Python core.createNode函数代码示例

    def _visualizer_setup(self):
        """Add a shader to visualize the outValue and the coneAngle."""
        visualize_sdr = pm.shadingNode('surfaceShader', asShader=True,
                                       n='visualize')
        sets = pm.sets(renderable=True, noSurfaceShader=True, empty=True,
                       n='visualize')
        visualize_sdr.outColor >> sets.surfaceShader
        vis_ramp = pm.createNode('ramp', n='visualize')
        vis_ramp.setAttr('type', 1)
        vis_ramp.setAttr('colorEntryList[0].color', 0, 0, 0)
        vis_ramp.setAttr('colorEntryList[1].position', 1)
        vis_ramp.setAttr('colorEntryList[1].color', 0, 0, 0)
        vis_ramp.setAttr('colorEntryList[2].position', 0)
        cmds.setAttr('%s.colorEntryList[2].color' % vis_ramp, 0, 0, 0,
                     type='double3')
        vis_ramp.setAttr('colorEntryList[3].color', 0, 0, 0)
        self.ramp.outColorR >> vis_ramp.colorEntryList[1].color.colorG
        rmv = pm.createNode('remapValue', n='visualize')
        rmv.setAttr('inputMin', -1)
        rmv.setAttr('inputMax', 0)
        rmv.setAttr('outputMin', 1)
        rmv.setAttr('outputMax', 0)
        self.ramp.outColorR >> rmv.inputValue
        rmv.outValue >> vis_ramp.colorEntryList[2].color.colorR

        (self.ramp.colorEntryList[0].position >>
         vis_ramp.colorEntryList[0].position)
        (self.ramp.colorEntryList[3].position >>
         vis_ramp.colorEntryList[3].position)

        vis_ramp.outColor >> visualize_sdr.outColor
        pm.defaultNavigation(source=visualize_sdr,
                             destination=self.sphere.getShape().instObjGroups[0],
                             connectToExisting=True)

	def createEtWorldPosRE(self):
		
		#create etWorldPosRE
		etWorldPosRE = self.createRenderElement('ExtraTexElement')
		pm.rename(etWorldPosRE, 'rbEtWorldPos')
		
		#SetAttrs on etWorldPosRE
		pm.setAttr(etWorldPosRE.vray_name_extratex, 'rbEtWorldPos')
		pm.setAttr(etWorldPosRE.vray_explicit_name_extratex, 'rbEtWorldPos')
		pm.setAttr(etWorldPosRE.vray_affectmattes_extratex, 0)
		pm.setAttr(etWorldPosRE.vray_filtering_extratex, 0)
		
		
		#Create vrayfresnel tex and setAttrs
		pm.select(cl = True)
		
		vrayFresnelTex = pm.createNode('VRayFresnel')
		pm.rename(vrayFresnelTex, 'rbVRayFresnelWorldPos')
		pm.setAttr(vrayFresnelTex.IOR, 1)
		
		pm.select(cl = True)
		
		#Create sampler Info Node
		samplerInfoWorldPos = pm.createNode('samplerInfo')
		pm.rename(samplerInfoWorldPos, 'rbSamplerInfoWorldPos')
		
		#connections
		samplerInfoWorldPos.pointWorld >> vrayFresnelTex.frontColor
		samplerInfoWorldPos.pointWorld >> vrayFresnelTex.sideColor
		vrayFresnelTex.outColor >> etWorldPosRE.vray_texture_extratex
		pm.select(cl = True)
		
		
		#verbose
		if(self.verbose): print('Extra Tex World Pos RE created')

def create_copier(in_meshes, name='out_geo#', in_array=None, rotate=True):

    # Create output mesh
    out_shape = pm.createNode('mesh')
    out_xform = out_shape.getParent()
    out_xform.rename(name)

    # Create copier node
    copier = pm.createNode('copier')
    copier.orient.set(1)
    copier.toggleUV.set(1)
    copier.outputMesh.connect(out_shape.inMesh)

