__init__.py

            description="Add this text at the top of the exported POV-Ray file",
            default=False)


###############################################################################
# Povray Preferences.
###############################################################################
class PovrayPreferences(AddonPreferences):
    bl_idname = __name__

    branch_feature_set_povray = EnumProperty(
                name="Feature Set",
                description="Choose between official (POV-Ray) or (UberPOV) "
                            "development branch features to write in the pov file",
                items= (('povray', 'Official POV-Ray', '','PLUGIN', 0),
                        ('uberpov', 'Unofficial UberPOV', '', 'PLUGIN', 1)),
                default='povray'
                )
    
    filepath_povray = StringProperty(
                name="Binary Location",
                description="Path to renderer executable",
                subtype='FILE_PATH',
                )
    def draw(self, context):
        layout = self.layout
        layout.prop(self, "branch_feature_set_povray")
        layout.prop(self, "filepath_povray")










        

def register():
    bpy.utils.register_module(__name__)
    bpy.types.INFO_MT_add.prepend(ui.menu_func_add)
    bpy.types.INFO_MT_file_import.append(ui.menu_func_import)
    #used for parametric objects:
    addon_utils.enable("add_mesh_extra_objects", default_set=False, persistent=True)
    
    #bpy.types.TEXTURE_PT_context_texture.prepend(TEXTURE_PT_povray_type)
    
    bpy.types.NODE_HT_header.append(ui.menu_func_nodes)
    nodeitems_utils.register_node_categories("POVRAYNODES", node_categories)    
    bpy.types.Scene.pov = PointerProperty(type=RenderPovSettingsScene)
    bpy.types.Material.pov = PointerProperty(type=RenderPovSettingsMaterial)
    bpy.types.Texture.pov = PointerProperty(type=RenderPovSettingsTexture)
    bpy.types.Object.pov = PointerProperty(type=RenderPovSettingsObject)
    bpy.types.Camera.pov = PointerProperty(type=RenderPovSettingsCamera)
    bpy.types.Text.pov = PointerProperty(type=RenderPovSettingsText)
    


def unregister():
    del bpy.types.Scene.pov
    del bpy.types.Material.pov
    del bpy.types.Texture.pov
    del bpy.types.Object.pov
    del bpy.types.Camera.pov
    del bpy.types.Text.pov
    nodeitems_utils.unregister_node_categories("POVRAYNODES")
    bpy.types.NODE_HT_header.remove(ui.menu_func_nodes)
    
    #bpy.types.TEXTURE_PT_context_texture.remove(TEXTURE_PT_povray_type)
    addon_utils.disable("add_mesh_extra_objects", default_set=False)
    bpy.types.INFO_MT_file_import.remove(ui.menu_func_import)
    bpy.types.INFO_MT_add.remove(ui.menu_func_add)
    bpy.utils.unregister_module(__name__)


if __name__ == "__main__":
    register()