def _makeRig(self, namer):
jntCnt = self.options.getValue('numJnts')
ikCtlCnt = self.options.getValue('numIkCtls')
jntToks = self.__getToks(bndJnts=True)
ctlToks = self.__getToks(ikCtls=True)
bndJnts = [namer(t, r='bnd') for t in jntToks]
MC.makeIdentity(bndJnts, apply=True, r=1, t=1, s=1)
namer.setTokens(r='fk')
fkCtls = [namer(t, r='fk') for t in jntToks[1:]]
fkCtls = control.setupFkCtls(bndJnts[1:], fkCtls, jntToks[1:], namer)
for ctl in fkCtls:
control.setLockTag(ctl, uk=['rx', 'ry', 'rz'])
for i, tok in enumerate(jntToks):
self.setPlugNode(tok, bndJnts[i])
namer.setTokens(r='ik')
ikJnts = utils.dupJntList(bndJnts[1:], jntToks[1:], namer)
MC.setAttr('%s.v' % ikJnts[0], 0)
ikCtls = []
for tok in ctlToks:
n = namer(tok, r='ik')
utils.insertNodeAbove(n)
control.setLockTag(n, uk=['r', 't'])
ikCtls.append(n)
self.setPlugNode(tok, n)
#doubling the cvs on the end allows us to build a curve with only 2 controls,
#but causes popping otherwise. Only use if needed
doubleEndPoints = False
if ikCtlCnt == 1:
doubleEndPoints = True
crv = curveFromNodes(ikCtls, name=namer('ikspline_crv'), doubleEndPoints=doubleEndPoints )
srf = surfaceFromNodes(ikCtls, name=namer('ikspline_srf'), doubleEndPoints=doubleEndPoints)
bindControlsToShape(ikCtls, crv, doubleEndPoints=doubleEndPoints)
bindControlsToShape(ikCtls, srf, doubleEndPoints=doubleEndPoints)
ikNode = setupSpineIkNode(ikCtls, ikJnts, nodeName='splinik', namer=namer,
crv=crv, surf=srf)
self.setNodeCateogry(ikNode, 'dnt')
MC.setAttr("%s.v" % ikNode, 0)
#parent the fk control to the ik control
MC.parent(fkCtls[0], ikCtls[0])
utils.fixInverseScale(fkCtls[0])
#constrain the pelvis jnt to the first ik control
MC.parentConstraint(ikCtls[0], bndJnts[0])
MC.scaleConstraint(ikCtls[0], bndJnts[0])
#tag this node so the master connect the uniform scale
core.Root.tagInputScaleAttr(ikNode, 'inputScaleAmt')
MC.addAttr(ikCtls[-1], ln='fkIk', dv=1, k=1, min=0, max=1)
MC.addAttr(ikCtls[-1], ln='stretchAmt', dv=0, k=1, min=0, max=1)
MC.addAttr(ikCtls[-1], ln='evenStretchAmt', dv=0, k=1, min=0, max=1)
control.setLockTag(ikCtls[-1], uk=['fkIk', 'stretchAmt', 'evenStretchAmt'])
MC.connectAttr('%s.stretchAmt' % ikCtls[-1], '%s.stretchAmt' % ikNode)
MC.connectAttr('%s.evenStretchAmt' % ikCtls[-1], '%s.evenStretchAmt' % ikNode)
#parent the ikCtls
parentToFirst = []
parentToLast = []
numParentedCtlsPerSide = (ikCtlCnt/2)-1
parentToFirst = ikCtls[1:1+numParentedCtlsPerSide]
parentToFirst = ikCtls[-1:-1-numParentedCtlsPerSide- ikCtlCnt % 2]
_logger.debug('parentToFirst: %s' % parentToFirst)
_logger.debug('parentToLast: %s' % parentToLast)
for node in parentToFirst:
zero = MC.listRelatives(node, parent=1)[0]
MC.parent(zero, ikCtls[0])
for node in parentToLast:
zero = MC.listRelatives(node, parent=1)[0]
MC.parent(zero, ikCtls[-1])
ikReverse = utils.blendJointChains(fkCtls, ikJnts, bndJnts[1:], '%s.fkIk' % ikCtls[-1], namer)
for ctl in fkCtls:
