Make Earth 20% translucent (IFOs unaffected though)

src/pulsaranimationwidget.cpp

@@ -246,12 +246,22 @@ void PulsarAnimationWidget::paintGL()
             glRotatef(90, 1.0, 0.0, 0.0);
             glRotatef(180, 1.0, 1.0, 0.0);
 
+            glDisable(GL_DEPTH_TEST);
+            glEnable(GL_CULL_FACE);
+            glColor4f(1.0, 1.0, 1.0f, 0.8f);
+
             // create texture coordinates and enable texturing
             gluQuadricTexture(m_quadricEarth, GL_TRUE);
             glBindTexture(GL_TEXTURE_2D, m_beamTexture);
             glEnable(GL_TEXTURE_2D);
 
+            glCullFace(GL_FRONT);
+            gluSphere(m_quadricEarth, m_earthRadius, 32, 32);
+            glCullFace(GL_BACK);
             gluSphere(m_quadricEarth, m_earthRadius, 32, 32);
+
+            glDisable(GL_CULL_FACE);
+            glEnable(GL_DEPTH_TEST);
         }
         glPopMatrix();
     }