    # Connect input meshes
    for i, mesh in enumerate(in_meshes):
        shape = mesh.getShape(noIntermediate=True)
        shape.worldMesh[0].connect(copier.inputMesh[i])

    if not in_array:
        # Connect input transforms
        array = pm.createNode('transformsToArrays')
    else:
        array = in_array

    array.outPositionPP.connect(copier.posArray)
    if rotate:
        array.outRotationPP.connect(copier.rotArray)

    return out_xform, copier, array

def closestEndOrStartVertToSurface(targetSurface, transforms):
	'''
	Usage:
		closestEndOrStartVertToSurface(pm.PyNode('r_hand_GEO'), pm.ls(sl=True))
	'''
	cpom = pm.createNode('closestPointOnMesh')
	distBet = pm.createNode('distanceBetween')
	targetSurface.outMesh.connect(cpom.inMesh)
	for transform in transforms:
		closestPointAndVert = {}
		loc = pm.spaceLocator(n=transform.name().replace('GEO','LOC'))
		
		loc.translate.set( transform.getShape().vtx[-1].getPosition() )
		cpom.inPosition.set(loc.translate.get())
		closestVert = cpom.closestVertexIndex.get()
		closestPosEnd = targetSurface.vtx[cpom.closestVertexIndex.get()].getPosition()
		distBet.point1.set( closestPosEnd )
		distBet.point2.set( loc.translate.get() )
		distToEnd = distBet.distance.get()
		closestPointAndVert[distToEnd] = [closestVert, closestPosEnd]
		
		loc.translate.set( transform.getShape().vtx[0].getPosition() )
		cpom.inPosition.set(loc.translate.get())
		closestVert = cpom.closestVertexIndex.get()
		closestPosStart = targetSurface.vtx[cpom.closestVertexIndex.get()].getPosition()
		distBet.point1.set( closestPosStart )
		distBet.point2.set( loc.translate.get() )
		distToStart = distBet.distance.get()
		closestPointAndVert[distToStart] = [closestVert, closestPosEnd]
		
		loc.translate.set( closestPointAndVert[ min(distToStart, distToEnd) ][1] )

def connectJacketLoc(twistCrv, untwistCrv, param, name='', addCrvs=[]):
    '''
    '''
    mp = pm.createNode('motionPath', n=twistCrv+name+'_mp')
    untwistCrv.worldSpace >> mp.geometryPath
    mp.u.set(param)
    
    npc = pm.createNode('nearestPointOnCurve', n=twistCrv+name+'_npc')
    mp.allCoordinates >> npc.inPosition
    twistCrv.worldSpace >> npc.inputCurve
    
    allLocs = []
    loc = pm.spaceLocator(n=twistCrv+name+'_loc')
    npc.position >> loc.translate
    allLocs.append(loc)
    
    for crv in addCrvs:
        pci = pm.createNode('pointOnCurveInfo', n=crv+name+'_pci')
        npc.parameter >> pci.parameter
        crv.worldSpace >> pci.inputCurve
        loc = pm.spaceLocator(n=crv+name+'_loc')
        pci.position >> loc.translate
        allLocs.append(loc)
    
    pm.select(allLocs)

    def test_export_network(self, epsilon=0.00001):
        pynode_a = pymel.createNode('transform')
        pynode_b = pymel.createNode('transform')

        old_instance = A()
        old_instance.ex_int = 42
        old_instance.ex_float = 3.14159
        old_instance.ex_str = 'Hello World'
        old_instance.ex_None = None
        old_instance.ex_list_pynode = [None, pynode_a, None, pynode_b]

        #
        # Ensure consistency when exporting to network
        #
        n = libSerialization.export_network(old_instance)
        network_ex_int = n.ex_int.get()
        network_ex_float = n.ex_float.get()
        network_ex_str = n.ex_str.get()
        self.assertTrue(network_ex_int == old_instance.ex_int)
        self.assertTrue(abs(network_ex_float- old_instance.ex_float) < epsilon)
        self.assertTrue(network_ex_str == old_instance.ex_str)

