* introducing DataNameProperty

 * introducing geometryrenderer.cpp
 * updated DVRVis pipeline and various processors

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@283 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

src/tumvis/core/pipeline/raycastingprocessor.cpp

@@ -44,9 +44,9 @@ namespace TUMVis {
 
     RaycastingProcessor::RaycastingProcessor(GenericProperty<tgt::ivec2>& renderTargetSize, const std::string& fragmentShaderFileName, bool bindEntryExitDepthTextures)
         : VisualizationProcessor(renderTargetSize)
-        , _sourceImageID("sourceImageID", "Input Image", "")
-        , _entryImageID("entryImageID", "Input Entry Points Image", "")
-        , _exitImageID("exitImageID", "Input Exit Points Image", "")
+        , _sourceImageID("sourceImageID", "Input Image", "", DataNameProperty::READ)
+        , _entryImageID("entryImageID", "Input Entry Points Image", "", DataNameProperty::READ)
+        , _exitImageID("exitImageID", "Input Exit Points Image", "", DataNameProperty::READ)
         , _camera("camera", "Camera")
         , _transferFunction("transferFunction", "Transfer Function", new SimpleTransferFunction(256))
         , _samplingStepSize("samplingStepSize", "Sampling Step Size", .1f, 0.001f, 1.f)

src/tumvis/core/pipeline/raycastingprocessor.h

@@ -33,6 +33,7 @@
 
 #include "core/pipeline/visualizationprocessor.h"
 #include "core/properties/cameraproperty.h"
+#include "core/properties/datanameproperty.h"
 #include "core/properties/genericproperty.h"
 #include "core/properties/numericproperty.h"
 #include "core/properties/transferfunctionproperty.h"
@@ -95,9 +96,9 @@ namespace TUMVis {
          */
         virtual void process(DataContainer& data);
 
-        GenericProperty<std::string> _sourceImageID;    ///< image ID for input image
-        GenericProperty<std::string> _entryImageID;     ///< image ID for output entry points image
-        GenericProperty<std::string> _exitImageID;      ///< image ID for output exit points image
+        DataNameProperty _sourceImageID;                ///< image ID for input image
+        DataNameProperty _entryImageID;                 ///< image ID for output entry points image
+        DataNameProperty _exitImageID;                  ///< image ID for output exit points image
 
         CameraProperty _camera;                         ///< Camera used for ray casting
         TransferFunctionProperty _transferFunction;     ///< Transfer function

src/tumvis/core/properties/datanameproperty.cpp

+// ================================================================================================
+// 
+// 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.
+// 
+// ================================================================================================
+
+#include "datanameproperty.h"
+
+namespace TUMVis {
+
+    const std::string DataNameProperty::loggerCat_ = "TUMVis.core.datastructures.DataNameProperty";
+
+    DataNameProperty::DataNameProperty(const std::string& name, const std::string& title, const std::string& value, DataAccessInfo access, InvalidationLevel il /*= InvalidationLevel::INVALID_RESULT*/)
+        : GenericProperty<std::string>(name, title, value, il)
+        , _accessInfo(access)
+    {
+
+    }
+
+    DataNameProperty::~DataNameProperty() {
+    }
+
+    void DataNameProperty::connect(DataNameProperty* reader) {
+        tgtAssert(reader != 0, "Reader must not be 0");
+        tgtAssert(_accessInfo == WRITE, "Can only connect writing properties to reading properties.");
+        tgtAssert(reader->_accessInfo == READ, "Can only connect writing properties to reading properties.");
+
+        if (_connectedReaders.insert(reader).second)
+            addSharedProperty(reader);
+    }
+
+    void DataNameProperty::disconnect(DataNameProperty* reader) {
+        tgtAssert(reader != 0, "Reader must not be 0");
+
+        if (_connectedReaders.erase(reader) > 0)
+            removeSharedProperty(reader);
+    }
+
+    void DataNameProperty::issueWrite() {
+        tgtAssert(_accessInfo == WRITE, "Write access not specified.");
+
+        for (std::set<DataNameProperty*>::iterator it = _connectedReaders.begin(); it != _connectedReaders.end(); ++it) {
+            (*it)->notifyReaders();
+        }
+    }
+
+    void DataNameProperty::notifyReaders() {
+        s_changed(this);
+    }
+
+}

