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Move copyright text to SPDX-FileCopyrightText or set to the Blender Foundation so "make check_licenses" now runs without warnings.
639 lines
22 KiB
Python
639 lines
22 KiB
Python
# SPDX-FileCopyrightText: 2021-2023 Blender Foundation
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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"""
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Copy Global Transform
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Simple add-on for copying world-space transforms.
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It's called "global" to avoid confusion with the Blender World data-block.
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"""
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bl_info = {
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"name": "Copy Global Transform",
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"author": "Sybren A. Stüvel",
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"version": (2, 1),
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"blender": (3, 5, 0),
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"location": "N-panel in the 3D Viewport",
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"category": "Animation",
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"support": 'OFFICIAL',
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"doc_url": "{BLENDER_MANUAL_URL}/addons/animation/copy_global_transform.html",
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"tracker_url": "https://projects.blender.org/blender/blender-addons/issues",
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}
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import ast
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from typing import Iterable, Optional, Union, Any
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import bpy
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from bpy.types import Context, Object, Operator, Panel, PoseBone, UILayout
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from mathutils import Matrix
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_axis_enum_items = [
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("x", "X", "", 1),
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("y", "Y", "", 2),
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("z", "Z", "", 3),
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]
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class AutoKeying:
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"""Auto-keying support.
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Based on Rigify code by Alexander Gavrilov.
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"""
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@classmethod
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def keying_options(cls, context: Context) -> set[str]:
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"""Retrieve the general keyframing options from user preferences."""
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prefs = context.preferences
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ts = context.scene.tool_settings
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options = set()
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if prefs.edit.use_visual_keying:
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options.add('INSERTKEY_VISUAL')
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if prefs.edit.use_keyframe_insert_needed:
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options.add('INSERTKEY_NEEDED')
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if prefs.edit.use_insertkey_xyz_to_rgb:
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options.add('INSERTKEY_XYZ_TO_RGB')
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if ts.use_keyframe_cycle_aware:
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options.add('INSERTKEY_CYCLE_AWARE')
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return options
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@classmethod
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def autokeying_options(cls, context: Context) -> Optional[set[str]]:
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"""Retrieve the Auto Keyframe options, or None if disabled."""
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ts = context.scene.tool_settings
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if not ts.use_keyframe_insert_auto:
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return None
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if ts.use_keyframe_insert_keyingset:
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# No support for keying sets (yet).
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return None
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prefs = context.preferences
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options = cls.keying_options(context)
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if prefs.edit.use_keyframe_insert_available:
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options.add('INSERTKEY_AVAILABLE')
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if ts.auto_keying_mode == 'REPLACE_KEYS':
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options.add('INSERTKEY_REPLACE')
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return options
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@staticmethod
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def get_4d_rotlock(bone: PoseBone) -> Iterable[bool]:
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"Retrieve the lock status for 4D rotation."
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if bone.lock_rotations_4d:
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return [bone.lock_rotation_w, *bone.lock_rotation]
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else:
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return [all(bone.lock_rotation)] * 4
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@staticmethod
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def keyframe_channels(
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target: Union[Object, PoseBone],
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options: set[str],
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data_path: str,
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group: str,
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locks: Iterable[bool],
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) -> None:
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if all(locks):
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return
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if not any(locks):
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target.keyframe_insert(data_path, group=group, options=options)
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return
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for index, lock in enumerate(locks):
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if lock:
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continue
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target.keyframe_insert(data_path, index=index, group=group, options=options)
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@classmethod
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def key_transformation(
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cls,
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target: Union[Object, PoseBone],
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options: set[str],
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) -> None:
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"""Keyframe transformation properties, avoiding keying locked channels."""