        # Note: libSerialization will NEVER export a None value since the type cannot be resolved.
        self.assertTrue(not n.hasAttr('ex_None'))

        #
        # Ensure consistency when importing from network
        #
        new_instance = libSerialization.import_network(n)
        self.assertTrue(network_ex_int == new_instance.ex_int)
        self.assertTrue(abs(network_ex_float- new_instance.ex_float) < epsilon)
        self.assertTrue(network_ex_str == new_instance.ex_str)

	def _attachRenderProxy( self, objects ):
		path = self.fileInput.text()
		proxy = []
		
		if os.path.isdir(path):
			for file in glob.glob(path+"/*.mib"):
				bipx = pm.createNode('mip_binaryproxy',n=file.split('/').pop().split('.')[0]+'_BINARYPROXY')
				bipx.object_filename.set(file)
				proxy.append(bipx)
		else:
			bipx = pm.createNode('mip_binaryproxy',n=path.split('/').pop().split('.')[0]+'_BINARYPROXY')
			bipx.object_filename.set(path)
			proxy.append( bipx )
			
		if not objects:
			for prx in proxy:
				objects.append(pm.polyCube())
				
		for arg in objects:
			if len(proxy)==0: pm.error('No proxies found in folder. Womp Womp.')
			elif len(proxy)>1:
				print 'more than one proxy'
				#turn the lo geometry shader on
				arg.miExportGeoShader.set(1)
				#connect the proxy to the lo's geo shader
				proxy[random.randint(0,len(proxy)-1)].outValue.connect(arg.miGeoShader, f=True)
			else:
				print 'one proxy'
				#turn the lo geometry shader on
				arg.miExportGeoShader.set(1)
				#connect the proxy to the lo's geo shader
				proxy.pop().outValue.connect(arg.miGeoShader, f=True)

def _gather_exported_alembic_info_():
    cmds.loadPlugin("AbcImport.mll", quiet=True)

    template_obj, fields, tk = _get_shotgun_fields_from_file_name_()

    if not pm.objExists("animatedAlembicGroup"):
        pm.createNode("transform", name="animatedAlembicGroup")

    temp, fields, tk = _get_shotgun_fields_from_file_name_()
    masterAlembicTemplate = tk.templates["master_alembic_cache"]

    alembicFolder = libFile.get_parent_folder(masterAlembicTemplate.apply_fields(fields))

    # Get all the abc files

    exported_alemblic_info = {}
    if libFile.exists(alembicFolder):
        for alembicFile in libFile.listfiles(alembicFolder, "abc"):
            alembicFilePath = libFile.join(alembicFolder, alembicFile)

            # Edited by Chet 
            # Project Kitten Witch 25 May 2016
            # ========================================================
            # Old code that was causing the list of alembics to build
            # niceName =  alembicFile.split(".")[0].split("_")[]

            niceName =  alembicFile.split(".")[0]
            niceName = niceName.split("_")
            niceName = " ".join(niceName[1:])
            exported_alemblic_info[niceName] = alembicFilePath
    return exported_alemblic_info

def createSubdivApproxNode():
    '''
    copy of createApproxNode from mentalrayApproxEditor.mel
    node will be named "mathildaSubdivApprox"
    '''
    # delete existing node if exists
    nodeName = 'mathildaSubdivApprox'
    
    # make sure mental ray is loaded first
    if not pm.pluginInfo('Mayatomr', q=True, loaded=True):
        pm.loadPlugin('Mayatomr', qt=True)
    
    # create approx node
    approxNode = pm.createNode('mentalraySubdivApprox', n=nodeName)
    
    # get listNode
    try:
        mrItemsListNode = pm.ls(type='mentalrayItemsList')[0]
    except IndexError:
        mrItemsListNode = pm.createNode('mentalrayItemsList', n='mentalrayItemsList')
    
