Autodesk Navisworks 2014 supports two graphics systems: Presenter Rendering and Autodesk Rendering.
Autodesk Rendering system is used by default, except when working with legacy 3D models that have Presenter materials. Presenter materials are only available when using Presenter Rendering system, and Autodesk materials (also referred to as consistent materials) are only available when using Autodesk Rendering system. Real-time navigation is supported by both graphics systems.
When you select a rendering tool on the ribbon (Home tab 
Tools panel), Autodesk Navisworks opens the corresponding docking window, and turns on the appropriate graphics system. These changes will be saved with the currently open file.
You can also use Options Editor to specify which graphics system to use with your files.
Supported Drivers
You can see a list of all supported drivers in the Options Editor (Interface Display Drivers). By default, all driver options are selected.