MC.connectAttr('%s.outputX' % (ikReverse), '%s.v' % ctl)
for ctl in ikCtls[1:-1]:
MC.connectAttr('%s.fkIk' % (ikCtls[-1]), '%s.v' % ctl)
def setupSpineIkNode(ctlList, jntList, surf=None, crv=None, nodeName='beings_splineik', namer=None):
"""
Create an ik spline system using controls in the ctlList that will drive jnts in jntList
"""
if not namer:
namer = utils.Namer('char', 'cn', 'spine')
if not surf:
surf = surfaceFromNodes(ctlList)
surf = getShape(surf)
if not crv:
crv = curveFromNodes(ctlList)
crv = getShape(crv)
ikNode = MC.createNode('transform', name=namer(nodeName))
MC.parent(MC.listRelatives(surf, parent=1)[0], ikNode)
MC.parent(MC.listRelatives(crv, parent=1)[0], ikNode)
namer.setTokens(r='ik')
names = ['stretch_%s' % ascii_lowercase[i] for i in range(len(jntList))]
stretchJnts = utils.dupJntList(jntList, names, namer)
#rebuild the curve so that we get more even parameterization for 'even stretch'
#joints. Use a 7 degree curve so we can build with a single span
evenStretchCrv = MC.rebuildCurve(MC.listRelatives(crv, parent=1)[0],
ch=1, rpo=0, rt=0, end=1, kr=2, kcp=0, kep=1, kt=0, s=1, d=7, tol=0.01)[0]
evenStretchCrv = MC.rename(evenStretchCrv, "%s_evenstretch" % crv)
MC.parent(evenStretchCrv, ikNode)
evenStretchCrv = getShape(evenStretchCrv)
nodes = {'posi':[], 'cps': [], 'posiUp':[], 'xform':[], 'xformUp':[]}
#for each joint, get the param at the rebuilt curve. Use this position to get
#the closest point on the surface, then get the u and v values at that surface
#point.
for i, jnt in enumerate(stretchJnts):
suff = ascii_lowercase[i]
#get point on rebuild curve near each jnt
poci = MC.createNode('pointOnCurveInfo', n='%s_%s_evenstretch_poci' % (ikNode, suff))
MC.connectAttr("%s.worldSpace[0]" % evenStretchCrv, '%s.ic' % poci)
MC.setAttr('%s.pr' % poci, closestParamOnCurve(jnt, evenStretchCrv))
#get closest point on surface
cps = MC.createNode("closestPointOnSurface", n='%s_%s_evenstretch_cps' % (ikNode, suff))
MC.connectAttr("%s.worldSpace[0]" % surf, '%s.is' % cps)
MC.connectAttr("%s.p" % poci, "%s.ip" % cps)
nodes['cps'].append(cps)
MC.addAttr(ikNode, ln='evenStretchAmt', min=0, max=1, k=1)
for i, jnt in enumerate(stretchJnts):
#create a point on surface info node at each point
suff = ascii_lowercase[i]
posi = MC.createNode('pointOnSurfaceInfo', n='%s_%s_posi' % (ikNode, suff))
posiUp = MC.createNode('pointOnSurfaceInfo', n='%s_%s_up_posi' % (ikNode, suff))
MC.connectAttr('%s.worldSpace[0]' % surf, '%s.is' % posi)
MC.connectAttr('%s.worldSpace[0]' % surf, '%s.is' % posiUp)
u, v = closestParamOnSurface(jnt, surf)
for node in [posi, posiUp]:
blender = MC.createNode("blendColors", name='%s_%s_evenstretch_blc' % (ikNode, suff))
MC.connectAttr('%s.evenStretchAmt' % ikNode, '%s.blender' % blender)
#as the evenStretchAmt increases, shift towards the u value of the even stretch crv
MC.connectAttr("%s.u" % nodes['cps'][i], "%s.c1r" % blender)
MC.setAttr("%s.c2r" % blender, u)
