Exemple #1
0
MStatus AlembicNode::compute(const MPlug & plug, MDataBlock & dataBlock)
{
    MStatus status;

    // update the frame number to be imported
    MDataHandle speedHandle = dataBlock.inputValue(mSpeedAttr, &status);
    double speed = speedHandle.asDouble();

    MDataHandle offsetHandle = dataBlock.inputValue(mOffsetAttr, &status);
    double offset = offsetHandle.asDouble();

    MDataHandle timeHandle = dataBlock.inputValue(mTimeAttr, &status);
    MTime t = timeHandle.asTime();
    double inputTime = t.as(MTime::kSeconds);

    double fps = getFPS();

    // scale and offset inputTime.
    inputTime = computeAdjustedTime(inputTime, speed, offset/fps);

    // this should be done only once per file
	if (mFileInitialized == false)
	{
		mFileInitialized = true;

		//Get list of input filenames
		MFnDependencyNode depNode(thisMObject());
		MPlug layerFilesPlug = depNode.findPlug("abc_layerFiles");
		MFnStringArrayData fnSAD( layerFilesPlug.asMObject() );
		MStringArray storedFilenames = fnSAD.array();

		//Legacy support for single-filename input
		if( storedFilenames.length() == 0 )
		{
			MFileObject fileObject;
			MDataHandle dataHandle = dataBlock.inputValue(mAbcFileNameAttr);
			fileObject.setRawFullName(dataHandle.asString());
			MString fileName = fileObject.resolvedFullName();
			storedFilenames.append( fileName );
		}

		std::vector<std::string> abcFilenames;
		for(unsigned int i = 0; i < storedFilenames.length(); i++)
			abcFilenames.push_back( storedFilenames[i].asChar() );

		Alembic::Abc::IArchive archive;
		Alembic::AbcCoreFactory::IFactory factory;
		factory.setPolicy(Alembic::Abc::ErrorHandler::kQuietNoopPolicy);

		archive = factory.getArchive( abcFilenames );

		if (!archive.valid())
		{
			MString theError = "Error opening these alembic files: ";

			const unsigned int numFilenames = storedFilenames.length();
			for( unsigned int i = 0; i < numFilenames; i++ )
			{
				theError += storedFilenames[ i ];

				if( i != (numFilenames - 1) )
					theError += ", ";
			}

			printError(theError);
		}

		// initialize some flags for plug update
		mSubDInitialized = false;
		mPolyInitialized = false;

		// When an alembic cache will be imported at the first time using
		// AbcImport, we need to set mIncludeFilterAttr (filterHandle) to be
		// mIncludeFilterString for later use. When we save a maya scene(.ma)
		// mIncludeFilterAttr will be saved. Then when we load the saved
		// .ma file, mIncludeFilterString will be set to be mIncludeFilterAttr.
		MDataHandle includeFilterHandle =
						dataBlock.inputValue(mIncludeFilterAttr, &status);
		MString& includeFilterString = includeFilterHandle.asString();

	   if (mIncludeFilterString.length() > 0)
		{
			includeFilterHandle.set(mIncludeFilterString);
			dataBlock.setClean(mIncludeFilterAttr);
		}
		else if (includeFilterString.length() > 0)
		{
			mIncludeFilterString = includeFilterString;
		}

		MDataHandle excludeFilterHandle =
						dataBlock.inputValue(mExcludeFilterAttr, &status);
		MString& excludeFilterString = excludeFilterHandle.asString();

	   if (mExcludeFilterString.length() > 0)
		{
			excludeFilterHandle.set(mExcludeFilterString);
			dataBlock.setClean(mExcludeFilterAttr);
		}
		else if (excludeFilterString.length() > 0)
		{
			mExcludeFilterString = excludeFilterString;
		}


