def curveBetweenNodes(start=None, end=None, name=''):
'''
Makes a degree 3 nurbs curve with 4 cvs between two nodes
'''
# Validation of args
startPos, endPos = None, None
if not start or not end and len( cmds.ls( sl=True ) ) == 2:
startPos = cmds.xform( cmds.ls( sl=True )[0], translation=True, query=True, ws=True )
endPos = cmds.xform( cmds.ls( sl=True )[1], translation=True, query=True, ws=True )
else:
if type( start ) == type( 'hello' ) or type( start ) == type( u'hello' ):
startPos = cmds.xform( str(start), translation=True, query=True, ws=True )
else:
startPos = start
if type( end ) == type( 'hello' ) or type( end ) == type( u'hello' ):
endPos = cmds.xform( str(end), translation=True, query=True, ws=True )
else:
endPos = end
if not startPos or not endPos:
return common.showDialog( 'Argument Error', 'Cannot determine start and end points' )
points = common.pointsAlongVector(start=startPos, end=endPos, divisions=3)
# create the curve
crv = cmds.curve(p=points, k=[0,0,0,1,1,1], name='%s_crv' % name)
return crv
def bindCurve(crv=None):
'''
Creates a joint for each cv in the supplied or selected curve
performs a smooth bind on the curve to the joints
returns a list of the newly created joints
'''
# Validation of args
if not crv:
if len(cmds.ls(sl=1)) == 1:
crv = cmds.ls(sl=1)[0]
else:
return common.showDialog( 'Argument Error', 'Please supply or select a nurbs curve' )
jointList = []
cvs = cmds.getAttr("%s.cv[*]" % crv)
for cv in range(len(cvs)):
cmds.select(clear=1)
j = cmds.joint(p=cvs[cv], name='%s_%s_jnt' %(crv, cv+1))
jointList.append(j)
cmds.skinCluster(jointList, crv, tsb=1, name='%s_skinCluster' % crv)
return jointList
def build(start=None, end=None, startLoc=None, endLoc=None, name=''):
'''
Creates a distance tool with locators aligned to start and end nodes
Returns a dictionary containing keys for shape, transform, startLoc and endLoc
If locators are supplied for either startLoc or endLoc, they are used in place of creating new ones
'''
if not start or not end:
return common.showDialog('Agument Error. Please supply start and end nodes')
distanceShape = cmds.createNode('distanceDimShape')
distanceTransform = cmds.listRelatives(distanceShape, parent=True, fullPath=True)
if not startLoc:
startLoc = cmds.spaceLocator(name = '%s_distance_start_loc' % name)[0]
common.align(startLoc, start)
if not endLoc:
endLoc = cmds.spaceLocator(name = '%s_distance_end_loc' % name)[0]
common.align(endLoc, end)
cmds.connectAttr('%s.worldPosition[0]' % startLoc, '%s.startPoint' % distanceShape)
cmds.connectAttr('%s.worldPosition[0]' % endLoc, '%s.endPoint' % distanceShape)
distanceTransform = cmds.rename(distanceTransform, name, ignoreShape=True)
distanceShape = cmds.rename(distanceShape, '%sShape' % distanceTransform)
returnDict = {'shape':distanceShape, 'xform':distanceTransform, 'start':startLoc, 'end':endLoc}
return returnDict
def nodesAlongCurve(crv=None, numNodes=6, name='', followAxis='x', upAxis='y', upNode=None, upVec=None):
'''
creates a motionPath node for each in numNodes and connects its parameter to the supplied curve
attaches an empty group to each motionpath node
returns a dictionary with keys for the motionPath nodes and the groups along the curve as well as the rootGrp
upVec can be passed as an attribute eg translation which worldUpVector of motionpath node can be connected to
'''
# Validation of args
if not crv:
if len(cmds.ls(sl=1)) == 1:
crv = cmds.ls(sl=1)[0]
else:
return common.showDialog( 'Argument Error', 'Please supply or select a nurbs curve' )
upDict = {'x':(1.0, 0.0, 0.0), 'y':(0.0, 1.0, 0.0), 'z':(0.0, 0.0, 1.0)}
#rootGrp = cmds.group(empty=1, name='%s_pathNodes_grp' % name)
#cmds.setAttr('%s.inheritsTransform' % rootGrp, 0)
returnDict={'mpNodes':[], 'grps':[]}
for i in range( numNodes ):
n = cmds.group(empty=1, name='%s_%s_grp' % (name, i+1))
#cmds.parent(n, rootGrp)
mp = cmds.pathAnimation(n, fm=1, f=1, fa=followAxis, ua=upAxis, wu=upDict[upAxis], curve=crv, name='%s_%s_mp' % (name, i+1))
if upNode:
cmds.pathAnimation(mp, e=1, wut='objectrotation', wuo=upNode)
elif upVec:
cmds.connectAttr(upVec, '%s.worldUpVector' % mp)
# Delete all the crap that comes with the motion path node
mpAnim = cmds.listConnections( '%s.uValue' % mp, d=False, s=True, type='animCurve' )
adlX = cmds.listConnections( '%s.xCoordinate' % mp, d=True, s=False, type='addDoubleLinear' )
cmds.delete(adlX)
adlY = cmds.listConnections( '%s.yCoordinate' % mp, d=True, s=False, type='addDoubleLinear' )
cmds.delete(adlY)
adlZ = cmds.listConnections( '%s.zCoordinate' % mp, d=True, s=False, type='addDoubleLinear' )
cmds.delete(adlZ)
cmds.delete(mpAnim)
# Manually connect up the position
cmds.connectAttr('%s.xCoordinate' % mp, '%s.tx' % n, f=1)