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is_bone = isinstance(target, PoseBone)
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if is_bone:
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group = target.name
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else:
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group = "Object Transforms"
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def keyframe(data_path: str, locks: Iterable[bool]) -> None:
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cls.keyframe_channels(target, options, data_path, group, locks)
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if not (is_bone and target.bone.use_connect):
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keyframe("location", target.lock_location)
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if target.rotation_mode == 'QUATERNION':
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keyframe("rotation_quaternion", cls.get_4d_rotlock(target))
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elif target.rotation_mode == 'AXIS_ANGLE':
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keyframe("rotation_axis_angle", cls.get_4d_rotlock(target))
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else:
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keyframe("rotation_euler", target.lock_rotation)
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keyframe("scale", target.lock_scale)
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@classmethod
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def autokey_transformation(cls, context: Context, target: Union[Object, PoseBone]) -> None:
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"""Auto-key transformation properties."""
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options = cls.autokeying_options(context)
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if options is None:
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return
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cls.key_transformation(target, options)
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def get_matrix(context: Context) -> Matrix:
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bone = context.active_pose_bone
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if bone:
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# Convert matrix to world space
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arm = context.active_object
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mat = arm.matrix_world @ bone.matrix
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else:
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mat = context.active_object.matrix_world
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return mat
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def set_matrix(context: Context, mat: Matrix) -> None:
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bone = context.active_pose_bone
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if bone:
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# Convert matrix to local space
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arm_eval = context.active_object.evaluated_get(context.view_layer.depsgraph)
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bone.matrix = arm_eval.matrix_world.inverted() @ mat
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AutoKeying.autokey_transformation(context, bone)
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else:
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context.active_object.matrix_world = mat
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AutoKeying.autokey_transformation(context, context.active_object)
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def _selected_keyframes(context: Context) -> list[float]:
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"""Return the list of frame numbers that have a selected key.
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Only keys on the active bone/object are considered.
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"""
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bone = context.active_pose_bone
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if bone:
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return _selected_keyframes_for_bone(context.active_object, bone)
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return _selected_keyframes_for_object(context.active_object)
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def _selected_keyframes_for_bone(object: Object, bone: PoseBone) -> list[float]:
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"""Return the list of frame numbers that have a selected key.
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Only keys on the given pose bone are considered.
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"""
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name = bpy.utils.escape_identifier(bone.name)
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return _selected_keyframes_in_action(object, f'pose.bones["{name}"].')
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def _selected_keyframes_for_object(object: Object) -> list[float]:
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"""Return the list of frame numbers that have a selected key.
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Only keys on the given object are considered.
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"""
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return _selected_keyframes_in_action(object, "")
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def _selected_keyframes_in_action(object: Object, rna_path_prefix: str) -> list[float]:
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"""Return the list of frame numbers that have a selected key.
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Only keys on the given object's Action on FCurves starting with rna_path_prefix are considered.
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"""
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action = object.animation_data and object.animation_data.action
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if action is None:
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return []
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keyframes = set()
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for fcurve in action.fcurves:
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if not fcurve.data_path.startswith(rna_path_prefix):
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continue
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for kp in fcurve.keyframe_points:
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if not kp.select_control_point:
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continue
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keyframes.add(kp.co.x)
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return sorted(keyframes)
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class OBJECT_OT_copy_global_transform(Operator):
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bl_idname = "object.copy_global_transform"
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bl_label = "Copy Global Transform"
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bl_description = (
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"Copies the matrix of the currently active object or pose bone to the clipboard. Uses world-space matrices"
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)
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# This operator cannot be un-done because it manipulates data outside Blender.
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bl_options = {'REGISTER'}
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@classmethod
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def poll(cls, context: Context) -> bool:
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return bool(context.active_pose_bone) or bool(context.active_object)
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def execute(self, context: Context) -> set[str]:
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mat = get_matrix(context)
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rows = [f" {tuple(row)!r}," for row in mat]
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as_string = "\n".join(rows)
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context.window_manager.clipboard = f"Matrix((\n{as_string}\n))"
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return {'FINISHED'}
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class UnableToMirrorError(Exception):
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"""Raised when mirroring is enabled but no mirror object/bone is set."""
