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bdRibbonCreator.py
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bdRibbonCreator.py
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import pymel.core as pm
import maya.OpenMaya as om
# Creates a ribbon setup as following ( based on a Rigging Dojo technique):
# - creates two 1 degree curves
# - creates driver joints for the curves to be skinned
# - lofts the curves as 1 degree surface, history on
# - rebuilds the lofted surface as a 3 degree surface, history on
class bdRibbon():
def __init__(self,*args,**kargs):
self.nameRbn = kargs.setdefault('name')
self.startRbn = kargs.setdefault('start')
self.endRbn = kargs.setdefault('end')
self.segmentsRbn = kargs.setdefault('segments')
self.direction = kargs.setdefault('direction')
self.ends = kargs.setdefault('ends')
self.startJnt = ''
self.endJnt = ''
self.rbnSrf = ''
self.rbnGrp = ''
self.bdBuildSrf(self.nameRbn)
#self.bdBuildRbnDT(self.nameRbn,self.startRbn, self.endRbn, self.segmentsRbn)
#self.bdBuildRbnRD(self.segmentsRbn )
def bdBuildSrf(self,name):
selected = pm.ls(sl=1)
if selected:
if len(selected) == 1:
if selected[0].type() == 'joint':
print 'start srf'
self.startJnt = selected[0]
children = self.startJnt.getChildren(type='joint')
print children
#need to implement a case with more joint chidren
#build the one degree curves for lofting
self.endJnt = children[0]
startPos1,endPos1 = self.bdGetPos(-0.05)
startPos2,endPos2 = self.bdGetPos( 0.05)
pm.spaceLocator(p=startPos1)
pm.spaceLocator(p=startPos2)
pm.spaceLocator(p=endPos1)
pm.spaceLocator(p=endPos2)
dif1 = (endPos1 - startPos1)
dif2 = (endPos2 - startPos2)
crv1Points = []
crv2Points = []
for i in range(self.segmentsRbn):
pos = dif1 * (i/(self.segmentsRbn*1.0)) + startPos1
crv1Points.append(pos )
pos = dif2 * (i/(self.segmentsRbn*1.0)) + startPos2
crv2Points.append(pos)
crv1Points.append(endPos1)
crv2Points.append(endPos2)
print 'building curve'
tmp = pm.curve(n=name + '_crv1',d=1,p=crv1Points)
crv1 = pm.ls(tmp)[0]
print crv1
#crv1.setScalePivot(startPos1)
#crv1.setRotatePivot(startPos1)
crv2 = pm.curve(n=name + '_crv2',d=1,p=crv2Points)
#crv2.setScalePivot(startPos2)
#crv2.setRotatePivot(startPos2)
drvGrp = self.bdCreateDrvJnt(crv1,crv2)
#loft the curves
loftSrf = pm.loft(crv1,crv2,ch=1,u=1,c= 0,ar= 1,d=1,ss= 1,rn=0,po=0,rsn=1,n=name + "_lft_srf")[0]
#loftSrf.setScalePivot(startPos2)
#loftSrf.setRotatePivot(startPos2)
rebuiltLoftSrf = pm.rebuildSurface(ch=1, rpo = 0, rt = 0, end = 1, kr=1, kcp=0,kc=0, su=0, du=3, sv=0, dv=1, fr=0, dir=2 , n=name + "_srf")[0]
self.rbnSrf = rebuiltLoftSrf
crvGrp = pm.group([crv1,crv2],name=name+'_crv_grp')
crvGrp.centerPivots()
srfGrp = pm.group([loftSrf,rebuiltLoftSrf],name=name+'_srf_grp')
srfGrp.centerPivots()
self.rbnGrp = pm.group([crvGrp,srfGrp],n=name+"_grp")
pm.parent(drvGrp,self.rbnGrp)
def bdGetPos(self, offset):
jnt1Pos = self.startJnt.getTranslation(space='world')
#jnt1Rot = self.startJnt.getRotation(space='world')
