def getAbcFaces(mesh):
# Get the MDagPath from the name of the mesh
sl = om.MSelectionList()
sl.add(mesh)
thing = om.MDagPath()
sl.getDagPath(0, thing)
meshFn = om.MFnMesh(thing)
faces = []
faceCounts = []
#uvArray = []
uvIdxArray = []
vIdx = om.MIntArray()
util = om.MScriptUtil()
util.createFromInt(0)
uvIdxPtr = util.asIntPtr()
uArray = om.MFloatArray()
vArray = om.MFloatArray()
meshFn.getUVs(uArray, vArray)
hasUvs = uArray.length() > 0
for i in range(meshFn.numPolygons()):
meshFn.getPolygonVertices(i, vIdx)
face = []
for j in reversed(xrange(vIdx.length())):
face.append(vIdx[j])
if hasUvs:
meshFn.getPolygonUVid(i, j, uvIdxPtr)
uvIdx = util.getInt(uvIdxPtr)
if uvIdx >= uArray.length() or uvIdx < 0:
uvIdx = 0
uvIdxArray.append(uvIdx)
face = [vIdx[j] for j in reversed(xrange(vIdx.length()))]
faces.extend(face)
faceCounts.append(vIdx.length())
abcFaceIndices = IntArray(len(faces))
for i in xrange(len(faces)):
abcFaceIndices[i] = faces[i]
abcFaceCounts = IntArray(len(faceCounts))
for i in xrange(len(faceCounts)):
abcFaceCounts[i] = faceCounts[i]
if hasUvs:
abcUVArray = V2fArray(len(uArray))
for i in xrange(len(uArray)):
abcUVArray[i] = (uArray[i], vArray[i])
abcUVIdxArray = UnsignedIntArray(len(uvIdxArray))
for i in xrange(len(uvIdxArray)):
abcUVIdxArray[i] = uvIdxArray[i]
uv = OV2fGeomParamSample(abcUVArray, abcUVIdxArray,
GeometryScope.kFacevaryingScope)
else:
uv = None
return abcFaceIndices, abcFaceCounts, uv
def mkSampleUvArray(uvs):
""" Makes the alembic-usable c++ typed arrays """
array = V2fArray(len(uvs))
setter = V2f(0, 0)
for i in xrange(len(uvs)):
setter.setValue(uvs[i][0], uvs[i][1])
array[i] = setter
return array
def mkSampleUvArray(uvs): ''' Make an imath array of uvs Parameters ---------- uvs : list or np.array The input uvs Returns ------- : V2fArray The output list ''' array = V2fArray(len(uvs)) setter = V2f(0, 0) for i in xrange(len(uvs)): setter.setValue(uvs[i][0], uvs[i][1]) array[i] = setter return array