		MFnDependencyNode dep(thisMObject());
		MPlug allSetsPlug = dep.findPlug("allColorSets");
		CreateSceneVisitor visitor(inputTime, !allSetsPlug.isNull(),
			MObject::kNullObj, CreateSceneVisitor::NONE, "",
			mIncludeFilterString, mExcludeFilterString);

		visitor.walk(archive);

		if (visitor.hasSampledData())
		{
			// information retrieved from the hierarchy traversal
			// and given to AlembicNode to provide update
			visitor.getData(mData);
			mData.getFrameRange(mSequenceStartTime, mSequenceEndTime);
			MDataHandle startFrameHandle = dataBlock.inputValue(mStartFrameAttr,
																&status);
			startFrameHandle.set(mSequenceStartTime*fps);
			MDataHandle endFrameHandle = dataBlock.inputValue(mEndFrameAttr,
																&status);
			endFrameHandle.set(mSequenceEndTime*fps);
		}
	}

    // Retime
    MDataHandle cycleHandle = dataBlock.inputValue(mCycleTypeAttr, &status);
    short playType = cycleHandle.asShort();
    inputTime = computeRetime(inputTime, mSequenceStartTime, mSequenceEndTime,
                              playType);

    clamp<double>(mSequenceStartTime, mSequenceEndTime, inputTime);

    // update only when the time lapse is big enough
    if (fabs(inputTime - mCurTime) > 0.00001)
    {
        mOutRead = std::vector<bool>(mOutRead.size(), false);
        mCurTime = inputTime;
    }

    if (plug == mOutPropArrayAttr)
    {

        if (mOutRead[0])
        {
            dataBlock.setClean(plug);
            return MS::kSuccess;
        }

        mOutRead[0] = true;

        unsigned int propSize =
            static_cast<unsigned int>(mData.mPropList.size());

        if (propSize > 0)
        {
            MArrayDataHandle outArrayHandle = dataBlock.outputValue(
                mOutPropArrayAttr, &status);

            unsigned int outHandleIndex = 0;
            MDataHandle outHandle;

            // for all of the nodes with sampled attributes
            for (unsigned int i = 0; i < propSize; i++)
            {
                // only use the handle if it matches the index.
                // The index wont line up in the sparse case so we
                // can just skip that element.
                if (outArrayHandle.elementIndex() == outHandleIndex++)
                {
                    outHandle = outArrayHandle.outputValue();
                }
                else
                {
                    continue;
                }

                if (mData.mPropList[i].mArray.valid())
                {
                    readProp(mCurTime, mData.mPropList[i].mArray, outHandle);
                }
                else if (mData.mPropList[i].mScalar.valid())
                {
                    // for visibility only
                    if (mData.mPropList[i].mScalar.getName() ==
                        Alembic::AbcGeom::kVisibilityPropertyName)
                    {
                        Alembic::Util::int8_t visVal = 1;
                        mData.mPropList[i].mScalar.get(&visVal,
                            Alembic::Abc::ISampleSelector(mCurTime,
                                Alembic::Abc::ISampleSelector::kNearIndex ));
                        outHandle.setGenericBool(visVal != 0, false);
                    }
                    else
                    {
                        // for all scalar props
                        readProp(mCurTime, mData.mPropList[i].mScalar, outHandle);
                    }
                }
                outArrayHandle.next();
            }
            outArrayHandle.setAllClean();
        }

    }
    else if (plug == mOutTransOpArrayAttr )
    {
        if (mOutRead[1])
        {
            dataBlock.setClean(plug);
            return MS::kSuccess;
        }

        mOutRead[1] = true;

        unsigned int xformSize =
            static_cast<unsigned int>(mData.mXformList.size());

        if (xformSize > 0)
        {
            MArrayDataHandle outArrayHandle =
                dataBlock.outputValue(mOutTransOpArrayAttr, &status);

            MPlug arrayPlug(thisMObject(), mOutTransOpArrayAttr);

