+ bpy.types.Scene.scene_type = bpy.props.EnumProperty(name="Scene type", description="Type of scene to use for exporting", default="SIMPLE",
+ items=(("SIMPLE", "Simple", "Objects are rendered in no specific order"),
+ ("ORDERED", "Ordered", "Objects are rendered in order by their name"),
+ ("ZSORTED", "Z-sorted", "Objects are rendered in order by their distance from the camera")))
+