Smooth Mesh

The Smooth Mesh option lets you export source mesh with Smooth mesh attributes. To export the source mesh, disable the Smooth mesh Preview attribute in Maya, and then export.

If you activate the Smooth Mesh option, the mesh is not tessellated, and the source is exported with Smooth Mesh data. If you disable the Smooth Mesh option, the mesh is tessellated and exported without Smooth Mesh data.

NoteIf you export a Smooth Mesh Preview from Maya with the FBX Exporter Smooth Mesh option disabled, it will not affect the mesh in the scene. Instead your result is a tessellated mesh in the file, but with the original source mesh unaffected/unchanged in the Maya scene.