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

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Python

#-******************************************************************************
#
# Copyright (c) 2012,
# 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.AbcCoreAbstract import *
from alembic.Abc import *
from alembic.AbcGeom import *
testList = []
kScaleFilmBackOperation = FilmBackXformOperationType.kScaleFilmBackOperation
kTranslateFilmBackOperation = FilmBackXformOperationType.kTranslateFilmBackOperation
class CameraTest(unittest.TestCase):
def testCameraExport(self):
"""write out camera archive"""
archive = OArchive("camera1.abc")
simpleCamObj = OCamera(archive.getTop(), "simpleCam")
samp = CameraSample()
simpleCamObj.getSchema().set(samp)
camObj = OCamera(archive.getTop(), "cam")
camSchema = camObj.getSchema()
samp.addOp(FilmBackXformOp(kScaleFilmBackOperation, "scale"))
samp.addOp(FilmBackXformOp(kTranslateFilmBackOperation, "offset"))
self.assertTrue(camObj)
self.assertTrue(camObj.valid())
camSchema.set(samp)
samp[0].setScale(V2d(2.0, 3.0))
samp[1].setChannelValue(0, 4.0)
samp[1].setChannelValue(1, 5.0)
samp.setLensSqueezeRatio(2.0)
samp.setHorizontalAperture(4.8)
samp.setVerticalFilmOffset(3.0)
self.assertEqual(samp[0].getChannelValue(0), 2.0)
camSchema.set(samp)
def testCameraImport(self):
"""read in camera archive"""
archive = IArchive("camera1.abc")
identity = M33d()
identity.makeIdentity()
samp = CameraSample()
simpleCam = ICamera(archive.getTop(), "simpleCam")
cam = ICamera(archive.getTop(), "cam")
self.assertTrue(cam)
self.assertTrue(cam.valid())
# test camera "simpleCam" default values
samp = simpleCam.getSchema().getValue()
self.assertEqual(simpleCam.getSchema().getNumSamples(), 1)
self.assertAlmostEqual(samp.getFocalLength(), 35.0)
self.assertAlmostEqual(samp.getHorizontalAperture(), 3.6)
self.assertAlmostEqual(samp.getVerticalAperture(), 2.4)
self.assertAlmostEqual(samp.getHorizontalFilmOffset(), 0.0)
self.assertAlmostEqual(samp.getVerticalFilmOffset(), 0.0)
self.assertAlmostEqual(samp.getLensSqueezeRatio(), 1.0)
self.assertAlmostEqual(samp.getOverScanLeft(), 0.0)
self.assertAlmostEqual(samp.getOverScanRight(), 0.0)
self.assertAlmostEqual(samp.getOverScanTop(), 0.0)
self.assertAlmostEqual(samp.getOverScanBottom(), 0.0)
self.assertAlmostEqual(samp.getFStop(), 5.6)
self.assertAlmostEqual(samp.getFocusDistance(), 5.0)
self.assertAlmostEqual(samp.getShutterOpen(), 0.0)
self.assertAlmostEqual(samp.getShutterClose(), 0.0208333333333)
self.assertAlmostEqual(samp.getNearClippingPlane(), 0.1)
self.assertAlmostEqual(samp.getFarClippingPlane(), 100000.0)
self.assertEqual(samp.getNumOps(), 0)
self.assertEqual(samp.getNumOpChannels(), 0)
self.assertEqual(samp.getFilmBackMatrix(), identity)
self.assertEqual(cam.getSchema().getNumSamples(), 2)
# test camera "cam" values at sample 0
samp = cam.getSchema().getValue()
self.assertAlmostEqual(samp.getFocalLength(), 35.0)
self.assertAlmostEqual(samp.getHorizontalAperture(), 3.6)
self.assertAlmostEqual(samp.getVerticalAperture(), 2.4)