MC.connectAttr("%s.opr" % blender, '%s.u' % node)
MC.setAttr('%s.v' % posi, v)
MC.setAttr('%s.v' % posiUp, v-.25)
posXform = MC.createNode("transform", n='%s_%s_grp' % (ikNode, suff))
upXform = MC.createNode("transform", n='%s_%s_up_grp' % (ikNode, suff))
MC.parent(posXform, ikNode)
MC.parent(upXform, ikNode)
MC.connectAttr("%s.p" % posi, "%s.t" % posXform)
MC.connectAttr("%s.p" % posiUp, "%s.t" % upXform)
MC.pointConstraint(posXform, jnt)
utils.fixJointConstraints(posXform)
nodes['posi'].append(posi)
nodes['posiUp'].append(posiUp)
nodes['xform'].append(posXform)
nodes['xformUp'].append(upXform)
#now that all the xforms are created, aim them at each other and
#measure the start stretch distance
MC.addAttr(ikNode, ln='inputScaleAmt', dv=1, k=1)
for i in range(len(stretchJnts)-1):
suff = ascii_lowercase[i]
nextSuff = ascii_lowercase[i+1]
dst = MC.createNode('distanceBetween', n='%s_%s_to_%s_dist' % \
(ikNode,suff, nextSuff))
MC.connectAttr("%s.p" % nodes['posi'][i], '%s.p1' % dst)
MC.connectAttr("%s.p" % nodes['posi'][i+1], '%s.p2' % dst)
MC.addAttr(ikNode, ln = "origDistToNext_%s" % suff, h=False,
dv=MC.getAttr("%s.d" % dst))
stretchMdn = MC.createNode("multiplyDivide",
n='%s_%s_stretch_mdn' % (ikNode, suff))
MC.connectAttr('%s.d' % dst, '%s.input1X' % stretchMdn)
MC.connectAttr('%s.origDistToNext_%s' % (ikNode, suff),
'%s.input2X' % stretchMdn)
MC.setAttr('%s.operation' % stretchMdn, 2)
stretchSclMdn = MC.createNode("multiplyDivide",
n='%s_%s_stretch_scl_mdn' % (ikNode, suff))
MC.setAttr('%s.operation' % stretchSclMdn, 2)
MC.connectAttr('%s.outputX' % stretchMdn, '%s.input1X' % stretchSclMdn)
MC.connectAttr('%s.inputScaleAmt' % ikNode, '%s.input2X' % stretchSclMdn)
MC.addAttr(ikNode, ln = "stretchAmt_%s" % suff, k=1)
MC.connectAttr('%s.outputX' % stretchSclMdn, '%s.stretchAmt_%s' \
% (ikNode, suff))
#connect stretch amount to joint scale
MC.connectAttr('%s.stretchAmt_%s' % (ikNode, suff),
'%s.sy' % stretchJnts[i])
#aim the xforms
MC.aimConstraint(nodes['xform'][i+1],
nodes['xform'][i],
aimVector=[0,1,0],
upVector=[1,0,0],
worldUpType='object',
worldUpObject=nodes['xformUp'][i])
MC.orientConstraint(nodes['xform'][i], stretchJnts[i])
utils.fixJointConstraints(stretchJnts[i])
utils.fixJointConstraints(nodes['xform'][i])
MC.orientConstraint(ctlList[-1], stretchJnts[-1])
utils.fixJointConstraints(stretchJnts[-1])
nsJnts, nsPosJnts, esUps = setupIkSplineJnts(jntList, crv, surf, ikNode,
namer = namer,
nodeName='%s_ns' % nodeName,
tipCtl = ctlList[-1])
MC.addAttr(ikNode, ln='stretchAmt', min=0, max=1, dv=0, k=1)
utils.blendJointChains(nsJnts, stretchJnts, jntList, '%s.stretchAmt' % ikNode, namer)
MC.setAttr("%s.v" % nsJnts[0], 0)
MC.setAttr("%s.v" % stretchJnts[0], 0)
return ikNode
def setupIkSplineJnts(jntList, crv, surf, ikNode,
nodeName='beings_splineik', namer=None,
tipCtl=None):
"""
Setup a splineIk system, but use a nurbs surface to control orientation.