jnt2Pos = self.endJnt.getTranslation(space='world')
'''
tmpLoc = pm.spaceLocator(n='tempLoc')
pm.move(jnt1Pos[0],jnt1Pos[1],jnt1Pos[2],a=1,ws=1)
#tmpLoc.setTranslation(jnt1Pos)
#tmpLoc.setRotation(jnt1Rot)
pm.move(0,0,offset, r=1, os=1)
startPos = tmpLoc.getTranslation(space='world')
#tmpLoc.setTranslation(jnt2Pos)
pm.move(jnt2Pos[0],jnt2Pos[1],jnt2Pos[2],a=1,ws=1)
pm.move(0,0,offset, r=1, os=1)
endPos = tmpLoc.getTranslation(space='world')
pm.delete(tmpLoc)
'''
startPos = [jnt1Pos[0],jnt1Pos[1],jnt1Pos[2] + offset]
endPos = [jnt2Pos[0],jnt2Pos[1],jnt2Pos[2] + offset]
print startPos, endPos
return startPos, endPos
def bdBuildRbnRD(self,numFlc):
if self.rbnSrf:
flcGrp = self.bdCreateFol(self.rbnSrf,numFlc,self.direction,self.ends)
self.bdCreateJoints(flcGrp)
def bdCreateJoints(self,flcGrp):
folicles = flcGrp.listRelatives(c=True,type='transform')
for flc in folicles:
flcJoint = pm.joint()
flcJoint.rename(flc.name().replace('flc','JNT'))
pm.parent(flcJoint,flc)
flcJoint.setTranslation([0,0,0])
self.bdCreateJntCtrl(flcJoint,0.15)
def bdCreateJntCtrl(self,jnt,scale):
ctrl = pm.circle(n=jnt.name().replace('JNT','ctrl'))[0]
ctrl.ry.set(90)
ctrl.setScale([scale,scale,scale])
ctrl.overrideEnabled.set(1)
ctrl.overrideColor.set(18)
pm.makeIdentity(ctrl,a=1)
ctrlGrp = pm.group(name = ctrl.name() + '_grp')
if jnt.getParent():
pm.parent(ctrlGrp,jnt.getParent())
for axis in ['X','Y','Z']:
ctrlGrp.attr('translate'+axis).set(0)
ctrlGrp.attr('rotate'+axis).set(0)
pm.parent(jnt,ctrl)
else:
pm.parent(ctrlGrp,jnt)
for axis in ['X','Y','Z']:
ctrlGrp.attr('translate'+axis).set(0)
ctrlGrp.attr('rotate'+axis).set(0)
pm.parent(ctrlGrp,w=1)
pm.parent(jnt,ctrl)
return ctrlGrp
def bdFlcScaleCnstr(self,scaleGrp,flcGrp):
folicles = flcGrp.listRelatives(c=True,type='transform')
for flc in folicles:
pm.scaleConstraint(scaleGrp,flc)
def bdCreateFol(self,surfaceRbn,segments,direction,ends):
folicles = []
if not ends:
flcRange = [i for i in range(1,segments)]
else:
flcRange = [i for i in range(segments+1)]
for i in flcRange:
flcShape = pm.createNode('follicle', name = surfaceRbn.name().replace('srf','FLCShape') + '_0' + str(i) )
flcTransform = flcShape.getParent()
flcTransform.rename(surfaceRbn.name().replace('srf','flc') + '_0' + str(i) )
folicles.append(flcTransform)
surfaceRbn.getShape().local.connect(flcShape.inputSurface)
surfaceRbn.getShape().worldMatrix[0].connect(flcShape.inputWorldMatrix)
flcShape.outRotate.connect(flcTransform.rotate)
flcShape.outTranslate.connect(flcTransform.translate)
if(self.direction == 'v'):
flcShape.parameterU.set(0.5)
flcShape.parameterV.set((i*1.0)/segments)
else:
flcShape.parameterV.set(0.5)
flcShape.parameterU.set((i*1.0)/segments)
flcGrp = pm.group(folicles,n=surfaceRbn.name().replace('srf','flc_grp'))
pm.parent(flcGrp,self.rbnGrp)
return flcGrp
def bdCreateDrvJnt(self,crv1,crv2):
pm.select(cl=1)
drv1 = self.startJnt.duplicate(po=1)[0]
pm.parent(drv1,w=1)
drv1.rename(self.nameRbn + '_DRV_1_JNT')
