void orderFrames( eq::Frames& frames, const eq::Matrix4d& modelviewM,
                  const eq::Matrix3d& modelviewITM,
                  const eq::Matrix4f& rotation, const bool orthographic )
{
    if( orthographic )
    {
        const bool orientation = rotation.array[10] < 0;
        sort( frames.begin(), frames.end(),
              orientation ? cmpRangesInc : cmpRangesDec );
        return;
    }
    // else perspective projection

    eq::Vector3d norm = modelviewITM * eq::Vector3d( 0.0, 0.0, 1.0 );
    norm.normalize();

    sort( frames.begin(), frames.end(), cmpRangesInc );

    // cos of angle between normal and vectors from center
    std::vector<double> dotVals;

    // of projection to the middle of slices' boundaries
    for( eq::Frames::const_iterator i = frames.begin();
         i != frames.end(); ++i )
    {
        const eq::Frame* frame = *i;
        const double     px    = -1.0 + frame->getRange().end*2.0;

        const eq::Vector4d pS = modelviewM * eq::Vector4d( 0.0, 0.0, px , 1.0 );
        eq::Vector3d pSsub( pS[ 0 ], pS[ 1 ], pS[ 2 ] );
        pSsub.normalize();
        dotVals.push_back( norm.dot( pSsub ));
    }

    const eq::Vector4d pS = modelviewM * eq::Vector4d( 0.0, 0.0,-1.0, 1.0 );
    eq::Vector3d pSsub( pS[ 0 ], pS[ 1 ], pS[ 2 ] );
    pSsub.normalize();
    dotVals.push_back( norm.dot( pSsub ));
    //check if any slices need to be rendered in reverse order
    size_t minPos = std::numeric_limits< size_t >::max();
    for( size_t i=0; i<dotVals.size()-1; i++ )
        if( dotVals[i] > 0 && dotVals[i+1] > 0 )
            minPos = static_cast< int >( i );

    const size_t nFrames = frames.size();
    minPos++;
    if( minPos < frames.size()-1 )
    {
        eq::Frames framesTmp = frames;

        // copy slices that should be rendered first
        memcpy( &frames[ nFrames-minPos-1 ], &framesTmp[0],
                (minPos+1)*sizeof( eq::Frame* ) );
 
         // copy slices that should be rendered last, in reverse order
        for( size_t i=0; i<nFrames-minPos-1; i++ )
            frames[ i ] = framesTmp[ nFrames-i-1 ];
    }
}
Exemple #2
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void Channel::frameReadback( const eq::uint128_t& frameID,
                             const eq::Frames& frames )
{
    if( stopRendering() || _isDone( ))
        return;

    const FrameData& frameData = _getFrameData();
    for( eq::FramesCIter i = frames.begin(); i != frames.end(); ++i )
    {
        eq::Frame* frame = *i;
        // OPT: Drop alpha channel from all frames during network transport
        frame->setAlphaUsage( false );

        if( frameData.isIdle( ))
            frame->setQuality( eq::Frame::BUFFER_COLOR, 1.f );
        else
            frame->setQuality( eq::Frame::BUFFER_COLOR, frameData.getQuality());

        if( frameData.useCompression( ))
            frame->useCompressor( eq::Frame::BUFFER_COLOR, EQ_COMPRESSOR_AUTO );
        else
            frame->useCompressor( eq::Frame::BUFFER_COLOR, EQ_COMPRESSOR_NONE );
    }

    eq::Channel::frameReadback( frameID, frames );
}
Exemple #3
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void Channel::frameAssemble( const eq::uint128_t& frameID,
                             const eq::Frames& frames  )
{
    if( stopRendering( ))
        return;

    if( _isDone( ))
        return;

