title: ThreeJS geometry flipping
body: <p>I am facing a problem with geometry flipping, I tried flipping using the negative scale technique but it fails. </p>
  
  <p>What is the technique that I can use to flip a 3d object across specific axis?</p>
  
  <p>By flipping I mean the object should look as it was rendered over a mirror.</p>
  
  <p>if this is not possible through three.js rendering how can I use Blender to achieve this?</p>