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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 math import sin, cos, pi
from rigify.utils import MetarigError
from rigify.utils import copy_bone
from rigify.utils import strip_org, deformer, mch
from rigify.utils import create_widget
import re
def bone_siblings(obj, bone):
""" Returns a list of the siblings of the given bone.
This requires that the bones has a parent.
"""
parent = obj.data.bones[bone].parent
if parent is None:
return []
bones = []
for b in parent.children:
if b.name != bone:
bones += [b.name]
return bones
def bone_distance(obj, bone1, bone2):
""" Returns the distance between two bones.
"""
vec = obj.data.bones[bone1].head - obj.data.bones[bone2].head
return vec.length
class Rig:
""" A "palm" rig. A set of sibling bones that bend with each other.
This is a control and deformation rig.
"""
def __init__(self, obj, bone, params):
""" Gather and validate data about the rig.
"""
self.obj = obj
self.params = params
siblings = bone_siblings(obj, bone)
if len(siblings) == 0:
raise MetarigError("RIGIFY ERROR: Bone '%s': must have a parent and at least one sibling." % (strip_org(bone)))
# Sort list by name and distance
siblings.sort()
siblings.sort(key=lambda b: bone_distance(obj, bone, b))
self.org_bones = [bone] + siblings
# Get rig parameters
self.palm_rotation_axis = params.palm_rotation_axis
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')
# Figure out the name for the control bone (remove the last .##)
last_bone = self.org_bones[-1:][0]
ctrl_name = re.sub("([0-9]+\.)", "", strip_org(last_bone)[::-1], count=1)[::-1]
# Make control bone
ctrl = copy_bone(self.obj, last_bone, ctrl_name)
# Make deformation bones
def_bones = []
for bone in self.org_bones:
b = copy_bone(self.obj, bone, deformer(strip_org(bone)))
def_bones += [b]
# Parenting
eb = self.obj.data.edit_bones
for d, b in zip(def_bones, self.org_bones):
eb[d].use_connect = False
eb[d].parent = eb[b]
# Constraints
bpy.ops.object.mode_set(mode='OBJECT')
pb = self.obj.pose.bones
i = 0
div = len(self.org_bones) - 1
for b in self.org_bones:
con = pb[b].constraints.new('COPY_TRANSFORMS')
con.name = "copy_transforms"
con.target = self.obj
con.subtarget = ctrl
con.target_space = 'LOCAL'
con.owner_space = 'LOCAL'
con.influence = i / div
con = pb[b].constraints.new('COPY_ROTATION')
con.name = "copy_rotation"
con.target = self.obj
con.subtarget = ctrl
con.target_space = 'LOCAL'
con.owner_space = 'LOCAL'
if 'X' in self.palm_rotation_axis:
con.invert_x = True
con.use_x = True
con.use_z = False
else:
con.invert_z = True
con.use_x = False
con.use_z = True
con.use_y = False
con.influence = (i / div) - (1 - cos((i * pi / 2) / div))
i += 1
# Create control widget
w = create_widget(self.obj, ctrl)
if w != None:
mesh = w.data
verts = [(0.15780271589756012, 2.086162567138672e-07, -0.30000004172325134), (0.15780259668827057, 1.0, -0.2000001072883606), (-0.15780280530452728, 0.9999999403953552, -0.20000004768371582), (-0.15780259668827057, -2.086162567138672e-07, -0.29999998211860657), (-0.15780256688594818, -2.7089754439657554e-07, 0.30000004172325134), (-0.1578027755022049, 0.9999998807907104, 0.19999995827674866), (0.15780262649059296, 0.9999999403953552, 0.19999989867210388), (0.1578027456998825, 1.4633496903115883e-07, 0.29999998211860657), (0.15780268609523773, 0.2500001788139343, -0.27500003576278687), (-0.15780264139175415, 0.24999985098838806, -0.2749999761581421), (0.15780262649059296, 0.7500000596046448, -0.22500008344650269), (-0.1578027606010437, 0.7499998807907104, -0.2250000238418579), (0.15780265629291534, 0.75, 0.22499991953372955), (0.15780271589756012, 0.2500000596046448, 0.2749999761581421), (-0.15780261158943176, 0.2499997615814209, 0.27500003576278687), (-0.1578027307987213, 0.7499998807907104, 0.22499997913837433)]
if 'Z' in self.palm_rotation_axis:
# Flip x/z coordinates
temp = []
for v in verts:
temp += [(v[2], v[1], v[0])]
verts = temp
edges = [(1, 2), (0, 3), (4, 7), (5, 6), (8, 0), (9, 3), (10, 1), (11, 2), (12, 6), (13, 7), (4, 14), (15, 5), (10, 8), (11, 9), (15, 14), (12, 13)]
mesh.from_pydata(verts, edges, [])
mesh.update()
mod = w.modifiers.new("subsurf", 'SUBSURF')
mod.levels = 2
@classmethod
def add_parameters(self, group):
""" Add the parameters of this rig type to the
RigifyParameters PropertyGroup
"""
items = [('X', 'X', ''), ('Z', 'Z', '')]
group.palm_rotation_axis = bpy.props.EnumProperty(items=items, name="Palm Rotation Axis", default='X')
@classmethod
def parameters_ui(self, layout, obj, bone):
""" Create the ui for the rig parameters.