cmds.connectAttr('%s.yCoordinate' % mp, '%s.ty' % n, f=1)
cmds.connectAttr('%s.zCoordinate' % mp, '%s.tz' % n, f=1)
if numNodes != 1:
cmds.setAttr('%s.uValue' % mp, (1.0 / (numNodes-1))*i)
else:
cmds.setAttr('%s.uValue' % mp, 0.5)
returnDict['mpNodes'].append(mp)
returnDict['grps'].append(n)
return returnDict
def tripleChain(top=None, mid=None, bot=None, end=None, prefix='', settingsCtrl=None, globalScaleAttr=None, nameList=legNames):
'''
makes an fk, ik and result chain based on the supplied 4 joint hierarchy
'''
#Validation
if not top or not mid or not bot or not end:
if len(pmc.selected()) == 4:
top = pmc.selected()[0]
mid = pmc.selected()[1]
bot = pmc.selected()[2]
end = pmc.selected()[3]
else:
return common.showDialog('Argument Error', 'Please supply 4 hierarchical joints')
##################################################################################################################################################
# Base groups
##################################################################################################################################################
# Root group
root = pmc.group(empty=1, name='%s_grp' % prefix)
if not globalScaleAttr:
globalScaleAttr = root.sx
#Constrain group which is aligned to the first joint and can be used to attach the limb to a shoulder or hip
const = pmc.group(empty=1, name='%s_const_grp' % prefix)
common.align(const.nodeName(), top.nodeName())
const.setParent(root)
def _duplicateChain(chainType):
dupes = cmds.duplicate(top.nodeName(), rc=1)
print dupes
dupes = pmc.ls(dupes)
for d in range(4):
dupes[d].rename('%s_%s_%s_jnt' % (prefix, nameList[d], chainType))
return dupes
resultChain = _duplicateChain('result')
resultChain[0].setParent(const)
fkChain = _duplicateChain('fk')
fkChain[0].setParent(const)
ikChain = _duplicateChain('ik')
ikChain[0].setParent(const)
##################################################################################################################################################
# SETTINGS & ATTRS
##################################################################################################################################################
if not settingsCtrl:
settingsCtrl = controls.crossCtrl(name='%s_settings_ctrl' % prefix)
common.align(settingsCtrl.nodeName(), const.nodeName())
settingsCtrl.setParent(root)
# ik / fk attr
pmc.addAttr(settingsCtrl, longName='state', at='float', minValue=0.0, maxValue=1.0, keyable=True, hidden=0)
stateRev = pmc.createNode('reverse', name='%s_state_rev' % prefix)
settingsCtrl.state.connect(stateRev.inputX)
# bendy ctrls switch
pmc.addAttr( settingsCtrl, longName='bendy_ctrls', at='enum', enumName='hide:show', keyable=True )
pmc.parentConstraint(resultChain[2], settingsCtrl)
##################################################################################################################################################
# FK CTRLS
##################################################################################################################################################
fkGrp = pmc.group(empty=1, name='%s_fk_grp' % prefix)
fkGrp.setParent(const)
settingsCtrl.state.connect(fkGrp.visibility)
# fk top ctrl
fkTopCtrl = controls.circleBumpCtrl(name='%s_%s_fk_ctrl' % (prefix, nameList[0]), axis='x', radius=10)
common.align(fkTopCtrl.nodeName(), fkChain[0].nodeName())
fkTopCtrl.setParent(fkGrp)
common.insertGroup(fkTopCtrl.nodeName())
# fk mid ctrl
fkMidCtrl = controls.circleBumpCtrl(name='%s_%s_fk_ctrl' % (prefix, nameList[1]), axis='x', radius=10)
common.align(fkMidCtrl.nodeName(), fkChain[1].nodeName())
fkMidCtrl.setParent(fkTopCtrl)
common.insertGroup(fkMidCtrl.nodeName())
# fk bot ctrl
fkBotCtrl = controls.circleBumpCtrl(name='%s_%s_fk_ctrl' % (prefix, nameList[2]), axis='x', radius=10)
common.align(fkBotCtrl.nodeName(), fkChain[2].nodeName())
fkBotCtrl.setParent(fkMidCtrl)
common.insertGroup(fkBotCtrl.nodeName())
pmc.parentConstraint(fkTopCtrl, fkChain[0])
pmc.parentConstraint(fkMidCtrl, fkChain[1])
pmc.parentConstraint(fkBotCtrl, fkChain[2])
# add extend attrs
for ctrl in [fkMidCtrl, fkBotCtrl]:
pmc.addAttr( ctrl, longName='extend', at='double', keyable=True )
boneLen = ctrl.getParent().tx.get()
if boneLen > 0.0:
extend_pma = common.add([boneLen, ctrl.extend], name='%s_extend_pma' % ctrl.nodeName())
else:
extend_pma = common.minus([boneLen, ctrl.extend], name='%s_extend_pma' % ctrl.nodeName())
extend_pma.output1D.connect(ctrl.getParent().tx)
##################################################################################################################################################
# IK BUSINESS
##################################################################################################################################################
