glTF exporter: weight min threshold for skinning

io_scene_gltf2/__init__.py

@@ -4,7 +4,7 @@
 bl_info = {
     'name': 'glTF 2.0 format',
     'author': 'Julien Duroure, Scurest, Norbert Nopper, Urs Hanselmann, Moritz Becher, Benjamin Schmithüsen, Jim Eckerlein, and many external contributors',
-    "version": (3, 2, 24),
+    "version": (3, 2, 25),
     'blender': (3, 1, 0),
     'location': 'File > Import-Export',
     'description': 'Import-Export as glTF 2.0',

io_scene_gltf2/blender/exp/gltf2_blender_extract.py

@@ -544,6 +544,7 @@ def __get_colors(blender_mesh, color_i):
 def __get_bone_data(blender_mesh, skin, blender_vertex_groups):
 
     need_neutral_bone = False
+    min_influence = 0.0001
 
     joint_name_to_index = {joint.name: index for index, joint in enumerate(skin.joints)}
     group_to_joint = [joint_name_to_index.get(g.name) for g in blender_vertex_groups]
@@ -557,7 +558,7 @@ def __get_bone_data(blender_mesh, skin, blender_vertex_groups):
         if vertex.groups:
             for group_element in vertex.groups:
                 weight = group_element.weight
-                if weight <= 0.0:
+                if weight <= min_influence:
                     continue
                 try:
                     joint = group_to_joint[group_element.group]