Bake of animation keyframes are fail when object is quaternion define but bones is Eular define #88359

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dreamertooth · 2021-05-17T22:54:40+02:00

dreamertooth commented

2021-05-17 22:54:40 +02:00

System Information
Operating system: Win10 64 Bit
Graphics card: 2x RTX 3090 (no SLI)

Blender Version
Broken: version: 2.92.0, branch: master, commit date: 2021-02-24 16:25, hash: 02948a2cab, type: Release
Worked: no

Exact steps for others to reproduce the error
When have armature with bone rotate define in Euler, but object is define in Quaternion, baking animate in mode of POSE will cause fail with stack trace this:

RuntimeError: Error: Python: Traceback (most recent call last):
  File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\startup\bl_operators\anim.py", line 290, in execute
    do_clean=self.clean_curves,
  File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\modules\bpy_extras\anim_utils.py", line 80, in bake_action_objects
    return iter.send(None)
  File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\modules\bpy_extras\anim_utils.py", line 111, in bake_action_objects_iter
    yield tuple(iter.send(None) for iter in iter_all)
  File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\modules\bpy_extras\anim_utils.py", line 111, in <genexpr>
    yield tuple(iter.send(None) for iter in iter_all)
  File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\modules\bpy_extras\anim_utils.py", line 299, in bake_action_iter
    euler = pbone.matrix_basis.to_euler(obj.rotation_mode, euler_prev)
ValueError: Matrix.to_euler(): invalid euler order 'QUATERNION'

this do because line 299 of bake_action_iter euler = pbone.matrix_basis.to_euler(obj.rotation_mode, euler_prev) is copy of line 346 of bake_action_iter , but 'obj' forget change to 'pbone'. Line 299 is execute because mode is 'POSE', so matrix basis should BONE use for determine rotation mode. Instead, is use object contain bone which have matrix order that CAN (but no SHOULD) have the different to actual bone.

sorry bad english

#88359.blend

**System Information** Operating system: Win10 64 Bit Graphics card: 2x RTX 3090 (**no** SLI) **Blender Version** Broken: version: 2.92.0, branch: master, commit date: 2021-02-24 16:25, hash: 02948a2cab44, type: Release Worked: no **Exact steps for others to reproduce the error** When have armature with *bone* rotate define in Euler, but *object* is define in Quaternion, baking animate in mode of POSE will cause fail with stack trace this: ``` RuntimeError: Error: Python: Traceback (most recent call last): File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\startup\bl_operators\anim.py", line 290, in execute do_clean=self.clean_curves, File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\modules\bpy_extras\anim_utils.py", line 80, in bake_action_objects return iter.send(None) File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\modules\bpy_extras\anim_utils.py", line 111, in bake_action_objects_iter yield tuple(iter.send(None) for iter in iter_all) File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\modules\bpy_extras\anim_utils.py", line 111, in <genexpr> yield tuple(iter.send(None) for iter in iter_all) File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\modules\bpy_extras\anim_utils.py", line 299, in bake_action_iter euler = pbone.matrix_basis.to_euler(obj.rotation_mode, euler_prev) ValueError: Matrix.to_euler(): invalid euler order 'QUATERNION' ``` this do because line 299 of bake_action_iter `euler = pbone.matrix_basis.to_euler(obj.rotation_mode, euler_prev)` is copy of line 346 of bake_action_iter , but 'obj' forget change to 'pbone'. Line 299 is execute because mode is 'POSE', so matrix basis should BONE use for determine rotation mode. Instead, is use *object contain bone* which have matrix order that CAN (but no SHOULD) have the different to actual bone. sorry bad english [#88359.blend](https://archive.blender.org/developer/F10122123/T88359.blend)

dreamertooth commented

2021-05-17 22:54:40 +02:00

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