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class OBJECT_OT_paste_transform(Operator):
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bl_idname = "object.paste_transform"
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bl_label = "Paste Global Transform"
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bl_description = (
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"Pastes the matrix from the clipboard to the currently active pose bone or object. Uses world-space matrices"
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)
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bl_options = {'REGISTER', 'UNDO'}
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_method_items = [
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(
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'CURRENT',
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"Current Transform",
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"Paste onto the current values only, only manipulating the animation data if auto-keying is enabled",
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),
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(
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'EXISTING_KEYS',
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"Selected Keys",
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"Paste onto frames that have a selected key, potentially creating new keys on those frames",
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),
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(
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'BAKE',
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"Bake on Key Range",
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"Paste onto all frames between the first and last selected key, creating new keyframes if necessary",
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),
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]
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method: bpy.props.EnumProperty( # type: ignore
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items=_method_items,
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name="Paste Method",
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description="Update the current transform, selected keyframes, or even create new keys",
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)
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bake_step: bpy.props.IntProperty( # type: ignore
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name="Frame Step",
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description="Only used for baking. Step=1 creates a key on every frame, step=2 bakes on 2s, etc",
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min=1,
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soft_min=1,
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soft_max=5,
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)
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use_mirror: bpy.props.BoolProperty( # type: ignore
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name="Mirror Transform",
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description="When pasting, mirror the transform relative to a specific object or bone",
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default=False,
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)
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mirror_axis_loc: bpy.props.EnumProperty( # type: ignore
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items=_axis_enum_items,
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name="Location Axis",
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description="Coordinate axis used to mirror the location part of the transform",
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default='x',
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)
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mirror_axis_rot: bpy.props.EnumProperty( # type: ignore
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items=_axis_enum_items,
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name="Rotation Axis",
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description="Coordinate axis used to mirror the rotation part of the transform",
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default='z',
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)
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@classmethod
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def poll(cls, context: Context) -> bool:
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if not context.active_pose_bone and not context.active_object:
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cls.poll_message_set("Select an object or pose bone")
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return False
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clipboard = context.window_manager.clipboard.strip()
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if not (clipboard.startswith("Matrix(") or clipboard.startswith("<Matrix 4x4")):
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cls.poll_message_set("Clipboard does not contain a valid matrix")
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return False
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return True
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@staticmethod
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def parse_print_m4(value: str) -> Optional[Matrix]:
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"""Parse output from Blender's print_m4() function.
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Expects four lines of space-separated floats.
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"""
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lines = value.strip().splitlines()
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if len(lines) != 4:
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return None
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floats = tuple(tuple(float(item) for item in line.split()) for line in lines)
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return Matrix(floats)
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@staticmethod
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def parse_repr_m4(value: str) -> Optional[Matrix]:
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"""Four lines of (a, b, c, d) floats."""
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lines = value.strip().splitlines()
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if len(lines) != 4:
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return None
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floats = tuple(tuple(float(item.strip()) for item in line.strip()[1:-1].split(',')) for line in lines)
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return Matrix(floats)
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def execute(self, context: Context) -> set[str]:
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clipboard = context.window_manager.clipboard.strip()
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if clipboard.startswith("Matrix"):
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mat = Matrix(ast.literal_eval(clipboard[6:]))
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elif clipboard.startswith("<Matrix 4x4"):
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mat = self.parse_repr_m4(clipboard[12:-1])
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else:
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mat = self.parse_print_m4(clipboard)
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if mat is None:
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self.report({'ERROR'}, "Clipboard does not contain a valid matrix")
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return {'CANCELLED'}
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try:
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mat = self._maybe_mirror(context, mat)
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except UnableToMirrorError:
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self.report({'ERROR'}, "Unable to mirror, no mirror object/bone configured")
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return {'CANCELLED'}
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applicator = {
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'CURRENT': self._paste_current,
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'EXISTING_KEYS': self._paste_existing_keys,
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'BAKE': self._paste_bake,
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}[self.method]
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return applicator(context, mat)
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def _maybe_mirror(self, context: Context, matrix: Matrix) -> Matrix:
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if not self.use_mirror:
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return matrix
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mirror_ob = context.scene.addon_copy_global_transform_mirror_ob
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mirror_bone = context.scene.addon_copy_global_transform_mirror_bone
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# No mirror object means "current armature object".
