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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
from rigify import RigifyError
# not used, defined for completeness
METARIG_NAMES = tuple()
def metarig_template():
# generated by rigify.write_meta_rig
bpy.ops.object.mode_set(mode='EDIT')
obj = bpy.context.active_object
arm = obj.data
bone = arm.edit_bones.new('bonesker')
bone.head[:] = 0.0000, 0.0000, 0.0000
bone.tail[:] = -0.0000, 0.7382, 0.1895
bone.roll = -0.0000
bone.connected = False
bone = arm.edit_bones.new('delta')
bone.head[:] = -0.0497, 0.8414, 0.3530
bone.tail[:] = -0.2511, 1.1588, 0.9653
bone.roll = 2.6044
bone.connected = False
bone.parent = arm.edit_bones['bonesker']
bone = arm.edit_bones.new('boney')
bone.head[:] = 0.7940, 2.5592, 0.4134
bone.tail[:] = 0.7940, 3.3975, 0.4890
bone.roll = 3.1416
bone.connected = False
bone.parent = arm.edit_bones['delta']
bpy.ops.object.mode_set(mode='OBJECT')
pbone = obj.pose.bones['delta']
pbone['type'] = 'delta'
def metarig_definition(obj, orig_bone_name):
'''
The bone given is the head, its parent is the body,
# its only child the first of a chain with matching basenames.
eg.
body -> head -> neck_01 -> neck_02 -> neck_03.... etc
'''
arm = obj.data
delta = arm.bones[orig_bone_name]
children = delta.children
if len(children) != 1:
raise RigifyError("only 1 child supported for delta on bone '%s'" % delta.name)
if delta.connected:
raise RigifyError("bone cannot be connected to its parent '%s'" % delta.name)
bone_definition = [delta.name, children[0].name]
return bone_definition
def main(obj, bone_definition, base_names, options):
'''
Use this bone to define a delta thats applied to its child in pose mode.
'''
mode_orig = obj.mode
bpy.ops.object.mode_set(mode='OBJECT')
delta_name, child_name = bone_definition
delta_pbone = obj.pose.bones[delta_name]
arm = obj.data
child_pbone = obj.pose.bones[child_name]
delta_phead = delta_pbone.head.copy()
delta_ptail = delta_pbone.tail.copy()
delta_pmatrix = delta_pbone.matrix.copy()
child_phead = child_pbone.head.copy()
child_ptail = child_pbone.tail.copy()
child_pmatrix = child_pbone.matrix.copy()
children = delta_pbone.children
bpy.ops.object.mode_set(mode='EDIT')
delta_ebone = arm.edit_bones[delta_name]
child_ebone = arm.edit_bones[child_name]
delta_head = delta_ebone.head.copy()
delta_tail = delta_ebone.tail.copy()
child_head = child_ebone.head.copy()
child_tail = child_ebone.tail.copy()
#arm.edit_bones.remove(delta_ebone)
#del delta_ebone # cant use this
del child_pbone
bpy.ops.object.mode_set(mode='OBJECT')
# Move the child bone to the deltas location
obj.animation_data_create()
delta_pbone = obj.pose.bones[delta_name]
# child_pbone = obj.pose.bones[child_name]
# ------------------- drivers
delta_pbone.rotation_mode = 'XYZ'
rot = delta_pmatrix.invert().rotation_part() * child_pmatrix.rotation_part()
rot = rot.invert().to_euler()
fcurve_drivers = delta_pbone.driver_add("rotation_euler", -1)
for i, fcurve_driver in enumerate(fcurve_drivers):
driver = fcurve_driver.driver
driver.type = 'AVERAGE'
#mod = fcurve_driver.modifiers.new('GENERATOR')
mod = fcurve_driver.modifiers[0]
mod.poly_order = 1
mod.coefficients[0] = rot[i]
mod.coefficients[1] = 0.0
# tricky, find the transform to drive the bone to this location.
delta_head_offset = child_pmatrix.rotation_part() * (delta_phead - child_phead)
fcurve_drivers = delta_pbone.driver_add("location", -1)
for i, fcurve_driver in enumerate(fcurve_drivers):
driver = fcurve_driver.driver
driver.type = 'AVERAGE'
#mod = fcurve_driver.modifiers.new('GENERATOR')
mod = fcurve_driver.modifiers[0]
mod.poly_order = 1
mod.coefficients[0] = delta_head_offset[i]
mod.coefficients[1] = 0.0
bpy.ops.object.mode_set(mode='EDIT')
bpy.ops.object.mode_set(mode=mode_orig)
# no blendeing
return None
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