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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 ========================
import bpy
from rigify.utils import MetarigError
from rigify.utils import copy_bone
from rigify.utils import connected_children_names
from rigify.utils import strip_org, make_deformer_name
from rigify.utils import create_bone_widget
class Rig:
""" A "copy_chain" rig. All it does is duplicate the original bone chain
and constrain it.
This is a control and deformation rig.
"""
def __init__(self, obj, bone_name, params):
""" Gather and validate data about the rig.
"""
self.obj = obj
self.org_bones = [bone_name] + connected_children_names(obj, bone_name)
self.params = params
if len(self.org_bones) <= 1:
raise MetarigError("RIGIFY ERROR: Bone '%s': input to rig type must be a chain of 2 or more bones." % (strip_org(bone)))
def generate(self):
""" Generate the rig.
Do NOT modify any of the original bones, except for adding constraints.
The main armature should be selected and active before this is called.
"""
bpy.ops.object.mode_set(mode='EDIT')
# Create the deformation and control bone chains.
# Just copies of the original chain.
def_chain = []
ctrl_chain = []
for i in range(len(self.org_bones)):
name = self.org_bones[i]
# Create bones
def_bone = copy_bone(self.obj, name)
ctrl_bone = copy_bone(self.obj, name)
# Get edit bones
eb = self.obj.data.edit_bones
def_bone_e = eb[def_bone]
ctrl_bone_e = eb[ctrl_bone]
# Set their names
def_bone_e.name = make_deformer_name(strip_org(name))
ctrl_bone_e.name = strip_org(name)
# Add them to their respective lists
def_chain += [def_bone_e.name]
ctrl_chain += [ctrl_bone_e.name]
# Parenting
if i == 0:
# First bone
def_bone_e.parent = eb[self.org_bones[i]].parent
ctrl_bone_e.parent = eb[self.org_bones[i]].parent
else:
# The rest
def_bone_e.parent = eb[def_chain[i-1]]
ctrl_bone_e.parent = eb[ctrl_chain[i-1]]
bpy.ops.object.mode_set(mode='OBJECT')
pb = self.obj.pose.bones
# Constraint org and def to the control bones
for org, ctrl, defrm in zip(self.org_bones, ctrl_chain, def_chain):
con = pb[org].constraints.new('COPY_TRANSFORMS')
con.name = "copy_transforms"
con.target = self.obj
con.subtarget = ctrl
con = pb[defrm].constraints.new('COPY_TRANSFORMS')
con.name = "copy_transforms"
con.target = self.obj
con.subtarget = ctrl
# Create control widgets
for bone in ctrl_chain:
create_bone_widget(self.obj, bone)
@classmethod
def create_sample(self, obj):
""" Create a sample metarig for this rig type.
"""
# generated by rigify.utils.write_metarig
bpy.ops.object.mode_set(mode='EDIT')
arm = obj.data
bones = {}
bone = arm.edit_bones.new('bone.01')
bone.head[:] = 0.0000, 0.0000, 0.0000
bone.tail[:] = 0.0000, 0.0000, 0.3333
bone.roll = 0.0000
bone.use_connect = False
bones['bone.01'] = bone.name
bone = arm.edit_bones.new('bone.02')
bone.head[:] = 0.0000, 0.0000, 0.3333
bone.tail[:] = 0.0000, 0.0000, 0.6667
bone.roll = 3.1416
bone.use_connect = True
bone.parent = arm.edit_bones[bones['bone.01']]
bones['bone.02'] = bone.name
bone = arm.edit_bones.new('bone.03')
bone.head[:] = 0.0000, 0.0000, 0.6667
bone.tail[:] = 0.0000, 0.0000, 1.0000
bone.roll = 3.1416
bone.use_connect = True
bone.parent = arm.edit_bones[bones['bone.02']]
bones['bone.03'] = bone.name
bpy.ops.object.mode_set(mode='OBJECT')
pbone = obj.pose.bones[bones['bone.01']]
pbone.rigify_type = 'basic.copy_chain'
pbone.lock_location = (False, False, False)
pbone.lock_rotation = (False, False, False)
pbone.lock_rotation_w = False
pbone.lock_scale = (False, False, False)
pbone.rotation_mode = 'QUATERNION'
pbone.rigify_parameters.add()
pbone = obj.pose.bones[bones['bone.02']]
pbone.rigify_type = ''
pbone.lock_location = (False, False, False)
pbone.lock_rotation = (False, False, False)
pbone.lock_rotation_w = False
pbone.lock_scale = (False, False, False)
pbone.rotation_mode = 'QUATERNION'
pbone = obj.pose.bones[bones['bone.03']]
pbone.rigify_type = ''
pbone.lock_location = (False, False, False)
pbone.lock_rotation = (False, False, False)
pbone.lock_rotation_w = False
pbone.lock_scale = (False, False, False)
pbone.rotation_mode = 'QUATERNION'
bpy.ops.object.mode_set(mode='EDIT')
for bone in arm.edit_bones:
bone.select = False
bone.select_head = False
bone.select_tail = False
for b in bones:
bone = arm.edit_bones[bones[b]]
bone.select = True
bone.select_head = True
bone.select_tail = True
arm.edit_bones.active = bone
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