Show pulsar as wireframe model (without texture)

src/pulsaranimationwidget.cpp

@@ -63,7 +63,6 @@ PulsarAnimationWidget::PulsarAnimationWidget(QWidget *parent) :
     m_quadricPulsarMagneticAxis = NULL;
 
     // initialize texture pointers
-    m_pulsarTexture = 0;
     m_backgroundTexture = 0;
 
     // initial render timing settings
@@ -115,7 +114,6 @@ PulsarAnimationWidget::~PulsarAnimationWidget()
     if(m_quadricPulsarSpinAxis) gluDeleteQuadric(m_quadricPulsarSpinAxis);
     if(m_quadricPulsarMagneticAxis) gluDeleteQuadric(m_quadricPulsarMagneticAxis);
 
-    if(m_pulsarTexture) deleteTexture(m_pulsarTexture);
     if(m_backgroundTexture) deleteTexture(m_backgroundTexture);
 }
 
@@ -177,24 +175,6 @@ void PulsarAnimationWidget::initializeGL()
     QString msgPower = tr("%1 texture dimensions not a power of 2!");
     QString msgSize = tr("Maximum texture size exceeded! Scaling down %1 texture to %2x%3...");
 
-    // prepare and check pulsar texture
-    QImage pulsarTexture(":/textures/resources/texture_pulsar.png");
-    if(pulsarTexture.width() != pulsarTexture.height()) {
-        qWarning() << msgShape.arg(tr("Pulsar"));
-    }
-    else {
-        double integer = 0.0;
-        double fraction = 0.0;
-        fraction = modf(log(pulsarTexture.width()) / log(2.0), &integer);
-        if(fraction > 0.0) {
-            qWarning() << msgPower.arg(tr("Pulsar"));
-        }
-    }
-    if(pulsarTexture.width() > maxTextureSize) {
-        qWarning() << msgSize.arg(tr("pulsar").arg(maxTextureSize).arg(maxTextureSize));
-        pulsarTexture = pulsarTexture.scaled(maxTextureSize, maxTextureSize, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
-    }
-
     // prepare and check background texture
     QImage backgroundTexture(":/textures/resources/texture_background_carina.png");
     if(backgroundTexture.width() != backgroundTexture.height()) {
@@ -214,7 +194,6 @@ void PulsarAnimationWidget::initializeGL()
     }
 
     // bind textures
-    m_pulsarTexture = bindTexture(pulsarTexture, GL_TEXTURE_2D, GL_RGBA);
     m_backgroundTexture = bindTexture(backgroundTexture, GL_TEXTURE_2D, GL_RGBA);
 
     // use mipmapped textures
@@ -284,33 +263,27 @@ void PulsarAnimationWidget::paintGL()
         {
             glRotatef(m_pulsarSpinAxisInclination, 0.0, 0.0, 1.0);
             glRotatef(m_pulsarRotationAngle, 0.0, 1.0, 0.0);
+            glRotatef(90, 0.0, 0.0, 0.0);
 
             // draw spin axis
             if(m_showRotationAxes) {
                 glPushMatrix();
                 {
                     glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, translucent);
-                    glRotatef(90.0, 1.0, 0.0, 0.0);
                     glTranslatef(0.0, 0.0, -5.0);
                     gluCylinder(m_quadricPulsarSpinAxis, 0.05, 0.05, 10.0, 32, 1);
+                    glMaterialfv(GL_FRONT, GL_AMBIENT, no_mat);
+                    glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
                 }
                 glPopMatrix();
             }
 
-            // create texture coordinates and enable texturing
-            glEnable(GL_TEXTURE_GEN_S);
-            glEnable(GL_TEXTURE_GEN_T);
-            glBindTexture(GL_TEXTURE_2D, m_pulsarTexture);
-            glEnable(GL_TEXTURE_2D);
-
-            glMaterialfv(GL_FRONT, GL_AMBIENT, no_mat);
-            glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
+            // enable wireframe mode
+            glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);
+            // draw pulsar
             gluSphere(m_quadricPulsar, 1.0, 32, 32);
-
-            // disable texturing
-            glDisable(GL_TEXTURE_GEN_S);
-            glDisable(GL_TEXTURE_GEN_T);
-            glDisable(GL_TEXTURE_2D);
+            // disable wireframe mode
+            glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
         }
         glPopMatrix();
 

src/pulsaranimationwidget.h

@@ -89,7 +89,6 @@ private:
     GLUquadricObj *m_quadricPulsarSpinAxis;
     GLUquadricObj *m_quadricPulsarMagneticAxis;
 
-    GLuint m_pulsarTexture;
     GLuint m_backgroundTexture;
 
     int m_framesPerSecond;

src/pulsatingscience.qrc

 <RCC>
-  <qresource prefix="icons" >
+    <qresource prefix="/icons">
         <file>resources/control-pause.png</file>
         <file>resources/control-quit.png</file>
         <file>resources/control-run.png</file>
@@ -9,11 +9,10 @@
         <file>resources/help-website.png</file>
         <file>resources/aei-icon48.png</file>
     </qresource>
-  <qresource prefix="i18ns" >
+    <qresource prefix="/i18ns">
         <file>resources/pulsatingscience_de.qm</file>
     </qresource>
-  <qresource prefix="textures" >
+    <qresource prefix="/textures">
         <file>resources/texture_background_carina.png</file>
-    <file>resources/texture_pulsar.png</file>
     </qresource>
 </RCC>