---
title: "VRayOSLMtl"
canonical: "https://documentation.chaos.com/space/VMAX/113575780/VRayOSLMtl"
format: markdown
---
This page provides information on the OSL Material.

 

## **Overview**

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## **Coordinates and Noise**

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## **General**

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## **Shader Parameters**

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## **Compiler Diagnostics**

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## **Quick Shader**

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## **OSL Include Paths**

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## **Notes**

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- The VRayOSLMtl material automatically compiles [OSL](https://github.com/imageworks/OpenShadingLanguage/) shaders to object code (OSO format) upon shader selection. No following compilations occur (even at render events). If the loaded [OSL](https://github.com/imageworks/OpenShadingLanguage/) shader is modified, use the context menu options **Reset** or **Reload** of the **Shader file **button for your changes to take effect.
- An [OSL](https://github.com/imageworks/OpenShadingLanguage/) compiler that translates **.osl* files to **.oso* files can be found in the tools subdirectory of V-Ray's root installation folder.

## **References**

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- [OSL home page at SPI](http://opensource.imageworks.com/?p=osl) - Open Shading Language home page at Sony Pictures Imageworks
- [OSL Google Code page](https://code.google.com/p/openshadinglanguage/) - Google Code project page for Open Shading Language
- [OSL GitHub page](https://github.com/imageworks/OpenShadingLanguage/) - GitHub project page for Open Shading Language