Infographie

   public void display( GLAutoDrawable drawable ) {

      final GL2 gl = drawable.getGL().getGL2(); 

      gl.glColor3f(1f,0f,0f); //applying red

      // Clear The Screen And The Depth Buffer 

      gl.glClear( GL2.GL_COLOR_BUFFER_BIT |  

      GL2.GL_DEPTH_BUFFER_BIT );   

      gl.glLoadIdentity();       // Reset The View    

      gl.glRotatef( rpoly, 0.0f, 1.0f, 0.0f ); 

      gl.glBegin( GL2.GL_POLYGON ); 

      gl.glVertex3f( 0f,0.5f,0f ); 

      gl.glVertex3f( -0.5f,0.2f,0f ); 

      gl.glVertex3f( -0.5f,-0.2f,0f ); 

      gl.glVertex3f( 0f,-0.5f,0f ); 

      gl.glVertex3f( 0f,0.5f,0f ); 

      gl.glVertex3f( 0.5f,0.2f,0f ); 

      gl.glVertex3f( 0.5f,-0.2f,0f ); 

      gl.glVertex3f( 0f,-0.5f,0f ); 

      gl.glEnd(); 

      gl.glFlush(); 

      rpoly += 0.2f;  //assigning the angle 

      gl.glEnable( GL2.GL_LIGHTING );  

      gl.glEnable( GL2.GL_LIGHT0 );  

      gl.glEnable( GL2.GL_NORMALIZE );  

      // weak RED ambient 

      float[] ambientLight = { 0.1f, 0.f, 0.f,0f };  

      gl.glLightfv(GL2.GL_LIGHT0, GL2.GL_AMBIENT, ambient-Light, 0);  

      // multicolor diffuse 

      float[] diffuseLight = { 1f,2f,1f,0f };  

      gl.glLightfv( GL2.GL_LIGHT0, GL2.GL_DIFFUSE, diffuse-Light, 0 ); 

   }