def loadSMPX(cls, smpx):
iarch = IArchive(str(smpx)) # because alembic hates unicode
try:
top = iarch.getTop()
par = top.children[0]
par = IXform(top, par.getName())
abcMesh = par.children[0]
abcMesh = IPolyMesh(par, abcMesh.getName())
systemSchema = par.getSchema()
props = systemSchema.getUserProperties()
prop = props.getProperty('simplex')
jsString = prop.getValue()
js = json.loads(jsString)
system = cls.loadJSON(js)
system._smpx = smpx
meshSchema = abcMesh.getSchema()
rawFaces = meshSchema.getFaceIndicesProperty().samples[0]
rawCounts = meshSchema.getFaceCountsProperty().samples[0]
system._faces = [i for i in rawFaces]
system._counts = [i for i in rawCounts]
for shape, sample in zip(
system.shapes,
meshSchema.getPositionsProperty().samples):
shape.loadSMPX(sample)
finally:
del iarch
return system
def getMesh(iarch):
'''Load the static mesh data from an alembic archive
Parameters
----------
iarch : IArchive
The input alembic archive
Returns
-------
: imath.IntArray
The Faces array
: imath.IntArray
The Counts array
'''
top = iarch.getTop()
par = top.children[0]
par = IXform(top, par.getName())
abcMesh = par.children[0]
abcMesh = IPolyMesh(par, abcMesh.getName())
sch = abcMesh.getSchema()
faces = sch.getFaceIndicesProperty().samples[0]
counts = sch.getFaceCountsProperty().samples[0]
return faces, counts
def loadMesh(iarch):
top = iarch.getTop()
par = top.children[0]
par = IXform(top, par.getName())
abcMesh = par.children[0]
abcMesh = IPolyMesh(par, abcMesh.getName())
sch = abcMesh.getSchema()
faces = sch.getFaceIndicesProperty().samples[0]
counts = sch.getFaceCountsProperty().samples[0]
return faces, counts
def getMesh(iarch):
''' Load the static mesh data from an alembic archive '''
top = iarch.getTop()
par = top.children[0]
par = IXform(top, par.getName())
abcMesh = par.children[0]
abcMesh = IPolyMesh(par, abcMesh.getName())
sch = abcMesh.getSchema()
faces = sch.getFaceIndicesProperty().samples[0]
counts = sch.getFaceCountsProperty().samples[0]
return faces, counts
def loadSmpx(iarch):
''' Load the json and shape data from a .smpx file '''
top = iarch.getTop()
par = top.children[0]
par = IXform(top, par.getName())
abcMesh = par.children[0]
abcMesh = IPolyMesh(par, abcMesh.getName())
meshSchema = abcMesh.getSchema()
posProp = meshSchema.getPositionsProperty()
shapes = getSampleArray(abcMesh)
print "Done Loading"
return shapes
def loadSmpx(iarch):
top = iarch.getTop()
par = top.children[0]
par = IXform(top, par.getName())
abcMesh = par.children[0]
abcMesh = IPolyMesh(par, abcMesh.getName())
meshSchema = abcMesh.getSchema()
posProp = meshSchema.getPositionsProperty()
shapes = []
lpps = len(posProp.samples)
for i, s in enumerate(posProp.samples):
print "Reading {0: 3d} of {1}\r".format(i, lpps),
shapes.append(s)
print "Reading {0: 3d} of {1}".format(lpps, lpps)
return shapes
def loadSmpx(iarch):
''' Load the json and shape data from a .smpx file '''
top = iarch.getTop()
par = top.children[0]
par = IXform(top, par.getName())
abcMesh = par.children[0]
abcMesh = IPolyMesh(par, abcMesh.getName())
meshSchema = abcMesh.getSchema()
posProp = meshSchema.getPositionsProperty()
print "Loading Verts"
shapes = np.empty((len(posProp.samples), len(posProp.samples[0]), 3))
for i, s in enumerate(posProp.samples):
shapes[i] = arrayToNumpy(s)
print "Done Loading"
return shapes
def parseAbc(path): """ Read an .abc file and produce a Mesh object Args: path: The path to the .abc formatted file Returns: A list of vertices and the face connectivity Raises: IOError: If the file cannot be opened """ iarch = IArchive(str(path)) # because alembic hates unicode top = iarch.getTop() ixfo = IXform(top, top.children[0].getName()) mesh = IPolyMesh(ixfo, ixfo.children[0].getName()) sch = mesh.getSchema() rawVerts = sch.getPositionsProperty().samples[0] rawFaces = sch.getFaceIndicesProperty().samples[0] rawCounts = sch.getFaceCountsProperty().samples[0] faces = [] faceCounter = 0 for count in rawCounts: f = list(rawFaces[faceCounter: faceCounter+count]) # Ignoring UV/Normal data for now faces.append(f) faceCounter += count verts = [] for v in rawVerts: verts.append(list(v)) return verts, faces