This allows full twist control along the length of the chain
@param jntList: the list of original joints; they will be duplicated
@param crv: the curve to use for the spline ik system
@param surf: the surface to use for the twist
@param namer: the namer to use for naming; a generic will be assigned if none provided
@param tipCtl: a control to use for orienting the last joint. If none provided,
it will be oriented to the plane
"""
if not namer:
namer = utils.Namer('char', 'cn', 'spine')
namer.setTokens(r='ik')
#use the splineik node to get joints to 'slip' alone the curve. These are intermediate
#joints, we're just using their position to get us a point on the nurbs surface so we
#can use the surface for orientation
jntNames = ['%s_pos_jnt_%s' % (nodeName, ascii_lowercase[i]) for i in range(len(jntList))]
splinePosJnts = utils.dupJntList(jntList, jntNames, namer)
for jnt in splinePosJnts:
control.setLockTag(jnt, uu=['t', 'r'])
#these are the actual joints that will be oriented and positioned correctly
jntNames = ['%s_jnt_%s' % (nodeName,ascii_lowercase[i]) for i in range(len(jntList))]
splineJnts = utils.dupJntList(jntList, jntNames, namer)
handle, ee = MC.ikHandle(solver='ikSplineSolver',
sj=splinePosJnts[0], ee=splinePosJnts[-1], curve=crv,
simplifyCurve=False, parentCurve=False, createCurve=False)
MC.parent(handle, ikNode)
xforms = []
ups = []
for i, jnt in enumerate(splinePosJnts):
dcm = MC.createNode('decomposeMatrix', n=namer('%s_splinejnt_dcm' % nodeName, alphaSuf=i))
cps = MC.createNode('closestPointOnSurface', n=namer('%s_splinejnt_cps' % nodeName, alphaSuf=i))
posi = MC.createNode('pointOnSurfaceInfo', n=namer('%s_splinejnt_posi' % nodeName, alphaSuf=i))
xform = MC.createNode('transform', n=namer('%s_splinejnt_grp' % nodeName, alphaSuf=i))
xformUp = MC.createNode('transform', n=namer('%s_splinejnt_up_grp' % nodeName, alphaSuf=i))
MC.parent(xform, ikNode)
MC.parent(xformUp, ikNode)
MC.connectAttr('%s.worldMatrix' % jnt, '%s.inputMatrix' % dcm)
MC.connectAttr("%s.worldSpace[0]" % surf, '%s.inputSurface' % cps)
MC.connectAttr("%s.outputTranslate" % dcm, "%s.ip" % cps)
MC.connectAttr("%s.p" % cps, "%s.t" % xform)
MC.connectAttr("%s.worldSpace[0]" % surf, '%s.inputSurface' % posi)
MC.connectAttr("%s.u" % cps, "%s.u" % posi)
MC.setAttr("%s.v" % cps, MC.getAttr("%s.v" % cps) + .1)
MC.connectAttr("%s.p" % posi, "%s.t" % xformUp)
xforms.append(xform)
ups.append(xformUp)
MC.pointConstraint(splinePosJnts[i], splineJnts[i])
for i in range(len(splinePosJnts)-1):
MC.aimConstraint(splinePosJnts[i+1],
xforms[i],
aimVector=[0,1,0],
upVector=[1,0,0],
worldUpType='object',
worldUpObject=ups[i])
utils.fixJointConstraints(xforms[i])
MC.orientConstraint(xforms[i], splineJnts[i])
utils.fixJointConstraints(splineJnts[i])
if tipCtl:
MC.orientConstraint(tipCtl, splineJnts[-1])
utils.fixJointConstraints(splineJnts[-1])
MC.setAttr("%s.v" % splinePosJnts[0], 0)
MC.setAttr("%s.v" % handle, 0)
return (splineJnts, splinePosJnts, ups)
def _makeRig(self, namer):
#gather the bind joints and fk controls that were built
bndJnts = []
fkCtls = []
for tok in self.__toks[:-1]:
fkCtl = namer(tok, r='fk')
if not MC.objExists(fkCtl):
raise RuntimeError('%s does not exist' % fkCtl)
