Prevent Capsule added "custom properties" from exporting into gltf extras

[Ali-RS]

Hi

When I export an object with Capsule addon to a Gltf file with "custom properties" I see there are other unrelated properties are also exported that seem to be added by this addon.

Here is an example gltf:

(Notice the CAPScn, CAPStatus, CAPProxy, and CAPObj)

    "scenes" : [
        {
            "extras" : {
                "CAPScn" : {
                    "object_list" : [
                        {
                            "object" : {
                                "name" : "Cube",
                                "type" : "Object"
                            },
                            "enable_export" : 1
                        }
                    ],
                    "selection_switch" : 0
                },
                "CAPProxy" : {
                    "disable_updates" : 0,
                    "obj_enable_export" : 1,
                    "obj_origin_point" : 0,
                    "obj_location_preset" : 1,
                    "obj_export_preset" : 2,
                    "obj_pack_script" : null,
                    "col_enable_export" : 0,
                    "col_origin_point" : 0,
                    "col_root_object" : null,
                    "col_child_export_option" : 0,
                    "col_location_preset" : 0,
                    "col_export_preset" : 0,
                    "col_pack_script" : null
                },
                "CAPStatus" : {
                    "target_name" : "",
                    "target_status" : 0,
                    "target_input" : [],
                    "target_output" : []
                }
            },
            "name" : "Scene",
            "nodes" : [
                0
            ]
        }
    ],
"nodes" : [
        {
            "extras" : {
                "prop" : "test",
                "CAPObj" : {
                    "pack_script" : {},
                    "enable_edit" : 1,
                    "enable_export" : 1,
                    "in_export_list" : 1,
                    "export_preset" : 2,
                    "location_preset" : 1
                }
            },
            "mesh" : 0,
            "name" : "Cube"
        }
    ],

How can I prevent Capsule properties (CAPScn, CAPStatus, CAPProxy, CAPObj,...) from exporting?

Regards

[Takanu]

Thanks for the report. This might be possible in the future but it'd require making and deleting duplicates of export targets which has it's own share of potential problems. The data you're seeing is required for Capsule to function - it can't be moved anywhere else.

[Ali-RS]

I see, thanks.

For now, I am going to use the trick provided in KhronosGroup/glTF-Blender-IO#1796 by filtering out those properties from exporting into gltf.

import bpy

EXCLUDED_PROPERTIES = ['CAPScn', 'CAPStatus', 'CAPProxy', 'CAPObj']

from io_scene_gltf2.blender.com.gltf2_blender_extras import BLACK_LIST
for excluded_prop in EXCLUDED_PROPERTIES:
    BLACK_LIST.append(excluded_prop)