1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
|
# ##### 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_utils import copy_bone_simple, get_side_name
from rna_prop_ui import rna_idprop_ui_prop_get
# 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('hand')
bone.head[:] = 0.0004, -0.0629, 0.0000
bone.tail[:] = 0.0021, -0.0209, 0.0000
bone.roll = 0.0000
bone.connected = False
bone = arm.edit_bones.new('palm.03')
bone.head[:] = -0.0000, 0.0000, 0.0000
bone.tail[:] = 0.0025, 0.0644, -0.0065
bone.roll = -3.1396
bone.connected = False
bone.parent = arm.edit_bones['hand']
bone = arm.edit_bones.new('palm.02')
bone.head[:] = 0.0252, -0.0000, 0.0000
bone.tail[:] = 0.0324, 0.0627, -0.0065
bone.roll = -3.1357
bone.connected = False
bone.parent = arm.edit_bones['hand']
bone = arm.edit_bones.new('palm.01')
bone.head[:] = 0.0504, 0.0000, 0.0000
bone.tail[:] = 0.0703, 0.0508, -0.0065
bone.roll = -3.1190
bone.connected = False
bone.parent = arm.edit_bones['hand']
bone = arm.edit_bones.new('palm.04')
bone.head[:] = -0.0252, 0.0000, 0.0000
bone.tail[:] = -0.0286, 0.0606, -0.0065
bone.roll = 3.1386
bone.connected = False
bone.parent = arm.edit_bones['hand']
bone = arm.edit_bones.new('palm.05')
bone.head[:] = -0.0504, 0.0000, 0.0000
bone.tail[:] = -0.0669, 0.0534, -0.0065
bone.roll = 3.1239
bone.connected = False
bone.parent = arm.edit_bones['hand']
bone = arm.edit_bones.new('thumb')
bone.head[:] = 0.0682, -0.0148, 0.0000
bone.tail[:] = 0.1063, 0.0242, -0.0065
bone.roll = -3.0929
bone.connected = False
bone.parent = arm.edit_bones['hand']
bpy.ops.object.mode_set(mode='OBJECT')
pbone = obj.pose.bones['palm.01']
pbone['type'] = 'palm_curl'
def metarig_definition(obj, orig_bone_name):
'''
The bone given is the first in an array of siblings with a matching basename
sorted with pointer first, little finger last.
eg.
[pointer, middle, ring, pinky... ] # any number of fingers
'''
arm = obj.data
palm_bone = arm.bones[orig_bone_name]
palm_parent = palm_bone.parent
palm_base = palm_bone.basename
bone_definition = [bone.name for bone in palm_parent.children if bone.basename == palm_base]
bone_definition.sort()
bone_definition.reverse()
return [palm_parent.name] + bone_definition
def deform(obj, definitions, base_names, options):
for org_bone_name in definitions[1:]:
bpy.ops.object.mode_set(mode='EDIT')
# Create deform bone.
bone = copy_bone_simple(obj.data, org_bone_name, "DEF-%s" % base_names[org_bone_name], parent=True)
# Store name before leaving edit mode
bone_name = bone.name
# Leave edit mode
bpy.ops.object.mode_set(mode='OBJECT')
# Get the pose bone
bone = obj.pose.bones[bone_name]
# Constrain to the original bone
# XXX. Todo, is this needed if the bone is connected to its parent?
con = bone.constraints.new('COPY_TRANSFORMS')
con.name = "copy_loc"
con.target = obj
con.subtarget = org_bone_name
def main(obj, bone_definition, base_names, options):
arm = obj.data
children = bone_definition[1:]
# Make a copy of the pinky
# simply assume the pinky has the lowest name
pinky_ebone = arm.edit_bones[children[0]]
ring_ebone = arm.edit_bones[children[1]]