    # connect approx to list
    pm.connectAttr(approxNode.message, mrItemsListNode.subdivApproxs, na=True)
    
    return approxNode

    def _create_custom(self):
        self.pos_x_remap.outputMin.set(1)
        self.pos_x_remap.outputMax.set(0)

        self.neg_x_remap.outputMin.set(0)
        self.neg_x_remap.outputMax.set(1)

        NL_mult = pm.createNode("multDoubleLinear", name="%s_NL_mult" % self.prefix)
        NR_mult = pm.createNode("multDoubleLinear", name="%s_NR_mult" % self.prefix)
        SL_mult = pm.createNode("multDoubleLinear", name="%s_SL_mult" % self.prefix)
        SR_mult = pm.createNode("multDoubleLinear", name="%s_SR_mult" % self.prefix)

        self.pos_x_remap.outValue >> NR_mult.input1
        self.pos_y_remap.outValue >> NR_mult.input2
        NR_mult.output >> self.control_group.nShapeR

        self.neg_x_remap.outValue >> NL_mult.input1
        self.pos_y_remap.outValue >> NL_mult.input2
        NL_mult.output >> self.control_group.nShapeL

        self.pos_x_remap.outValue >> SR_mult.input1
        self.neg_y_remap.outValue >> SR_mult.input2
        SR_mult.output >> self.control_group.sShapeR

        self.neg_x_remap.outValue >> SL_mult.input1
        self.neg_y_remap.outValue >> SL_mult.input2
        SL_mult.output >> self.control_group.sShapeL

def createFresnel(out = None):
    #创建菲涅尔节点组合
    #
    #参数out: 属性输出给哪个节点, 连接属性
    #
    #创建节点
    samplerInfo = pm.createNode('samplerInfo', name = 'Fre_samplerInfo_arnold')
    ramp = pm.createNode('ramp', name = 'Fre_ramp_arnold')
    aiUtility, SG = pm.createSurfaceShader('aiUtility', name = 'Fresnel_arnold')
    
    #修改属性
    ramp.interpolation.set("Exponential Down")
    ramp.colorEntryList[2].remove(b=1)
    ramp.colorEntryList[1].position.set(1)
    ramp.colorEntryList[0].color.set(1,1,1)
    ramp.colorEntryList[1].color.set(0,0,0)
    
    aiUtility.shadeMode.set(2)
    
    #链接属性
    samplerInfo.facingRatio >> ramp.uvCoord.uCoord
    samplerInfo.facingRatio >> ramp.uvCoord.vCoord
    
    ramp.outColor >> aiUtility.color

    if out :
        aiUtility.outColor >> out
    else :
        pass
    
    return aiUtility, SG

def createZ(out = None):
    #创建Z通道节点组合
    #
    #参数out: 属性输出给哪个节点, 连接属性
    #
    #创建节点
    samplerInfo = pm.createNode('samplerInfo', name = 'z_samplerInfo_arnold')
    multiplyDivide = pm.createNode('multiplyDivide', name = 'z_multiplyDivide_arnold')
    setRange = pm.createNode('setRange', name = 'z_setRange_arnold')
    aiUtility, SG = pm.createSurfaceShader('aiUtility', name = 'zdp_arnold')
    
    #修改属性
    multiplyDivide.input2X.set(-1)
    
    setRange.minX.set(1)
    setRange.oldMinX.set(0.1)
    setRange.oldMaxX.set(500)
    
    aiUtility.shadeMode.set(2)
    
