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UnrealEngine/Engine/Source/ThirdParty/Alembic/alembic-1.8.7/maya/AbcExport/MayaFaceSetWriter.cpp
Brandyn / Techy fcc1b09210 init
2026-04-04 15:40:51 -05:00

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4.1 KiB
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//-*****************************************************************************
//
// Copyright (c) 2009-2019,
// 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.
//
//-*****************************************************************************
#include "MayaFaceSetWriter.h"
#include "MayaUtility.h"
MayaFaceSetWriter::MayaFaceSetWriter(MObject & iNameObj,
std::vector<MPlug> & iPlugVec,
Alembic::Abc::OObject & iParent,
Alembic::Util::uint32_t iTimeIndex,
const JobArgs & iArgs)
{
mPlugVec = iPlugVec;
MFnDependencyNode fnDepNode(iNameObj);
MString faceSetName = fnDepNode.name();
faceSetName = util::stripNamespaces(faceSetName, iArgs.stripNamespace);
MPlug abcFacesetNamePlug = fnDepNode.findPlug("AbcFacesetName", true);
if (!abcFacesetNamePlug.isNull())
{
faceSetName = abcFacesetNamePlug.asString();
}
Alembic::AbcGeom::OFaceSet fs(iParent, faceSetName.asChar(), iTimeIndex);
mSchema = fs.getSchema();
mSchema.setFaceExclusivity(Alembic::AbcGeom::kFaceSetExclusive);
Alembic::Abc::OCompoundProperty cp;
Alembic::Abc::OCompoundProperty up;
if (AttributesWriter::hasAnyAttr(fnDepNode, iArgs))
{
cp = mSchema.getArbGeomParams();
up = mSchema.getUserProperties();
mAttrs = AttributesWriterPtr(new AttributesWriter(cp, up, fs,
fnDepNode, iTimeIndex, iArgs, true));
}
write();
}
void MayaFaceSetWriter::write()
{
std::vector<Alembic::Util::int32_t> faceIndices;
for (std::size_t i = 0; i < mPlugVec.size(); ++i)
{
MObject indexedObj;
MFnComponentListData cmptList(mPlugVec[i].asMObject());
unsigned int numPolyCmpt = 0;
for(unsigned int i = 0; i < cmptList.length(); ++i)
{
if (cmptList[i].apiType() == MFn::kMeshPolygonComponent)
{
indexedObj = cmptList[i];
numPolyCmpt ++;
}
}
MIntArray indices;
// retrieve the face indices
MFnSingleIndexedComponent compFn;
compFn.setObject(indexedObj);
compFn.getElements(indices);
unsigned int numData = indices.length();
std::size_t curIndex = faceIndices.size();
faceIndices.resize(curIndex + numData);
for (unsigned int j = 0; j < numData; ++j)
{
faceIndices[j + curIndex] = indices[j];
}
}
Alembic::AbcGeom::OFaceSetSchema::Sample samp;
samp.setFaces(Alembic::Abc::Int32ArraySample(faceIndices));
mSchema.set(samp);
}