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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# ##### END GPL LICENSE BLOCK #####
# <pep8 compliant>
import bpy
from rigify import RigifyError, get_layer_dict
from rigify_utils import bone_class_instance, copy_bone_simple
from rna_prop_ui import rna_idprop_ui_prop_get
# not used, defined for completeness
METARIG_NAMES = ("body", "head")
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('body')
bone.head[:] = 0.0000, -0.0276, -0.1328
bone.tail[:] = 0.0000, -0.0170, -0.0197
bone.roll = 0.0000
bone.connected = False
bone = arm.edit_bones.new('head')
bone.head[:] = 0.0000, -0.0170, -0.0197
bone.tail[:] = 0.0000, 0.0726, 0.1354
bone.roll = 0.0000
bone.connected = True
bone.parent = arm.edit_bones['body']
bone = arm.edit_bones.new('neck.01')
bone.head[:] = 0.0000, -0.0170, -0.0197
bone.tail[:] = 0.0000, -0.0099, 0.0146
bone.roll = 0.0000
bone.connected = False
bone.parent = arm.edit_bones['head']
bone = arm.edit_bones.new('neck.02')
bone.head[:] = 0.0000, -0.0099, 0.0146
bone.tail[:] = 0.0000, -0.0242, 0.0514
bone.roll = 0.0000
bone.connected = True
bone.parent = arm.edit_bones['neck.01']
bone = arm.edit_bones.new('neck.03')
bone.head[:] = 0.0000, -0.0242, 0.0514
bone.tail[:] = 0.0000, -0.0417, 0.0868
bone.roll = 0.0000
bone.connected = True
bone.parent = arm.edit_bones['neck.02']
bone = arm.edit_bones.new('neck.04')
bone.head[:] = 0.0000, -0.0417, 0.0868
bone.tail[:] = 0.0000, -0.0509, 0.1190
bone.roll = 0.0000
bone.connected = True
bone.parent = arm.edit_bones['neck.03']
bone = arm.edit_bones.new('neck.05')
bone.head[:] = 0.0000, -0.0509, 0.1190
bone.tail[:] = 0.0000, -0.0537, 0.1600
bone.roll = 0.0000
bone.connected = True
bone.parent = arm.edit_bones['neck.04']
bpy.ops.object.mode_set(mode='OBJECT')
pbone = obj.pose.bones['head']
pbone['type'] = 'neck_flex'
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
head = arm.bones[orig_bone_name]
body = head.parent
children = head.children
if len(children) != 1:
raise RigifyError("expected the head bone '%s' to have only 1 child." % orig_bone_name)
child = children[0]
bone_definition = [body.name, head.name, child.name]
bone_definition.extend([child.name for child in child.children_recursive_basename])
return bone_definition
def main(obj, bone_definition, base_names, options):
from Mathutils import Vector
arm = obj.data
# Initialize container classes for convenience
mt = bone_class_instance(obj, ["body", "head"]) # meta
mt.body = bone_definition[0]
mt.head = bone_definition[1]
mt.update()
neck_chain = bone_definition[2:]
mt_chain = bone_class_instance(obj, [("neck_%.2d" % (i + 1)) for i in range(len(neck_chain))]) # 99 bones enough eh?
for i, attr in enumerate(mt_chain.attr_names):
setattr(mt_chain, attr, neck_chain[i])
mt_chain.update()
neck_chain_basename = base_names[mt_chain.neck_01_e.name].split(".")[0]
neck_chain_segment_length = mt_chain.neck_01_e.length
ex = bone_class_instance(obj, ["head", "head_hinge", "neck_socket", "head_ctrl"]) # hinge & extras
# Add the head hinge at the bodys location, becomes the parent of the original head
# apply everything to this copy of the chain
ex_chain = mt_chain.copy(base_names=base_names)
ex_chain.neck_01_e.parent = mt_chain.neck_01_e.parent
# Copy the head bone and offset
ex.head_e = copy_bone_simple(arm, mt.head, "MCH_%s" % base_names[mt.head], parent=True)
ex.head_e.connected = False
ex.head = ex.head_e.name
# offset
head_length = ex.head_e.length
ex.head_e.head.y += head_length / 2.0
ex.head_e.tail.y += head_length / 2.0
# Yes, use the body bone but call it a head hinge
ex.head_hinge_e = copy_bone_simple(arm, mt.body, "MCH_%s_hinge" % base_names[mt.head], parent=False)
ex.head_hinge_e.connected = False
ex.head_hinge = ex.head_hinge_e.name
ex.head_hinge_e.head.y += head_length / 4.0
ex.head_hinge_e.tail.y += head_length / 4.0
# Insert the neck socket, the head copys this loation
ex.neck_socket_e = arm.edit_bones.new("MCH-%s_socked" % neck_chain_basename)
ex.neck_socket = ex.neck_socket_e.name
ex.neck_socket_e.connected = False
ex.neck_socket_e.parent = mt.body_e
ex.neck_socket_e.head = mt.head_e.head
ex.neck_socket_e.tail = mt.head_e.head - Vector(0.0, neck_chain_segment_length / 2.0, 0.0)
ex.neck_socket_e.roll = 0.0
# copy of the head for controling
ex.head_ctrl_e = copy_bone_simple(arm, mt.head, base_names[mt.head])
ex.head_ctrl = ex.head_ctrl_e.name
ex.head_ctrl_e.parent = ex.head_hinge_e
for i, attr in enumerate(ex_chain.attr_names):
neck_e = getattr(ex_chain, attr + "_e")
