title: Opengl Selective glClipPlane
body: <p>I have a scene drawn in openGL (openGl 1.1 win32).</p>
  
  <p>I use glClipPlane to hide foreground objects to allow the user to see/edit distance parts. The selection is done natively without using openGL.</p>
  
  <p>But the glClipPlane applies to all openGL elements - coordinate icons, gridlines etc and even elements drawn in gluOrtho2D on top - scale bars, selection boxes etc.</p>
  
  <p>Is there anyway to selective override the clipplanes to allow these elements to be drawn while clipping the main scene?</p>