fkCtls.append(fkCtl)
for tok in self.__toks:
jnt = namer(tok, r='bnd')
if not MC.objExists(jnt):
raise RuntimeError('%s does not exist' % jnt)
bndJnts.append(jnt)
if tok != 'hand_tip':
self.setPlugNode('bnd_%s' % tok, jnt)
MC.makeIdentity(bndJnts, apply=True, r=1, t=1, s=1)
ikCtl = namer('ctl', r='ik')
if not MC.objExists(ikCtl):
raise RuntimeError("cannot find '%s'" % ikCtl)
MC.makeIdentity(ikCtl, apply=True, r=1, s=1)
# o = utils.Orientation()
# side = self.options.getValue('side')
# if side == 'rt':
# o.setAxis('aim', 'negY')
# o.reorientJoints(bndJnts)
# MC.setAttr('%s.rx' % ikCtl,
# (MC.getAttr('%s.rx' % ikCtl) * -1))
# MC.setAttr('%s.rz' % ikCtl,
# (180 + MC.getAttr('%s.rz' % ikCtl) % 360))
side = self.options.getValue('side')
if side == 'rt':
o = utils.Orientation()
otherO = utils.Orientation()
otherO.setAxis('aim', 'posX')
otherO.setAxis('up', 'posY')
o.setAxis('aim', 'posX')
o.setAxis('up', 'negY')
origOrient = MC.getAttr('%s.jointOrient' % ikCtl)[0]
newOrient = o.newAngle(origOrient, origOrient=otherO)
MC.setAttr('%s.jointOrient' % ikCtl, *newOrient, type='double3')
fkCtls = control.setupFkCtls(bndJnts[:-1], fkCtls, self.__toks[:-1], namer)
for ctl in fkCtls:
control.setLockTag(ctl, uk=['r'])
namer.setTokens(r='ik')
ikJnts = utils.dupJntList(bndJnts, self.__toks, namer)
for jnt in ikJnts:
control.setLockTag(jnt, uu=['r', 't', 's'])
MC.setAttr('%s.v' % ikJnts[0], 0)
#keep the ik hand control rotated
par = MC.createNode('transform', n='%s_zero' % ikCtl)
utils.snap(ikCtl, par, orient=False)
MC.parent(ikCtl, par)
self.setNodeCateogry(par, 'ik')
MC.addAttr(ikCtl, ln='fkIk', min=0, max=1, dv=1, k=1)
fkIkRev = utils.blendJointChains(fkCtls, ikJnts[:-1], bndJnts[:-1],
'%s.fkIk' % ikCtl, namer)
control.setLockTag(ikCtl, uk=['t', 'r', 'fkIk'])
for ctl in fkCtls:
MC.connectAttr('%s.outputX' % fkIkRev, '%s.v' % ctl)
ikHandle, ikEff = MC.ikHandle(sj=ikJnts[0],
ee=ikJnts[2],
solver='ikRPsolver',
n=namer.name('ikh'))
MC.parent(ikHandle, ikCtl)
MC.setAttr('%s.v' % ikHandle, 0)
#setup pole vec for ik ctl
pv = namer('polevec', r='ik')
MC.setAttr('%s.r' % pv, 0, 0, 0, type='double3')
control.setLockTag(ikCtl, uk=['t'])
MC.poleVectorConstraint(pv, ikHandle)
MC.parent(utils.insertNodeAbove(pv), ikCtl)
#orient the hand to the ik control
handOrientJnt = MC.duplicate(ikJnts[2], rc=1, po=1)[0]
handOrientJnt = MC.rename(handOrientJnt, namer('handorient_space', r='ik'))
MC.parent(handOrientJnt, ikCtl)
MC.setAttr('%s.v' % handOrientJnt, 0)
MC.orientConstraint(handOrientJnt, ikJnts[2])
def _makeRig(self, namer):
#gather the bind joints and fk controls that were built
bndJnts = []
fkCtls = []
for tok in self.__toks[:-1]:
fkCtl = namer(tok, r='fk')
if not MC.objExists(fkCtl):
raise RuntimeError('%s does not exist' % fkCtl)
fkCtls.append(fkCtl)
for tok in self.__toks:
jnt = namer(tok, r='bnd')
if not MC.objExists(jnt):
raise RuntimeError('%s does not exist' % jnt)
bndJnts.append(jnt)
MC.makeIdentity(bndJnts, apply=True, r=1, t=1, s=1)
for jnt in bndJnts:
control.setLockTag(jnt, uu=['t', 'r', 's'])
for i, tok in enumerate(self.__toks[:3]):
self.setPlugNode('bnd_%s' % tok, bndJnts[i])
o = utils.Orientation()
side = self.options.getValue('side')