radius = self.startJnt.radius.get()
drv1.radius.set(radius*1.5)
pm.parentConstraint(self.startJnt,drv1,mo=0)
drv2 = drv1.duplicate(po=1)[0]
drv2.rename(self.nameRbn + '_DRV_2_JNT')
drv3 = drv1.duplicate(po=1)[0]
drv3.rename(self.nameRbn + '_DRV_3_JNT')
pm.parentConstraint(self.endJnt,drv3,mo=0)
startPos,endPos = self.bdGetPos(0)
drv1.setTranslation(startPos)
drv3.setTranslation(endPos)
drv2CtrlGrp = self.bdCreateJntCtrl(drv2,0.20)
pm.pointConstraint(drv1,drv2CtrlGrp,mo=0 )
pm.pointConstraint(drv3,drv2CtrlGrp,mo=0 )
aimLocator = pm.spaceLocator(n=drv2CtrlGrp.name().replace('DRV_2_CTRL_GRP','AIM'))
drv2CtrlGrpPos = drv2CtrlGrp.getTranslation(space='world')
aimLocator.setPosition(drv2CtrlGrpPos)
for axis in ['X','Y','Z']:
aimLocator.attr('localScale'+axis).set(0.1)
aimLocatorGrp = pm.group(aimLocator,n=aimLocator.name() + '_grp')
aimLocatorGrp.centerPivots()
if self.direction == 'hor':
pm.move(0,0.5,0, aimLocatorGrp, r=1, os=1, wd=1)
elif self.direction == 'vert':
pm.move(0,0,0.5, aimLocatorGrp, r=1, os=1, wd=1)
pm.parentConstraint(self.startJnt,aimLocatorGrp,mo=1)
print aimLocator.getTranslation(space='world').x
if aimLocator.getTranslation(space='world').x > 0:
pm.aimConstraint(drv3,drv2CtrlGrp,mo=1,weight=1,aimVector=[1, 0, 0],upVector = [0, 1, 0],worldUpType="object" , worldUpObject = aimLocator)
else:
pm.aimConstraint(drv3,drv2CtrlGrp,mo=1,weight=1,aimVector=[-1, 0, 0],upVector = [0, 1, 0],worldUpType="object" , worldUpObject = aimLocator)
drvGrp = pm.group([drv1,drv2CtrlGrp,drv3],n=self.nameRbn + '_DRV_GRP')
crv1Skin = pm.skinCluster(drv1,drv2,drv3,crv1)
crv1Skin = pm.skinCluster(drv1,drv2,drv3,crv2)
pm.parent(aimLocatorGrp,drvGrp)
return drvGrp
def bdBuildRbnDT(self,name,start,end,segments):
surfaceRbn = pm.nurbsPlane(ax = [0,0,22], d=3, u=1, v=segments , w=1, lr = segments)[0]
surfaceRbn.rename(name)
flcGrp = self.bdCreateFol(surfaceRbn,segments)
surfaceRbn_BS = surfaceRbn.duplicate()[0]
surfaceRbn_BS.rename(name + '_BS')
surfaceRbn_BS.translateX.set(segments * 0.5 )
blendshapeNode = pm.blendShape(surfaceRbn_BS,surfaceRbn,name=surfaceRbn.name() + '_blendShape')[0]
blendshapeNode.attr(surfaceRbn_BS.name()).set(1)
locatorsRbn = []
topLocator = pm.spaceLocator()
topLocator.rename(name + '_loc_top_CON')
topLocator.translateY.set(segments * 0.5)
pm.makeIdentity(topLocator,apply=True,t=True,r=True,s=True)
midLocator = pm.spaceLocator()
midLocator.rename(name + '_loc_mid_CON')
midLocatorGrp = pm.group(midLocator,name=midLocator.name() + '_grp')
pm.makeIdentity(midLocator,apply=True,t=True,r=True,s=True)
botLocator = pm.spaceLocator()
botLocator.rename(name + '_loc_bot_CON')
botLocator.translateY.set(segments * -0.5)
pm.makeIdentity(botLocator,apply=True,t=True,r=True,s=True)
locatorsRbn.append(topLocator)
locatorsRbn.append(midLocator)
locatorsRbn.append(botLocator)
pm.pointConstraint(topLocator,botLocator,midLocatorGrp)
conGrp = pm.group([topLocator,midLocatorGrp,botLocator],n=name.replace('srf','CON_GRP'))
