---
title: "Irradiance Map Settings"
canonical: "https://documentation.chaos.com/space/VRHINO/116130465/Irradiance%20Map%20Settings"
format: markdown
---
This page provides information about the Irradiance Map GI engine.

> ℹ️ This is a legacy option that will be removed in the future. Use the other Global Illumination options instead.


## **Overview**

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The Irradiance Map engine can be used to calculate global illumination. It works by creating a map of points in 3D space, along with the computed indirect illumination at each point. This rollout allows the user to control and fine-tune various aspects of the irradiance map. 

This rollout is available only if Irradiance Map has been chosen as the **Primary Rays** GI engine in the [Global Illumination Settings](https://docs-chaos.atlassian.net/wiki/spaces/VRHINO/pages/116130551).

> ⚠️ Irradiance Map GI engine is not supported by V-Ray GPU.

V-Ray includes an [Irradiance Map Viewer](https://docs-chaos.atlassian.net/wiki/spaces/VRHINO/pages/116131042) for viewing and editing irradiance map files.



## **UI Path**

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||V-Ray Asset Editor|| >**  Settings **>** Global Illumination **>** Irradiance Map**

(When Irradiance Map is set as the Primary Rays engine.)



## **Parameters**

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### **Disk Caching**

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