Atoms Crowd currently support three renderers in Maya: Arnold, V-Ray and Renderman.
Once your materials are ready in your Maya scene you can export them.
For V-Ray, you should use the vrmat material converter: Create > V-Ray > Open V-Ray VRmat Converter.
For Arnold and Renderman, you can access the exporters using the shelf buttons or via the menu: Atoms > Exporters > Arnold Material Exporter, Renderman Material Exporter
Just select your material node and a file path.
The exporter will export the given material into a rib (Renderman) or ass (Arnold) file, depending on which exporter you are using.
Users need to make sure all material nodes going into the same render are named differently. This is because of a renderman and arnold limitation.