            MDataHandle outHandle;
            unsigned int outHandleIndex = 0;

            for (unsigned int i = 0; i < xformSize; i++)
            {
                std::vector<double> sampleList;

                if (mData.mIsComplexXform[i])
                {
                    readComplex(mCurTime, mData.mXformList[i], sampleList);
                }
                else
                {
                    Alembic::AbcGeom::XformSample samp;
                    read(mCurTime, mData.mXformList[i], sampleList, samp);
                }

                unsigned int sampleSize = (unsigned int)sampleList.size();

                for (unsigned int j = 0; j < sampleSize; j++)
                {
                    // only use the handle if it matches the index.
                    // The index wont line up in the sparse case so we
                    // can just skip that element.
                    if (outArrayHandle.elementIndex() == outHandleIndex++)
                    {
                        outHandle = outArrayHandle.outputValue(&status);
                    }
                    else
                        continue;

                    outArrayHandle.next();
                    outHandle.set(sampleList[j]);
                }
            }
            outArrayHandle.setAllClean();
        }
    }
    else if (plug == mOutLocatorPosScaleArrayAttr )
    {
        if (mOutRead[8])
        {
            dataBlock.setClean(plug);
            return MS::kSuccess;
        }

        mOutRead[8] = true;

        unsigned int locSize =
            static_cast<unsigned int>(mData.mLocList.size());

        if (locSize > 0)
        {
            MArrayDataHandle outArrayHandle =
                dataBlock.outputValue(mOutLocatorPosScaleArrayAttr, &status);

            MPlug arrayPlug(thisMObject(), mOutLocatorPosScaleArrayAttr);

            MDataHandle outHandle;
            unsigned int outHandleIndex = 0;

            for (unsigned int i = 0; i < locSize; i++)
            {
                std::vector< double > sampleList;
                read(mCurTime, mData.mLocList[i], sampleList);

                unsigned int sampleSize = (unsigned int)sampleList.size();
                for (unsigned int j = 0; j < sampleSize; j++)
                {
                    // only use the handle if it matches the index.
                    // The index wont line up in the sparse case so we
                    // can just skip that element.
                    if (outArrayHandle.elementIndex() == outHandleIndex++)
                    {
                        outHandle = outArrayHandle.outputValue(&status);
                    }
                    else
                        continue;

                    outArrayHandle.next();
                    outHandle.set(sampleList[j]);
                }
            }
            outArrayHandle.setAllClean();
        }
    }
    else if (plug == mOutSubDArrayAttr)
    {
        if (mOutRead[2])
        {
            // Reference the output to let EM know we are the writer
            // of the data. EM sets the output to holder and causes
            // race condition when evaluating fan-out destinations.
            MArrayDataHandle outArrayHandle =
                dataBlock.outputValue(mOutSubDArrayAttr, &status);
            const unsigned int elementCount = outArrayHandle.elementCount();
            for (unsigned int j = 0; j < elementCount; j++)
            {
                outArrayHandle.outputValue().data();
                outArrayHandle.next();
            }
            outArrayHandle.setAllClean();
            return MS::kSuccess;
        }

        mOutRead[2] = true;

        unsigned int subDSize =
            static_cast<unsigned int>(mData.mSubDList.size());

        if (subDSize > 0)
        {
            MArrayDataHandle outArrayHandle = dataBlock.outputValue(
                mOutSubDArrayAttr, &status);

            MDataHandle outHandle;

            for (unsigned int j = 0; j < subDSize; j++)
            {
                // these elements can be sparse if they have been deleted
                if (outArrayHandle.elementIndex() != j)
                {
                    continue;
                }

                outHandle = outArrayHandle.outputValue(&status);
                outArrayHandle.next();

