So, you’ve downloaded some custom shaders and you want to get them into Maya? Here’s how:
- Set ARNOLD_PLUGIN_PATH to point to the location of the shader DLL/SO and MTD files.
- Set MTOA_TEMPLATES_PATH to point to the location of the shader template .PY files.
That’s it. MtoA uses those environment variables to find the shaders (the .DLL or .SO files), the shader metadata files (.MTD), and the shader templates (.PY).
A metadata file tells Maya how to handle the shader (for example, where to show it in the Assign New Materials window).
A shader template defines the UI for the shader in the Attribute Editor.