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ctx_ob = context.object
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if not mirror_ob and mirror_bone and ctx_ob and ctx_ob.type == 'ARMATURE':
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mirror_ob = ctx_ob
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if not mirror_ob:
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raise UnableToMirrorError()
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if mirror_ob.type == 'ARMATURE' and mirror_bone:
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return self._mirror_over_bone(matrix, mirror_ob, mirror_bone)
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return self._mirror_over_ob(matrix, mirror_ob)
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def _mirror_over_ob(self, matrix: Matrix, mirror_ob: bpy.types.Object) -> Matrix:
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mirror_matrix = mirror_ob.matrix_world
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return self._mirror_over_matrix(matrix, mirror_matrix)
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def _mirror_over_bone(self, matrix: Matrix, mirror_ob: bpy.types.Object, mirror_bone_name: str) -> Matrix:
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bone = mirror_ob.pose.bones[mirror_bone_name]
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mirror_matrix = mirror_ob.matrix_world @ bone.matrix
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return self._mirror_over_matrix(matrix, mirror_matrix)
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def _mirror_over_matrix(self, matrix: Matrix, mirror_matrix: Matrix) -> Matrix:
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# Compute the matrix in the space of the mirror matrix:
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mat_local = mirror_matrix.inverted() @ matrix
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# Decompose the matrix, as we don't want to touch the scale. This
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# operator should only mirror the translation and rotation components.
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trans, rot_q, scale = mat_local.decompose()
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# Mirror the translation component:
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axis_index = ord(self.mirror_axis_loc) - ord('x')
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trans[axis_index] *= -1
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# Flip the rotation, and use a rotation order that applies the to-be-flipped axes first.
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match self.mirror_axis_rot:
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case 'x':
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rot_e = rot_q.to_euler('XYZ')
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rot_e.x *= -1 # Flip the requested rotation axis.
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rot_e.y *= -1 # Also flip the bone roll.
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case 'y':
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rot_e = rot_q.to_euler('YZX')
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rot_e.y *= -1 # Flip the requested rotation axis.
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rot_e.z *= -1 # Also flip another axis? Not sure how to handle this one.
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case 'z':
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rot_e = rot_q.to_euler('ZYX')
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rot_e.z *= -1 # Flip the requested rotation axis.
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rot_e.y *= -1 # Also flip the bone roll.
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# Recompose the local matrix:
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mat_local = Matrix.LocRotScale(trans, rot_e, scale)
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# Go back to world space:
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mirrored_world = mirror_matrix @ mat_local
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return mirrored_world
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@staticmethod
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def _paste_current(context: Context, matrix: Matrix) -> set[str]:
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set_matrix(context, matrix)
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return {'FINISHED'}
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def _paste_existing_keys(self, context: Context, matrix: Matrix) -> set[str]:
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if not context.scene.tool_settings.use_keyframe_insert_auto:
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self.report({'ERROR'}, "This mode requires auto-keying to work properly")
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return {'CANCELLED'}
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frame_numbers = _selected_keyframes(context)
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if not frame_numbers:
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self.report({'WARNING'}, "No selected frames found")
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return {'CANCELLED'}
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self._paste_on_frames(context, frame_numbers, matrix)
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return {'FINISHED'}
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def _paste_bake(self, context: Context, matrix: Matrix) -> set[str]:
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if not context.scene.tool_settings.use_keyframe_insert_auto:
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self.report({'ERROR'}, "This mode requires auto-keying to work properly")
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return {'CANCELLED'}
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bake_step = max(1, self.bake_step)
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# Put the clamped bake step back into RNA for the redo panel.
