blender/release/scripts/modules/rigify/neck_flex.py
Nathan Vegdahl c54d54e8ae Rigify:
- Added two driven-shape-key rig types that create and drive shape keys on a mesh/meshes based on the distance or rotation difference between two bones.
- Fixed bug in finger curl rig type where secondary finger controls were not created.  Finger type can also now (optionally) have a hinge switch (useful when using it for wings).
- Changed the blending system in rigify_utils to use copy_transforms constraints instead of copy_loc+copy_rot.
- Finished the quadruped leg type.  Now has both ik and fk control and ik/fk switching.  Also uses a rotating bone to control the knee direction instead of a pole target (seems to work more consistently for quadruped setups).  There's still one annoying bug regarding foot roll, but it's not blocking.  I'll track it down later.
- Mouth rig now creates corrective shape keys on the face mesh for dealing with mouth corners when they spread open.
- Biped arm and leg types now cause mesh to scale when you scale the fk controls.
- Misc improvements to the rig types.
2010-01-19 19:07:09 +00:00

350 lines
12 KiB
Python

# ##### BEGIN GPL LICENSE BLOCK #####
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# <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 deform(obj, definitions, base_names, options):
for org_bone_name in definitions[2:]:
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):
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
deform(obj, bone_definition, base_names, options)
bpy.ops.object.mode_set(mode='OBJECT')
mt.update()
mt_chain.update()
ex_chain.update()
ex.update()
# Axis locks
ex.head_ctrl_p.lock_location = True, True, True
# 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
var = driver.variables.new()
driver.type = 'AVERAGE'
var.name = "var"
var.targets[0].id_type = 'OBJECT'
var.targets[0].id = obj
var.targets[0].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)):
var = driver.variables.new()
var.name = target_names[i]
var.targets[0].id_type = 'OBJECT'
var.targets[0].id = obj
var.targets[0].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
var = driver.variables.new()
var.name = "bend_tot"
var.targets[0].id_type = 'OBJECT'
var.targets[0].id = obj
var.targets[0].data_path = head_driver_path + ('["bend_tot"]')
var = driver.variables.new()
var.name = "bend"
var.targets[0].id_type = 'OBJECT'
var.targets[0].id = obj
var.targets[0].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
# Set the head control's custom shape to use the last
# org neck bone for its transform
ex.head_ctrl_p.custom_shape_transform = obj.pose.bones[bone_definition[len(bone_definition)-1]]
# last step setup layers
if "ex_layer" in options:
layer = [n==options["ex_layer"] for n in range(0,32)]
else:
layer = list(arm.bones[bone_definition[1]].layer)
for attr in ex_chain.attr_names:
getattr(ex_chain, attr + "_b").layer = layer
for attr in ex.attr_names:
getattr(ex, attr + "_b").layer = layer
layer = list(arm.bones[bone_definition[1]].layer)
ex.head_ctrl_b.layer = layer
# no blending the result of this
return None