forked from bartvdbraak/blender
307 lines
9.1 KiB
Python
307 lines
9.1 KiB
Python
# ##### BEGIN GPL LICENSE BLOCK #####
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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# ##### END GPL LICENSE BLOCK #####
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# <pep8-80 compliant>
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import bpy
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from bpy.types import Operator
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def pose_frame_info(obj):
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from mathutils import Matrix
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info = {}
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pose = obj.pose
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pose_items = pose.bones.items()
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for name, pbone in pose_items:
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binfo = {}
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bone = pbone.bone
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binfo["parent"] = getattr(bone.parent, "name", None)
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binfo["bone"] = bone
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binfo["pbone"] = pbone
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binfo["matrix_local"] = bone.matrix_local.copy()
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try:
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binfo["matrix_local_inv"] = binfo["matrix_local"].inverted()
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except:
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binfo["matrix_local_inv"] = Matrix()
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binfo["matrix"] = bone.matrix.copy()
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binfo["matrix_pose"] = pbone.matrix.copy()
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try:
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binfo["matrix_pose_inv"] = binfo["matrix_pose"].inverted()
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except:
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binfo["matrix_pose_inv"] = Matrix()
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info[name] = binfo
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for name, pbone in pose_items:
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binfo = info[name]
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binfo_parent = binfo.get("parent", None)
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if binfo_parent:
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binfo_parent = info[binfo_parent]
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matrix = binfo["matrix_pose"]
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rest_matrix = binfo["matrix_local"]
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if binfo_parent:
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matrix = binfo_parent["matrix_pose_inv"] * matrix
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rest_matrix = binfo_parent["matrix_local_inv"] * rest_matrix
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binfo["matrix_key"] = rest_matrix.inverted() * matrix
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return info
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def obj_frame_info(obj):
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info = {}
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# parent = obj.parent
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info["matrix_key"] = obj.matrix_local.copy()
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return info
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def bake(frame_start,
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frame_end, step=1,
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only_selected=False,
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do_pose=True,
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do_object=True,
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do_constraint_clear=False,
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action=None):
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scene = bpy.context.scene
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obj = bpy.context.object
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pose = obj.pose
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frame_back = scene.frame_current
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if pose is None:
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do_pose = False
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if do_pose is None and do_object is None:
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return None
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pose_info = []
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obj_info = []
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frame_range = range(frame_start, frame_end + 1, step)
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# -------------------------------------------------------------------------
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# Collect transformations
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# could speed this up by applying steps here too...
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for f in frame_range:
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scene.frame_set(f)
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if do_pose:
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pose_info.append(pose_frame_info(obj))
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if do_object:
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obj_info.append(obj_frame_info(obj))
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f += 1
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# -------------------------------------------------------------------------
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# Create action
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# incase animation data hassnt been created
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atd = obj.animation_data_create()
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if action is None:
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action = bpy.data.actions.new("Action")
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atd.action = action
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if do_pose:
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pose_items = pose.bones.items()
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else:
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pose_items = [] # skip
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# -------------------------------------------------------------------------
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# Apply transformations to action
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# pose
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for name, pbone in (pose_items if do_pose else ()):
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if only_selected and not pbone.bone.select:
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continue
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if do_constraint_clear:
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while pbone.constraints:
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pbone.constraints.remove(pbone.constraints[0])
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for f in frame_range:
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matrix = pose_info[(f - frame_start) // step][name]["matrix_key"]
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# pbone.location = matrix.to_translation()
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# pbone.rotation_quaternion = matrix.to_quaternion()
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pbone.matrix_basis = matrix
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pbone.keyframe_insert("location", -1, f, name)
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rotation_mode = pbone.rotation_mode
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if rotation_mode == 'QUATERNION':
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pbone.keyframe_insert("rotation_quaternion", -1, f, name)
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elif rotation_mode == 'AXIS_ANGLE':
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pbone.keyframe_insert("rotation_axis_angle", -1, f, name)
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else: # euler, XYZ, ZXY etc
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pbone.keyframe_insert("rotation_euler", -1, f, name)
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pbone.keyframe_insert("scale", -1, f, name)
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# object. TODO. multiple objects
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if do_object:
