def writeExportDict( toolName=None, toolVersion=None, **kwargs ): ''' wraps the filesystem method of the same name - and populates the dict with maya specific data ''' d = filesystem.writeExportDict( toolName, toolVersion, **kwargs ) d[ kEXPORT_DICT_SCENE ] = cmd.file( q=True, sn=True ) d[ kEXPORT_DICT_APP_VERSION ] = cmd.about( version=True ) return d
def writeExportDict(toolName=None, toolVersion=None, **kwargs):
'''
wraps the filesystem method of the same name - and populates the dict with maya
specific data
'''
d = filesystem.writeExportDict(toolName, toolVersion, **kwargs)
d[kEXPORT_DICT_SCENE] = cmd.file(q=True, sn=True)
d[kEXPORT_DICT_APP_VERSION] = cmd.about(version=True)
return d
def getWeightsFromDmx( dmxFilepath=None ):
'''
loads a dmx and gathers weight data from the meshes present. the data returned can be fed to the
applyWeights function to effectively transfer skinning data between meshes of differing topology
'''
geoAndData = {}
#define the data we're gathering
joints = {}
jointHierarchies = {}
weightData = []
weightDataAppend = weightData.append
#load the dmx file
dmxFilepath = DmxFile( dmxFilepath )
root = dmxFilepath.read()
model = root.model
#data gathering time!
for mesh in dmxedit.MeshIt( model ):
meshName = mesh.name
state = mesh.currentState
try:
jointWeights = state.jointWeights
jointIndices = state.jointIndices
except AttributeError: continue
jointList = getJointList( mesh )
jointCount = state.jointCount
for idx, pos in enumerate( state.positions ):
baseIdx = idx * jointCount
#generate the weight list first because if the weight is zero, the jointIndex can potentially be bogus
weightList = [ jointWeights[ baseIdx + n ] for n in range( jointCount ) ]
jointIdxList = [ jointIndices[ baseIdx + n ] for n in range( jointCount ) ]
jointNameList = []
append = jointNameList.append
for n, jIdx in enumerate( jointIdxList ):
try: append( jointList[ jIdx ].name )
except IndexError:
assert weightList[ n ] < 1e-6, "weighting refers to a non-existant joint"
append( jointList[ 0 ].name )
#so this is kinda dumb - but using a dict here we can easily remap on restore if joint names
#are different by storing the dict's value as the joint to use, and the key as the joint that
#the vert was originally weighted to
for j in jointNameList:
joints[ j ] = j
pos = pos.x, pos.y, pos.z
vertData = VertSkinWeight( pos )
vertData.populate( meshName, idx, jointNameList, weightList)
weightDataAppend( vertData )
#sort the weightData by ascending x values so we can search faster
weightData = sortByIdx( weightData )
#generate joint hierarchy data - so if joints are missing on load we can find the best match
for elt in jointList:
jointHierarchies[ elt.name ] = [ p for p in iterParents( elt, True ) ]
#generate the misc data for the weights
miscData = writeExportDict( TOOL_NAME, TOOL_VERSION, kEXPORT_DICT_SOURCE=dmxFilepath )
return WeightSaveData( (miscData, joints, jointHierarchies, weightData) )
