added UI

QTProject/mainwidget.cpp

@@ -128,10 +128,20 @@ void MainWidget::loadNewMesh(QString path){
         return;
 
     qDebug()<<"Opening File:"<<path;
-    Mesh* temp =  new Mesh(this,path);
-    mesh = subdivision->subdivide(temp);
+    mesh =  new Mesh(this,path);
+
+}
+
+void MainWidget::subdivide(int level){
+    subdivision->subdivide(mesh);
 }
 
+void MainWidget::setdebugOutput(bool output){
+    subdivision->setDebugOutbut(output);
+}
+
+
+
 void MainWidget::setRotation(bool started){
     qDebug()<<"rotation"<<started;
     this->rotation = started;

QTProject/mainwidget.h

@@ -31,6 +31,8 @@ public slots:
     void loadNewMesh(QString path);
     void setRotation(bool started);
     void setWireframe(bool active);
+    void subdivide(int level);
+    void setdebugOutput(bool output);
 
 
 

QTProject/mainwindow.cpp

@@ -34,6 +34,21 @@ MainWindow::MainWindow(QWidget *parent) :
     connect(CamHome, SIGNAL(triggered()), cam, SLOT(home()));
     toolBar->addAction(CamHome);
 
+    debugOutput = new QAction("DebugOutput",this);
+    debugOutput->setCheckable(true);
+    debugOutput->setChecked(false);
+    connect(debugOutput, SIGNAL(triggered(bool)), m_centralWidget, SLOT(setdebugOutput(bool)));
+    toolBar->addAction(debugOutput);
+
+    subdivSlider = new QSlider(Qt::Horizontal);
+    subdivSlider->setMinimum(0);
+    subdivSlider->setMaximum(10);
+    subdivSlider->setSliderPosition(0);
+
+    connect(subdivSlider, SIGNAL(valueChanged(int)),
+            m_centralWidget, SLOT(subdivide(int)));
+    toolBar->addWidget(subdivSlider);
+
 
     this->setCentralWidget(m_centralWidget);
 

QTProject/mainwindow.h

@@ -26,7 +26,8 @@ private:
     QAction *switchRotation;
     QAction *switchWireframe;
     QAction *CamHome;
-
+    QAction *debugOutput;
+    QSlider *subdivSlider;
 
 };
 

QTProject/mesh.cpp

@@ -47,6 +47,25 @@ void Mesh::MeshEntry::init(QOpenGLFunctions_4_3_Core *f,QVector<Vertex>& Vertice
     }
 }
 
+ void Mesh::MeshEntry::update(GLuint VB, QVector<Vertex>& Vertices, QVector<unsigned int>& Indices){
+
+
+
+
+     numIndex = Indices.size();
+     indices = Indices;
+     vertices = Vertices;
+
+     f->glDeleteBuffers(1, &IB_handle);
+     f->glGenBuffers(1, &IB_handle);
+     f->glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, IB_handle);
+     f->glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(unsigned int) * numIndex, &Indices[0], GL_STATIC_DRAW);
+
+     f->glDeleteBuffers(1, &VB_handle);
+     VB_handle = VB;
+
+ }
+
 Mesh::MeshEntry::~MeshEntry()
 {
     f->glDeleteBuffers(1, &VB_handle);

QTProject/mesh.h

@@ -65,6 +65,8 @@ public:
         void init(QOpenGLFunctions_4_3_Core *f,QVector<Vertex>& Vertices,
                   QVector<unsigned int>& Indices);
 
+        void update(GLuint VB_handle,QVector<Vertex>& Vertices, QVector<unsigned int>& Indices);
+
         QString name;
         GLuint VB_handle;
         GLuint IB_handle;

QTProject/subdivision.cpp

@@ -3,6 +3,7 @@
 Subdivision::Subdivision(QOpenGLFunctions_4_3_Core *f)
 {
     this->f =f;
+    debugOutput = false;
 }
 
 Subdivision::~Subdivision()
@@ -10,6 +11,10 @@ Subdivision::~Subdivision()
     delete edgeShader;
 }
 
+void Subdivision::setDebugOutbut(boolean debug){
+    this->debugOutput = debug;
+}
+
 void Subdivision::init() {
     QString source = QLatin1String(":/subdivision-edge.compute");
     edgeShader = initComputeShaderProgram(source);
@@ -58,7 +63,9 @@ Mesh *Subdivision::subdivide(Mesh *mesh) {
     Tables tables = precomputeTables(input);
     Result result = runShader(input, tables);
 
