C++ MDataHandle::asTime方法代码示例

MStatus animCube::compute(const MPlug& plug, MDataBlock& data)

{
	MStatus returnStatus;

	if (plug == outputMesh) {
		/* Get time */
		MDataHandle timeData = data.inputValue( time, &returnStatus ); 
		McheckErr(returnStatus, "Error getting time data handle\n");
		MTime time = timeData.asTime();

		/* Get output object */

		MDataHandle outputHandle = data.outputValue(outputMesh, &returnStatus);
		McheckErr(returnStatus, "ERROR getting polygon data handle\n");

		MFnMeshData dataCreator;
		MObject newOutputData = dataCreator.create(&returnStatus);
		McheckErr(returnStatus, "ERROR creating outputData");

		createMesh(time, newOutputData, returnStatus);
		McheckErr(returnStatus, "ERROR creating new Cube");

		outputHandle.set(newOutputData);
		data.setClean( plug );
	} else
		return MS::kUnknownParameter;

	return MS::kSuccess;
}

MStatus ClothSimMayaPlugin::compute(const MPlug& plug, MDataBlock& data)
{
	MStatus returnStatus;

	if (plug == g_aOutputMesh)
	{
		MDataHandle timeData = data.inputValue(g_aTime, &returnStatus);
		McheckErr(returnStatus, "Error getting time data handle\n");
		MTime time = timeData.asTime();

		/* Get output object */

		MDataHandle outputHandle = data.outputValue(g_aOutputMesh, &returnStatus);
		McheckErr(returnStatus, "ERROR getting polygon data handle\n");

		MFnMeshData dataCreator;
		MObject newOutputData = dataCreator.create(&returnStatus);
		McheckErr(returnStatus, "ERROR creating outputData");

		createMesh(time, newOutputData, returnStatus);
		if (!returnStatus)
		{
			std::cerr << "ERROR creating new Cube: " << returnStatus.errorString() << std::endl;
			return returnStatus;
		}

		outputHandle.set(newOutputData);
		data.setClean(plug);
	}
	else
		return MS::kUnknownParameter;

	return MS::kSuccess;
}

MStatus timeControl::compute( const MPlug& plug, MDataBlock& data )
{
	MStatus status;

	MDataHandle hInTime = data.inputValue( aInTime );
	MDataHandle hOffset = data.inputValue( aOffset );
	MDataHandle hMult = data.inputValue( aMult );
	MDataHandle hMinTime = data.inputValue( aMinTime );
	MDataHandle hMaxTime = data.inputValue( aMaxTime );
	MDataHandle hLimitAble = data.inputValue( aLimitAble );

	MTime inTime = hInTime.asTime();
	
	double offset = hOffset.asDouble();
	double mult = hMult.asDouble();

	double timeValue = inTime.value();
	
	if( hLimitAble.asBool() )
	{
		MTime minTime = hMinTime.asTime();
		MTime maxTime = hMaxTime.asTime();
		double minTimeValue = minTime.value();
		double maxTimeValue = maxTime.value();
		if( timeValue < minTimeValue )
			timeValue = minTimeValue;
		if( timeValue > maxTimeValue )
			timeValue = maxTimeValue;
	}

	timeValue += offset;
	timeValue *= mult;

	MTime outTime( timeValue );

	MDataHandle hOutTime = data.outputValue( aOutTime );
	hOutTime.set( outTime );

	MDataHandle hWeight = data.inputValue( aWeight );
	MDataHandle hOutWeight = data.outputValue( aOutWeight );
	hOutWeight.set( hWeight.asDouble() );

	data.setClean( plug );

	return status;
}

MStatus LSystemNode::compute(const MPlug& plug, MDataBlock& data)
{
        MStatus returnStatus;

        if (plug == outputMesh) {
			//angle
			MDataHandle angleData = data.inputValue(angle,&returnStatus);
			McheckErr(returnStatus, "Error getting angle data handle\n");
			double angle = angleData.asDouble();
			//step
			MDataHandle stepData = data.inputValue(step,&returnStatus);
			McheckErr(returnStatus, "Error getting step data handle\n");
			double step = stepData.asDouble();
			//grammar
			MDataHandle grammarData = data.inputValue(grammar,&returnStatus);
			McheckErr(returnStatus, "Error getting grammar data handle\n");
			MString grammar = grammarData.asString();