ikGrp = pmc.group(empty=1, name='%s_ik_grp' % prefix)
ikGrp.setParent(root)
stateRev.outputX.connect(ikGrp.visibility)
# IK ctrl
ikCtrl = controls.boxCtrl(name='%s_ik_ctrl' % prefix, size=10)
common.align(ikCtrl.nodeName(), resultChain[2].nodeName(), orient=0)
ikCtrl.setParent(ikGrp)
common.insertGroup(ikCtrl.nodeName())
pmc.addAttr( ikCtrl, longName='stretch', at='double', minValue=0, maxValue=1, defaultValue=0, keyable=True )
pmc.addAttr( ikCtrl, longName='extend', at='double', keyable=True )
pmc.addAttr( ikCtrl, longName='soft', at='double', minValue=0, defaultValue=0, keyable=True )
# Set up ik / fk blending
for i in range(4):
common.blendAttrs(targ1=ikChain[i].nodeName(), targ2=fkChain[i].nodeName(), driven=resultChain[i].nodeName(), blendAttr='%s.state' % settingsCtrl.nodeName())
# Soft non-stretchy IK stuff
softBlendLoc = pmc.spaceLocator(name='%s_softBlendLoc' % prefix)
common.align(softBlendLoc.nodeName(), ikCtrl.nodeName())
softBlendLoc.setParent(ikGrp)
aimLoc = pmc.spaceLocator(name='%s_softIkAimLoc' % prefix)
common.align(aimLoc.nodeName(), const.nodeName())
aimLoc.setParent(const)
pmc.aimConstraint(ikCtrl, aimLoc)
wristLoc = pmc.spaceLocator(name='%s_wristLoc' % prefix)
common.align(wristLoc.nodeName(), ikCtrl.nodeName())
wristLoc.setParent(aimLoc)
ctrlLoc = pmc.spaceLocator(name='%s_ctrlLoc' % prefix)
common.align(ctrlLoc.nodeName(), ikCtrl.nodeName())
ctrlLoc.setParent(ikCtrl)
ctrlDist = common.distanceBetweenNodes(aimLoc, ctrlLoc, name='%s_ctrlDist' % prefix)
softDist = common.distanceBetweenNodes(wristLoc, softBlendLoc, name='%s_softDist' % prefix)
stretchDist = common.distanceBetweenNodes(aimLoc, softBlendLoc, name='%s_stretchDist' % prefix)
chainLen = abs(ikChain[1].tx.get() + ikChain[2].tx.get())
chainLenMinusSoft = common.minus([chainLen, ikCtrl.soft], name='%s_chainLenMinusSoft_pma' % prefix)
print(chainLenMinusSoft)
isStretchedCond = pmc.createNode('condition', name='%s_isStretched_cond' % prefix)
isStretchedCond.operation.set(2)
ctrlDist.distance.connect(isStretchedCond.firstTerm)
chainLenMinusSoft.output1D.connect(isStretchedCond.secondTerm)
ctrlDist.distance.connect(isStretchedCond.colorIfFalseR)
isSoftCond = pmc.createNode('condition', name='%s_isSoft_cond' % prefix)
isSoftCond.operation.set(2)
ikCtrl.soft.connect(isSoftCond.firstTerm)
isSoftCond.colorIfFalseR.set(chainLen)
ctrlDistMinusSoftChain = common.minus([ctrlDist.distance, chainLenMinusSoft.output1D], name='%s_ctrlDistMinusSoftChain_pma' % prefix)
divideBySoft = common.divide(ctrlDistMinusSoftChain.output1D, ikCtrl.soft, name='%s_divideBySoft_md' % prefix)
invert = common.multiply(divideBySoft.outputX, -1, name='%s_invertSoft_md' % prefix)
exp = common.pow(2.718282, invert.outputX, name='%s_exponential_md' % prefix)
multiplyBySoft = common.multiply(exp.outputX, ikCtrl.soft, name='%s_multiplyBySoft_md' % prefix)
minusFromChainLen = common.minus([chainLen, multiplyBySoft.outputX], name='%s_minusFromChainLen_md' % prefix)
minusFromChainLen.output1D.connect(isSoftCond.colorIfTrueR)
isSoftCond.outColorR.connect(isStretchedCond.colorIfTrueR)
isStretchedCond.outColorR.connect(wristLoc.tx)
# stretchy soft IK stuff
pc = pmc.pointConstraint(wristLoc, ctrlLoc, softBlendLoc)
stretchRev = pmc.createNode('reverse', name='%s_stretch_rev' % prefix)
ikCtrl.stretch.connect(stretchRev.inputX)
stretchRev.outputX.connect('%s.%sW0' % (pc.nodeName(), wristLoc.nodeName()))
ikCtrl.stretch.connect('%s.%sW1' % (pc.nodeName(), ctrlLoc.nodeName()))
globalScaleDiv = common.divide(1.0, globalScaleAttr, name='%s_globalScaleDiv_md' % prefix)
scaledSoftDist = common.multiply(globalScaleDiv.outputX, softDist.distance, name='%s_scaledSoftDist_md' % prefix)
# Stretchy Mid
midLen = common.multiply((mid.tx.get() / chainLen), scaledSoftDist.outputX, name='%s_midLen_md' % prefix)
stretchMidLen = common.multiply(ikCtrl.stretch, midLen.outputX, name='%s_stretchMidLen_md' % prefix)
stretchMidLenPlusBoneLen = common.add([mid.tx.get(), stretchMidLen.outputX], name='%s_stretchMidLenPlusBoneLen_pma' % prefix)
stretchMidLenPlusBoneLen.output1D.connect(ikChain[1].tx)
# Stretchy Bot
botLen = common.multiply((bot.tx.get() / chainLen), scaledSoftDist.outputX, name='%s_botLen_md' % prefix)
stretchBotLen = common.multiply(ikCtrl.stretch, botLen.outputX, name='%s_stretchBotLen_md' % prefix)
stretchBotLenPlusBoneLen = common.add([bot.tx.get(), stretchBotLen.outputX], name='%s_stretchBotLenPlusBoneLen_pma' % prefix)
stretchBotLenPlusBoneLen.output1D.connect(ikChain[2].tx)
# IK Solvers
ikHandleGrp = pmc.group(empty=1, name='%s_ikHandle_grp' % prefix)
common.align(ikHandleGrp.nodeName(), ikCtrl.nodeName())
ikHandleGrp.setParent(softBlendLoc)
pmc.orientConstraint(ikCtrl, ikHandleGrp, mo=1)