    #属性链接
    samplerInfo.pointCameraZ >> multiplyDivide.input1X
    multiplyDivide.outputX >> setRange.valueX
    setRange.message >> aiUtility.colorR
    setRange.message >> aiUtility.colorG
    setRange.message >> aiUtility.colorB
    
    if out :
        aiUtility.outColor >> out
    else :
        pass
    
    return aiUtility, SG

def wiggleJointChain(strPnt, endPnt, side='FL', chainPos='Upper'):
    '''
    create joint chain between two points (strPnt & endPnt). require name string of strPnt & endPnt
    '''
    strPos = pm.xform( strPnt, q=True, ws=True, translation=True )
    endPos = pm.xform( endPnt, q=True, ws=True, translation=True )
    
    if side.endswith('L'):
        sideLabel = 1
    elif side.endswith('R'):
        sideLabel = 2
        
    ikSpCrv = pm.curve( degree=2, editPoint=( strPos, endPos) )
    ikSpCrv.rename( 'wiggle_%s_%s_CRV'%(side, chainPos) )
    ikSpCrvShp = ikSpCrv.listRelatives(shapes=True)[0]
    pm.select(clear=True)
    
    jnt2pos = pm.pointOnCurve( ikSpCrv, pr=0.3333, turnOnPercentage=True)
    jnt3pos = pm.pointOnCurve( ikSpCrv, pr=0.6667, turnOnPercentage=True )
    
    jntPos = ( strPos, jnt2pos, jnt3pos, endPos )
    jntList = []
    for pnt in jntPos:
        jName = 'Wiggle_%s_%s_%02d'%(side, chainPos, jntPos.index(pnt)+1)
        newJoint = pm.joint(name=jName, p=pnt)
        newJoint.side.set(sideLabel)
        newJoint.__getattr__('type').set(18)
        newJoint.otherType.set(jName)
        jntList.append(newJoint)
        
    pm.joint( jntList[0], edit=True, orientJoint='xyz', secondaryAxisOrient='xup', children=True, zeroScaleOrient=True )
    
    ikHandle = pm.ikHandle( name='Wiggle_%s_%s_ikHandle'%(side, chainPos),
                            solver='ikSplineSolver', 
                            createCurve=False, 
                            curve=ikSpCrvShp, 
                            startJoint=jntList[0].name(), 
                            endEffector=jntList[-1].name(), 
                            rootOnCurve=False, 
                            createRootAxis=True, 
                            parentCurve=False )
    
    jntGrp = jntList[0].listRelatives(parent=True)[0]
    jntGrp.rename('Wiggle_%s_%s'%(side, chainPos))
    crvInfo = pm.createNode('curveInfo', name='crvInf_wiggle_%s_%s'%(side, chainPos))
    multDiv1 = pm.createNode('multiplyDivide', name='md_wiggle_%s_%s_01'%(side, chainPos))
    multDiv2 = pm.createNode('multiplyDivide', name='md_wiggle_%s_%s_02'%(side, chainPos))
    ikSpCrvShp.worldSpace >> crvInfo.inputCurve
    arcLgt = crvInfo.arcLength.get()
    multDiv1.input2X.set(arcLgt)
    multDiv1.operation.set(2)
    spacing = jntList[1].tx.get()
    multDiv2.input2X.set(spacing)
    multDiv1.outputX >> multDiv2.input1X
    crvInfo.arcLength >> multDiv1.input1X
    
    for jnt in jntList[1:]:
        multDiv2.outputX >> jnt.tx
    
    return ikSpCrvShp, ikSpCrv, ikHandle[0], jntGrp

    def build(self, no_subdiv=False, num_ctrl=None, degree=3, create_ctrl=True, constraint=False, rot_fol=True, *args,
              **kwargs):
        super(Ribbon, self).build(create_grp_anm=create_ctrl, *args, **kwargs)
        if num_ctrl is not None:
            self.num_ctrl = num_ctrl

        nomenclature_rig = self.get_nomenclature_rig()