                /* Get time */
                MDataHandle timeData = data.inputValue( time, &returnStatus ); 
                McheckErr(returnStatus, "Error getting time data handle\n");
                MTime time = timeData.asTime();

                /* Get output object */

                MDataHandle outputHandle = data.outputValue(outputMesh, &returnStatus);
                McheckErr(returnStatus, "ERROR getting polygon data handle\n");

                MFnMeshData dataCreator;
                MObject newOutputData = dataCreator.create(&returnStatus);
                McheckErr(returnStatus, "ERROR creating outputData");

                createMesh(angle, step, grammar, time, newOutputData, returnStatus);
                McheckErr(returnStatus, "ERROR creating new Cube");

                outputHandle.set(newOutputData);
                data.setClean( plug );
        } else
        return MS::kUnknownParameter;
		return MS::kSuccess;
}

MStatus simpleEvaluationNode::compute( const MPlug& plug, MDataBlock& data )
{
	
	MStatus returnStatus;
 
	if( plug == output )
	{
		MDataHandle inputData = data.inputValue( input, &returnStatus );

		if( returnStatus != MS::kSuccess )
        {
			cerr << "ERROR getting data" << endl;
        }
		else
		{
            MDataHandle inputTimeData = data.inputValue( aTimeInput, &returnStatus );
		    if( returnStatus != MS::kSuccess )
            {
			    cerr << "ERROR getting data" << endl;
            }
            else
            {
                if ( ! cachedValueIsValid )
                {
                    MTime time = inputTimeData.asTime();
			        cachedValue = doExpensiveCalculation( inputData.asFloat() , (float) time.value() );
                    cachedValueIsValid = true;
                }
			    MDataHandle outputHandle = data.outputValue( simpleEvaluationNode::output );
			    outputHandle.set( cachedValue );
			    data.setClean(plug);
            }
		}
	} else {
		return MS::kUnknownParameter;
	}

	return MS::kSuccess;
}

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;

        MDataHandle dataHandle = dataBlock.inputValue(mAbcFileNameAttr);
        MFileObject fileObject;
        fileObject.setRawFullName(dataHandle.asString());
        MString fileName = fileObject.resolvedFullName();

        // TODO, make sure the file name, or list of files create a valid
        // Alembic IArchive

        // 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);

        {
           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);
//.........这里部分代码省略.........

//----------------------------------------------------------------------------------------------------------------------
// This method should be overridden in user defined nodes.
// Recompute the given output based on the nodes inputs.
// The plug represents the data value that needs to be recomputed, and the data block holds the storage
// for all of the node'_scale attributes.
//----------------------------------------------------------------------------------------------------------------------
MStatus OceanNode::compute( const MPlug &_plug , MDataBlock &_data ){
    MStatus status;
    // see if we get the output plug
    if( _plug == m_output){    

        MDataHandle dataHandle;

        dataHandle = _data.inputValue(m_resolution, &status);
        CHECK_STATUS_AND_RETURN_MSTATUS_IF_FAIL(status, "Unable to get data handle for resolution plug");

        if (m_res != dataHandle.asInt()){
            switch(dataHandle.asInt()){
                case 0:
                    m_ocean->setResolution(128);
                    MGlobal::displayInfo("Resolution: 128");
                    break;
                case 1:
                    m_ocean->setResolution(256);
                    MGlobal::displayInfo("Resolution: 256");
                    break;
                case 2:
                    m_ocean->setResolution(512);
                    MGlobal::displayInfo("Resolution: 512");
                    break;
                case 3:
                    m_ocean->setResolution(1024);
                    MGlobal::displayInfo("Resolution: 1024");
                    break;
                default:
                    break;
            }
            m_res = dataHandle.asInt();
        }