# dont store parent names, re-reference as each chain bones parent.
neck_e_parent = arm.edit_bones.new("MCH-rot_%s" % base_names[getattr(mt_chain, attr)])
neck_e_parent.head = neck_e.head
neck_e_parent.tail = neck_e.head + (mt.head_e.vector.normalize() * neck_chain_segment_length / 2.0)
neck_e_parent.roll = mt.head_e.roll
orig_parent = neck_e.parent
neck_e.connected = False
neck_e.parent = neck_e_parent
neck_e_parent.connected = False
if i == 0:
neck_e_parent.parent = mt.body_e
else:
neck_e_parent.parent = orig_parent
bpy.ops.object.mode_set(mode='OBJECT')
mt.update()
mt_chain.update()
ex_chain.update()
ex.update()
# Simple one off constraints, no drivers
con = ex.head_ctrl_p.constraints.new('COPY_LOCATION')
con.target = obj
con.subtarget = ex.neck_socket
con = ex.head_p.constraints.new('COPY_ROTATION')
con.target = obj
con.subtarget = ex.head_ctrl
# driven hinge
prop = rna_idprop_ui_prop_get(ex.head_ctrl_p, "hinge", create=True)
ex.head_ctrl_p["hinge"] = 0.0
prop["soft_min"] = 0.0
prop["soft_max"] = 1.0
con = ex.head_hinge_p.constraints.new('COPY_ROTATION')
con.name = "hinge"
con.target = obj
con.subtarget = mt.body
# add driver
hinge_driver_path = ex.head_ctrl_p.path_to_id() + '["hinge"]'
fcurve = con.driver_add("influence", 0)
driver = fcurve.driver
tar = driver.targets.new()
driver.type = 'AVERAGE'
tar.name = "var"
tar.id_type = 'OBJECT'
tar.id = obj
tar.data_path = hinge_driver_path
#mod = fcurve_driver.modifiers.new('GENERATOR')
mod = fcurve.modifiers[0]
mod.poly_order = 1
mod.coefficients[0] = 1.0
mod.coefficients[1] = -1.0
head_driver_path = ex.head_ctrl_p.path_to_id()
target_names = [("b%.2d" % (i + 1)) for i in range(len(neck_chain))]
ex.head_ctrl_p["bend_tot"] = 0.0
fcurve = ex.head_ctrl_p.driver_add('["bend_tot"]', 0)
driver = fcurve.driver
driver.type = 'SUM'
fcurve.modifiers.remove(0) # grr dont need a modifier
for i in range(len(neck_chain)):
tar = driver.targets.new()
tar.name = target_names[i]
tar.id_type = 'OBJECT'
tar.id = obj
tar.data_path = head_driver_path + ('["bend_%.2d"]' % (i + 1))
for i, attr in enumerate(ex_chain.attr_names):
neck_p = getattr(ex_chain, attr + "_p")
neck_p.lock_location = True, True, True
neck_p.lock_location = True, True, True
neck_p.lock_rotations_4d = True
# Add bend prop
prop_name = "bend_%.2d" % (i + 1)
prop = rna_idprop_ui_prop_get(ex.head_ctrl_p, prop_name, create=True)
ex.head_ctrl_p[prop_name] = 1.0
prop["soft_min"] = 0.0
prop["soft_max"] = 1.0
# add parent constraint
neck_p_parent = neck_p.parent
# add constraint
con = neck_p_parent.constraints.new('COPY_ROTATION')
con.name = "Copy Rotation"
con.target = obj
con.subtarget = ex.head
con.owner_space = 'LOCAL'
con.target_space = 'LOCAL'
fcurve = con.driver_add("influence", 0)
driver = fcurve.driver
driver.type = 'SCRIPTED'
driver.expression = "bend/bend_tot"
fcurve.modifiers.remove(0) # grr dont need a modifier
# add target
tar = driver.targets.new()
tar.name = "bend_tot"
tar.id_type = 'OBJECT'
tar.id = obj
tar.data_path = head_driver_path + ('["bend_tot"]')
tar = driver.targets.new()
tar.name = "bend"
tar.id_type = 'OBJECT'
tar.id = obj
tar.data_path = head_driver_path + ('["%s"]' % prop_name)
# finally constrain the original bone to this one
orig_neck_p = getattr(mt_chain, attr + "_p")
con = orig_neck_p.constraints.new('COPY_ROTATION')
con.target = obj
con.subtarget = neck_p.name
# last step setup layers
layers = get_layer_dict(options)
lay = layers["extra"]
for attr in ex_chain.attr_names:
getattr(ex_chain, attr + "_b").layer = lay
for attr in ex.attr_names:
getattr(ex, attr + "_b").layer = lay
# no blending the result of this
return None
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