-    return new Mesh(f, mesh, result.vertex_buffer, tables.index_buffer);
+    current_mesh->update(result.vb_handle,result.vertex_buffer, tables.index_buffer);
+
+    //return new Mesh(f, mesh, result.vertex_buffer, tables.index_buffer);
 }
 
 /**
@@ -76,12 +83,14 @@ Subdivision::Tables Subdivision::precomputeTables(Input input) {
     Tables tables;
 
     QVector<unsigned int> ib = input.index_buffer;
+    if(debugOutput)
         qDebug()<<"Index Buffer: "<<ib;
 
     QVector<Vertex> vb = input.vertex_buffer;
-    //qDebug()<<"Vertex Buffer: "<<vb;
+    if(debugOutput)
+        qDebug()<<"Vertex Buffer: "<<vb;
 
-//compute edge table
+    //compute edge table
     //Format: first two entries: edge vertices. last two entries: distant vertices.
 
     unsigned int nib_offset = vb.length();
@@ -238,15 +247,16 @@ Subdivision::Tables Subdivision::precomputeTables(Input input) {
         //Wichtig: Wir gehen davon aus, dass wir geschlossene Oberflächen haben, dh für jede Kante von einem Dreieck wird eine passende Kante bei einem anderen Dreieck gefunden.
     }//for each index in indexbuffer
 
-    qDebug()<<"Done with edge table. "<<tables.edge_indices.length()<<" edges found. Table: "<<tables.edge_indices;
-    if (true){
+    qDebug()<<"Done with edge table. "<<tables.edge_indices.length();
+    if (debugOutput){
+        qDebug()<<"Eedges found. Table: "<<tables.edge_indices;
         qDebug()<<"Table (long version):";
         for (int i = 0; i < tables.edge_indices.length(); i++){
             qDebug()<<"blub:"<<tables.edge_indices[i];
         }
     }
 
-//compute vertex table
+    //compute vertex table
     //Format: First entry: original vertex. Other entries: adjacent vertices.
     QVector<QVector<unsigned int> > duplicates;//for debugging
     unsigned int offset = 0;
@@ -306,15 +316,18 @@ Subdivision::Tables Subdivision::precomputeTables(Input input) {
         if (!duplicates.contains(d)) duplicates.push_back(d);
     }
 
-    qDebug()<<"Done with vertex index table. ";
+
 
     tables.vertex_offsets.push_back(offset);
 
+    qDebug()<<"Done with vertex index table. ";
+    if(debugOutput){
         qDebug()<<"Duplicates: ";
         for (int i = 0; i < duplicates.length(); i++){
             qDebug()<<duplicates[i];
         }
-
+    }
+    qDebug()<<"Precompute Tables Done";
     return tables;
 }
 
@@ -358,16 +371,24 @@ Subdivision::Result Subdivision::runShader(Input input, Tables &tables) {
     f->glBindBuffer(GL_SHADER_STORAGE_BUFFER, output_handle);
     Vertex *ptr;
     ptr = (Vertex *) f->glMapBuffer(GL_SHADER_STORAGE_BUFFER, GL_WRITE_ONLY);
+
+    if(debugOutput)
         qDebug() << "New vertices:";
+
     for (int i = 0; i < input.vertex_buffer.size(); i++) {
+        if(debugOutput)
             qDebug() << ptr[i].pos;
         result.vertex_buffer.push_back(ptr[i]);
     }
+    if(debugOutput)
         qDebug() << "New edge points:";
     for (int i = 0; i < tables.edge_indices.size() / 4; i++) {
+        if(debugOutput)
             qDebug() << ptr[edgeOffset + i].pos;
         result.vertex_buffer.push_back(ptr[edgeOffset + i]);
     }
+
+
     f->glUnmapBuffer(GL_SHADER_STORAGE_BUFFER);
 
     // Delete the buffers the free the resources

QTProject/subdivision.h

@@ -14,8 +14,11 @@ public:
 
     void init();
     Mesh *subdivide(Mesh *mesh);
+    void setDebugOutbut(boolean debug);
 
 private:
+    boolean debugOutput;
+
     struct Input
     {
         GLuint vb_handle;
@@ -46,6 +49,7 @@ private:
     Result runShader(Input input, Tables &tables);
     void runVertexShader(GLuint size, GLuint vb_handle, GLuint vertex_indices_handle, GLuint vertex_offsets_handle, GLuint output_handle);
     void runEdgeShader(GLuint size, GLuint vb_handle, GLuint edge_indices_handle, GLuint output_handle, GLuint offset);
+
 };
 
 #endif