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

132 lines
4.7 KiB
Python

#-******************************************************************************
#
# Copyright (c) 2012 - 2013
# Sony Pictures Imageworks Inc. and
# Industrial Light & Magic, a division of Lucasfilm Entertainment Company Ltd.
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# * Redistributions of source code must retain the above copyright
# 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
# prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#-******************************************************************************
import unittest
from imath import *
from alembic.Abc import *
from alembic.AbcGeom import *
kTranslateOperation = XformOperationType.kTranslateOperation
kTranslateHint = 0
class HashTest(unittest.TestCase):
def writeHierarchy(self, filename):
"""write an oarchive with some matching hierarchies"""
#
# These hashes are only supported in ogawa caches.
oarch = OArchive(filename, asOgawa = True)
#
# a
# / \
# b c
# / \ / \
# d e f g
#
a = OXform(oarch.getTop(), 'a')
b = OXform(a, 'b')
c = OXform(a, 'c')
d = OXform(b, 'd')
e = OXform(b, 'e')
f = OXform(c, 'f')
g = OXform(c, 'g')
bp = OStringProperty(b.getProperties(), "testprop")
dp = OStringProperty(d.getProperties(), "othertestprop")
bp.setValue("the testprop")
dp.setValue("the othertestprop")
transop = XformOp(kTranslateOperation, kTranslateHint)
asamp = XformSample()
asamp.addOp(transop, V3d(-1.0, -1.0, 0.0))
bsamp = XformSample()
bsamp.addOp(transop, V3d( 1.0, -1.0, 0.0))
a.getSchema().set(asamp)
b.getSchema().set(asamp)
c.getSchema().set(bsamp)
d.getSchema().set(asamp)
e.getSchema().set(bsamp)
f.getSchema().set(asamp)
g.getSchema().set(bsamp)
def testHash(self):
filename = 'hash.abc'
self.writeHierarchy(filename)
iarch = IArchive(filename)
a = IObject(iarch.getTop(), 'a')
b = a.getChild('b')
c = a.getChild('c')
d = b.getChild('d')
e = b.getChild('e')
f = c.getChild('f')
g = c.getChild('g')
self.assertTrue(a.valid())
self.assertTrue(b.valid())
self.assertTrue(c.valid())
self.assertTrue(d.valid())
self.assertTrue(e.valid())
self.assertTrue(f.valid())
self.assertTrue(g.valid())
self.assertNotEqual(a.getPropertiesHash(), "")
self.assertNotEqual(a.getChildrenHash(), "")
self.assertNotEqual(b.getPropertiesHash(), "")
self.assertNotEqual(b.getChildrenHash(), "")
self.assertNotEqual(c.getPropertiesHash(), "")
self.assertNotEqual(c.getChildrenHash(), "")
self.assertNotEqual(d.getPropertiesHash(), "")
self.assertNotEqual(d.getChildrenHash(), "")
self.assertNotEqual(e.getPropertiesHash(), "")
self.assertNotEqual(e.getChildrenHash(), "")
self.assertNotEqual(f.getPropertiesHash(), "")
self.assertNotEqual(f.getChildrenHash(), "")
self.assertNotEqual(g.getPropertiesHash(), "")
self.assertNotEqual(g.getChildrenHash(), "")
self.assertNotEqual(b.getPropertiesHash(), d.getPropertiesHash())
self.assertEqual(e.getPropertiesHash(), g.getPropertiesHash())