ikHandle = pmc.ikHandle(solver='ikRPsolver', name='%s_ikHandle' % prefix, startJoint=ikChain[0], endEffector=ikChain[2])[0]
common.align(ikHandle.nodeName(), resultChain[2].nodeName())
ikHandle.setParent(ikHandleGrp)
endIkHandle = pmc.ikHandle(solver='ikSCsolver', name='%s_end_ikHandle' % prefix, startJoint=ikChain[2], endEffector=ikChain[3])[0]
common.align(endIkHandle.nodeName(), resultChain[3].nodeName())
endIkHandle.rx.set(0)
endIkHandle.setParent(ikHandleGrp)
##################################################################################################################################################
# NON ROLLS
##################################################################################################################################################
topNonRoll = nonRoll.build(joint=resultChain[0].nodeName(), name='%s_top' % prefix)
cmds.parent(topNonRoll['main_grp'], const.nodeName())
midNonRoll = nonRoll.build(joint=resultChain[1].nodeName(), name='%s_mid' % prefix)
cmds.parent(midNonRoll['main_grp'], topNonRoll['nonRoll'])
botNonRoll = nonRoll.build(joint=resultChain[2].nodeName(), name='%s_bot' % prefix)
cmds.parent(botNonRoll['main_grp'], resultChain[1].nodeName())
def build(upLeg=None, lowLeg=None, ankle=None, end=None, side='lf', twistJoints=5, globalScaleAttr=None, cleanup=0):
'''
makes a triple chain leg using a set of 4 existing hierarchical joints
'''
#Validation
if not upLeg or not lowLeg or not ankle or not end:
if len(cmds.ls(sl=1)) == 4:
upLeg = cmds.ls(sl=1)[0]
lowLeg = cmds.ls(sl=1)[1]
ankle = cmds.ls(sl=1)[2]
end = cmds.ls(sl=1)[3]
else:
return common.showDialog( 'Argument Error', 'Please supply 4 hierarchical joints' )
# Root group
root = cmds.group(empty=1, name='%s_leg_grp' % side)
#Constrain group which is aligned to the first joint and can be used to attach the leg to a shoulder
const = cmds.group(empty=1, name='%s_leg_const_grp' % side)
common.align(const, upLeg)
cmds.parent(const, root)
# result chainw
dupes = cmds.duplicate(upLeg, rc=1)
resultChain = []
for i in range(4):
jnt = cmds.rename(dupes[i], '%s_%s_result_jnt' %(side, ['upLeg', 'lowLeg', 'ankle', 'end'][i]) )
resultChain.append(jnt)
cmds.parent(resultChain[0], const)
# fk chain
dupes = cmds.duplicate(resultChain[0], rc=1)
fkChain = []
for i in range(4):
jnt = cmds.rename(dupes[i], '%s_%s_fk_jnt' %(side, ['upLeg', 'lowLeg', 'ankle', 'end'][i]) )
fkChain.append(jnt)
# ik chain
dupes = cmds.duplicate(resultChain[0], rc=1)
ikChain = []
for i in range(4):
jnt = cmds.rename(dupes[i], '%s_%s_ik_jnt' %(side, ['upLeg', 'lowLeg', 'ankle', 'end'][i]) )
ikChain.append(jnt)
# Settings ctrl
settingsCtrl = controls.crossCtrl(name='%s_leg_settings_ctrl' % side)
settingsShape = common.getShape(settingsCtrl)
common.align(settingsCtrl, const)
cmds.parent(settingsCtrl, root)
# ik / fk attr
cmds.addAttr( settingsCtrl, longName='state', at='enum', enumName='ik:fk', keyable=True )
stateRev = cmds.createNode('reverse', name='%s_leg_state_rev' % side)
cmds.connectAttr('%s.state' % settingsCtrl, '%s.inputX' % stateRev)
# bendy ctrls switch
cmds.addAttr( settingsCtrl, longName='bendy_ctrls', at='enum', enumName='hide:show', keyable=True )
##################################################################################################################################### FK Ctrls
fkGrp = cmds.group(empty=1, name='%s_leg_fk_grp' % side)
cmds.parent(fkGrp, root)
cmds.connectAttr('%s.state' % settingsCtrl, '%s.visibility' % fkGrp)
# fk up leg
fkUpLegCtrl = controls.circleBumpCtrl(name='%s_upLeg_fk_ctrl' % side, axis='x', radius=10)[0]
common.align(fkUpLegCtrl, fkChain[0])
cmds.parent(fkUpLegCtrl, fkGrp)
common.insertGroup(fkUpLegCtrl)
# fk low leg
fkLowLegCtrl = controls.circleBumpCtrl(name='%s_lowLeg_fk_ctrl' % side, axis='x', radius=10)[0]
common.align(fkLowLegCtrl, fkChain[1])
cmds.parent(fkLowLegCtrl, fkUpLegCtrl)
# fk foot
fkFootCtrl = controls.circleBumpCtrl(name='%s_foot_fk_ctrl' % side, axis='x', radius=10)[0]
common.align(fkFootCtrl, fkChain[2])
cmds.parent(fkFootCtrl, fkLowLegCtrl)
cmds.parentConstraint(fkUpLegCtrl, fkChain[0])
cmds.parentConstraint(fkLowLegCtrl, fkChain[1])
cmds.parentConstraint(fkFootCtrl, fkChain[2])
# add extend attrs
for ctrl in [fkLowLegCtrl, fkFootCtrl]:
cmds.addAttr( ctrl, longName='extend', at='double', keyable=True )
extend_pma = cmds.createNode('plusMinusAverage', name='%s_extend_pma' % ctrl)
cmds.setAttr('%s.input1D[0]' % extend_pma, cmds.getAttr('%s.tx' % ctrl))
if side == 'lf':
cmds.setAttr('%s.operation' % extend_pma, 2)
cmds.connectAttr('%s.extend' % ctrl, '%s.input1D[1]' % extend_pma)
cmds.connectAttr('%s.output1D' % extend_pma, '%s.tx' % ctrl)
##################################################################################################################################### IK ctrls ####