if side == 'rt':
o.setAxis('aim', 'negY')
o.reorientJoints(bndJnts)
fkCtls = control.setupFkCtls(bndJnts[:-1], fkCtls, self.__toks[:-1], namer)
for ctl in fkCtls:
control.setLockTag(ctl, uk=['r'])
namer.setTokens(r='ik')
ikJnts = utils.dupJntList(bndJnts, self.__toks, namer)
MC.setAttr('%s.v' % ikJnts[0], 0)
ikCtl = namer('heel_ctl', r='ik')
if not MC.objExists(ikCtl):
raise RuntimeError("Cannot find '%s'" % ikCtl)
MC.addAttr(ikCtl, ln='fkIk', min=0, max=1, dv=1, k=1)
fkIkRev = utils.blendJointChains(fkCtls, ikJnts[:-1], bndJnts[:-1],
'%s.fkIk' % ikCtl, namer)
for ctl in fkCtls:
MC.connectAttr('%s.outputX' % fkIkRev, '%s.v' % ctl)
ikHandle, ikEff = MC.ikHandle(sj=ikJnts[0],
ee=ikJnts[2],
solver='ikRPsolver',
n=namer.name('ikh'))
#use the no-flip setup
xp = utils.getXProductFromNodes(ikJnts[1], ikJnts[0], ikJnts[2])
sp = MC.xform(ikJnts[0], q=1, ws=1, t=1)
l = MC.spaceLocator()[0]
MC.xform(l, t=[sp[0] + xp[0], sp[1]+xp[1], sp[2]+xp[2]], ws=1)
MC.delete(MC.poleVectorConstraint(l, ikHandle))
MC.delete(l)
MC.setAttr("%s.twist" % ikHandle, 90)
MC.addAttr(ikCtl, ln='twist', dv=0, k=1)
control.setLockTag(ikCtl, uk=['twist'])
pma = MC.createNode('plusMinusAverage', n=namer('twist_pma'))
MC.connectAttr("%s.twist" % ikCtl, "%s.input1D[0]" % pma)
MC.setAttr("%s.input1D[1]" % pma, 90)
MC.connectAttr("%s.output1D" % pma, "%s.twist" % ikHandle)
del l, sp, xp
##set up the reverse foot
#create the ik hanldes
ikHandles = {}
names = ['ankle', 'ball', 'toe', 'toetip']
for i in range(len(names)-1):
startIndex = self.__toks.index(names[i])
endIndex = self.__toks.index(names[i+1])
start = names[i]
end = names[i+1]
name = namer.name(d='revfoot_%s_to_%s_ikh' % (start, end),
r='ik')
handle = MC.ikHandle(sj=ikJnts[startIndex], ee=ikJnts[endIndex], n=name, sol='ikSCsolver')
ikHandles[names[i+1]] = handle[0]
MC.rename(handle[1], name + '_eff')
#setup the toe control to have an inverse pivot
toeCtl = namer('toe_ctl', r='ik')
MC.connectAttr("%s.fkIk" % ikCtl, "%s.v" % toeCtl)
MC.parent(toeCtl, ikCtl)
utils.insertNodeAbove(toeCtl)
toeCtlInv = MC.createNode('transform', n = namer('toe_inv', r='ik'))
MC.parent(toeCtlInv, toeCtl)
toeCtlInvMdn = MC.createNode('multiplyDivide', n=namer('toe_inv_mdn', r='ik'))
MC.connectAttr('%s.t' % toeCtl, '%s.input1' % toeCtlInvMdn)
MC.setAttr('%s.input2' % toeCtlInvMdn, -1, -1, -1, type='double3')
MC.connectAttr('%s.output' % toeCtlInvMdn, '%s.t' % toeCtlInv)
#setup the rev foot joints
revFootJnts = {}
revFkToks = ['heel', 'toetip', 'toe', 'ball', 'ankle']
positions = [ikCtl, bndJnts[-1], bndJnts[-2], bndJnts[-3], bndJnts[-4]]
MC.select(cl=1)
for i in range(len(revFkToks)):
tok = revFkToks[i]
posNode = positions[i]
pos = MC.xform(posNode, q=1, t=1, ws=1)
if i == 1:
pos[1] = MC.xform(positions[0], q=1, t=1, ws=1)[1]
j = MC.joint(name=namer('%s_revfoot_jnt' % tok, r='ik'),
p = pos )
revFootJnts[tok] = j
if i == 0:
MC.setAttr('%s.v' % j, 0)
del i, j
#orient the joints to aim down pos y and up axis along the plane formed by
#the upper leg
xp = utils.getXProductFromNodes(ikJnts[1], ikJnts[0], ikJnts[2])
for jnt in revFootJnts.values():
utils.orientJnt(jnt, aimVec=[0,1,0], upVec=[1,0,0], worldUpVec=[xp[0],0,xp[2]])
