vMaterials using MDL!
While mental ray 3.13 has limited support for MDL, 3.14 promises complete support. In the meantime you can register and download these and give them a shot in mental ray 3.13 for Maya 2016 or most anything supporting MDL materials. Keep in mind the UI for populating attributes isn’t complete for this release of Maya and may take some work to try. You can also see how the materials are written with a text editor.
The download will install the vMaterial Hub and Library. You can find them on Windows here: C:\Users\YourUserName\Documents\mdl\nvidia\vMaterials
You can register here for the download links: vMaterials Download