"""
params = obj.pose.bones[bone].rigify_parameters[0]
r = layout.row()
r.label(text="Primary rotation axis:")
r.prop(params, "palm_rotation_axis", text="")
@classmethod
def create_sample(self, obj):
# generated by rigify.utils.write_metarig
bpy.ops.object.mode_set(mode='EDIT')
arm = obj.data
bones = {}
bone = arm.edit_bones.new('palm.parent')
bone.head[:] = 0.0000, 0.0000, 0.0000
bone.tail[:] = 0.0577, 0.0000, -0.0000
bone.roll = 3.1416
bone.use_connect = False
bones['palm.parent'] = bone.name
bone = arm.edit_bones.new('palm.04')
bone.head[:] = 0.0577, 0.0315, -0.0000
bone.tail[:] = 0.1627, 0.0315, -0.0000
bone.roll = 3.1416
bone.use_connect = False
bone.parent = arm.edit_bones[bones['palm.parent']]
bones['palm.04'] = bone.name
bone = arm.edit_bones.new('palm.03')
bone.head[:] = 0.0577, 0.0105, -0.0000
bone.tail[:] = 0.1627, 0.0105, -0.0000
bone.roll = 3.1416
bone.use_connect = False
bone.parent = arm.edit_bones[bones['palm.parent']]
bones['palm.03'] = bone.name
bone = arm.edit_bones.new('palm.02')
bone.head[:] = 0.0577, -0.0105, -0.0000
bone.tail[:] = 0.1627, -0.0105, -0.0000
bone.roll = 3.1416
bone.use_connect = False
bone.parent = arm.edit_bones[bones['palm.parent']]
bones['palm.02'] = bone.name
bone = arm.edit_bones.new('palm.01')
bone.head[:] = 0.0577, -0.0315, -0.0000
bone.tail[:] = 0.1627, -0.0315, -0.0000
bone.roll = 3.1416
bone.use_connect = False
bone.parent = arm.edit_bones[bones['palm.parent']]
bones['palm.01'] = bone.name
bpy.ops.object.mode_set(mode='OBJECT')
pbone = obj.pose.bones[bones['palm.parent']]
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['palm.04']]
pbone.rigify_type = ''
pbone.lock_location = (False, False, False)
pbone.lock_rotation = (False, True, True)
pbone.lock_rotation_w = False
pbone.lock_scale = (False, False, False)
pbone.rotation_mode = 'YXZ'
pbone = obj.pose.bones[bones['palm.03']]
pbone.rigify_type = ''
pbone.lock_location = (False, False, False)
pbone.lock_rotation = (False, True, True)
pbone.lock_rotation_w = False
pbone.lock_scale = (False, False, False)
pbone.rotation_mode = 'YXZ'
pbone = obj.pose.bones[bones['palm.02']]
pbone.rigify_type = ''
pbone.lock_location = (False, False, False)
pbone.lock_rotation = (False, True, True)
pbone.lock_rotation_w = False
pbone.lock_scale = (False, False, False)
pbone.rotation_mode = 'YXZ'
pbone = obj.pose.bones[bones['palm.01']]
pbone.rigify_type = 'palm'
pbone.lock_location = (False, False, False)
pbone.lock_rotation = (False, True, True)
pbone.lock_rotation_w = False
pbone.lock_scale = (False, False, False)
pbone.rotation_mode = 'YXZ'
pbone.rigify_parameters.add()
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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