self.assertAlmostEqual(samp.getHorizontalFilmOffset(), 0.0)
self.assertAlmostEqual(samp.getVerticalFilmOffset(), 0.0)
self.assertAlmostEqual(samp.getLensSqueezeRatio(), 1.0)
self.assertAlmostEqual(samp.getOverScanLeft(), 0.0)
self.assertAlmostEqual(samp.getOverScanRight(), 0.0)
self.assertAlmostEqual(samp.getOverScanTop(), 0.0)
self.assertAlmostEqual(samp.getOverScanBottom(), 0.0)
self.assertAlmostEqual(samp.getFStop(), 5.6)
self.assertAlmostEqual(samp.getFocusDistance(), 5.0)
self.assertAlmostEqual(samp.getShutterOpen(), 0.0)
self.assertAlmostEqual(samp.getShutterClose(), 0.0208333333333)
self.assertAlmostEqual(samp.getNearClippingPlane(), 0.1)
self.assertAlmostEqual(samp.getFarClippingPlane(), 100000.0)
self.assertEqual(samp.getNumOps(), 2)
self.assertEqual(samp.getNumOpChannels(), 4)
self.assertEqual(samp[0].getHint(), "scale")
self.assertEqual(samp[0].getType(), kScaleFilmBackOperation)
self.assertEqual(samp[0].getNumChannels(), 2)
self.assertAlmostEqual(samp[0].getChannelValue(0), 1.0)
self.assertAlmostEqual(samp[0].getChannelValue(1), 1.0)
self.assertEqual(samp[1].getHint(), "offset")
self.assertEqual(samp[1].getType(), kTranslateFilmBackOperation)
self.assertEqual(samp[1].getNumChannels(), 2)
self.assertAlmostEqual(samp[1].getChannelValue(0), 0.0)
self.assertAlmostEqual(samp[1].getChannelValue(1), 0.0)
self.assertEqual(samp.getFilmBackMatrix(), identity)
# test cam values at sample 1
samp = cam.getSchema().getValue(ISampleSelector(1))
self.assertAlmostEqual(samp.getFocalLength(), 35.0)
self.assertAlmostEqual(samp.getHorizontalAperture(), 4.8)
self.assertAlmostEqual(samp.getVerticalAperture(), 2.4)
self.assertAlmostEqual(samp.getHorizontalFilmOffset(), 0.0)
self.assertAlmostEqual(samp.getVerticalFilmOffset(), 3.0)
self.assertAlmostEqual(samp.getLensSqueezeRatio(), 2.0)
self.assertAlmostEqual(samp.getOverScanLeft(), 0.0)
self.assertAlmostEqual(samp.getOverScanRight(), 0.0)
self.assertAlmostEqual(samp.getOverScanTop(), 0.0)
self.assertAlmostEqual(samp.getOverScanBottom(), 0.0)
self.assertAlmostEqual(samp.getFStop(), 5.6)
self.assertAlmostEqual(samp.getFocusDistance(), 5.0)
self.assertAlmostEqual(samp.getShutterOpen(), 0.0)
self.assertAlmostEqual(samp.getShutterClose(), 0.0208333333333)
self.assertAlmostEqual(samp.getNearClippingPlane(), 0.1)
self.assertAlmostEqual(samp.getFarClippingPlane(), 100000.0)
self.assertEqual(samp.getNumOps(), 2)
self.assertEqual(samp.getNumOpChannels(), 4)
self.assertEqual(samp[0].getHint(), "scale")
self.assertEqual(samp[0].getType(), kScaleFilmBackOperation)
self.assertEqual(samp[0].getNumChannels(), 2)
self.assertAlmostEqual(samp[0].getChannelValue(0), 2.0), samp[0].getChannelValue(0)
self.assertAlmostEqual(samp[0].getChannelValue(1), 3.0), samp[0].getChannelValue(1)
self.assertEqual(samp[1].getHint(), "offset")
self.assertEqual(samp[1].getType(), kTranslateFilmBackOperation)
self.assertEqual(samp[1].getNumChannels(), 2)
self.assertAlmostEqual(samp[1].getChannelValue(0), 4.0)
self.assertAlmostEqual(samp[1].getChannelValue(1), 5.0)