glTF exporter: option to export only deformation bones

1 files changed, 7 insertions, 2 deletions

diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channel_target.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channel_target.py
index 04028d20..fa0f9976 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channel_target.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_animation_channel_target.py
@@ -19,7 +19,7 @@ from io_scene_gltf2.io.com import gltf2_io
 from io_scene_gltf2.blender.exp.gltf2_blender_gather_cache import cached
 from io_scene_gltf2.blender.exp import gltf2_blender_gather_nodes
 from io_scene_gltf2.blender.exp import gltf2_blender_gather_joints
-
+from io_scene_gltf2.blender.exp import gltf2_blender_gather_skins
 
 @cached
 def gather_animation_channel_target(channels: typing.Tuple[bpy.types.FCurve],
@@ -66,7 +66,12 @@ def __gather_node(channels: typing.Tuple[bpy.types.FCurve],
             blender_bone = blender_object.path_resolve(channels[0].data_path.rsplit('.', 1)[0])
 
         if isinstance(blender_bone, bpy.types.PoseBone):
-            return gltf2_blender_gather_joints.gather_joint(blender_bone, export_settings)
+            if export_settings["gltf_def_bones"] is False:
+                return gltf2_blender_gather_joints.gather_joint(blender_bone, export_settings)
+            else:
+                bones, _, _ = gltf2_blender_gather_skins.get_bone_tree(None, blender_object)
+                if blender_bone.name in [b.name for b in bones]:
+                    return gltf2_blender_gather_joints.gather_joint(blender_bone, export_settings)
 
     return gltf2_blender_gather_nodes.gather_node(blender_object, None, export_settings)