title: opengl - possibility of a mirroring shader?
body: <p>Until today, when I wanted to create reflections (a mirror) in <code>opengl</code>, I rendered a view into a texture and displayed that texture on the mirroring surface.</p>
  
  <p>What i want to know is, are there any <strong>other methods to create a mirror</strong> in opengl?</p>
  
  <p>And 2. can this be done <strong>lonely in shaders</strong> (e.g. geometry shader) ?</p>