WIP: Animation: operators to update the pose library #104673

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Sybren A. Stüvel wants to merge 10 commits from dr.sybren/blender-addons:pr/poselib-replace-pose into main

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2 changed files with 48 additions and 38 deletions
Showing only changes of commit 19a210568f - Show all commits

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@ -90,15 +90,16 @@ def pose_library_list_item_context_menu(self: UIList, context: Context) -> None:
with operator_context(layout, 'INVOKE_DEFAULT'):
layout.operator("poselib.blend_pose_asset", text="Blend Pose")
layout.operator("poselib.replace_pose_asset", text="Replace Pose")
layout.operator("poselib.update_pose_asset", text="Update Pose")
layout.separator()
props = layout.operator("poselib.pose_asset_select_bones", text="Select Pose Bones")
props.select = True
props = layout.operator("poselib.pose_asset_select_bones", text="Deselect Pose Bones")
props.select = False
layout.separator()
layout.operator("poselib.replace_pose_asset", text="Replace Pose Asset")
layout.operator("poselib.update_pose_asset", text="Update Pose Asset")
if not is_pose_asset_view():
layout.separator()
layout.operator("asset.assign_action")

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@ -248,7 +248,7 @@ class POSELIB_OT_update_pose_asset(Operator):
try:
original_pose: Action = context.id
was_updated = self._update_pose_asset(original_pose, new_pose, storage_frame_nr)
was_updated = self._update_pose_asset(original_pose, new_pose)
finally:
# Clean up by removing the temporary pose Action.
bpy.data.actions.remove(new_pose)
@ -256,12 +256,11 @@ class POSELIB_OT_update_pose_asset(Operator):
return {'FINISHED'} if was_updated else {'CANCELLED'}
def _update_pose_asset(self,
original_pose: Action,
new_pose: Action,
storage_frame_nr: float,) -> bool:
"""Perform the pose update.
pose_to_update: Action,
update_source: Action) -> bool:
"""Copy keys from `update_source` to `pose_to_update`.
:return: True if the original pose was altered, False otherwise.
:return: True if `pose_to_update` was altered, False otherwise.
"""
# Create lookup table for FCurves. There's also Action.fcurves.find() but
@ -269,52 +268,31 @@ class POSELIB_OT_update_pose_asset(Operator):
# each lookup.
original_fcurve_lookup: dict[tuple[str, int], FCurve] = {
(fcu.data_path, fcu.array_index): fcu
for fcu in original_pose.fcurves
for fcu in pose_to_update.fcurves
}
num_fcurves_added = 0
num_fcurves_edited = 0
for fcu in new_pose.fcurves:
fcu_value = fcu.keyframe_points[0].co.y
for fcu in update_source.fcurves:
try:
orig_fcu = original_fcurve_lookup[fcu.data_path, fcu.array_index]
except KeyError:
orig_fcu = None
if orig_fcu is None:
# No such FCurve, so create a new one.
group_name = getattr(fcu.group, 'name', '')
new_fcu = original_pose.fcurves.new(
fcu.data_path,
index=fcu.array_index,
action_group=group_name,
)
new_fcu.keyframe_points.insert(storage_frame_nr, value=fcu_value)
new_fcu.update()
self._create_new_fcurve(pose_to_update, fcu)
num_fcurves_added += 1
continue
# Update the exsting FCurve. This assumes that it is a valid
# pose asset, i.e. that it has a single key.
kp = orig_fcu.keyframe_points[0]
old_value = kp.co.y
was_updated = self._update_existing_fcurve(pose_to_update, orig_fcu, fcu)
if was_updated:
num_fcurves_edited += 1
# Don't bother updating the FCurve if the value was unchanged.
if abs(old_value - fcu_value) < 0.0001:
continue
# Use co_ui to move the handles along with the value.
kp.co_ui.y = fcu_value
orig_fcu.update()
num_fcurves_edited += 1
if num_fcurves_added == 0 and num_fcurves_edited == 0:
if not any((num_fcurves_added, num_fcurves_edited)):
self.report({'WARNING'}, "Pose did not change, so the asset was not updated")
return False
original_pose.asset_generate_preview()
pose_to_update.asset_generate_preview()
# Present the results.
msg_parts = []
@ -335,6 +313,37 @@ class POSELIB_OT_update_pose_asset(Operator):
return original_pose.fcurves[0].keyframe_points[0].co.x
return context.scene.frame_current
@staticmethod
def _create_new_fcurve(action: Action, fcu_to_copy: FCurve) -> None:
group_name = getattr(fcu_to_copy.group, 'name', '')
new_fcu = action.fcurves.new(
fcu_to_copy.data_path,
index=fcu_to_copy.array_index,
action_group=group_name,
)
keyframe_co = fcu_to_copy.keyframe_points[0].co
new_fcu.keyframe_points.insert(keyframe_co.x, value=keyframe_co.y)
new_fcu.update()
@staticmethod
def _update_existing_fcurve(action: Action, fcu_existing: FCurve, fcu_to_read: FCurve) -> bool:
# Update the exsting FCurve. This assumes that it is a valid
# pose asset, i.e. that the FCurve has a single key.
dr.sybren marked this conversation as resolved
Review

Unimportant nit: it doesn't seem like the old_value temporary is necessary.

(fcu_value, by contrast, I think aids readability, since it's short-handing something that's rather long to read.)

Not a big deal either way, though.

Unimportant nit: it doesn't seem like the `old_value` temporary is necessary. (`fcu_value`, by contrast, I think aids readability, since it's short-handing something that's rather long to read.) Not a big deal either way, though.

It's indeed not really necessary, but to me it makes the if old_value == fcu_value: read nicer. That can be resolved by renaming kp to keyframe and it overall being less cryptic.

It's indeed not really necessary, but to me it makes the `if old_value == fcu_value:` read nicer. That can be resolved by renaming `kp` to `keyframe` and it overall being less cryptic.
kp = fcu_existing.keyframe_points[0]
old_value = kp.co.y
# Don't bother updating the FCurve if the value was unchanged.
dr.sybren marked this conversation as resolved
Review

Do we expect there to be floating point error involved here? I wouldn't think so, but I could very well be missing something.

But if not, I think it makes more sense to just do a straight == comparison, rather than having an arbitrary epsilon.

Do we expect there to be floating point error involved here? I wouldn't think so, but I could very well be missing something. But if not, I think it makes more sense to just do a straight `==` comparison, rather than having an arbitrary epsilon.
fcu_value = fcu_to_read.keyframe_points[0].co.y
if abs(old_value - fcu_value) < 0.0001:
return False
# Use co_ui to move the handles along with the value.
kp.co_ui.y = fcu_value
fcu_existing.update()
return True
class POSELIB_OT_restore_previous_action(Operator):
bl_idname = "poselib.restore_previous_action"