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if do_constraint_clear:
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while obj.constraints:
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obj.constraints.remove(obj.constraints[0])
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for f in frame_range:
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matrix = obj_info[(f - frame_start) // step]["matrix_key"]
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obj.matrix_local = matrix
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obj.keyframe_insert("location", -1, f)
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rotation_mode = obj.rotation_mode
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if rotation_mode == 'QUATERNION':
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obj.keyframe_insert("rotation_quaternion", -1, f)
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elif rotation_mode == 'AXIS_ANGLE':
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obj.keyframe_insert("rotation_axis_angle", -1, f)
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else: # euler, XYZ, ZXY etc
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obj.keyframe_insert("rotation_euler", -1, f)
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obj.keyframe_insert("scale", -1, f)
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scene.frame_set(frame_back)
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return action
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from bpy.props import IntProperty, BoolProperty, EnumProperty
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class BakeAction(Operator):
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'''Bake animation to an Action'''
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bl_idname = "nla.bake"
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bl_label = "Bake Action"
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bl_options = {'REGISTER', 'UNDO'}
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frame_start = IntProperty(
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name="Start Frame",
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description="Start frame for baking",
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min=0, max=300000,
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default=1,
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)
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frame_end = IntProperty(
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name="End Frame",
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description="End frame for baking",
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min=1, max=300000,
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default=250,
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)
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step = IntProperty(
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name="Frame Step",
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description="Frame Step",
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min=1, max=120,
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default=1,
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)
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only_selected = BoolProperty(
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name="Only Selected",
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default=True,
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)
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clear_consraints = BoolProperty(
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name="Clear Constraints",
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default=False,
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)
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bake_types = EnumProperty(
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name="Bake Data",
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options={'ENUM_FLAG'},
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items=(('POSE', "Pose", ""),
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('OBJECT', "Object", ""),
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),
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default={'POSE'},
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)
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def execute(self, context):
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action = bake(self.frame_start,
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self.frame_end,
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self.step,
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self.only_selected,
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'POSE' in self.bake_types,
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'OBJECT' in self.bake_types,
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self.clear_consraints,
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)
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if action is None:
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self.report({'INFO'}, "Nothing to bake")
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return {'CANCELLED'}
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# basic cleanup, could move elsewhere
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for fcu in action.fcurves:
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keyframe_points = fcu.keyframe_points
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i = 1
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while i < len(fcu.keyframe_points) - 1:
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val_prev = keyframe_points[i - 1].co[1]
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val_next = keyframe_points[i + 1].co[1]
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val = keyframe_points[i].co[1]
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if abs(val - val_prev) + abs(val - val_next) < 0.0001:
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keyframe_points.remove(keyframe_points[i])
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else:
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i += 1
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return {'FINISHED'}
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def invoke(self, context, event):
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wm = context.window_manager
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return wm.invoke_props_dialog(self)
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class ClearUselessActions(Operator):
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'''Mark actions with no F-Curves for deletion after save+reload of ''' \
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'''file preserving "action libraries"'''
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bl_idname = "anim.clear_useless_actions"
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bl_label = "Clear Useless Actions"
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bl_options = {'REGISTER', 'UNDO'}
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only_unused = BoolProperty(name="Only Unused",
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description="Only unused (Fake User only) actions get considered",
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default=True)
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@classmethod
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def poll(cls, context):
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return len(bpy.data.actions) != 0
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def execute(self, context):
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removed = 0
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for action in bpy.data.actions:
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# if only user is "fake" user...
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if ((self.only_unused is False) or
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(action.use_fake_user and action.users == 1)):
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# if it has F-Curves, then it's a "action library"
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# (i.e. walk, wave, jump, etc.)
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# and should be left alone as that's what fake users are for!
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if not action.fcurves:
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# mark action for deletion
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action.user_clear()
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removed += 1
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self.report({'INFO'}, "Removed %d empty and/or fake-user only Actions"
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% removed)
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return {'FINISHED'}
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