ikGrp = cmds.group(empty=1, name='%s_leg_ik_grp' % side)
cmds.parent(ikGrp, root)
cmds.connectAttr('%s.outputX' % stateRev, '%s.visibility' % ikGrp)
# IK foot
ikFootCtrl = controls.boxCtrl(name='%s_foot_ik_ctrl' % side, size=10)
common.align(ikFootCtrl, resultChain[2], orient=0)
cmds.parent(ikFootCtrl, ikGrp)
common.insertGroup(ikFootCtrl)
cmds.addAttr( ikFootCtrl, longName='stretch', at='double', minValue=0, maxValue=1, defaultValue=0, keyable=True )
cmds.addAttr( ikFootCtrl, longName='extend', at='double', keyable=True )
cmds.addAttr( ikFootCtrl, longName='pin', at='double', minValue=0, maxValue=1, defaultValue=0, keyable=True )
# IK Knee
ikKneeCtrl = controls.crossCtrl(name='%s_knee_ik_ctrl' % side, size=10)
pvAxis = '-z'
if side == 'rt':
pvAxis='z'
pv = common.placePoleVector(node1=resultChain[0], node2=resultChain[1], node3=resultChain[2], axis=pvAxis)
cmds.setAttr('%s.t' % ikKneeCtrl, pv[0], pv[1], pv[2])
cmds.parent(ikKneeCtrl, ikGrp)
common.insertGroup(ikKneeCtrl)
# IK Solvers
ikHandle = cmds.ikHandle( solver='ikRPsolver', name='%s_leg_ikHandle' % side, startJoint=ikChain[ 0 ], endEffector=ikChain[ 2 ] )[ 0 ]
common.align(ikHandle, resultChain[2])
cmds.poleVectorConstraint(ikKneeCtrl, ikHandle)
cmds.parent(ikHandle, ikFootCtrl)
endIkFootle = cmds.ikHandle( solver='ikSCsolver', name='%s_leg_end_ikHandle' % side, startJoint=ikChain[ 2 ], endEffector=ikChain[ 3 ] )[ 0 ]
common.align(endIkFootle, resultChain[3])
cmds.parent(endIkFootle, ikFootCtrl)
cmds.setAttr('%s.rotateX' % endIkFootle, 0)
#if side == 'lf':
#cmds.setAttr('%s.preferredAngleY' % ikChain[1], -90)
# Set up ik / fk blending
for i in range(4):
common.blendAttrs(targ1=ikChain[i], targ2=fkChain[i], driven=resultChain[i], blendAttr='%s.state' % settingsCtrl)
############################################################################################################################## Stretchy IK
# upLeg to ankle measure
legDist = measure.build(start=resultChain[0], end=resultChain[2], name='%s_legDist' % side)
cmds.parent(legDist['start'], const)
cmds.parent(legDist['xform'], const)
cmds.parent(legDist['end'], ikFootCtrl)
# upLeg to knee measure
upLegDist = measure.build(start=resultChain[0], end=ikKneeCtrl, startLoc=legDist['start'], name='%s_upLegDist' % side)
cmds.parent(upLegDist['xform'], const)
cmds.parent(upLegDist['end'], ikKneeCtrl)
# knee to ankle measure
lowLegDist = measure.build(start=ikKneeCtrl, end=ikFootCtrl, startLoc=upLegDist['end'], endLoc=legDist['end'], name='%s_lowLegDist' % side)
cmds.parent(lowLegDist['xform'], const)
# Utility node creation
stretch_md = cmds.createNode('multiplyDivide', name='%s_leg_stretchFactor_md' % side)
squash_md = cmds.createNode('multiplyDivide', name='%s_leg_squashFactor_md' % side)
stretch_cond = cmds.createNode('condition', name='%s_leg_stretchFactor_cond' % side)
extend_pma = cmds.createNode('plusMinusAverage', name='%s_leg_extend_pma' % side)
upLegStretch_md = cmds.createNode('multiplyDivide', name='%s_upLeg_stretch_md' % side)
upLegStretchAmount_bc = cmds.createNode('blendColors', name='%s_upLeg_stretchAmount_bc' % side)
upLegPinAmount_bc = cmds.createNode('blendColors', name='%s_upLeg_pinAmount_bc' % side)
lowLegStretch_md = cmds.createNode('multiplyDivide', name='%s_lowLeg_stretch_md' % side)
lowLegStretchAmount_bc = cmds.createNode('blendColors', name='%s_lowLeg_stretchAmount_bc' % side)
lowLegPinAmount_bc = cmds.createNode('blendColors', name='%s_lowLeg_pinAmount_bc' % side)
extendGlobalScale_md = cmds.createNode('multiplyDivide', name='%s_leg_extendGlobalScale_md' % side)
legDistGlobalScale_md = cmds.createNode('multiplyDivide', name='%s_legDist_globalScale_md' % side)
upLegDistGlobalScale_md = cmds.createNode('multiplyDivide', name='%s_upLegDistGlobalScale_md' % side)
lowLegDistGlobalScale_md = cmds.createNode('multiplyDivide', name='%s_lowLegDistGlobalScale_md' % side)
# Connect up graph
cmds.connectAttr('%s.extend' % ikFootCtrl, '%s.input1X' % extendGlobalScale_md)
cmds.connectAttr('%s.distance' % legDist['shape'], '%s.input1X' % legDistGlobalScale_md)
cmds.setAttr('%s.operation' % legDistGlobalScale_md, 2)
cmds.connectAttr('%s.distance' % upLegDist['shape'], '%s.input1X' % upLegDistGlobalScale_md)
cmds.setAttr('%s.operation' % upLegDistGlobalScale_md, 2)
cmds.connectAttr('%s.distance' % lowLegDist['shape'], '%s.input1X' % lowLegDistGlobalScale_md)
cmds.setAttr('%s.operation' % lowLegDistGlobalScale_md, 2)
if globalScaleAttr:
cmds.connectAttr(globalScaleAttr, '%s.input2X' % legDistGlobalScale_md )
cmds.connectAttr(globalScaleAttr, '%s.input2X' % upLegDistGlobalScale_md )
cmds.connectAttr(globalScaleAttr, '%s.input2X' % lowLegDistGlobalScale_md )
else:
cmds.setAttr('%s.input2X' % legDistGlobalScale_md, 1)
cmds.setAttr('%s.input2X' % upLegDistGlobalScale_md, 1)
cmds.setAttr('%s.input2X' % lowLegDistGlobalScale_md, 1)
upLegLength = math.fabs(cmds.getAttr('%s.tx' % resultChain[1]))
lowLegLength = math.fabs(cmds.getAttr('%s.tx' % resultChain[2]))
cmds.connectAttr('%s.outputX' % extendGlobalScale_md, '%s.input1D[0]' % extend_pma)
cmds.setAttr('%s.input1D[1]' % extend_pma, upLegLength + lowLegLength)
cmds.connectAttr('%s.output1D' % extend_pma, '%s.input1X' % squash_md)
cmds.setAttr('%s.input2X' % squash_md, upLegLength + lowLegLength)
cmds.setAttr('%s.operation' % squash_md, 2)
cmds.connectAttr('%s.outputX' % legDistGlobalScale_md, '%s.input1X' % stretch_md)
cmds.setAttr('%s.input2X' % stretch_md, upLegLength + lowLegLength)
cmds.setAttr('%s.operation' % stretch_md, 2)
cmds.connectAttr('%s.outputX' % legDistGlobalScale_md, '%s.firstTerm' % stretch_cond)
cmds.connectAttr('%s.output1D' % extend_pma, '%s.secondTerm' % stretch_cond)
cmds.connectAttr('%s.outputX' % stretch_md, '%s.colorIfTrueR' % stretch_cond)
cmds.connectAttr('%s.outputX' % squash_md, '%s.colorIfFalseR' % stretch_cond)
cmds.setAttr('%s.operation' % stretch_cond, 2)
cmds.connectAttr('%s.outColorR' % stretch_cond, '%s.input1X' % upLegStretch_md)
cmds.setAttr('%s.input2X' % upLegStretch_md, upLegLength)
cmds.connectAttr('%s.outColorR' % stretch_cond, '%s.input1X' % lowLegStretch_md)
cmds.setAttr('%s.input2X' % lowLegStretch_md, lowLegLength)
cmds.connectAttr('%s.stretch' % ikFootCtrl, '%s.blender' % upLegStretchAmount_bc)
cmds.connectAttr('%s.outputX' % upLegStretch_md, '%s.color1R' % upLegStretchAmount_bc)
cmds.setAttr('%s.color2R' % upLegStretchAmount_bc, upLegLength)
cmds.connectAttr('%s.stretch' % ikFootCtrl, '%s.blender' % lowLegStretchAmount_bc)
cmds.connectAttr('%s.outputX' % lowLegStretch_md, '%s.color1R' % lowLegStretchAmount_bc)
cmds.setAttr('%s.color2R' % lowLegStretchAmount_bc, lowLegLength)
cmds.connectAttr('%s.pin' % ikFootCtrl, '%s.blender' % upLegPinAmount_bc)
cmds.connectAttr('%s.outputX' % upLegDistGlobalScale_md, '%s.color1R' % upLegPinAmount_bc)
cmds.connectAttr('%s.outputR' % upLegStretchAmount_bc, '%s.color2R' % upLegPinAmount_bc)
cmds.connectAttr('%s.pin' % ikFootCtrl, '%s.blender' % lowLegPinAmount_bc)
cmds.connectAttr('%s.outputX' % lowLegDistGlobalScale_md, '%s.color1R' % lowLegPinAmount_bc)
cmds.connectAttr('%s.outputR' % lowLegStretchAmount_bc, '%s.color2R' % lowLegPinAmount_bc)
if side == 'lf':
upLegPinAmount_uc = cmds.createNode('unitConversion', name='%s_upLegPinAmount_uc')
cmds.setAttr('%s.conversionFactor' % upLegPinAmount_uc, -1)
cmds.connectAttr('%s.outputR' % upLegPinAmount_bc, '%s.input' % upLegPinAmount_uc)
cmds.connectAttr('%s.output' % upLegPinAmount_uc, '%s.tx' % ikChain[1])
lowLegPinAmount_uc = cmds.createNode('unitConversion', name='%s_lowLegPinAmount_uc')
cmds.setAttr('%s.conversionFactor' % lowLegPinAmount_uc, -1)
cmds.connectAttr('%s.outputR' % lowLegPinAmount_bc, '%s.input' % lowLegPinAmount_uc)
cmds.connectAttr('%s.output' % lowLegPinAmount_uc, '%s.tx' % ikChain[2])
else:
cmds.connectAttr('%s.outputR' % upLegPinAmount_bc, '%s.tx' % ikChain[1])
cmds.connectAttr('%s.outputR' % lowLegPinAmount_bc, '%s.tx' % ikChain[2])
############################################################################################################################# Twist extration
upLegNonRoll = nonRoll.build(joint=resultChain[0], name='%s_upLeg' % side)
cmds.parent(upLegNonRoll['main_grp'], const)
lowLegNonRoll = nonRoll.build(joint=resultChain[1], name='%s_lowLeg' % side)
cmds.parent(lowLegNonRoll['main_grp'], upLegNonRoll['nonRoll'])
ankleNonRoll = nonRoll.build(joint=resultChain[2], name='%s_ankle' % side)
cmds.parent(ankleNonRoll['main_grp'], resultChain[1])
############################################################################################################################# Bendy leg
bendGrp = cmds.group(empty=1, name='%s_leg_bend_grp' % side)
cmds.parent(bendGrp, root)
cmds.connectAttr('%s.bendy_ctrls' % settingsCtrl, '%s.visibility' % bendGrp)
# Knee ctrl
bendyKneeCtrl = controls.squareCtrl(name='%s_knee_bend_ctrl' % side, axis='x', size=10)
cmds.parent(bendyKneeCtrl, bendGrp)
bendyKneeGrp = common.insertGroup(bendyKneeCtrl)
bendyKneeGrp = cmds.rename(bendyKneeGrp, '%s_knee_bend_grp' % side)
orientConstraint = cmds.orientConstraint(resultChain[0], resultChain[1], bendyKneeGrp)[0]
cmds.setAttr('%s.interpType' % orientConstraint, 2)
cmds.pointConstraint(resultChain[1], bendyKneeGrp)
cmds.addAttr(settingsCtrl, longName='auto_bend', at='double', minValue=0, maxValue=1, defaultValue=0, keyable=1)
# Auto / Manual knee bend
# In
bendyKneeInConstGrp = cmds.group(empty=1, name='%s_knee_bend_in_const_grp' % side)