# FIXME, why split the second one?
base_name = base_names[pinky_ebone.name].rsplit('.', 2)[0]
control_ebone = copy_bone_simple(arm, pinky_ebone.name, base_name + get_side_name(base_names[pinky_ebone.name]), parent=True)
control_name = control_ebone.name
offset = (pinky_ebone.head - ring_ebone.head)
control_ebone.translate(offset)
deform(obj, bone_definition, base_names, options)
bpy.ops.object.mode_set(mode='OBJECT')
arm = obj.data
control_pbone = obj.pose.bones[control_name]
pinky_pbone = obj.pose.bones[children[0]]
control_pbone.rotation_mode = 'YZX'
control_pbone.lock_rotation = False, True, True
control_pbone.lock_location = True, True, True
driver_fcurves = pinky_pbone.driver_add("rotation_euler")
controller_path = control_pbone.path_to_id()
# add custom prop
control_pbone["spread"] = 0.0
prop = rna_idprop_ui_prop_get(control_pbone, "spread", create=True)
prop["soft_min"] = -1.0
prop["soft_max"] = 1.0
prop["min"] = -1.0
prop["max"] = 1.0
# *****
driver = driver_fcurves[0].driver
driver.type = 'AVERAGE'
var = driver.variables.new()
var.name = "x"
var.targets[0].id_type = 'OBJECT'
var.targets[0].id = obj
var.targets[0].data_path = controller_path + ".rotation_euler[0]"
# *****
driver = driver_fcurves[1].driver
driver.expression = "-x/4.0"
var = driver.variables.new()
var.name = "x"
var.targets[0].id_type = 'OBJECT'
var.targets[0].id = obj
var.targets[0].data_path = controller_path + ".rotation_euler[0]"
# *****
driver = driver_fcurves[2].driver
driver.expression = "(1.0-cos(x))-s"
for fcurve in driver_fcurves:
fcurve.modifiers.remove(0) # grr dont need a modifier
var = driver.variables.new()
var.name = "x"
var.targets[0].id_type = 'OBJECT'
var.targets[0].id = obj
var.targets[0].data_path = controller_path + ".rotation_euler[0]"
var = driver.variables.new()
var.name = "s"
var.targets[0].id_type = 'OBJECT'
var.targets[0].id = obj
var.targets[0].data_path = controller_path + '["spread"]'
for i, child_name in enumerate(children):
child_pbone = obj.pose.bones[child_name]
child_pbone.rotation_mode = 'YZX'
if child_name != children[-1] and child_name != children[0]:
# this is somewhat arbitrary but seems to look good
inf = i / (len(children) + 1)
inf = 1.0 - inf
inf = ((inf * inf) + inf) / 2.0
# used for X/Y constraint
inf_minor = inf * inf
con = child_pbone.constraints.new('COPY_ROTATION')
con.name = "Copy Z Rot"
con.target = obj
con.subtarget = children[0] # also pinky_pbone
con.owner_space = con.target_space = 'LOCAL'
con.use_x, con.use_y, con.use_z = False, False, True
con.influence = inf
con = child_pbone.constraints.new('COPY_ROTATION')
con.name = "Copy XY Rot"
con.target = obj
con.subtarget = children[0] # also pinky_pbone
con.owner_space = con.target_space = 'LOCAL'
con.use_x, con.use_y, con.use_z = True, True, False
con.influence = inf_minor
child_pbone = obj.pose.bones[children[-1]]
child_pbone.rotation_mode = 'QUATERNION'
# fix at the end since there is some trouble with tx info not being updated otherwise
def x_direction():
# NOTE: the direction of the Z rotation depends on which side the palm is on.
# we could do a simple side-of-x test but better to work out the direction
# the hand is facing.
from Mathutils import Vector
from math import degrees
child_pbone_01 = obj.pose.bones[children[0]].bone
child_pbone_02 = obj.pose.bones[children[1]].bone
rel_vec = child_pbone_01.head - child_pbone_02.head
x_vec = child_pbone_01.matrix.rotation_part() * Vector(1.0, 0.0, 0.0)
return degrees(rel_vec.angle(x_vec)) > 90.0
if x_direction(): # flip
driver.expression = "-(%s)" % driver.expression
# last step setup layers
arm.bones[control_name].layer = list(arm.bones[bone_definition[1]].layer)
# no blending the result of this
return None
|