def autoSkinToVolumeMesh( mesh, skeletonMeshRoot ):
'''
given a mesh and the root node for a hierarchy mesh volumes, this function will create
a skeleton with the same hierarchy and skin the mesh to this skeleton using the mesh
volumes to determine skin weights
'''
#grab a list of meshes under the hierarchy - we need to grab this geo, parent it to a skeleton and transfer defacto weighting to the given mesh
volumes = listRelatives( skeletonMeshRoot, ad=True, type='mesh', pa=True )
#now generate the skeleton
transforms = removeDupes( listRelatives( volumes, p=True, type='transform', pa=True ) or [] )
jointRemap = {}
for t in transforms:
select( cl=True )
jName = '%s_joint' % t
if objExists( jName ):
jName += '#'
j = joint( n=jName )
jointRemap[ t ] = j
#now do parenting
for t, j in jointRemap.iteritems():
tParent = listRelatives( t, p=True, pa=True )
if tParent:
tParent = tParent[0]
jParent = jointRemap.get( tParent, None )
else:
jParent = None
if jParent is not None:
parent( j, jParent )
#now do positioning
for t in apiExtensions.sortByHierarchy( transforms ):
j = jointRemap[ t ]
pos = xform( t, q=True, ws=True, rp=True )
move( pos[0], pos[1], pos[2], j, ws=True, rpr=True )
#duplicate the geometry and parent the geo to the joints in the skeleton we just created - store the duplicates so we can delete them later
dupes = []
for t, j in jointRemap.iteritems():
dupe = apiExtensions.asMObject( duplicate( t, returnRootsOnly=True, renameChildren=True )[0] )
children = listRelatives( dupe, type='transform', pa=True ) or []
if children:
delete( children )
parent( dupe, j )
dupes.append( dupe )
f = saveWeights( map( str, dupes ) )
loadWeights( [mesh], f, usePosition=True, tolerance=0.5, averageVerts=True, jointNameRemapDict=jointRemap )
delete( dupes )
return jointRemap
def iterPairAndObj( objs ): ''' yields a 2-tuple containing the pair node and the initializing object ''' pairNodesVisited = set() for obj in apiExtensions.sortByHierarchy( objs ): pairNode = ControlPair.GetPairNode( obj ) if pairNode: if pairNode in pairNodesVisited: continue pair = ControlPair( pairNode ) yield pair, obj pairNodesVisited.add( pairNode )
def iterPairAndObj(objs):
'''
yields a 2-tuple containing the pair node and the initializing object
'''
pairNodesVisited = set()
for obj in apiExtensions.sortByHierarchy(objs):
pairNode = ControlPair.GetPairNode(obj)
if pairNode:
if pairNode in pairNodesVisited:
continue
pair = ControlPair(pairNode)
yield pair, obj
pairNodesVisited.add(pairNode)