---
title: "Irradiance Map Viewer"
canonical: "https://documentation.chaos.com/space/VRAYHOUDINI/113280428/Irradiance%20Map%20Viewer"
format: markdown
---
The irradiance map viewer can be used to view, merge and save irradiance map files created by V-Ray.   Overview The Irradiance Map viewer tool allows you to navigate around a 3D projected version of a scene to view were GI samples were taken during the rendering process. Note: The viewer is a separate program and does not require the V-Ray host application (Houdini, Maya, 3ds Max, etc.) to be running.   Installation Currently, on all operational systems the  imapviewer.exe  is located in V-Ray's folder (where the V-Ray files are extracted) >  appsdk  >  bin .