        dataHandle = _data.inputValue( m_amplitude , &status );
        CHECK_STATUS_AND_RETURN_MSTATUS_IF_FAIL( status , "Unable to get data handle for amplitude plug" );
        // now get the value for the data handle as a double
        double amp = dataHandle.asDouble();
        m_ocean->setAmplitude(amp);

        dataHandle = _data.inputValue(m_frequency, &status);
        CHECK_STATUS_AND_RETURN_MSTATUS_IF_FAIL(status, "Unable to get handle for \"frequency\" plug");
        double freq = dataHandle.asDouble();
        m_ocean->setFrequency(freq);

        dataHandle = _data.inputValue(m_windDirectionX, &status);
        CHECK_STATUS_AND_RETURN_MSTATUS_IF_FAIL(status, "Unable to get data handle for windDirectionX plug");
        // now get value for data handle
        double wdx = dataHandle.asDouble();
        dataHandle = _data.inputValue(m_windDirectionZ, &status);
        CHECK_STATUS_AND_RETURN_MSTATUS_IF_FAIL(status, "Unable to get data handle for windDirectionY plug");
        // now get value for data handle
        double wdz = dataHandle.asDouble();
        m_ocean->setWindVector(make_float2(wdx, wdz));

        dataHandle = _data.inputValue(m_windSpeed, &status);
        CHECK_STATUS_AND_RETURN_MSTATUS_IF_FAIL(status, "Unable to get data handle for windSpeed plug");
        // now get value for data handle
        double ws = dataHandle.asDouble();
        m_ocean->setWindSpeed(ws);

        // Only create a new frequency domain if either amplitude or the wind vecotr has changed
        if (m_amp != amp || m_wdx != wdx || m_wdz != wdz || m_ws != ws ){
            MGlobal::displayInfo("here");
            m_ocean->createH0();
            m_amp = amp;
            m_wdx = wdx;
            m_wdz = wdz;
            m_ws = ws;
        }

        dataHandle = _data.inputValue(m_choppiness, &status);
        CHECK_STATUS_AND_RETURN_MSTATUS_IF_FAIL(status, "Unable to get data handle for the choppiness plug");
        double choppiness = dataHandle.asDouble();

        dataHandle = _data.inputValue(m_time, &status);
        CHECK_STATUS_AND_RETURN_MSTATUS_IF_FAIL(status, "Unable to get data handle for time plug");
        MTime time = dataHandle.asTime();

        MDataHandle outputData = _data.outputValue(m_output, &status);
        CHECK_STATUS_AND_RETURN_MSTATUS_IF_FAIL( status , "Unable to get data handle for output plug" );

        MFnMeshData mesh;
        MObject outputObject = mesh.create(&status);
        CHECK_STATUS_AND_RETURN_MSTATUS_IF_FAIL(status, "Unable to create output mesh");

        // Find the current frame number we're on and create the grid based on this
        MAnimControl anim;
        anim.setMinTime(time);

        createGrid((int)pow(2.0, m_res+7), anim.currentTime().value()/24, choppiness, outputObject, status);

        CHECK_STATUS_AND_RETURN_MSTATUS_IF_FAIL(status, "Unable to to create grid");

//.........这里部分代码省略.........

MStatus NBuddyEMPSaverNode::compute( const MPlug& plug, MDataBlock& data )
{
    MStatus status;
    if (plug == _outTrigger)
    {
	MDataHandle outputPathHdl = data.inputValue( _empOutputPath, &status );
        NM_CheckMStatus( status, "Failed to get the output path handle");
	MString outputPath = outputPathHdl.asString();

       	// Get the input time
	MDataHandle timeHdl = data.inputValue( _time, &status );
	NM_CheckMStatus( status, "Failed to get time handle");
	MTime time = timeHdl.asTime();

