Surface
Enable this option if you want to export surfaces.
This option is helpful for improving the look of textured surfaces. The object polygons will be subdivided upon export.
The number of subdivisions are defined by this value.
If enabled, objects' backfaces will not be exported.
Using this option reduces gaps when exporting vectors between polygons.
Shading defines how the polygons will be exported.
Object uses the color that is defined in the Attribute Manager's Basic tab's Color setting.
Uniform uses the color of the first object .
The Facetted uses the color at the center of each polygon.