src/tumvis/core/properties/datanameproperty.h

+// ================================================================================================
+// 
+// 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 Universität München
+//      Boltzmannstr. 3, 85748 Garching b. München, 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.
+// 
+// ================================================================================================
+
+#ifndef DATANAMEPROPERTY_H__
+#define DATANAMEPROPERTY_H__
+
+#include "core/properties/genericproperty.h"
+
+#include <ctime>
+#include <set>
+#include <string>
+
+namespace TUMVis {
+
+    class DataNameProperty : public GenericProperty<std::string> {
+    public:
+        /**
+         * DataAccessInfo flag defining whether processor will read or write from/to the corresponding DataHandle.
+         */
+        enum DataAccessInfo {
+            READ,
+            WRITE
+        };
+
+        /**
+         * Creates a new DataNameProperty
+         * \param name      Property name (unchangable!)
+         * \param title     Property title (e.g. used for GUI)
+         * \param value     Initial value
+         * \param access    DataAccessInfo flag defining whether processor will read or write from/to the DataHandle with the given ID.
+         * \param il        Invalidation level that this property triggers
+         */
+        DataNameProperty(const std::string& name, const std::string& title, const std::string& value, DataAccessInfo access, InvalidationLevel il = InvalidationLevel::INVALID_RESULT);
+
+        /**
+         * Virtual Destructor
+         **/
+        virtual ~DataNameProperty();
+
+
+        /**
+         * Connects this property with the given DataNameProperty \a reader.
+         * \param   reader  DataNameProperty to connect to, must be have read access.
+         */
+        void connect(DataNameProperty* reader);
+
+        /**
+         * Disconnects this property from the given DataNameProperty \a reader.
+         * \param   reader  DataNameProperty to disconnect from, must be have read access.
+         */
+        void disconnect(DataNameProperty* reader);
+
+        void issueWrite();
+
+    protected:
+
+        void notifyReaders();
+
+        DataAccessInfo _accessInfo;
+        std::set<DataNameProperty*> _connectedReaders;
+
+        static const std::string loggerCat_;
+    };
+
+}
+
+#endif // DATANAMEPROPERTY_H__

src/tumvis/ext/tgt/manager.h

@@ -218,8 +218,10 @@ std::string ResourceManager<T>::completePath(std::string filename) {
 
     if (foundFile)
         return cplFileName;
-    else
+    else {
+        LERROR("Could not complete path for file " << filename);
         return "";
+    }
 }
 
 template <class T>

src/tumvis/modules/pipelines/dvrvis.cpp

@@ -40,6 +40,8 @@ namespace TUMVis {
         , _camera("camera", "Camera")
         , _imageReader()
         , _pgGenerator()
+        , _vmgGenerator()
+        , _vmRenderer(_renderTargetSize)
         , _eepGenerator(_renderTargetSize)
         , _drrraycater(_renderTargetSize)
         , _simpleRaycaster(_renderTargetSize)
@@ -58,6 +60,8 @@ namespace TUMVis {
 
         _processors.push_back(&_imageReader);
         _processors.push_back(&_pgGenerator);
+        _processors.push_back(&_vmgGenerator);
+        _processors.push_back(&_vmRenderer);
         _processors.push_back(&_eepGenerator);
         _processors.push_back(&_drrraycater);
         _processors.push_back(&_simpleRaycaster);
@@ -71,6 +75,8 @@ namespace TUMVis {
     void DVRVis::init() {
         VisualizationPipeline::init();
 
+        _camera.addSharedProperty(&_vmgGenerator._camera);
+        _camera.addSharedProperty(&_vmRenderer._camera);
         _camera.addSharedProperty(&_eepGenerator._camera);
         _camera.addSharedProperty(&_drrraycater._camera);
         _camera.addSharedProperty(&_simpleRaycaster._camera);
@@ -79,14 +85,6 @@ namespace TUMVis {
         _imageReader._url.setValue("D:\\Medical Data\\smallHeart.mhd");
         _imageReader._targetImageID.setValue("reader.output");
 
