Third Party Plugins - Arnold User Guide
Installation
The recommended way to install third-party shaders and plugins is to use the ARNOLD_PLUGIN_PATH environment variable. For example, set the ARNOLD_PLUGIN_PATH environment variable like so:
ARNOLD_PLUGIN_PATH=C:\Program Files\Autodesk\Arnold\maya2020\bin
Note:
There are several third-party shader resources available for the Arnold plugins, as listed on the Arnold renderer website.
Important:
These third-party shaders, extensions, and integrations are not developed or supported by Autodesk but are provided for your convenience.