Import > Include > Geometry > 
Smoothing Groups
 
 
 

Activating this option stores Smoothing Group information in your Maya scene. This option lets you preserve Smoothing Group information for future export operations. It has no effect on your visual result in Maya.

The plug-in exports Smoothing Groups only if you use the Smoothing Groups option in the FBX Importer and Exporter. The plug-in stores this information temporarily as blind data in your Maya scene because Maya does not directly support Smoothing Groups.

NoteThe most common use for the Smoothing Groups option is to import geometry data from 3ds Max and so that Smoothing Group information is preserved for export at a later time. Preserving the Smoothing Groups avoids the need to re-evaluate the Smoothing Groups when you reimport the file in 3ds Max (or other applications that support Smoothing Groups).