                MObject obj = outHandle.data();
                if (obj.hasFn(MFn::kMesh))
                {
                    MFnMesh fnMesh(obj);
                    readSubD(mCurTime, fnMesh, obj, mData.mSubDList[j],
                        mSubDInitialized);
                    outHandle.set(obj);
                }
            }
            mSubDInitialized = true;
            outArrayHandle.setAllClean();
        }
        // for the case where we don't have any nodes, we want to make sure
        // to push out empty meshes on our connections, this can happen if
        // the input file was offlined, currently we only need to do this for
        // meshes as Nurbs, curves, and the other channels don't crash Maya
        else
        {
            MArrayDataHandle outArrayHandle = dataBlock.outputValue(
                mOutSubDArrayAttr, &status);

            if (outArrayHandle.elementCount() > 0)
            {
                do
                {
                    MDataHandle outHandle = outArrayHandle.outputValue();
                    MObject obj = outHandle.data();
                    if (obj.hasFn(MFn::kMesh))
                    {
                        MFloatPointArray emptyVerts;
                        MIntArray emptyCounts;
                        MIntArray emptyConnects;
                        MFnMesh emptyMesh;
                        emptyMesh.create(0, 0, emptyVerts, emptyCounts,
                            emptyConnects, obj);
                        outHandle.set(obj);
                    }
                }
                while (outArrayHandle.next() == MS::kSuccess);
            }
            mSubDInitialized = true;
            outArrayHandle.setAllClean();
        }
    }
    else if (plug == mOutPolyArrayAttr)
    {
        if (mOutRead[3])
        {
            // Reference the output to let EM know we are the writer
            // of the data. EM sets the output to holder and causes
            // race condition when evaluating fan-out destinations.
            MArrayDataHandle outArrayHandle =
                dataBlock.outputValue(mOutPolyArrayAttr, &status);
            const unsigned int elementCount = outArrayHandle.elementCount();
            for (unsigned int j = 0; j < elementCount; j++)
            {
                outArrayHandle.outputValue().data();
                outArrayHandle.next();
            }
            outArrayHandle.setAllClean();
            return MS::kSuccess;
        }

        mOutRead[3] = true;

        unsigned int polySize =
            static_cast<unsigned int>(mData.mPolyMeshList.size());

        if (polySize > 0)
        {
            MArrayDataHandle outArrayHandle =
                dataBlock.outputValue(mOutPolyArrayAttr, &status);

            MDataHandle outHandle;

            for (unsigned int j = 0; j < polySize; j++)
            {
                // these elements can be sparse if they have been deleted
                if (outArrayHandle.elementIndex() != j)
                {
                    continue;
                }

                outHandle = outArrayHandle.outputValue(&status);
                outArrayHandle.next();

                MObject obj = outHandle.data();
                if (obj.hasFn(MFn::kMesh))
                {
                    MFnMesh fnMesh(obj);
                    readPoly(mCurTime, fnMesh, obj, mData.mPolyMeshList[j],
                        mPolyInitialized);
                    outHandle.set(obj);
                }
            }
            mPolyInitialized = true;
            outArrayHandle.setAllClean();
        }
        // for the case where we don't have any nodes, we want to make sure
        // to push out empty meshes on our connections, this can happen if
        // the input file was offlined, currently we only need to do this for
        // meshes as Nurbs, curves, and the other channels don't crash Maya
        else
        {
            MArrayDataHandle outArrayHandle = dataBlock.outputValue(
                mOutPolyArrayAttr, &status);

            if (outArrayHandle.elementCount() > 0)
            {
                do
                {
                    MDataHandle outHandle = outArrayHandle.outputValue(&status);
                    MObject obj = outHandle.data();
                    if (obj.hasFn(MFn::kMesh))
                    {
                        MFloatPointArray emptyVerts;
                        MIntArray emptyCounts;
                        MIntArray emptyConnects;
                        MFnMesh emptyMesh;
                        emptyMesh.create(0, 0, emptyVerts, emptyCounts,
                            emptyConnects, obj);
                        outHandle.set(obj);
                    }
                }
                while (outArrayHandle.next() == MS::kSuccess);
            }
            mPolyInitialized = true;
            outArrayHandle.setAllClean();
        }
    }
    else if (plug == mOutCameraArrayAttr)
    {
        if (mOutRead[4])
        {
            dataBlock.setClean(plug);
            return MS::kSuccess;
        }

