glTF importer: Fix handle tangent when BEZIER interpolation

Note that tangents are not managed from gltf file yet, but now handle AUTO are correct

2 files changed, 6 insertions, 0 deletions

diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_animation_bone.py b/io_scene_gltf2/blender/imp/gltf2_blender_animation_bone.py
index c568db22..f5fbd7b9 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_animation_bone.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_animation_bone.py
@@ -34,6 +34,8 @@ class BlenderBoneAnim():
             kf.interpolation = 'CONSTANT'
         elif interpolation == "CUBICSPLINE":
             kf.interpolation = 'BEZIER'
+            kf.handle_right_type = 'AUTO'
+            kf.handle_left_type = 'AUTO'
         else:
             kf.interpolation = 'LINEAR'
 
@@ -205,6 +207,7 @@ class BlenderBoneAnim():
             # Setting interpolation
             for kf in fcurve.keyframe_points:
                 BlenderBoneAnim.set_interpolation(interpolation, kf)
+            fcurve.update() # force updating tangents (this may change when tangent will be managed)
 
     @staticmethod
     def anim(gltf, anim_idx, node_idx):
diff --git a/io_scene_gltf2/blender/imp/gltf2_blender_animation_node.py b/io_scene_gltf2/blender/imp/gltf2_blender_animation_node.py
index 0be98a06..4cb66299 100755
--- a/io_scene_gltf2/blender/imp/gltf2_blender_animation_node.py
+++ b/io_scene_gltf2/blender/imp/gltf2_blender_animation_node.py
@@ -34,6 +34,8 @@ class BlenderNodeAnim():
             kf.interpolation = 'CONSTANT'
         elif interpolation == "CUBICSPLINE":
             kf.interpolation = 'BEZIER'
+            kf.handle_right_type = 'AUTO'
+            kf.handle_left_type = 'AUTO'
         else:
             kf.interpolation = 'LINEAR'
 
@@ -128,6 +130,7 @@ class BlenderNodeAnim():
                     # Setting interpolation
                     for kf in fcurve.keyframe_points:
                         BlenderNodeAnim.set_interpolation(animation.samplers[channel.sampler].interpolation, kf)
+                    fcurve.update() # force updating tangents (this may change when tangent will be managed)
 
             elif channel.target.path == 'weights':