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self.bake_step = bake_step
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frame_start, frame_end = self._determine_bake_range(context)
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frame_range = range(round(frame_start), round(frame_end) + bake_step, bake_step)
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self._paste_on_frames(context, frame_range, matrix)
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return {'FINISHED'}
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def _determine_bake_range(self, context: Context) -> tuple[float, float]:
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frame_numbers = _selected_keyframes(context)
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if frame_numbers:
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# Note that these could be the same frame, if len(frame_numbers) == 1:
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return frame_numbers[0], frame_numbers[-1]
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if context.scene.use_preview_range:
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self.report({'INFO'}, "No selected keys, pasting over preview range")
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return context.scene.frame_preview_start, context.scene.frame_preview_end
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self.report({'INFO'}, "No selected keys, pasting over scene range")
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return context.scene.frame_start, context.scene.frame_end
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def _paste_on_frames(self, context: Context, frame_numbers: Iterable[float], matrix: Matrix) -> None:
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current_frame = context.scene.frame_current_final
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try:
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for frame in frame_numbers:
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context.scene.frame_set(int(frame), subframe=frame % 1.0)
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set_matrix(context, matrix)
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finally:
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context.scene.frame_set(int(current_frame), subframe=current_frame % 1.0)
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class PanelMixin:
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bl_space_type = 'VIEW_3D'
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bl_region_type = 'UI'
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bl_category = "Animation"
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class VIEW3D_PT_copy_global_transform(PanelMixin, Panel):
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bl_label = "Global Transform"
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def draw(self, context: Context) -> None:
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layout = self.layout
|
|
|
|
# No need to put "Global Transform" in the operator text, given that it's already in the panel title.
|
|
layout.operator("object.copy_global_transform", text="Copy", icon='COPYDOWN')
|
|
|
|
paste_col = layout.column(align=True)
|
|
|
|
paste_row = paste_col.row(align=True)
|
|
paste_props = paste_row.operator("object.paste_transform", text="Paste", icon='PASTEDOWN')
|
|
paste_props.method = 'CURRENT'
|
|
paste_props.use_mirror = False
|
|
paste_props = paste_row.operator("object.paste_transform", text="Mirrored", icon='PASTEFLIPDOWN')
|
|
paste_props.method = 'CURRENT'
|
|
paste_props.use_mirror = True
|
|
|
|
wants_autokey_col = paste_col.column(align=True)
|
|
has_autokey = context.scene.tool_settings.use_keyframe_insert_auto
|
|
wants_autokey_col.enabled = has_autokey
|
|
if not has_autokey:
|
|
wants_autokey_col.label(text="These require auto-key:")
|
|
|
|
wants_autokey_col.operator(
|
|
"object.paste_transform",
|
|
text="Paste to Selected Keys",
|
|
icon='PASTEDOWN',
|
|
).method = 'EXISTING_KEYS'
|
|
wants_autokey_col.operator(
|
|
"object.paste_transform",
|
|
text="Paste and Bake",
|
|
icon='PASTEDOWN',
|
|
).method = 'BAKE'
|
|
|
|
|
|
class VIEW3D_PT_copy_global_transform_mirror(PanelMixin, Panel):
|
|
bl_label = "Mirror Options"
|
|
bl_parent_id = "VIEW3D_PT_copy_global_transform"
|
|
|
|
def draw(self, context: Context) -> None:
|
|
layout = self.layout
|
|
scene = context.scene
|
|
layout.prop(scene, 'addon_copy_global_transform_mirror_ob', text="Object")
|
|
|
|
mirror_ob = scene.addon_copy_global_transform_mirror_ob
|
|
if mirror_ob is None:
|
|
# No explicit mirror object means "the current armature", so then the bone name should be editable.
|
|
if context.object and context.object.type == 'ARMATURE':
|
|
self._bone_search(layout, scene, context.object)
|
|
else:
|
|
self._bone_entry(layout, scene)
|
|
elif mirror_ob.type == 'ARMATURE':
|
|
self._bone_search(layout, scene, mirror_ob)
|
|
|
|
def _bone_search(self, layout: UILayout, scene: bpy.types.Scene, armature_ob: bpy.types.Object) -> None:
|
|
"""Search within the bones of the given armature."""