        mOutRead[4] = true;

        unsigned int cameraSize =
            static_cast<unsigned int>(mData.mCameraList.size());

        if (cameraSize > 0)
        {
            MArrayDataHandle outArrayHandle =
                dataBlock.outputValue(mOutCameraArrayAttr, &status);
            MPlug arrayPlug(thisMObject(), mOutCameraArrayAttr);
            double angleConversion = 1.0;

            switch (MAngle::uiUnit())
            {
                case MAngle::kRadians:
                    angleConversion = 0.017453292519943295;
                break;
                case MAngle::kAngMinutes:
                    angleConversion = 60.0;
                break;
                case MAngle::kAngSeconds:
                    angleConversion = 3600.0;
                break;
                default:
                break;
            }

            MDataHandle outHandle;
            unsigned int index = 0;

            for (unsigned int cameraIndex = 0; cameraIndex < cameraSize;
                cameraIndex++)
            {
                Alembic::AbcGeom::ICamera & cam =
                    mData.mCameraList[cameraIndex];
                std::vector<double> array;

                read(mCurTime, cam, array);

                for (unsigned int dataIndex = 0; dataIndex < array.size();
                    dataIndex++, index++)
                {
                    // skip over sparse elements
                    if (index != outArrayHandle.elementIndex())
                    {
                        continue;
                    }

                    outHandle = outArrayHandle.outputValue(&status);
                    outArrayHandle.next();

                    // not shutter angle index, so not an angle
                    if (dataIndex != 11)
                    {
                        outHandle.set(array[dataIndex]);
                    }
                    else
                    {
                        outHandle.set(array[dataIndex] * angleConversion);
                    }
                }  // for the per camera data handles
            }  // for each camera
            outArrayHandle.setAllClean();
        }
    }
    else if (plug == mOutNurbsSurfaceArrayAttr)
    {
        if (mOutRead[5])
        {
            // Reference the output to let EM know we are the writer
            // of the data. EM sets the output to holder and causes
            // race condition when evaluating fan-out destinations.
            MArrayDataHandle outArrayHandle =
                dataBlock.outputValue(mOutNurbsSurfaceArrayAttr, &status);
            const unsigned int elementCount = outArrayHandle.elementCount();
            for (unsigned int j = 0; j < elementCount; j++)
            {
                outArrayHandle.outputValue().data();
                outArrayHandle.next();
            }
            outArrayHandle.setAllClean();
            return MS::kSuccess;
        }

        mOutRead[5] = true;

        unsigned int nSurfaceSize =
            static_cast<unsigned int>(mData.mNurbsList.size());

        if (nSurfaceSize > 0)
        {
            MArrayDataHandle outArrayHandle =
                dataBlock.outputValue(mOutNurbsSurfaceArrayAttr, &status);

            MDataHandle outHandle;

            for (unsigned int j = 0; j < nSurfaceSize; j++)
            {
                // these elements can be sparse if they have been deleted
                if (outArrayHandle.elementIndex() != j)
                    continue;

                outHandle = outArrayHandle.outputValue(&status);
                outArrayHandle.next();

                MObject obj = outHandle.data();
                if (obj.hasFn(MFn::kNurbsSurface))
                {
                    readNurbs(mCurTime, mData.mNurbsList[j], obj);
                    outHandle.set(obj);
                }
            }
            outArrayHandle.setAllClean();
        }
    }
    else if (plug == mOutNurbsCurveGrpArrayAttr)
    {
        if (mOutRead[6])
        {
            // Reference the output to let EM know we are the writer
            // of the data. EM sets the output to holder and causes
            // race condition when evaluating fan-out destinations.
            MArrayDataHandle outArrayHandle =
                dataBlock.outputValue(mOutNurbsCurveGrpArrayAttr, &status);
            const unsigned int elementCount = outArrayHandle.elementCount();
            for (unsigned int j = 0; j < elementCount; j++)
            {
                outArrayHandle.outputValue().data();
                outArrayHandle.next();
            }
            outArrayHandle.setAllClean();
            return MS::kSuccess;
        }

