blender/release/scripts/modules/rigify/palm_curl.py
2010-08-27 00:05:00 +00:00

271 lines
8.6 KiB
Python

# ##### 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.use_connect = 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.use_connect = 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.use_connect = 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.use_connect = 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.use_connect = 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.use_connect = 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.use_connect = 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_from_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(fcurve.modifiers[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].layers = list(arm.bones[bone_definition[1]].layers)
# no blending the result of this
return None