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Fix T71924: Baking quaternion keyframes gives discontinuous values

This commit is contained in:
Campbell Barton 2019-11-27 01:57:14 +11:00
parent 2dac0c9179
commit 9467c0dcf9
Notes: blender-bot 2023-02-14 00:06:52 +01:00 
Referenced by issue #71924, Baking euler rotation to quaternions error
1 changed files with 21 additions and 2 deletions
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23
release/scripts/modules/bpy_extras/anim_utils.py
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@ -268,8 +268,9 @@ def bake_action_iter(
while pbone.constraints:
pbone.constraints.remove(pbone.constraints[0])
# create compatible eulers
# Create compatible eulers, quats.
euler_prev = None
quat_prev = None
for (f, matrix, bbones) in pose_info:
pbone.matrix_basis = matrix[name].copy()
@ -278,6 +279,14 @@ def bake_action_iter(
rotation_mode = pbone.rotation_mode
if rotation_mode == 'QUATERNION':
if quat_prev is not None:
quat = pbone.rotation_quaternion.copy()
quat.make_compatible(quat_prev)
pbone.rotation_quaternion = quat
quat_prev = quat
del quat
else:
quat_prev = pbone.rotation_quaternion.copy()
pbone.keyframe_insert("rotation_quaternion", index=-1, frame=f, group=name, options=options)
elif rotation_mode == 'AXIS_ANGLE':
pbone.keyframe_insert("rotation_axis_angle", index=-1, frame=f, group=name, options=options)
@ -308,8 +317,9 @@ def bake_action_iter(
while obj.constraints:
obj.constraints.remove(obj.constraints[0])
# create compatible eulers
# Create compatible eulers, quats.
euler_prev = None
quat_prev = None
for (f, matrix) in obj_info:
name = "Action Bake" # XXX: placeholder
@ -319,6 +329,15 @@ def bake_action_iter(
rotation_mode = obj.rotation_mode
if rotation_mode == 'QUATERNION':
if quat_prev is not None:
quat = obj.rotation_quaternion.copy()
quat.make_compatible(quat_prev)
obj.rotation_quaternion = quat
quat_prev = quat
del quat
print ("quat_prev", quat_prev)
else:
quat_prev = obj.rotation_quaternion.copy()
obj.keyframe_insert("rotation_quaternion", index=-1, frame=f, group=name, options=options)
elif rotation_mode == 'AXIS_ANGLE':
obj.keyframe_insert("rotation_axis_angle", index=-1, frame=f, group=name, options=options)