simpleraycaster.cpp 3.28 KB
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// ================================================================================================
// 
// This file is part of the TUMVis Visualization Framework.
// 
// If not explicitly stated otherwise: Copyright (C) 2012, all rights reserved,
//      Christian Schulte zu Berge (christian.szb@in.tum.de)
//      Chair for Computer Aided Medical Procedures
//      Technische Universitt Mnchen
//      Boltzmannstr. 3, 85748 Garching b. Mnchen, Germany
// 
// The licensing of this softare is not yet resolved. Until then, redistribution in source or
// binary forms outside the CAMP chair is not permitted, unless explicitly stated in legal form.
// However, the names of the original authors and the above copyright notice must retain in its
// original state in any case.
// 
// Legal disclaimer provided by the BSD license:
// 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 HOLDER 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.
// 
// ================================================================================================

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#include "simpleraycaster.h"

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#include "core/tools/quadrenderer.h"
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#include "core/datastructures/imagedatarendertarget.h"
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#include "core/pipeline/processordecoratorshading.h"
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namespace TUMVis {
    const std::string SimpleRaycaster::loggerCat_ = "TUMVis.modules.vis.SimpleRaycaster";

    SimpleRaycaster::SimpleRaycaster(GenericProperty<tgt::ivec2>& canvasSize)
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        : RaycastingProcessor(canvasSize, "modules/vis/simpleraycaster.frag", true)
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        , _targetImageID("targetImageID", "Output Image", "", DataNameProperty::WRITE)
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    {
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        addDecorator(new ProcessorDecoratorShading());

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        addProperty(&_targetImageID);
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        decoratePropertyCollection(this);
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        // TODO: remove hack
        _transferFunction.getTF()->setIntensityDomain(tgt::vec2(0.01f, 0.05f));
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    }

    SimpleRaycaster::~SimpleRaycaster() {

    }

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    void SimpleRaycaster::processImpl(DataContainer& data) {
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        ImageDataRenderTarget* output = new ImageDataRenderTarget(tgt::svec3(_renderTargetSize.getValue(), 1));
        output->createAndAttachTexture(GL_RGBA32F);
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        output->createAndAttachTexture(GL_RGBA32F);
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        output->activate();

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        GLenum buffers[] = { GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1 , GL_COLOR_ATTACHMENT2 };
        glDrawBuffers(3, buffers);
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        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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        glDepthFunc(GL_ALWAYS);
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        QuadRdr.renderQuad();
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        LGL_ERROR;
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        output->deactivate();
        data.addData(_targetImageID.getValue(), output);
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        _targetImageID.issueWrite();
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    }
}