As of today, those with AutoCAD Civil 3D on subscription will be able to download "The Civil Visualization Extension" (previously know as Dynamite VSP).
This extension provides a process to take Civil 3D surfaces and corridors and easily incorporate them in 3ds Max Design in order to create compelling visualizations.
There are two plug-ins in this extension. "The Civil 3D Exporter" allow us to export the data we select, and the "3ds Max Design Plug-in" does the magic. These plug-in work for the 2010 and 2011 versions of these applications.
If you do not own 3ds Max Design, a 30 day trial can be download from the Subscription Center as well.
Be Better! ...visualize things well.