    Accum& accum = _accum[ lunchbox::getIndexOfLastBit( getEye()) ];

    if( getPixelViewport() != _currentPVP )
    {
        accum.transfer = true;

        if( accum.buffer && !accum.buffer->usesFBO( ))
        {
            LBWARN << "Current viewport different from view viewport, "
                   << "idle anti-aliasing not implemented." << std::endl;
            accum.step = 0;
        }

        eq::Channel::frameAssemble( frameID, frames );
        return;
    }
    // else

    accum.transfer = true;
    for( eq::Frames::const_iterator i = frames.begin(); i != frames.end(); ++i )
    {
        eq::Frame* frame = *i;
        const eq::SubPixel& curSubPixel = frame->getSubPixel();

        if( curSubPixel != eq::SubPixel::ALL )
            accum.transfer = false;

        accum.stepsDone = LB_MAX( accum.stepsDone, frame->getSubPixel().size *
                                                   frame->getPeriod( ));
    }

    applyBuffer();
    applyViewport();
    setupAssemblyState();

    try
    {
        eq::Compositor::assembleFrames( frames, this, accum.buffer );
    }
    catch( const co::Exception& e )
    {
        LBWARN << e.what() << std::endl;
    }

    resetAssemblyState();
}
Exemple #4
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    void orderFrames( eq::Frames& frames, const Matrix4f& modelView )
    {
        LBASSERT( !_channel->useOrtho( ));

        // calculate modelview inversed+transposed matrix
        Matrix3f modelviewITM;
        Matrix4f modelviewIM;
        modelView.inverse( modelviewIM );
        Matrix3f( modelviewIM ).transpose_to( modelviewITM );

        Vector3f norm = modelviewITM * Vector3f( 0.0f, 0.0f, 1.0f );
        norm.normalize();
        std::sort( frames.begin(), frames.end(), cmpRangesInc );

        // cos of angle between normal and vectors from center
        std::vector<double> dotVals;

        // of projection to the middle of slices' boundaries
        for( const eq::Frame* frame : frames )
        {
            const double px = -1.0 + frame->getRange().end*2.0;
            const Vector4f pS = modelView * Vector4f( 0.0f, 0.0f, px, 1.0f );
            Vector3f pSsub( pS[ 0 ], pS[ 1 ], pS[ 2 ] );
            pSsub.normalize();
            dotVals.push_back( norm.dot( pSsub ));
        }

        const Vector4f pS = modelView * Vector4f( 0.0f, 0.0f, -1.0f, 1.0f );
        eq::Vector3f pSsub( pS[ 0 ], pS[ 1 ], pS[ 2 ] );
        pSsub.normalize();
        dotVals.push_back( norm.dot( pSsub ));

        // check if any slices need to be rendered in reverse order
        size_t minPos = std::numeric_limits< size_t >::max();
        for( size_t i=0; i<dotVals.size()-1; i++ )
            if( dotVals[i] > 0 && dotVals[i+1] > 0 )
                minPos = static_cast< int >( i );

        const size_t nFrames = frames.size();
        minPos++;
        if( minPos < frames.size()-1 )
        {
            eq::Frames framesTmp = frames;

            // copy slices that should be rendered first
            memcpy( &frames[ nFrames-minPos-1 ], &framesTmp[0],
                    (minPos+1)*sizeof( eq::Frame* ) );

            // copy slices that should be rendered last, in reverse order
            for( size_t i=0; i<nFrames-minPos-1; i++ )
                frames[ i ] = framesTmp[ nFrames-i-1 ];
        }
    }
Exemple #5
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void Channel::frameReadback( const eq::uint128_t& frameID,
                             const eq::Frames& frames )
{
    // Drop depth buffer flag from all output frames
    const FrameData& frameData = _getFrameData();
    for( eq::FramesCIter i = frames.begin(); i != frames.end(); ++i )
    {
        eq::Frame* frame = *i;
        frame->setQuality( eq::Frame::BUFFER_COLOR, frameData.getQuality());
        frame->disableBuffer( eq::Frame::BUFFER_DEPTH );
    }

    eq::Channel::frameReadback( frameID, frames );
}