title: Transparent textures interfering with each other in three.js
body: <p>I have created a simple human figure. The eyelashes use a texture with transparency.
  However as soon as I turn on transparency for the face texture there is created transparency where it shouldn't be. 
  You can look through the face texture in the part that lies below the eye lashes.</p>
  
  <p>See the effect by toggling face transparency with this line:</p>
  
  <pre><code>mesh.material.materials[3].transparent = false
  mesh.material.materials[3].transparent = true
  </code></pre>
  
  <p>I wish to have transparency turned on for the face texture, so how can I solve this problem?</p>
  
  <p>Demo:
  <a href="http://dev.udart.dk/transparencyProblemStackOverflow/" rel="nofollow noreferrer">http://dev.udart.dk/transparencyProblemStackOverflow/</a>
  (wait for model to load)</p>
  
  <p>Code:
  <a href="https://github.com/vibber/transparencyProblemStackOverflow/blob/gh-pages/index.html" rel="nofollow noreferrer">https://github.com/vibber/transparencyProblemStackOverflow/blob/gh-pages/index.html</a></p>