        // Get the frame padding
        MDataHandle framePaddingHdl = data.inputValue( _framePadding, &status );
        NM_CheckMStatus( status, "Failed to get the framePadding handle");
        int numPad = framePaddingHdl.asInt();

      // Get the frame padding
        MDataHandle timeStepHdl = data.inputValue( _timeStep, &status );
        NM_CheckMStatus( status, "Failed to get the timeStep handle");
        int timeStep = timeStepHdl.asInt();
  
        // Get the time in frames
        int frameNr = (int)floor( time.as( time.uiUnit() ) );

        //Create the writer, givin it the time index in seconds
        Nb::EmpWriter* writer = 
            new Nb::EmpWriter( 
                "",
                outputPath.asChar(),       // absolute fullpath of emp
                frameNr,                   // frame
                timeStep,                  // timestep
                numPad,                    // zero-padding                
                time.as( MTime::kSeconds ) // emp timestamp
                );

        // Then get the inputBodies
        MArrayDataHandle inBodyArrayData = data.inputArrayValue( _inBodies, &status );
        NM_CheckMStatus( status, "Failed to create get inBodyArrayData handle");

        // Loop the input in the inBody multi plug
        unsigned int numBodies = inBodyArrayData.elementCount();
        if ( numBodies > 0 )
        {
            //Jump to the first element in the array
            inBodyArrayData.jumpToArrayElement(0);

            //Loop all the body inputs and add them to the empWriter
            for ( unsigned int i(0); i < numBodies; ++i)
            {
                MDataHandle bodyDataHnd = inBodyArrayData.inputValue( &status );
                MFnPluginData dataFn(bodyDataHnd.data());

                //Get naiad body from datatype
                naiadBodyData * bodyData = (naiadBodyData*)dataFn.data( &status );
                if ( bodyData && bodyData->nBody() )
                {
                    //Add body to writer
                    try{
                        Nb::String channels("*.*");
                        writer->write(bodyData->nBody(),channels);
                    }
                    catch(std::exception& e) {
                        std::cerr << "NBuddyEMPSaverNode::compute() " << e.what() << std::endl;
                    }
                }
                else
                    std::cerr << "NBuddyEMPSaverNode::compute() :: No body in input " << inBodyArrayData.elementIndex() << std::endl;

                //Next body in the input multi
                inBodyArrayData.next();
            }
        }

        try{
            writer->close();
            // Get rid of the writer object
            delete writer;
        }
        catch(std::exception& e) {
            std::cerr << "NBuddyEMPSaverNode::compute() " << e.what() << std::endl;
        }

        //Set the output to be clean indicating that we have saved out the file
        MDataHandle outTriggerHnd = data.outputValue( _outTrigger, &status );
        outTriggerHnd.set(true);
        data.setClean( plug );
    }

    return status;
}

MStatus LSystemNode::compute(const MPlug& plug, MDataBlock& data)

{
	MStatus returnStatus;

	if (plug == outputMesh) {
		/* Get time */
		MDataHandle timeData = data.inputValue( time, &returnStatus ); 
		McheckErr(returnStatus, "Error getting time data handle\n");
		MTime time = timeData.asTime();

		MDataHandle angleData = data.inputValue( angle, &returnStatus ); 
		McheckErr(returnStatus, "Error getting time data handle\n");
		double angle_value = angleData.asDouble();

		MDataHandle stepsData = data.inputValue( steps, &returnStatus ); 
		McheckErr(returnStatus, "Error getting time data handle\n");
		double steps_value = stepsData.asDouble();

		MDataHandle grammarData = data.inputValue( grammar, &returnStatus ); 
		McheckErr(returnStatus, "Error getting time data handle\n");
		MString grammar_value = grammarData.asString();

		/* Get output object */

		MDataHandle outputHandle = data.outputValue(outputMesh, &returnStatus);
		McheckErr(returnStatus, "ERROR getting polygon data handle\n");

		MFnMeshData dataCreator;
		MObject newOutputData = dataCreator.create(&returnStatus);
		McheckErr(returnStatus, "ERROR creating outputData");

