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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 #####
# <pep8 compliant>
import bpy
from rna_prop_ui import rna_idprop_ui_prop_get
from Mathutils import Vector
from rigify import RigifyError
from rigify_utils import copy_bone_simple
#METARIG_NAMES = ("cpy",)
RIG_TYPE = "eye_balls"
def mark_actions():
for action in bpy.data.actions:
action.tag = True
def get_unmarked_action():
for action in bpy.data.actions:
if action.tag != True:
return action
return None
def add_action(name=None):
mark_actions()
bpy.ops.action.new()
action = get_unmarked_action()
if name is not None:
action.name = name
return action
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('Bone')
bone.head[:] = 0.0000, 0.0000, 0.0000
bone.tail[:] = 0.0000, 0.0000, 1.0000
bone.roll = 0.0000
bone.connected = False
bpy.ops.object.mode_set(mode='OBJECT')
pbone = obj.pose.bones['Bone']
pbone['type'] = 'copy'
def metarig_definition(obj, orig_bone_name):
bone = obj.data.bones[orig_bone_name]
chain = []
try:
chain += [bone.parent.name, bone.name]
except AttributeError:
raise RigifyError("'%s' rig type requires a parent (bone: %s)" % (RIG_TYPE, orig_bone_name))
return chain
def deform(obj, definitions, base_names, options):
bpy.ops.object.mode_set(mode='EDIT')
eb = obj.data.edit_bones
pb = obj.pose.bones
# Get list of eyes
if "eyes" in options:
eye_base_names = options["eyes"].replace(" ", "").split(",")
else:
eye_base_names = []
# Get their ORG- names
eyes = []
for name in eye_base_names:
eyes += ["ORG-"+name]
# Duplicate the eyes to make deformation bones
def_eyes = [] # def/org pairs
for eye in eyes:
def_eyes += [(copy_bone_simple(obj.data, eye, "DEF-"+base_names[eye], parent=True).name, eye)]
bpy.ops.object.mode_set(mode='OBJECT')
# Constraints
for eye in def_eyes:
con = pb[eye[0]].constraints.new('COPY_TRANSFORMS')
con.target = obj
con.subtarget = eye[1]
return (None,)
def control(obj, definitions, base_names, options):
bpy.ops.object.mode_set(mode='EDIT')
eb = obj.data.edit_bones
bb = obj.data.bones
pb = obj.pose.bones
head = definitions[0]
eye_target = definitions[1]
# Get list of eyes
if "eyes" in options:
eye_base_names = options["eyes"].replace(" ", "").split(",")
else:
eye_base_names = []
# Get their ORG- names
eyes = []
for name in eye_base_names:
eyes += ["ORG-"+name]
# Get the average position of the eyes
center = Vector(0,0,0)
for eye in eyes:
center += eb[eye].head
if len(eyes) != 0:
center /= len(eyes)
# Get the average length of the eyes
length = 0.0
for eye in eyes:
length += eb[eye].length
if len(eyes) == 0:
length = 1.0
else:
length /= len(eyes)
# Make the mind's eye
minds_eye = copy_bone_simple(obj.data, eye_target, "MCH-"+base_names[eye_target]+".mind", parent=True).name
eb[minds_eye].head = center
eb[minds_eye].tail = eb[eye_target].head
eb[minds_eye].roll = 0.0
eb[minds_eye].length = length
# Create org/copy/control eye sets
eye_sets = []
for eye in eyes:
copy = copy_bone_simple(obj.data, minds_eye, "MCH-"+base_names[eye]+".cpy", parent=True).name
eb[copy].translate(eb[eye].head - eb[copy].head)
eb[copy].parent = eb[eye].parent
control = copy_bone_simple(obj.data, eye, base_names[eye], parent=True).name
eb[control].parent = eb[copy]
eye_sets += [(eye, copy, control)]
# Bones for parent/free switch for eye target
target_ctrl = copy_bone_simple(obj.data, eye_target, base_names[eye_target], parent=True).name
parent = copy_bone_simple(obj.data, head, "MCH-eye_target_parent", parent=False).name
eb[target_ctrl].parent = eb[parent]
bpy.ops.object.mode_set(mode='OBJECT')
# Axis locks
pb[target_ctrl].lock_scale = False, True, True
# Add eye_spread action if it doesn't already exist
action_name = "eye_spread"
if action_name in bpy.data.actions:
spread_action = bpy.data.actions[action_name]
else:
spread_action = add_action(name=action_name)
# Add free property
prop_name = "free"
prop = rna_idprop_ui_prop_get(pb[target_ctrl], prop_name, create=True)
pb[target_ctrl][prop_name] = 0.0
prop["soft_min"] = 0.0
prop["soft_max"] = 1.0
prop["min"] = 0.0
prop["max"] = 1.0
free_driver_path = pb[target_ctrl].path_to_id() + '["free"]'
# Constraints
# Mind's eye tracks eye target control
con = pb[minds_eye].constraints.new('DAMPED_TRACK')
con.target = obj
con.subtarget = target_ctrl
# Parent copies transforms of head
con = pb[parent].constraints.new('COPY_TRANSFORMS')
con.target = obj
con.subtarget = head
fcurve = con.driver_add("influence", 0)
driver = fcurve.driver
driver.type = 'AVERAGE'
mod = fcurve.modifiers[0]
mod.coefficients[0] = 1.0
mod.coefficients[1] = -1.0
var = driver.variables.new()
var.name = "free"
var.targets[0].id_type = 'OBJECT'
var.targets[0].id = obj
var.targets[0].data_path = free_driver_path
# Eye set's constraints
for eye in eye_sets:
# Org copies transforms of control
con = pb[eye[0]].constraints.new('COPY_TRANSFORMS')
con.target = obj
con.subtarget = eye[2]
# Copy copies rotation of mind's eye
con = pb[eye[1]].constraints.new('COPY_ROTATION')
con.target = obj
con.subtarget = minds_eye
# Control gets action constraint for eye spread
con = pb[eye[2]].constraints.new('ACTION')
con.target = obj
con.subtarget = target_ctrl
con.action = spread_action
con.transform_channel = 'SCALE_X'
con.start_frame = -20
con.end_frame = 20
con.minimum = 0.0
con.maximum = 2.0
con.target_space = 'LOCAL'
# Set layers
#layer = list(bb[definitions[2]].layer)
#bb[lid1].layer = layer
#bb[lid2].layer = layer
#bb[lid3].layer = layer
#bb[lid4].layer = layer
#bb[lid5].layer = layer
#bb[lid6].layer = layer
#bb[lid7].layer = layer
#bb[lid8].layer = layer
return (None,)
def main(obj, bone_definition, base_names, options):
# Create control rig
control(obj, bone_definition, base_names, options)
# Create deform rig
deform(obj, bone_definition, base_names, options)
return (None,)
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