common.align(bendyKneeInConstGrp, resultChain[0])
upLegPoints = common.pointsAlongVector(resultChain[0], resultChain[1], divisions=3)
cmds.setAttr('%s.t' % bendyKneeInConstGrp, upLegPoints[2][0], upLegPoints[2][1], upLegPoints[2][2])
cmds.parent(bendyKneeInConstGrp, bendGrp)
bendyKneeInCtrl = controls.squareCtrl(name='%s_knee_bend_in_ctrl' % side, axis='x', size=7.5)
common.align(bendyKneeInCtrl, bendyKneeInConstGrp)
cmds.parent(bendyKneeInCtrl, bendyKneeInConstGrp)
bendyKneeInManual = cmds.group(empty=1, name='%s_knee_bend_in_manual_targ' % side)
common.align(bendyKneeInManual, bendyKneeInConstGrp)
cmds.parent(bendyKneeInManual, resultChain[0])
cmds.pointConstraint(bendyKneeCtrl, resultChain[0], bendyKneeInManual)
cmds.pointConstraint(bendyKneeCtrl, bendyKneeInManual, e=1, w=2.0)
bendyKneeInAuto = cmds.group(empty=1, name='%s_knee_bend_in_auto_targ' % side)
common.align(bendyKneeInAuto, bendyKneeInConstGrp)
cmds.parent(bendyKneeInAuto, bendyKneeCtrl)
parentConstraint = cmds.parentConstraint(bendyKneeInManual, bendyKneeInAuto, bendyKneeInConstGrp)[0]
cmds.connectAttr('%s.auto_bend' % settingsCtrl, '%s.%sW1' % (parentConstraint, bendyKneeInAuto))
rev = cmds.createNode('reverse', name='%s_knee_bend_auto_rev')
cmds.connectAttr('%s.auto_bend' % settingsCtrl, '%s.inputX' % rev)
cmds.connectAttr('%s.outputX' % rev, '%s.%sW0' % (parentConstraint, bendyKneeInManual))
# out
bendyKneeOutConstGrp = cmds.group(empty=1, name='%s_knee_bend_out_const_grp' % side)
common.align(bendyKneeOutConstGrp, resultChain[1])
lowLegPoints = common.pointsAlongVector(resultChain[1], resultChain[2], divisions=3)
cmds.setAttr('%s.t' % bendyKneeOutConstGrp, lowLegPoints[1][0], lowLegPoints[1][1], lowLegPoints[1][2])
cmds.parent(bendyKneeOutConstGrp, bendGrp)
bendyKneeOutCtrl = controls.squareCtrl(name='%s_knee_bend_out_ctrl' % side, axis='x', size=7.5)
common.align(bendyKneeOutCtrl, bendyKneeOutConstGrp)
cmds.parent(bendyKneeOutCtrl, bendyKneeOutConstGrp)
bendyKneeOutManual = cmds.group(empty=1, name='%s_knee_bend_out_manual_targ' % side)
common.align(bendyKneeOutManual, bendyKneeOutConstGrp)
cmds.parent(bendyKneeOutManual, resultChain[1])
cmds.pointConstraint(bendyKneeCtrl, resultChain[2], bendyKneeOutManual)
cmds.pointConstraint(bendyKneeCtrl, bendyKneeOutManual, e=1, w=2.0)
bendyKneeOutAuto = cmds.group(empty=1, name='%s_knee_bend_out_auto_targ' % side)
common.align(bendyKneeOutAuto, bendyKneeOutConstGrp)
cmds.parent(bendyKneeOutAuto, bendyKneeCtrl)
parentConstraint = cmds.parentConstraint(bendyKneeOutManual, bendyKneeOutAuto, bendyKneeOutConstGrp)[0]
cmds.connectAttr('%s.auto_bend' % settingsCtrl, '%s.%sW1' % (parentConstraint, bendyKneeOutAuto))
rev = cmds.createNode('reverse', name='%s_knee_bend_auto_rev')
cmds.connectAttr('%s.auto_bend' % settingsCtrl, '%s.inputX' % rev)
cmds.connectAttr('%s.outputX' % rev, '%s.%sW0' % (parentConstraint, bendyKneeOutManual))
# Hip out
bendyHipConstGrp = cmds.group(empty=1, name='%s_hip_bend_const_grp' % side)
common.align(bendyHipConstGrp, resultChain[0])
cmds.parent(bendyHipConstGrp, bendGrp)
bendyHipCtrl = controls.squareCtrl(name='%s_hip_bend_ctrl' % side, axis='x', size=7.5)
common.align(bendyHipCtrl, bendyHipConstGrp)
cmds.parent(bendyHipCtrl, bendyHipConstGrp)
cmds.pointConstraint(bendyKneeCtrl, resultChain[0], bendyHipConstGrp)
cmds.pointConstraint(bendyKneeCtrl, bendyHipConstGrp, e=1, w=0.5)
cmds.orientConstraint(resultChain[0], bendyHipConstGrp)
# Ankle in
bendyAnkleConstGrp = cmds.group(empty=1, name='%s_ankle_bend_const_grp' % side)
common.align(bendyAnkleConstGrp, resultChain[1])
cmds.parent(bendyAnkleConstGrp, bendGrp)
bendyAnkleCtrl = controls.squareCtrl(name='%s_ankle_bend_ctrl' % side, axis='x', size=7.5)
common.align(bendyAnkleCtrl, bendyAnkleConstGrp)
cmds.parent(bendyAnkleCtrl, bendyAnkleConstGrp)
cmds.pointConstraint(bendyKneeCtrl, resultChain[2], bendyAnkleConstGrp)
cmds.pointConstraint(bendyKneeCtrl, bendyAnkleConstGrp, e=1, w=0.5)
cmds.orientConstraint(resultChain[1], bendyAnkleConstGrp)
############################################################################################################################# Curve segments
defJnts_grp = cmds.group(empty=1, name='%s_leg_defJnts_grp' % side)
cmds.parent(defJnts_grp, root)
# up leg
upLegSeg = cmds.group(empty=1, name='%s_upLeg_segment_grp' % side)
cmds.parent(upLegSeg, defJnts_grp)
cmds.setAttr('%s.inheritsTransform' % upLegSeg, 0)
crv = curve.curveBetweenNodes(start=upLeg, end=lowLeg, name='%s_upLeg' % side)
cmds.parent(crv, const)
mpNodes = curve.nodesAlongCurve(crv=crv, numNodes=twistJoints, name='%s_upLeg' % side, upNode=upLegNonRoll['nonRoll'])
cmds.parent(mpNodes['grps'], upLegSeg)
roll_uc = cmds.createNode('unitConversion', name='%s_upLeg_roll_uc' % side)
