Material

A1/hellocube/cubewidget.cpp

@@ -20,18 +20,23 @@ void CubeWidget::initializeGL ()
 {
     glClearColor(0.0, 0.0, 0.0, 0.0);
     glEnable(GL_DEPTH_TEST);
-    glEnable(GL_CULL_FACE);
 
 
     // enable default shading
     showFlat();
 
-    // glEnable(GL_LIGHTING);
+    glEnable(GL_LIGHTING);
     glEnable(GL_LIGHT0);
     static GLfloat lightPosition[4] = { 0.5, 0.0, 2.0, 1.0 };
     glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);
 }
 
+void CubeWidget::setMaterial(GLfloat *color )
+{
+    glMaterialfv(GL_FRONT,GL_DIFFUSE,color);
+    glMaterialfv(GL_FRONT,GL_SPECULAR,color);
+    glMaterialfv(GL_FRONT,GL_SHININESS,color);
+}
 
 void CubeWidget::paintGL ( )
 {
@@ -41,38 +46,46 @@ void CubeWidget::paintGL ( )
     glRotated(45,1,0,0);
     glRotated(45,0,1,0);
 
-    glBegin(GL_QUADS);                                  // Draw A Quad
-    glColor3f(0.0f,1.0f,0.0f);
+
+    GLfloat red[] = {1.0,0.0,0.0};
+    GLfloat green[] = {0.0,1.0,0.0};
+    GLfloat blue[] = {0.0,0.0,1.0};
+    GLfloat cyan[] = {0.0,1.0,1.0};
+    GLfloat magenta[] = {1.0,0.0,1.0};
+    GLfloat yellow[] = {1.0,1.0,0.0};
+
+    glBegin(GL_QUADS);
+    setMaterial(red);
     glVertex3f( 0.5f, 0.5f,-0.5f);
     glVertex3f(-0.5f, 0.5f,-0.5f);
     glVertex3f(-0.5f, 0.5f, 0.5f);
     glVertex3f( 0.5f, 0.5f, 0.5f);
 
-    glColor3f(0.0f,1.0f,1.0f);
+    setMaterial(magenta);
     glVertex3f( 0.5f,-0.5f, 0.5f);
     glVertex3f(-0.5f,-0.5f, 0.5f);
     glVertex3f(-0.5f,-0.5f,-0.5f);
     glVertex3f( 0.5f,-0.5f,-0.5f);
 
-    glColor3f(1.0f,0.0f,0.0f);
+    setMaterial(green);
     glVertex3f( 0.5f, 0.5f, 0.5f);
     glVertex3f(-0.5f, 0.5f, 0.5f);
     glVertex3f(-0.5f,-0.5f, 0.5f);
     glVertex3f( 0.5f,-0.5f, 0.5f);
 
-    glColor3f(1.0f,0.0f,1.0f);
+    setMaterial(yellow);
     glVertex3f( 0.5f,-0.5f,-0.5f);
     glVertex3f(-0.5f,-0.5f,-0.5f);
     glVertex3f(-0.5f, 0.5f,-0.5f);
     glVertex3f( 0.5f, 0.5f,-0.5f);
 
-    glColor3f(0.0f,0.0f,1.0f);
+    setMaterial(blue);
     glVertex3f(-0.5f, 0.5f, 0.5f);
     glVertex3f(-0.5f, 0.5f,-0.5f);
     glVertex3f(-0.5f,-0.5f,-0.5f);
     glVertex3f(-0.5f,-0.5f, 0.5f);
 
-    glColor3f(1.0f,1.0f,0.0f);
+    setMaterial(cyan);
     glVertex3f( 0.5f, 0.5f,-0.5f);
     glVertex3f( 0.5f, 0.5f, 0.5f);
     glVertex3f( 0.5f,-0.5f, 0.5f);
@@ -107,23 +120,31 @@ void CubeWidget::perspective(GLdouble fovy, GLdouble aspect, GLdouble zNear, GLd
 
 void CubeWidget::showWireframe()
 {
+
     qDebug("show Wireframe");
     glShadeModel(GL_FLAT);
-    glPolygoneMode(GL_FRONT, GL_LINE);
+    glDisable(GL_CULL_FACE);
+
+     glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);
+     repaint();
 }
 
 void CubeWidget::showFlat()
 {
     qDebug("show Flat");
     glShadeModel(GL_FLAT);
-    glPolygoneMode(GL_FRONT, GL_FILL);
+    glEnable(GL_CULL_FACE);
+    glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
+    repaint();
 }
 
 void CubeWidget::showGouraut()
 {
     qDebug("show Gouraut");
     glShadeModel(GL_SMOOTH);
-    glPolygoneMode(GL_FRONT, GL_FILL);
+    glEnable(GL_CULL_FACE);
+    glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
+    repaint();
 }
 
 void CubeWidget::showPhong()
@@ -135,7 +156,7 @@ void CubeWidget::showPhong()
 
 void CubeWidget::setTessellation(int t)
 {
-
+    qDebug()<<"Tesselation" << t;
 }
 
 void CubeWidget::mousePressEvent(QMouseEvent *event ) {}

A1/hellocube/cubewidget.h

@@ -35,6 +35,7 @@ public slots:
 
 private:
     void perspective(GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar);
+    void setMaterial(GLfloat *color );
 };
 
 #endif // CUBEWIDGET_H

A1/hellocube/mainwindow.cpp

@@ -61,6 +61,13 @@ MainWindow::MainWindow(QWidget *parent)
 
     camHome = new QAction(QIcon(":/img/cam_home.png"),"Cam Home", toolBar);
 
+    slider = new QSlider(Qt::Horizontal,toolBar);
+    slider->setMinimum( 0 );
+    slider->setMaximum( 4 );
+    slider->setValue( 0 );
+    connect(slider,SIGNAL(valueChanged(int)),mainWidget,SLOT(setTessellation(int)));
+   // slider->setSizePolicy();
+
     // Assemble Menus
     fileMenu->addAction(exitAction);
     menuBar->addMenu(fileMenu);
@@ -80,6 +87,7 @@ MainWindow::MainWindow(QWidget *parent)
     toolBar->addAction(flatAction);
     toolBar->addAction(gouraudAction);
     toolBar->addAction(phongAction);
+    toolBar->addWidget(slider);
     toolBar->addAction(camHome);
     addToolBar( toolBar);
 

A1/hellocube/mainwindow.h

@@ -10,6 +10,7 @@
 #include <QMessageBox>
 #include <QToolBar>
 #include <QStatusBar>
+#include <QSlider>
 
 #include <cubewidget.h>
 
@@ -37,6 +38,7 @@ private:
 
     QToolBar *toolBar;
     QStatusBar *statusBar;
+    QSlider *slider;
 
     CubeWidget *mainWidget;