title: C++ OpenGL gluLookAt
body: <p>I have used the OpenGL command</p>
  
  <p><code>gluLookAt(eyeX, eyeY, eyeZ, centerX, centerY, centerZ, upX, upY, upZ)</code></p>
  
  <p>I basically want to undo this operation so that my camera is back to the origin and facing <code>-z</code>.
  I have read (on various sites) that a couple of basic glRotatef commands along with <code>glTranslate(-eyeY, -eyeY, -eyeZ)</code> can achieve the desired result.</p>
  
  <p>But I am not able to figure out the what exactly the glRotate commands would be.</p>