---
title: "Global Illumination"
url: "https://help.maxon.net/r3d/houdini/en-us/Content/html/Global%2BIllumination.html"
section_path: "Global Illumination"
---

# Global Illumination

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# Global Illumination

## In this section

- [GI Engines](https://help.maxon.net/r3d/houdini/en-us/Content/html/GI%2BEngines.html.md)
- [The Brute-Force GI Engine](https://help.maxon.net/r3d/houdini/en-us/Content/html/The%2BBrute-Force%2BGI%2BEngine.html.md)
- [The Irradiance Point Cloud GI Engine](https://help.maxon.net/r3d/houdini/en-us/Content/html/The%2BIrradiance%2BPoint%2BCloud%2BGI%2BEngine.html.md)
- [The Irradiance Cache GI Engine](https://help.maxon.net/r3d/houdini/en-us/Content/html/The%2BIrradiance%2BCache%2BGI%2BEngine.html.md)
- [Photon Mapping for Caustics](https://help.maxon.net/r3d/houdini/en-us/Content/html/Photon%2BMapping%2Bfor%2BCaustics.html.md)