		MFnMesh	myMesh;
		MPointArray points;
		MIntArray faceCounts;
		MIntArray faceConnects;

		//MString grammar = ("F\\nF->F[+F]F[-F]F");

		CylinderMesh *cm;


		LSystem system;
		system.loadProgramFromString(grammar_value.asChar());
		system.setDefaultAngle(angle_value);
		system.setDefaultStep(steps_value);



			std::vector<LSystem::Branch> branches;
			system.process(time.value(), branches);

			int k = branches.size();
			for(int j = 0; j < branches.size(); j++)
			{
				//1. find the position for start and end point of current branch
				//2. generate a cylinder
				MPoint start(branches[j].first[0],branches[j].first[1],branches[j].first[2]);
				MPoint end(branches[j].second[0],branches[j].second[1],branches[j].second[2]);
				cm = new CylinderMesh(start, end);
				cm->appendToMesh(points, faceCounts, faceConnects); 
			}

		MObject newMesh = myMesh.create(points.length(), faceCounts.length(),
			points, faceCounts, faceConnects,
			newOutputData, &returnStatus);

		McheckErr(returnStatus, "ERROR creating new mesh");

		outputHandle.set(newOutputData);
		data.setClean( plug );
	} else
		return MS::kUnknownParameter;

	return MS::kSuccess;
}

MStatus latticeNoiseNode::compute( const MPlug& plug, MDataBlock& data )
{ 
	MStatus returnStatus;

	float noiseAmplitude;
	float noiseFreq;
 
	if( plug == output )
	{
		// Get the lattice data from the input attribute.  First get the 
		// data object, and then use the lattice data function set to extract
		// the actual lattice.
		//

		// Get the data handle
		//
		MDataHandle inputData = data.inputValue( input, &returnStatus );
		McheckErr( returnStatus, "ERROR getting lattice data handle\n" ); 
		// Get the data object
		//
		MObject latticeData = inputData.data(); 
		MFnLatticeData dataFn( latticeData );
		// Get the actual geometry
		// 
		MObject lattice = dataFn.lattice();
		MFnLattice lattFn( lattice, &returnStatus );
		McheckErr( returnStatus, "ERROR getting lattice geometry\n" );  


		// Do the same for the output lattice
		//
		MDataHandle outputData = data.outputValue( output, &returnStatus ); 
		McheckErr( returnStatus, "ERROR getting lattice data handle\n" );
		// Get the data object
		//
		latticeData = outputData.data(); 
		if ( latticeData.isNull() ) { 
			// The data object for this attribute has not been created yet, so
			// we'll create it
			//
			latticeData = dataFn.create();
		} else {
			// Use the data object that is already there
			// 
			dataFn.setObject( latticeData );
		}
		// Get the actual geometry
		// 
		MObject outLattice = dataFn.lattice();
		MFnLattice outLattFn( outLattice, &returnStatus );
		McheckErr( returnStatus, "ERROR getting lattice geometry\n" );  

		// Get the amplitude and frequency
		//
		MDataHandle ampData = data.inputValue( amplitude, &returnStatus );
		McheckErr( returnStatus, "ERROR getting amplitude\n" );
		noiseAmplitude = ampData.asFloat(); 

		MDataHandle freqData = data.inputValue( frequency, &returnStatus );
		McheckErr( returnStatus, "ERROR getting frequency\n" );
		noiseFreq = freqData.asFloat(); 

		// Get the time.  
		//
		MDataHandle timeData = data.inputValue( time, &returnStatus ); 
		McheckErr( returnStatus, "ERROR getting time data handle\n" );
		MTime time = timeData.asTime();
		float seconds = (float)time.as( MTime::kSeconds );

		// Easiest way to modify frequency is by modifying the time
		//
		seconds = seconds * noiseFreq;

