title: gluLookAt doesn't work
body: <p>i'm programming with opengl and i want to change the camera view:</p>
  
  <p>...</p>
  
  <pre><code>void RenderScene() //Zeichenfunktion
  {
  
   glClearColor( 1.0, 0.5, 0.0, 0 );
      glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); 
     glLoadIdentity ();  
  
  
      //1.Form:
      glBegin( GL_POLYGON );  //polygone
  
      glColor3f( 1.0f, 0.0f, 0.0f );  //rot
      glVertex3f( -0.5, -0.5, -0.5 ); //unten links   3 =3 koords, f=float
  
  
      glColor3f( 0.0f, 0.0f, 1.0f ); //blau 
      glVertex3f(  0.5, -0.5, -0.5 ); //unten rechts
      glVertex3f(  0.5,  0.5, -0.5 );//oben rechts
      glVertex3f( -0.5,  0.5, -0.5 );//oben links
      glEnd();
  
  
  
      Wuerfel(0.7);   //creates cube with length 0.7
  
      gluLookAt ( 0., 0.3, 1.0, 0., 0.7, 0., 0., 1., 0.);
  
  
  
  
     glFlush(); //Buffer leeren   
  }
  </code></pre>
  
  <p>...</p>
  
  <p>when i change the parameter of gluLookAt, nothing happens, what do i wrong?
  thanks</p>