CUDA engine for GPU works on NVIDIA cards with the Maxwell, Pascal, Volta, Turing, or Ampere architectures.

> ⚠️ We have received reports of geometry occasionally disappearing during IPR. After further investigation, it appears a specific [environment variable](https://docs-chaos.atlassian.net/wiki/spaces/VNS/pages/115605616) might be causing this unexpected behavior. If you experience IPR issues related to geometry suddenly disappearing during rendering, please try setting the "HOUDINI_ACCESS_METHOD" environment variable to "3".


## **Shading**

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## **Rendering**

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## **Performance**

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## **Options**

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