[Bf-extensions-cvs] [751a43f1] gltf_vtree: glTF exporter: Fix exporting without armature

[Julien Duroure]

Commit: 751a43f1ead689973a51dd7e706791fffc2bb5de
Author: Julien Duroure
Date:   Thu Feb 10 05:28:30 2022 +0100
Branches: gltf_vtree
https://developer.blender.org/rBA751a43f1ead689973a51dd7e706791fffc2bb5de

glTF exporter: Fix exporting without armature

===================================================================

M	io_scene_gltf2/blender/exp/gltf2_blender_gather_skins.py

===================================================================

diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_skins.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_skins.py
index 06c7bcff..e033b4ee 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_skins.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_skins.py
@@ -49,6 +49,11 @@ def gather_skin(armature_uuid, export_settings):
         skeleton=__gather_skeleton(blender_armature_object, export_settings)
     )
 
+    # If armature is not exported, joints will be empty.
+    # Do not construct skin in that case
+    if len(skin.joints) == 0:
+        return None
+
     export_user_extensions('gather_skin_hook', export_settings, skin, blender_armature_object)
 
     return skin