        # Create the plane and align it with the selected bones
        plane_tran = next(
            (input for input in self.input if libPymel.isinstance_of_shape(input, pymel.nodetypes.NurbsSurface)), None)
        if plane_tran is None:
            plane_name = nomenclature_rig.resolve("ribbonPlane")
            if no_subdiv:  # We don't want any subdivision in the plane, so use only 2 bones to create it
                no_subdiv_degree = 2
                if degree < 2:
                    no_subdiv_degree = degree
                plane_tran = libRigging.create_nurbs_plane_from_joints([self.chain_jnt[0], self.chain_jnt[-1]],
                                                                       degree=no_subdiv_degree, width=self.width)
            else:
                plane_tran = libRigging.create_nurbs_plane_from_joints(self.chain_jnt, degree=degree, width=self.width)
            plane_tran.rename(plane_name)
            plane_tran.setParent(self.grp_rig)
        self._ribbon_shape = plane_tran.getShape()

        # Create the follicule needed for the system on the skinned bones
        self.attach_to_plane(rot_fol)
        # TODO : Support aim constraint for bones instead of follicle rotation?

        follicles_grp = pymel.createNode("transform")
        follicle_grp_name = nomenclature_rig.resolve("follicleGrp")
        follicles_grp.rename(follicle_grp_name)
        follicles_grp.setParent(self.grp_rig)
        for n in self._follicles:
            n.setParent(follicles_grp)

        # Create the joints that will drive the ribbon.
        # TODO: Support other shapes than straight lines...
        self._ribbon_jnts = libRigging.create_chain_between_objects(
            self.chain_jnt.start, self.chain_jnt.end, self.num_ctrl, parented=False)

        # Group all the joints
        ribbon_chain_grp_name = nomenclature_rig.resolve('ribbonChainGrp')
        self.ribbon_chain_grp = pymel.createNode('transform', name=ribbon_chain_grp_name, parent=self.grp_rig)
        align_chain = True if len(self.chain_jnt) == len(self._ribbon_jnts) else False
        for i, jnt in enumerate(self._ribbon_jnts):
            # Align the ribbon joints with the real joint to have a better rotation ctrl
            ribbon_jnt_name = nomenclature_rig.resolve('ribbonJnt{0:02d}'.format(i))
            jnt.rename(ribbon_jnt_name)
            jnt.setParent(self.ribbon_chain_grp)
            if align_chain:
                matrix = self.chain_jnt[i].getMatrix(worldSpace=True)
                jnt.setMatrix(matrix, worldSpace=True)

        # TODO - Improve skinning smoothing by setting manually the skin...
        pymel.skinCluster(list(self._ribbon_jnts), plane_tran, dr=1.0, mi=2.0, omi=True)
        try:
            libSkinning.assign_weights_from_segments(self._ribbon_shape, self._ribbon_jnts, dropoff=1.0)
        except ZeroDivisionError, e:
            pass

def connectLocRotate():
    '''
    '''
    locGrpNames = ['_back',
                   '_left',
                   '_front',
                   '_right',
                   '_leftBack',
                   '_rightBack',
                   '_rightFront',
                   '_leftFront']
    
    # create one nurb circle for all groups
    circ = pm.createNode('makeNurbCircle', n='CT_jacketLocsAlign_circle')
    circ.normal.set(0,1,0)
    # use the same root ctrl for all groups
    rootCtl = pm.PyNode('Mathilda_root_ctrl')
    
    # create one motionpath for each group
    for grpName in locGrpNames:
        mp = pm.createNode('motionPath', n='CT_jacketLocsAlign'+grpName+'_mp')
        circ.outputCurve >> mp.gp
        # use paramater from lowest npc
        pm.PyNode('torsoReader_3'+grpName+'_npc').parameter >> mp.uValue
        rootCtl.worldMatrix >> mp.worldUpMatrix
        mp.worldUpType.set(2)
        mp.worldUpVector.set(0,1,0)
        mp.frontAxis.set(0)
        mp.upAxis.set(1)
        # connect to all locs in grp
        for locId in range(1,10):
            mp.rotate >> pm.PyNode('torsoReader_%d%s_loc.r' %
                                   (locId, grpName))