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UnrealEngine/Engine/Source/ThirdParty/Alembic/alembic-1.8.7/python/PyAlembic/Tests/testSubDFaceSet.py
2025-05-18 13:04:45 +08:00

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Python

#-******************************************************************************
#
# Copyright (c) 2012-2013,
# Sony Pictures Imageworks Inc. and
# Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
#
# All rights reserved.
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# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Sony Pictures Imageworks, nor
# Industrial Light & Magic, nor the names of their contributors may be used
# to endorse or promote products derived from this software without specific
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#-******************************************************************************
import unittest
from imath import *
from alembic.Abc import *
from alembic.AbcCoreAbstract import MetaData
from alembic.AbcGeom import *
from meshData import *
kFaceSetExclusive = FaceSetExclusivity.kFaceSetExclusive
class SubDTest(unittest.TestCase):
def testSubDFaceSetExport(self):
"""Tests OSubD and OFaceSet"""
archive = OArchive("facesetSubD1.abc")
meshyObj = OSubD(archive.getTop(), "subd")
mesh = meshyObj.getSchema()
mesh.setUVSourceName("Chewbacca")
mesh_samp = OSubDSchemaSample( verts, indices, counts )
creases = IntArray(24)
corners = IntArray(24)
creaseLengths = IntArray(24)
creaseSharpnesses = FloatArray(24)
cornerSharpnesses = FloatArray(24)
for i in range(24):
creases[i] = indices[i]
corners[i] = indices[i]
cornerSharpnesses[i] = 1.0e38
for i in range(6):
creaseLengths[i] = 4
creaseSharpnesses[i] = 1.0e38
mesh_samp.setCreases(creases, creaseLengths, creaseSharpnesses)
mesh_samp.setCorners(corners, cornerSharpnesses)
# UVs
uvsamp = OV2fGeomParamSample(uvs,
GeometryScope.kFacevaryingScope)
mesh_samp.setUVs(uvsamp)
# setIsUV / isUV / getSourceName / setSourceName metadata test.
meta = MetaData()
meta.setIsUV(True)
meta.setSourceName("Illum")
self.assertEqual(meta.getSourceName(), "Illum")
arb = mesh.getArbGeomParams()
uv2 = None
# scoped so it gets added before we check it
if True:
uv2 = OV2fGeomParam( arb, "uv2", True, GeometryScope.kFacevaryingScope, 1, meta )
self.assertTrue(uv2)
header = arb.getPropertyHeader("uv2")
self.assertTrue(header.isUV())
# set the sample
mesh.set(mesh_samp)
# change one of the schema's parameters
mesh_samp.setInterpolateBoundary(1)
mesh.set(mesh_samp)
# test that the integer property doesn't latch to non-zero
mesh_samp.setInterpolateBoundary(0)
mesh.set(mesh_samp)
# faceset testing
faceSetNames = []
my_face_set_obj = mesh.createFaceSet("testing_faceset")
faceSetNames = mesh.getFaceSetNames()
self.assertEqual(len(faceSetNames), 1)
my_face_set = my_face_set_obj.getSchema()
#print "created faceset called", my_face_set_obj.getName()
# our FaceSet is composed of faces 1-3
face_nums = IntArray(3)
face_nums[0] = 1
face_nums[1] = 2
face_nums[2] = 3
my_face_set_samp = OFaceSetSchemaSample(face_nums)
# faceset is visible, doesn't change
my_face_set.set(my_face_set_samp)
my_face_set.setFaceExclusivity(kFaceSetExclusive)
# Test that we've computed selfBounds correctly
face_set_bounds = my_face_set_samp.getSelfBounds()
parentOfFaceSet = my_face_set_obj.getParent()
grandParent = parentOfFaceSet.getParent()
def testSubDFaceSetImport(self):
"""tests ISubD and IFaceSet"""
archive = IArchive("facesetSubD1.abc")
meshyObj = ISubD(archive.getTop(), "subd")
mesh = meshyObj.getSchema()
self.assertEqual(mesh.getNumSamples(), 3)
# faceset testing
self.assertTrue(mesh.hasFaceSet("testing_faceset"))
faceSetNames = mesh.getFaceSetNames()
self.assertEqual(len(faceSetNames), 1)
#for name in faceSetNames:
# print "meshyObj has faceSet", name
self.assertEqual(faceSetNames[0], "testing_faceset")
faceSetObj = mesh.getFaceSet("testing_faceset")
faceSet = faceSetObj.getSchema()
self.assertEqual(faceSet.getFaceExclusivity(), kFaceSetExclusive)
faceSetSamp0 = faceSet.getValue(ISampleSelector(0))
faces = faceSetSamp0.getFaces()
self.assertEqual(faces[0], 1)
self.assertEqual(faces[1], 2)
self.assertEqual(faces[2], 3)
# UVs
uv = mesh.getUVsParam()
self.assertEqual(uv.getMetaData().getSourceName(), "Chewbacca")
self.assertFalse(uv.isIndexed())
arb = mesh.getArbGeomParams()
header = arb.getPropertyHeader("uv2")
self.assertTrue(header.isUV())
meta = header.getMetaData()
self.assertEqual(meta.getSourceName(), "Illum")
# we can fake like the UVs are indexed
uvsamp = uv.getIndexedValue()
self.assertEqual(uvsamp.getIndices()[1], 1)
uv2 = uvsamp.getVals()[2]
self.assertEqual(uv2, V2f(1.0, 1.0))
samp1 = mesh.getValue(ISampleSelector(1))
self.assertEqual(samp1.getSelfBounds().min(), V3d(-1.0, -1.0, -1.0))
self.assertEqual(samp1.getSelfBounds().max(), V3d(1.0, 1.0, 1.0 ))
self.assertEqual(samp1.getInterpolateBoundary(), 1)
samp2 = mesh.getValue(ISampleSelector(2))
self.assertEqual(samp2.getSelfBounds().min(), V3d(-1.0, -1.0, -1.0))
self.assertEqual(samp2.getSelfBounds().max(), V3d(1.0, 1.0, 1.0))
self.assertEqual(samp2.getInterpolateBoundary(), 0)