-        _eepGenerator._entryImageID.addSharedProperty(&_drrraycater._entryImageID);
-        _eepGenerator._entryImageID.addSharedProperty(&_simpleRaycaster._entryImageID);
-        _eepGenerator._entryImageID.addSharedProperty(&_clRaycaster._entryImageID);
-
-        _eepGenerator._exitImageID.addSharedProperty(&_drrraycater._exitImageID);
-        _eepGenerator._exitImageID.addSharedProperty(&_simpleRaycaster._exitImageID);
-        _eepGenerator._exitImageID.addSharedProperty(&_clRaycaster._exitImageID);
-
         _drrraycater._targetImageID.setValue("drr.output");
         _drrraycater._sourceImageID.setValue("eep.input");
 
@@ -97,14 +95,25 @@ namespace TUMVis {
         _clRaycaster._sourceImageID.setValue("clr.input");
 
         _eepGenerator._sourceImageID.setValue("eep.input");
-        _eepGenerator._entryImageID.setValue("eep.entry");
-        _eepGenerator._exitImageID.setValue("eep.exit");
-
         _pgGenerator._sourceImageID.setValue("eep.input");
 
         _renderTargetID.setValue("eep.entry");
 
+        _pgGenerator._geometryID.connect(&_eepGenerator._geometryID);
+        _vmgGenerator._mirrorID.connect(&_eepGenerator._mirrorID);
+        _vmgGenerator._mirrorID.connect(&_vmRenderer._geometryID);
+
+        _eepGenerator._entryImageID.connect(&_drrraycater._entryImageID);
+        _eepGenerator._entryImageID.connect(&_simpleRaycaster._entryImageID);
+        _eepGenerator._entryImageID.connect(&_clRaycaster._entryImageID);
+
+        _eepGenerator._exitImageID.connect(&_drrraycater._exitImageID);
+        _eepGenerator._exitImageID.connect(&_simpleRaycaster._exitImageID);
+        _eepGenerator._exitImageID.connect(&_clRaycaster._exitImageID);
+
         _imageReader.s_invalidated.connect<DVRVis>(this, &DVRVis::onProcessorInvalidated);
+        _vmgGenerator.s_invalidated.connect<DVRVis>(this, &DVRVis::onProcessorInvalidated);
+        _vmRenderer.s_invalidated.connect<DVRVis>(this, &DVRVis::onProcessorInvalidated);
         _pgGenerator.s_invalidated.connect<DVRVis>(this, &DVRVis::onProcessorInvalidated);
         _eepGenerator.s_invalidated.connect<DVRVis>(this, &DVRVis::onProcessorInvalidated);
         _drrraycater.s_invalidated.connect<DVRVis>(this, &DVRVis::onProcessorInvalidated);
@@ -147,6 +156,12 @@ namespace TUMVis {
         if (! _pgGenerator.getInvalidationLevel().isValid()) {
             executeProcessor(&_pgGenerator);
         }
+        if (! _vmgGenerator.getInvalidationLevel().isValid()) {
+            executeProcessor(&_vmgGenerator);
+        }
+        if (! _vmRenderer.getInvalidationLevel().isValid()) {
+            lockGLContextAndExecuteProcessor(&_vmRenderer);
+        }
         if (! _eepGenerator.getInvalidationLevel().isValid()) {
             lockGLContextAndExecuteProcessor(&_eepGenerator);
         }

src/tumvis/modules/pipelines/dvrvis.h

@@ -34,7 +34,9 @@
 #include "core/pipeline/visualizationpipeline.h"
 #include "core/properties/cameraproperty.h"
 #include "modules/io/mhdimagereader.h"
+#include "modules/vis/virtualmirrorgeometrygenerator.h"
 #include "modules/vis/proxygeometrygenerator.h"
+#include "modules/vis/geometryrenderer.h"
 #include "modules/vis/eepgenerator.h"
 #include "modules/vis/drrraycaster.h"
 #include "modules/vis/simpleraycaster.h"
@@ -70,6 +72,8 @@ namespace TUMVis {
         CameraProperty _camera;
         MhdImageReader _imageReader;
         ProxyGeometryGenerator _pgGenerator;
+        VirtualMirrorGeometryGenerator _vmgGenerator;
+        GeometryRenderer _vmRenderer;
         EEPGenerator _eepGenerator;
         DRRRaycaster _drrraycater;
         SimpleRaycaster _simpleRaycaster;

