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# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# <pep8 compliant>
import bpy
def pose_info():
from mathutils import Matrix
info = {}
obj = bpy.context.object
pose = obj.pose
pose_items = pose.bones.items()
for name, pbone in pose_items:
binfo = {}
bone = pbone.bone
binfo["parent"] = getattr(bone.parent, "name", None)
binfo["bone"] = bone
binfo["pbone"] = pbone
binfo["matrix_local"] = bone.matrix_local.copy()
try:
binfo["matrix_local_inv"] = binfo["matrix_local"].inverted()
except:
binfo["matrix_local_inv"] = Matrix()
binfo["matrix"] = bone.matrix.copy()
binfo["matrix_pose"] = pbone.matrix.copy()
try:
binfo["matrix_pose_inv"] = binfo["matrix_pose"].inverted()
except:
binfo["matrix_pose_inv"] = Matrix()
print(binfo["matrix_pose"])
info[name] = binfo
for name, pbone in pose_items:
binfo = info[name]
binfo_parent = binfo.get("parent", None)
if binfo_parent:
binfo_parent = info[binfo_parent]
matrix = binfo["matrix_pose"]
rest_matrix = binfo["matrix_local"]
if binfo_parent:
matrix = binfo_parent["matrix_pose_inv"] * matrix
rest_matrix = binfo_parent["matrix_local_inv"] * rest_matrix
matrix = rest_matrix.inverted() * matrix
binfo["matrix_key"] = matrix.copy()
return info
def bake(frame_start, frame_end, step=1, only_selected=False):
scene = bpy.context.scene
obj = bpy.context.object
pose = obj.pose
info_ls = []
frame_range = range(frame_start, frame_end + 1, step)
# could spped this up by applying steps here too...
for f in frame_range:
scene.frame_set(f)
info = pose_info()
info_ls.append(info)
f += 1
action = bpy.data.actions.new("Action")
bpy.context.object.animation_data.action = action
pose_items = pose.bones.items()
for name, pbone in pose_items:
if only_selected and not pbone.bone.select:
continue
for f in frame_range:
matrix = info_ls[int((f - frame_start) / step)][name]["matrix_key"]
#pbone.location = matrix.to_translation()
#pbone.rotation_quaternion = matrix.to_quaternion()
pbone.matrix_basis = matrix
pbone.keyframe_insert("location", -1, f, name)
rotation_mode = pbone.rotation_mode
if rotation_mode == 'QUATERNION':
pbone.keyframe_insert("rotation_quaternion", -1, f, name)
elif rotation_mode == 'AXIS_ANGLE':
pbone.keyframe_insert("rotation_axis_angle", -1, f, name)
else: # euler, XYZ, ZXY etc
pbone.keyframe_insert("rotation_euler", -1, f, name)
pbone.keyframe_insert("scale", -1, f, name)
return action
from bpy.props import IntProperty, BoolProperty
class BakeAction(bpy.types.Operator):
'''Bake animation to an Action'''
bl_idname = "nla.bake"
bl_label = "Bake Action"
bl_options = {'REGISTER', 'UNDO'}
frame_start = IntProperty(name="Start Frame",
description="Start frame for baking",
default=1, min=1, max=300000)
frame_end = IntProperty(name="End Frame",
description="End frame for baking",
default=250, min=1, max=300000)
step = IntProperty(name="Frame Step",
description="Frame Step",
default=1, min=1, max=120)
only_selected = BoolProperty(name="Only Selected",
default=True)
def execute(self, context):
action = bake(self.frame_start, self.frame_end, self.step, self.only_selected)
# basic cleanup, could move elsewhere
for fcu in action.fcurves:
keyframe_points = fcu.keyframe_points
i = 1
while i < len(fcu.keyframe_points) - 1:
val_prev = keyframe_points[i - 1].co[1]
val_next = keyframe_points[i + 1].co[1]
val = keyframe_points[i].co[1]
if abs(val - val_prev) + abs(val - val_next) < 0.0001:
keyframe_points.remove(keyframe_points[i])
else:
i += 1
return {'FINISHED'}
def invoke(self, context, event):
wm = context.window_manager
return wm.invoke_props_dialog(self)
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