		// We have the information we need now.  We'll apply noise to the
		// points upon the lattice
		//
		unsigned s, t, u;
		lattFn.getDivisions( s, t, u );
		// match up the divisions in the lattices
		//
		outLattFn.setDivisions( s, t, u );   

		for ( unsigned i = 0; i < s; i++ ) {
			for ( unsigned j = 0; j < t; j++ ) {
				for ( unsigned k = 0; k < u; k++ ) {
					MPoint & point = lattFn.point( i, j, k );
					MPoint & outPoint = outLattFn.point( i, j, k );
					pnt noisePnt = noise::atPointAndTime( (float)point.x, (float)point.y, 
														  (float)point.z, seconds );
					// Make noise between -1 and 1 instead of 0 and 1
					//
					noisePnt.x =  ( noisePnt.x * 2.0F ) - 1.0F;
					noisePnt.y =  ( noisePnt.y * 2.0F ) - 1.0F;
					noisePnt.z =  ( noisePnt.z * 2.0F ) - 1.0F;

 					outPoint.x = point.x + ( noisePnt.x * noiseAmplitude );
 					outPoint.y = point.y + ( noisePnt.y * noiseAmplitude );
 					outPoint.z = point.z + ( noisePnt.z * noiseAmplitude );  
				}
			}
//.........这里部分代码省略.........

MStatus NuiMayaDeviceGrabber::compute( const MPlug& plug, MDataBlock& datablock )
//
//	Description:
//		This method computes the value of the given output plug based
//		on the values of the input attributes.
//
//	Arguments:
//		plug - the plug to compute
//		data - object that provides access to the attributes for this node
//
{
	assert(m_pCache);
	if(!m_pCache)
		return MS::kFailure;

	MStatus returnStatus;
	/* Get time */
	MDataHandle timeData = datablock.inputValue( aTime, &returnStatus ); 
	MCHECKERROR(returnStatus, "Error getting time data handle\n")
	MTime time = timeData.asTime();
	//!< 30 frames per second
	int	  frame = (int)time.as( MTime::kNTSCFrame ) - 1;//Noted: The first frame in MAYA is 1;

	if(m_pDevice)
	{
		std::shared_ptr<NuiCompositeFrame> pFrame = m_pDevice->popFrame();
		if(pFrame)
		{
			pFrame->m_depthFrame.SetMinDepth(getShortValue(aMinDepth));
			pFrame->m_depthFrame.SetMaxDepth(getShortValue(aMaxDepth));

			if(m_pSLAM /*&& m_pSLAM->m_tracker.isThreadOn()*/)
			{
				std::shared_ptr<NuiVisualFrame> pVisualFrame = std::make_shared<NuiVisualFrame>();
				pVisualFrame->acquireFromCompositeFrame(pFrame.get());
				m_pSLAM->m_tracker.pushbackFrame(pVisualFrame);
				pVisualFrame.reset();
			}
			m_pCache->pushbackFrame(pFrame);
			pFrame.reset();
		}
	}

	std::shared_ptr<NuiCompositeFrame> pCurrentFrame = m_pCache->getLatestFrame();
		
	if ( plug == aOutputMappable )
	{
		std::shared_ptr<NuiCLMappableData> clData(nullptr);
		MDataHandle outHandle = datablock.outputValue( aOutputMappable );
		NuiMayaMappableData* clmData = static_cast<NuiMayaMappableData*>(outHandle.asPluginData());
		if(!clmData)
		{
			// Create some user defined geometry data and access the
			// geometry so we can set it
			//
			MFnPluginData fnDataCreator;
			MTypeId tmpid( NuiMayaMappableData::id );

			fnDataCreator.create( tmpid, &returnStatus );
			MCHECKERROR( returnStatus, "compute : error creating mappableData")

			clmData = (NuiMayaMappableData*)fnDataCreator.data( &returnStatus );
			MCHECKERROR( returnStatus, "compute : error gettin at proxy mappableData object")

			clData = std::shared_ptr<NuiCLMappableData>(new NuiCLMappableData());
			clmData->setData(clData);

			returnStatus = outHandle.set( clmData );
			MCHECKERROR( returnStatus, "compute : error gettin at proxy mappableData object")
		}