        mOutRead[6] = true;

        unsigned int nCurveGrpSize =
            static_cast<unsigned int>(mData.mCurvesList.size());

        if (nCurveGrpSize > 0)
        {
            MArrayDataHandle outArrayHandle =
                dataBlock.outputValue(mOutNurbsCurveGrpArrayAttr, &status);
            MDataHandle outHandle;

            std::vector<MObject> curvesObj;
            for (unsigned int i = 0; i < nCurveGrpSize; ++i)
            {
                readCurves(mCurTime, mData.mCurvesList[i],
                    mData.mNumCurves[i], curvesObj);
            }

            std::size_t numChild = curvesObj.size();

            // not the best way to do this
            // only reading bunches of curves based on the connections would be
            // more efficient when there is a bunch of broken connections
            for (unsigned int i = 0; i < numChild; i++)
            {
                if (outArrayHandle.elementIndex() != i)
                {
                    continue;
                }

                outHandle = outArrayHandle.outputValue(&status);
                outArrayHandle.next();
                status = outHandle.set(curvesObj[i]);
            }

            outArrayHandle.setAllClean();
        }
    }
    else
    {
        return MS::kUnknownParameter;
    }

    dataBlock.setClean(plug);
    return status;
}
Exemple #2
0
int main(int argc, char *argv[])
{

    std::string toType;
    std::string inFile;
    std::string outFile;
    std::string forceStr;

    if (argc == 4)
    {
        toType = argv[1];
        inFile = argv[2];
        outFile = argv[3];
    }
    else if (argc == 5)
    {
        forceStr = argv[1];
        toType = argv[2];
        inFile = argv[3];
        outFile = argv[4];
    }

    if ((argc == 4 || argc == 5) && (forceStr.empty() || forceStr == "-force"))
    {
        if (inFile == outFile)
        {
            printf("Error: inFile and outFile must not be the same!\n");
            return 1;
        }

        if (toType != "-toHDF" && toType != "-toOgawa")
        {
            printf("Error: Unknown conversion type specified %s\n",
                   toType.c_str());
            printf("Currently only -toHDF and -toOgawa are supported.\n");
            return 1;
        }

        Alembic::AbcCoreFactory::IFactory factory;
        Alembic::AbcCoreFactory::IFactory::CoreType coreType;
        Alembic::Abc::IArchive archive = factory.getArchive(inFile, coreType);
        if (!archive.valid())
        {
            printf("Error: Invalid Alembic file specified: %s\n",
                   inFile.c_str());
            return 1;
        }
        else if ( forceStr != "-force" && (
            (coreType == Alembic::AbcCoreFactory::IFactory::kHDF5 &&
             toType == "-toHDF") ||
            (coreType == Alembic::AbcCoreFactory::IFactory::kOgawa &&
             toType == "-toOgawa")) )
        {
            printf("Warning: Alembic file specified: %s\n",inFile.c_str());
            printf("is already of the type you want to convert to.\n");
            printf("Please specify -force if you want to do this anyway.\n");
            return 1;
        }

        Alembic::Abc::IObject inTop = archive.getTop();
        Alembic::Abc::OArchive outArchive;
        if (toType == "-toHDF")
        {
            outArchive = Alembic::Abc::OArchive(
                Alembic::AbcCoreHDF5::WriteArchive(),
                outFile, inTop.getMetaData(),
                Alembic::Abc::ErrorHandler::kThrowPolicy);
        }
        else if (toType == "-toOgawa")
        {
            outArchive = Alembic::Abc::OArchive(
                Alembic::AbcCoreOgawa::WriteArchive(),
                outFile, inTop.getMetaData(),
                Alembic::Abc::ErrorHandler::kThrowPolicy);
        }

