Freestyle > Importing and Exporting Shapes > About Importing and Exporting .obj Files
  
About Importing and Exporting .obj Files
The Wavefront or .obj mesh files are the object files that you can import or export in Freestyle.
While importing the file in Freestyle, you can change the facet unit or flip the direction of the face normals from the Import Options dialog box. The interactive Import Options dialog box allows you to preview the effects of your selection in the Graphics window. The existing shape names in the imported .obj file are retained in the Freestyle Tree. If the shape names are not available, then the names are generated in a serial order. You cannot manipulate the shapes while previewing the imported shape.
The Preview of the Imported Shapes
The following image shows how the preview changes when you flip the direction of the face normals. Note that the arrows are pointed in the direction of normals.