curveDrv = pm.curve(d=2, p=[(0, segments * 0.5, 0), (0, 0, 0), (0, segments * -0.5, 0)],k=[0,0,1,1])
curveDrv.rename(name.replace('srf', 'wire_CRV'))
curveDrv.translateX.set(segments * 0.5)
wireDef = pm.wire(surfaceRbn_BS,w=curveDrv,en=1,gw=False,ce=0, li=0, dds = [0,20], n=name.replace('srf','wire'))
#kind of a hack
wireDefBase = wireDef[0].baseWire[0].listConnections(d=False,s=True)
curveCLS,clsGrp = self.bdClustersOnCurve(curveDrv,segments)
for i in range(3):
locatorsRbn[i].translate.connect(curveCLS[i].translate)
#organize a bit
moveGrp = pm.group([conGrp,surfaceRbn],name=name.replace('srf','move_GRP'))
extraGrp = pm.group([flcGrp,surfaceRbn_BS,clsGrp,curveDrv,wireDefBase],name = name.replace('srf','extra_GRP'))
allGrp = pm.group([moveGrp,extraGrp],name = name.replace('srf','RBN'))
self.bdFlcScaleCnstr(moveGrp,flcGrp)
globalCon = pm.spaceLocator()
globalCon.rename(name.replace("srf",'world_CON'))
pm.parent(globalCon,allGrp)
pm.parent(moveGrp,globalCon)
self.bdCreateJoints(flcGrp)
twistDef, twistDefTransform = self.bdAddTwist(surfaceRbn_BS)
pm.parent(twistDefTransform, extraGrp)
topLocator.rotateY.connect(twistDef.startAngle)
botLocator.rotateY.connect(twistDef.endAngle)
pm.reorderDeformers(wireDef[0],twistDef,surfaceRbn_BS)
def bdAddTwist(self,surfaceRbn_BS):
pm.select(surfaceRbn_BS)
twistDef, twistDefTransform = pm.nonLinear(type='twist')
twistDefTransform.rename(surfaceRbn_BS.name().replace('SRF_BS','twistHandle'))
twistDef.rename(surfaceRbn_BS.name().replace('SRF_BS','twist'))
twistDefTransform.rotateX.set(180)
return twistDef, twistDefTransform
def bdClustersOnCurve(self,curveDrv,segments):
clusters = []
curveCVs = curveDrv.cv
topClusterTransform= pm.cluster([curveCVs[0],curveCVs[1]],rel=True)[1]
topClusterTransform.rename(curveDrv.name() + '_top_CLS')
topClusterTransform.getShape().originY.set(segments * 0.5)
pivot = curveCVs[0].getPosition(space='world')
topClusterTransform.setPivots(pivot)
clusters.append(topClusterTransform)
midClusterTransform = pm.cluster(curveCVs[1],rel=True)[1]
midClusterTransform.rename(curveDrv.name() + '_mid_CLS')
pivot = curveCVs[1].getPosition(space='world')
midClusterTransform.setPivots(pivot)
clusters.append(midClusterTransform)
botClusterTransform = pm.cluster([curveCVs[1],curveCVs[2]],rel=True)[1]
botClusterTransform.rename(curveDrv.name() + '_bot_CLS')
botClusterTransform.getShape().originY.set(segments * - 0.5 )
pivot = curveCVs[2].getPosition(space='world')
botClusterTransform.setPivots(pivot)
clusters.append(botClusterTransform)
topCluster = topClusterTransform.listConnections(type='cluster')[0]
botCluster = botClusterTransform.listConnections(type='cluster')[0]
pm.percent(topCluster,curveCVs[1],v=0.5)
pm.percent(botCluster,curveCVs[1],v=0.5)
clsGrp = pm.group(clusters,n=curveDrv.name() + '_CLS_GRP')
return clusters,clsGrp
'''
def bdRibbonMain():
selection = pm.ls(selection=True,type='transform')
#if selection.count > 2:
ribbon = bdRibbon(name='spine_SRF',start='start',end='end',segments=5)
bdRibbonMain()
'''