|
|
assert armature_ob and armature_ob.type == 'ARMATURE'
|
|
|
|
layout.prop_search(
|
|
scene,
|
|
"addon_copy_global_transform_mirror_bone",
|
|
armature_ob.data,
|
|
"edit_bones" if armature_ob.mode == 'EDIT' else "bones",
|
|
text="Bone",
|
|
)
|
|
|
|
def _bone_entry(self, layout: UILayout, scene: bpy.types.Scene) -> None:
|
|
"""Allow manual entry of a bone name."""
|
|
layout.prop(scene, "addon_copy_global_transform_mirror_bone", text="Bone")
|
|
|
|
|
|
### Messagebus subscription to monitor changes & refresh panels.
|
|
_msgbus_owner = object()
|
|
|
|
|
|
def _refresh_3d_panels():
|
|
refresh_area_types = {'VIEW_3D'}
|
|
for win in bpy.context.window_manager.windows:
|
|
for area in win.screen.areas:
|
|
if area.type not in refresh_area_types:
|
|
continue
|
|
area.tag_redraw()
|
|
|
|
|
|
classes = (
|
|
OBJECT_OT_copy_global_transform,
|
|
OBJECT_OT_paste_transform,
|
|
VIEW3D_PT_copy_global_transform,
|
|
VIEW3D_PT_copy_global_transform_mirror,
|
|
)
|
|
_register, _unregister = bpy.utils.register_classes_factory(classes)
|
|
|
|
|
|
def _register_message_bus() -> None:
|
|
bpy.msgbus.subscribe_rna(
|
|
key=(bpy.types.ToolSettings, "use_keyframe_insert_auto"),
|
|
owner=_msgbus_owner,
|
|
args=(),
|
|
notify=_refresh_3d_panels,
|
|
options={'PERSISTENT'},
|
|
)
|
|
|
|
|
|
def _unregister_message_bus() -> None:
|
|
bpy.msgbus.clear_by_owner(_msgbus_owner)
|
|
|
|
|
|
@bpy.app.handlers.persistent # type: ignore
|
|
def _on_blendfile_load_post(none: Any, other_none: Any) -> None:
|
|
# The parameters are required, but both are None.
|
|
_register_message_bus()
|
|
|
|
|
|
def register():
|
|
_register()
|
|
bpy.app.handlers.load_post.append(_on_blendfile_load_post)
|
|
|
|
# The mirror object & bone name are stored on the scene, and not on the
|
|
# operator. This makes it possible to set up the operator for use in a
|
|
# certain scene, while keeping hotkey assignments working as usual.
|
|
#
|
|
# The goal is to allow hotkeys for "copy", "paste", and "paste mirrored",
|
|
# while keeping the other choices in a more global place.
|
|
bpy.types.Scene.addon_copy_global_transform_mirror_ob = bpy.props.PointerProperty(
|
|
type=bpy.types.Object,
|
|
name="Mirror Object",
|
|
description="Object to mirror over. Leave empty and name a bone to always mirror "
|
|
"over that bone of the active armature",
|
|
)
|
|
bpy.types.Scene.addon_copy_global_transform_mirror_bone = bpy.props.StringProperty(
|
|
name="Mirror Bone",
|
|
description="Bone to use for the mirroring",
|
|
)
|
|
|
|
|
|
def unregister():
|
|
_unregister()
|
|
_unregister_message_bus()
|
|
bpy.app.handlers.load_post.remove(_on_blendfile_load_post)
|
|
|
|
del bpy.types.Scene.addon_copy_global_transform_mirror_ob
|
|
del bpy.types.Scene.addon_copy_global_transform_mirror_bone
|