cmds.setAttr('%s.conversionFactor' % roll_uc, 1.0)
cmds.connectAttr('%s.rotateX' % lowLegNonRoll['info'], '%s.input' % roll_uc)
kneeRoll_uc = cmds.createNode('unitConversion', name='%s_upLeg_kneeRoll_uc' % side)
cmds.setAttr('%s.conversionFactor' % kneeRoll_uc, 1.0)
cmds.connectAttr('%s.rotateX' % bendyKneeCtrl, '%s.input' % kneeRoll_uc)
roll_pma = cmds.createNode('plusMinusAverage', name='%s_upLeg_roll_pma' % side)
cmds.connectAttr('%s.output' % roll_uc, '%s.input1D[0]' % roll_pma)
cmds.connectAttr('%s.output' % kneeRoll_uc, '%s.input1D[1]' % roll_pma)
for i in range(len(mpNodes['mpNodes'])):
# Create child Joint
cmds.select(clear=1)
j = cmds.joint(name='%s_upLeg_%s_defJnt' % (side, i))
common.align(j, mpNodes['grps'][i])
cmds.parent(j, mpNodes['grps'][i])
totalRoll_uc = cmds.createNode('unitConversion', name='%s_upLeg_totalRoll_%s_uc' % (side, i+1))
if side == 'lf':
cmds.setAttr('%s.conversionFactor' % totalRoll_uc, (1.0 / (twistJoints-1) * i)*-1)
else:
cmds.setAttr('%s.conversionFactor' % totalRoll_uc, 1.0 / (twistJoints-1) * i)
cmds.connectAttr('%s.output1D' % roll_pma, '%s.input' % totalRoll_uc)
cmds.connectAttr('%s.output' % totalRoll_uc, '%s.frontTwist' % mpNodes['mpNodes'][i])
upLegCrvJnts = curve.bindCurve(crv=crv)
cmds.parent(upLegCrvJnts[0], resultChain[0])
cmds.parent(upLegCrvJnts[1], bendyHipCtrl)
cmds.parent(upLegCrvJnts[2], bendyKneeInCtrl)
cmds.parent(upLegCrvJnts[3], bendyKneeCtrl)
# low leg
lowLegSeg = cmds.group(empty=1, name='%s_lowLeg_segment_grp' % side)
cmds.parent(lowLegSeg, defJnts_grp)
cmds.setAttr('%s.inheritsTransform' % lowLegSeg, 0)
crv = curve.curveBetweenNodes(start=lowLeg, end=ankle, name='%s_lowLeg' % side)
cmds.parent(crv, const)
mpNodes = curve.nodesAlongCurve(crv=crv, numNodes=twistJoints, name='%s_lowLeg' % side, upNode=resultChain[1])
cmds.parent(mpNodes['grps'], lowLegSeg)
for i in range(len(mpNodes['mpNodes'])):
# Create child Joint
cmds.select(clear=1)
j = cmds.joint(name='%s_lowLeg_%s_defJnt' % (side, i))
common.align(j, mpNodes['grps'][i])
cmds.parent(j, mpNodes['grps'][i])
roll_uc = cmds.createNode('unitConversion', name='%s_lowLeg_roll_%s_uc' % (side, i+1))
cmds.setAttr('%s.conversionFactor' % roll_uc, 1.0 / (twistJoints-1) * i)
cmds.connectAttr('%s.rotateX' % ankleNonRoll['info'], '%s.input' % roll_uc)
kneeRoll_uc = cmds.createNode('unitConversion', name='%s_lowLeg_kneeRoll_%s_uc' % (side, i+1))
cmds.setAttr('%s.conversionFactor' % kneeRoll_uc, 1.0 - (1.0 / (twistJoints-1) * i))
cmds.connectAttr('%s.rotateX' % bendyKneeCtrl, '%s.input' % kneeRoll_uc)
roll_pma = cmds.createNode('plusMinusAverage', name='%s_lowLeg_roll_%s_pma' % (side, i+1))
cmds.connectAttr('%s.output' % roll_uc, '%s.input1D[0]' % roll_pma)
cmds.connectAttr('%s.output' % kneeRoll_uc, '%s.input1D[1]' % roll_pma)
totalRoll_uc = cmds.createNode('unitConversion', name='%s_lowLeg_totalRoll_%s_uc' % (side, i+1))
if side == 'lf':
cmds.setAttr('%s.conversionFactor' % totalRoll_uc, -1.0)
else:
cmds.setAttr('%s.conversionFactor' % totalRoll_uc, 1.0)
cmds.connectAttr('%s.output1D' % roll_pma, '%s.input' % totalRoll_uc)
cmds.connectAttr('%s.output' % totalRoll_uc, '%s.frontTwist' % mpNodes['mpNodes'][i])
lowLegCrvJnts = curve.bindCurve(crv=crv)
cmds.parent(lowLegCrvJnts[0], bendyKneeCtrl)
cmds.parent(lowLegCrvJnts[1], bendyKneeOutCtrl)
cmds.parent(lowLegCrvJnts[2], bendyAnkleCtrl)
cmds.parent(lowLegCrvJnts[3], resultChain[2])
############################################################################################################################################## CLEANUP
if cleanup:
cmds.setAttr('%s.visibility' % const, 0)
common.attrCtrl(lock=True, keyable=False, channelBox=False, nodeList=[const, bendyKneeCtrl], attrList=['visibility'])
common.attrCtrl(lock=True, keyable=False, channelBox=False,
nodeList=[fkUpLegCtrl, fkLowLegCtrl, fkFootCtrl],
attrList=['visibility', 'tx', 'ty', 'tz', 'sx', 'sy', 'sz'])
common.attrCtrl(lock=True, keyable=False, channelBox=False,
nodeList=[ikFootCtrl,],
attrList=['visibility', 'sx', 'sy', 'sz'])
common.attrCtrl(lock=True, keyable=False, channelBox=False,
nodeList=[ikKneeCtrl, bendyHipCtrl, bendyKneeInCtrl, bendyKneeOutCtrl, bendyAnkleCtrl],
attrList=['visibility', 'sx', 'sy', 'sz'])
############################################################################################################################################## RETURN
returnDict={
'upLeg_fk_ctrl':fkUpLegCtrl,
'lowLeg_fk_ctrl':fkLowLegCtrl,
'foot_fk_ctrl':fkFootCtrl,
'foot_ik_ctrl':ikFootCtrl,
'knee_ik_ctrl': ikKneeCtrl,
'settings':settingsCtrl,
'knee_bend_ctrl':bendyKneeCtrl,
'hip_bend_ctrl':bendyHipCtrl,
'knee_in_bend_ctrl':bendyKneeInCtrl,
'knee_out_bend_ctrl':bendyKneeInCtrl,
'root':root,
'const':const
}
return returnDict