Layered shaders (layered components) that include the SSS shader without lightmapping. They have their own framebuffer mechanism with passes for added flexibility in OEM packages.
New Maya Rendering UI Testing!
After some careful thought and a lot of tedious work by developers Brenton and Corey (mental core), you can find a Maya Render Settings UI for testing. Barton Gawboy is project management. The purpose of this UI is to provide a more official/intended workflow for mental ray. This also means makers of UIs for other packages can use this as a template for features on modern mental ray (3.10 and future).
This UI is in an early phase and should not be used for production. Currently the Quality settings have been re-worked to provide a simpler interface and a modern workflow for using mental ray in Maya. Over time we will be improving on this (light and passes tabs to be re-worked) and adding documentation. We recommend Maya 2013 SP1.