src/tumvis/modules/vis/clraycaster.cpp

@@ -51,10 +51,10 @@ namespace TUMVis {
 
     CLRaycaster::CLRaycaster(GenericProperty<tgt::ivec2>& renderTargetSize)
         : VisualizationProcessor(renderTargetSize)
-        , _sourceImageID("sourceImageID", "Input Image", "")
-        , _entryImageID("entryImageID", "Output Entry Points Image", "")
-        , _exitImageID("exitImageID", "Output Exit Points Image", "")
-        , _targetImageID("targetImageID", "Target image ID", "")
+        , _sourceImageID("sourceImageID", "Input Image", "", DataNameProperty::READ)
+        , _entryImageID("entryImageID", "Output Entry Points Image", "", DataNameProperty::READ)
+        , _exitImageID("exitImageID", "Output Exit Points Image", "", DataNameProperty::READ)
+        , _targetImageID("targetImageID", "Target image ID", "", DataNameProperty::WRITE)
         , _camera("camera", "Camera")
         , _transferFunction("transferFunction", "Transfer Function", new SimpleTransferFunction(256))
         , _samplingStepSize("samplingStepSize", "Sampling Step Size", .1f, 0.001f, 1.f)

src/tumvis/modules/vis/clraycaster.h

@@ -33,6 +33,7 @@
 
 #include "core/pipeline/visualizationprocessor.h"
 #include "core/properties/cameraproperty.h"
+#include "core/properties/datanameproperty.h"
 #include "core/properties/genericproperty.h"
 #include "core/properties/numericproperty.h"
 #include "core/properties/transferfunctionproperty.h"
@@ -98,10 +99,10 @@ namespace TUMVis {
          */
         virtual void process(DataContainer& data);
 
-        GenericProperty<std::string> _sourceImageID;    ///< image ID for input image
-        GenericProperty<std::string> _entryImageID;     ///< image ID for output entry points image
-        GenericProperty<std::string> _exitImageID;      ///< image ID for output exit points image
-        GenericProperty<std::string> _targetImageID;    ///< image ID for output image
+        DataNameProperty _sourceImageID;                ///< image ID for input image
+        DataNameProperty _entryImageID;                 ///< image ID for output entry points image
+        DataNameProperty _exitImageID;                  ///< image ID for output exit points image
+        DataNameProperty _targetImageID;                ///< image ID for output image
 
         CameraProperty _camera;                         ///< Camera used for ray casting
         TransferFunctionProperty _transferFunction;     ///< Transfer function

src/tumvis/modules/vis/eepgenerator.cpp

@@ -42,25 +42,22 @@ namespace TUMVis {
 
     EEPGenerator::EEPGenerator(GenericProperty<tgt::ivec2>& canvasSize)
         : VisualizationProcessor(canvasSize)
-        , _sourceImageID("sourceImageID", "Input Image", "")
-        , _geometryID("geometryID", "Input Geometry ID", "proxygeometry")
-        , _mirrorID("mirrorID", "Input Mirror ID", "mirror")
-        , _entryImageID("entryImageID", "Output Entry Points Image", "")
-        , _exitImageID("exitImageID", "Output Exit Points Image", "")
+        , _sourceImageID("sourceImageID", "Input Image", "", DataNameProperty::READ)
+        , _geometryID("geometryID", "Input Geometry ID", "proxygeometry", DataNameProperty::READ)
+        , _mirrorID("mirrorID", "Input Mirror ID", "mirror", DataNameProperty::READ)
+        , _entryImageID("entryImageID", "Output Entry Points Image", "eep.entry", DataNameProperty::WRITE)
+        , _exitImageID("exitImageID", "Output Exit Points Image", "eep.exit", DataNameProperty::WRITE)
         , _camera("camera", "Camera")
         , _enableMirror("enableMirror", "Enable Virtual Mirror Feature", false)
-        , _mirrorPoint("mirrorPoint", "Point on Mirror Plane", 0.f, -1000.f, 1000.f)
-        , _mirrorNormal("mirrorNormal", "Normal of Mirror Plane", tgt::vec3(1.f), tgt::vec3(-1.f), tgt::vec3(1.f))
         , _shader(0)
     {
         addProperty(&_sourceImageID);
+        addProperty(&_geometryID);
         addProperty(&_mirrorID);
         addProperty(&_entryImageID);
         addProperty(&_exitImageID);
         addProperty(&_camera);
         addProperty(&_enableMirror);
-        addProperty(&_mirrorPoint);
-        addProperty(&_mirrorNormal);
     }
 