        // start at 1, we don't need to worry about intrinsic default case
        for (Alembic::Util::uint32_t i = 1; i < archive.getNumTimeSamplings();
             ++i)
        {
            outArchive.addTimeSampling(*archive.getTimeSampling(i));
        }

        Alembic::Abc::OObject outTop = outArchive.getTop();
        copyObject(inTop, outTop);
        return 0;
    }

    printf ("Usage: abcconvert [-force] OPTION inFile outFile\n");
    printf ("Used to convert an Alembic file from one type to another.\n\n");
    printf ("If -force is not provided and inFile happens to be the same\n");
    printf ("type as OPTION no conversion will be done and a message will\n");
    printf ("be printed out.\n");
    printf ("OPTION has to be one of these:\n\n");
    printf ("  -toHDF   Convert to HDF.\n");
    printf ("  -toOgawa Convert to Ogawa.\n");

    return 1;
}
int main(int argc, char *argv[])
{
    ConversionOptions options;
    bool doConversion = false;

    if (parseArgs( argc, argv, options, doConversion ) == false)
        return 1;

    if (doConversion)
    {
        for( std::vector<std::string>::const_iterator inFile = options.inFiles.begin(); inFile != options.inFiles.end(); inFile++ )
        {
            if (*inFile == options.outFile)
            {
                printf("Error: inFile and outFile must not be the same!\n");
                return 1;
            }
        }

        if (options.toType != IFactoryNS::kHDF5 && options.toType != IFactoryNS::kOgawa)
        {
            printf("Currently only -toHDF and -toOgawa are supported.\n");
            return 1;
        }

        Alembic::AbcCoreFactory::IFactory factory;
        Alembic::AbcCoreFactory::IFactory::CoreType coreType;

        Alembic::Abc::IArchive archive;
        if(options.inFiles.size() == 1)
        {
            archive = factory.getArchive(*options.inFiles.begin(), coreType);
            if (!archive.valid())
            {
                printf("Error: Invalid Alembic file specified: %s\n",
                       options.inFiles.begin()->c_str());
                return 1;
            }
            else if ( !options.force && (
                (coreType == IFactoryNS::kHDF5 &&
                 options.toType == IFactoryNS::kHDF5) ||
                (coreType == IFactoryNS::kOgawa &&
                 options.toType == IFactoryNS::kOgawa)) )
            {
                printf("Warning: Alembic file specified: %s\n", options.inFiles.begin()->c_str());
                printf("is already of the type you want to convert to.\n");
                printf("Please specify -force if you want to do this anyway.\n");
                return 1;
            }
        }
        else
        {
            archive = factory.getArchive(options.inFiles, coreType);
        }

        Alembic::Abc::IObject inTop = archive.getTop();
        Alembic::Abc::OArchive outArchive;
        if (options.toType == IFactoryNS::kHDF5)
        {
            outArchive = Alembic::Abc::OArchive(
                Alembic::AbcCoreHDF5::WriteArchive(),
                options.outFile, inTop.getMetaData(),
                Alembic::Abc::ErrorHandler::kThrowPolicy);
        }
        else if (options.toType == IFactoryNS::kOgawa)
        {
            outArchive = Alembic::Abc::OArchive(
                Alembic::AbcCoreOgawa::WriteArchive(),
                options.outFile, inTop.getMetaData(),
                Alembic::Abc::ErrorHandler::kThrowPolicy);
        }

        // start at 1, we don't need to worry about intrinsic default case
        for (Alembic::Util::uint32_t i = 1; i < archive.getNumTimeSamplings();
             ++i)
        {
            outArchive.addTimeSampling(*archive.getTimeSampling(i));
        }

        Alembic::Abc::OObject outTop = outArchive.getTop();
        copyObject(inTop, outTop);
    }

    return 0;
}