del jnt, xp
MC.parent(revFootJnts['heel'], toeCtlInv)
MC.parent(ikHandles['toetip'], revFootJnts['toetip'])
MC.parent(ikHandles['toe'], revFootJnts['toe'])
MC.parent(ikHandles['ball'], revFootJnts['ball'])
MC.parent(ikHandle, revFootJnts['ankle'])
#setup the foot roll
self.__setupFootRoll(ikCtl, revFootJnts, namer)
control.setLockTag(toeCtl, uk=['r', 't'])
control.setLockTag(ikCtl, uk=['r', 't', 'fkIk'])
self.setNodeCateogry(utils.insertNodeAbove(ikCtl, 'transform'), 'ik')
def _makeRig(self, namer):
neckJntCnt = self.options.getValue('numNeckBones') + 1
ikCtlCnt = self.options.getValue('numIkCtls')
toks = self.__getToks()
bndJnts = [namer(t, r='bnd') for t in toks]
MC.makeIdentity(bndJnts, apply=True, r=1, t=1, s=1)
namer.setTokens(r='fk')
#fkJnts = utils.dupJntList(bndJnts, toks, namer)
fkCtls = [namer(t, r='fk') for t in toks[:-1]]
fkCtls = control.setupFkCtls(bndJnts[:-1], fkCtls, toks[:-1], namer)
for ctl in fkCtls:
control.setLockTag(ctl, uk=['r'])
for i, tok in enumerate(toks[:-1]):
self.setPlugNode(tok, fkCtls[i])
namer.setTokens(r='ik')
ikJnts = utils.dupJntList(bndJnts, toks, namer)
MC.setAttr('%s.v' % ikJnts[0], 0)
ikCtls = []
for i in range(ikCtlCnt):
if i < (ikCtlCnt-1):
n = namer('ctl', r='ik', alphaSuf=i)
utils.insertNodeAbove(n)
else:
n = namer('head_ctl', r='ik')
ikCtls.append(n)
baseIkCtl = MC.createNode('transform', n=namer('base', r='ik'))
utils.snap(bndJnts[0], baseIkCtl, orient=False)
ikCtls.insert(0, baseIkCtl)
for ctl in ikCtls:
control.setLockTag(ctl, uk=['r', 't'])
tmp = MC.createNode('transform', n="TMP")
utils.parentShape(tmp, ikCtls[-1], deleteChildXform=False)
utils.snap(bndJnts[-2], ikCtls[-1])
utils.parentShape(ikCtls[-1], tmp)
utils.insertNodeAbove(ikCtls[-1])
#doubling the cvs on the end allows us to build a curve with only 2 controls,
#but causes popping otherwise. Only use if needed
doubleEndPoints = False
if ikCtlCnt == 1:
doubleEndPoints = True
crv = curveFromNodes(ikCtls, name=namer('ikspline_crv'), doubleEndPoints=doubleEndPoints )
srf = surfaceFromNodes(ikCtls, name=namer('ikspline_srf'), doubleEndPoints=doubleEndPoints)
bindControlsToShape(ikCtls, crv, doubleEndPoints=doubleEndPoints)
bindControlsToShape(ikCtls, srf, doubleEndPoints=doubleEndPoints)
ikNode, ikHandle = setupSpineIkNode(ikCtls, ikJnts[:-1], nodeName='splinik', namer=namer,
crv=crv, surf=srf)
self.setNodeCateogry(ikNode, 'dnt')
MC.setAttr("%s.v" % ikNode, 0)
#tag this node so the master connect the uniform scale
core.Root.tagInputScaleAttr(ikNode, 'inputScaleAmt')
MC.addAttr(ikCtls[-1], ln='fkIk', dv=0, k=1, min=0, max=1)
MC.addAttr(ikCtls[-1], ln='stretchAmt', dv=0, k=1, min=0, max=1)
MC.addAttr(ikCtls[-1], ln='evenStretchAmt', dv=0, k=1, min=0, max=1)
control.setLockTag(ikCtls[-1], uk=['fkIk', 'stretchAmt', 'evenStretchAmt'])
MC.connectAttr('%s.stretchAmt' % ikCtls[-1], '%s.stretchAmt' % ikNode)
MC.connectAttr('%s.evenStretchAmt' % ikCtls[-1], '%s.evenStretchAmt' % ikNode)
ikReverse = utils.blendJointChains(fkCtls, ikJnts[:-1], bndJnts[:-1], '%s.fkIk' % ikCtls[-1], namer)
for ctl in fkCtls:
MC.connectAttr('%s.outputX' % (ikReverse), '%s.v' % ctl)
for ctl in ikCtls[1:-1]:
MC.connectAttr('%s.fkIk' % (ikCtls[-1]), '%s.v' % ctl)