     EEPGenerator::~EEPGenerator() {
@@ -100,29 +97,31 @@ namespace TUMVis {
                 glPushAttrib(GL_ALL_ATTRIB_BITS);
 
                 _shader->activate();
-                _shader->setUniform("_projectionMatrix", _camera.getValue().getProjectionMatrix());
 
+                tgt::mat4 mirrorMatrix = tgt::mat4::identity;
                 if (_enableMirror.getValue()) {
-                    // TODO: make use of mirror geometry
-                    tgt::vec3 n = tgt::normalize(_mirrorNormal.getValue());
-                    tgt::vec3 p = n * _mirrorPoint.getValue();
-                    float k = tgt::dot(p, n);
-
-                    // mirror matrix sponsored by:
-                    // Jiang 
-                    tgt::mat4 mirrorMatrix = tgt::mat4(
-                        1 - 2*n.x*n.x, -2*n.y*n.x   , -2*n.z*n.x   , 0, 
-                        -2*n.x*n.y   , 1 - 2*n.y*n.y, -2*n.z*n.y   , 0, 
-                        -2*n.x*n.z   , -2*n.y*n.z   , 1 - 2*n.z*n.z, 0, 
-                        2*n.x*k      , 2*n.y*k      , 2*n.z*k      , 1);
-
-                    // TODO: double check, whether matrix transpose is necessary
-                    _shader->setUniform("_modelMatrix", mirrorMatrix);
-                }
-                else {
-                    _shader->setUniform("_modelMatrix", tgt::mat4::identity);
+                    DataContainer::ScopedTypedData<FaceGeometry> mirrorGeometry(data, _mirrorID.getValue());
+                    if (mirrorGeometry && mirrorGeometry->size() > 0) {
+                        const tgt::vec3& p = mirrorGeometry->getVertices()[0];
+                        tgt::vec3 n = tgt::normalize(tgt::cross(mirrorGeometry->getVertices()[1] - mirrorGeometry->getVertices()[0], mirrorGeometry->getVertices()[2] - mirrorGeometry->getVertices()[0]));
+                        float k = tgt::dot(p, n);
+
+                        // mirror matrix sponsored by:
+                        // Jiang 
+                        mirrorMatrix = tgt::mat4(
+                            1 - 2*n.x*n.x, -2*n.y*n.x   , -2*n.z*n.x   , 0, 
+                            -2*n.x*n.y   , 1 - 2*n.y*n.y, -2*n.z*n.y   , 0, 
+                            -2*n.x*n.z   , -2*n.y*n.z   , 1 - 2*n.z*n.z, 0, 
+                            2*n.x*k      , 2*n.y*k      , 2*n.z*k      , 1);
+
+                        // TODO: double check, whether matrix transpose is necessary
+                    }
+                    else {
+                        LERROR("No suitable virtual mirror geometry found.");
+                    }
                 }
-
+                
+                _shader->setUniform("_modelMatrix", mirrorMatrix);
                 _shader->setUniform("_projectionMatrix", _camera.getValue().getProjectionMatrix());
                 _shader->setUniform("_viewMatrix", _camera.getValue().getViewMatrix());
                 glEnable(GL_CULL_FACE);

src/tumvis/modules/vis/eepgenerator.h

@@ -34,6 +34,7 @@
 #include "core/classification/abstracttransferfunction.h"
 #include "core/pipeline/visualizationprocessor.h"
 #include "core/properties/cameraproperty.h"
+#include "core/properties/datanameproperty.h"
 #include "core/properties/genericproperty.h"
 #include "core/properties/numericproperty.h"
 #include "core/properties/transferfunctionproperty.h"
@@ -71,17 +72,15 @@ namespace TUMVis {
 
         virtual void process(DataContainer& data);
 
