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glTF importer: Fix some antipodal issue in bone rotation

This commit is contained in:
Julien Duroure 2019-02-01 19:41:26 +01:00
parent 787a1b8f1e
commit 22214fda57
1 changed files with 11 additions and 3 deletions
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14
io_scene_gltf2/blender/imp/gltf2_blender_animation_bone.py
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@ -100,12 +100,20 @@ class BlenderBoneAnim():
if animation.samplers[channel.sampler].interpolation == "CUBICSPLINE":
# TODO manage tangent?
quat_keyframes = (
quat_keyframes = [
quaternion_gltf_to_blender(values[idx * 3 + 1])
for idx in range(0, len(keys))
)
]
else:
quat_keyframes = (quaternion_gltf_to_blender(vals) for vals in values)
quat_keyframes = [quaternion_gltf_to_blender(vals) for vals in values]
# Manage antipodal quaternions
# (but is not suffisant, we also convert quaternion --> euler --> quaternion)
for i in range(1, len(quat_keyframes)):
if quat_keyframes[i].dot(quat_keyframes[i-1]) < 0:
quat_keyframes[i] = -quat_keyframes[i]
if not node.parent:
final_rots = [
bind_rotation.inverted() @ quat_keyframe