title: Invert material image of sphere in three.js
body: <p>I'm using a plugin that implements 360 / VR video into our video player. It does this by using Three.js to create a sphere and taking the video itself and making it the material the sphere is created out of. The viewport is then set inside of the sphere to give it the 360 view.</p>
  
  <p>The problem I'm running into is that the material is placed on the sphere using THREE.DoubleSide (THREE.BackSide would also work since we're only viewing it from the inside of the sphere), but the image is inverted since we are viewing it from the inside.</p>
  
  <p>Is there a way to invert the image material that is placed on the sphere?</p>