-        StringProperty _sourceImageID;    ///< image ID for input image
-        StringProperty _geometryID;       ///< ID for input geometry
-        StringProperty _mirrorID;           ///< ID for input mirror geometry
-        StringProperty _entryImageID;     ///< image ID for output entry points image
-        StringProperty _exitImageID;      ///< image ID for output exit points image
+        DataNameProperty _sourceImageID;    ///< image ID for input image
+        DataNameProperty _geometryID;       ///< ID for input geometry
+        DataNameProperty _mirrorID;           ///< ID for input mirror geometry
+        DataNameProperty _entryImageID;     ///< image ID for output entry points image
+        DataNameProperty _exitImageID;      ///< image ID for output exit points image
 
         CameraProperty _camera;
 
         BoolProperty _enableMirror;         ///< Enable Virtual Mirror Feature
-        FloatProperty _mirrorPoint;         ///< Point on mirror plane
-        Vec3Property _mirrorNormal;         ///< Normal of mirror plane
 
     protected:
 

src/tumvis/modules/vis/geometryrenderer.cpp

+// ================================================================================================
+// 
+// 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.
+// 
+// ================================================================================================
+
+#include "geometryrenderer.h"
+
+#include "tgt/glmath.h"
+#include "tgt/logmanager.h"
+#include "tgt/shadermanager.h"
+#include "tgt/textureunit.h"
+
+#include "core/datastructures/imagedatagl.h"
+#include "core/datastructures/imagedatarendertarget.h"
+#include "core/datastructures/meshgeometry.h"
+
+namespace TUMVis {
+    const std::string GeometryRenderer::loggerCat_ = "TUMVis.modules.vis.GeometryRenderer";
+
+    GeometryRenderer::GeometryRenderer(GenericProperty<tgt::ivec2>& canvasSize)
+        : VisualizationProcessor(canvasSize)
+        , _geometryID("geometryID", "Input Geometry ID", "gr.input", DataNameProperty::READ)
+        , _renderTargetID("_renderTargetID", "Output Image", "gr.output", DataNameProperty::WRITE)
+        , _camera("camera", "Camera")
+        , _shader(0)
+    {
+        addProperty(&_geometryID);
+        addProperty(&_renderTargetID);
+        addProperty(&_camera);
+    }
+
+    GeometryRenderer::~GeometryRenderer() {
+
+    }
+
+    void GeometryRenderer::init() {
+        VisualizationProcessor::init();
+        _shader = ShdrMgr.loadSeparate("core/glsl/passthrough.vert", "modules/vis/geometryrenderer.frag", "", false);
+        if (_shader != 0) {
+            _shader->setAttributeLocation(0, "in_Position");
+        }
+    }
+
+    void GeometryRenderer::deinit() {
+        ShdrMgr.dispose(_shader);
+        _shader = 0;
+        VisualizationProcessor::deinit();
+    }
+
+    void GeometryRenderer::process(DataContainer& data) {
+        DataContainer::ScopedTypedData<GeometryData> proxyGeometry(data, _geometryID.getValue());
+
+        if (proxyGeometry != 0 && _shader != 0) {
+            // set modelview and projection matrices
+            glPushAttrib(GL_ALL_ATTRIB_BITS);
+
+            _shader->activate();
+            _shader->setUniform("_projectionMatrix", _camera.getValue().getProjectionMatrix());
+            _shader->setUniform("_viewMatrix", _camera.getValue().getViewMatrix());
+            _shader->setUniform("_color", tgt::vec4(1.f));
+
+            // create entry points texture
+            ImageDataRenderTarget* rt = new ImageDataRenderTarget(tgt::svec3(_renderTargetSize.getValue(), 1), GL_RGBA16);
+            rt->activate();
+
+            glDepthFunc(GL_LESS);
+            glClearDepth(1.0f);
+            glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+            proxyGeometry->render();
+
+            rt->deactivate();
+            _shader->deactivate();
+            glPopAttrib();
+            LGL_ERROR;
+
+            data.addData(_renderTargetID.getValue(), rt);
+            _renderTargetID.issueWrite();
+        }
+        else {
+            LERROR("No suitable input geometry found.");
+        }
+
+        _invalidationLevel.setValid();
+    }
+
+}

src/tumvis/modules/vis/geometryrenderer.frag

+// ================================================================================================
+// 
+// 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 Universität München
+//      Boltzmannstr. 3, 85748 Garching b. München, Germany
+//