title: How to migrate from Three.js REVISION: 67 to REVISION: 73
body: <p>I'm new to Three.js</p>
  
  <p>I read a book <a href="http://shop.oreilly.com/product/9781783980864.do" rel="nofollow noreferrer">Three.js Essentials</a></p>
  
  <p>I can not understand why with Three.js REVISION: 67 (which is given in the book) this code <a href="http://pastebin.com/c4Fhs9Hr" rel="nofollow noreferrer">http://pastebin.com/c4Fhs9Hr</a> works (correctly)</p>
  
  <p><a href="https://i.stack.imgur.com/OGbz0.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/OGbz0.png" alt="enter image description here"></a></p>
  
  <p>but with REVISION: 73</p>
  
  <p><a href="https://i.stack.imgur.com/MqoPw.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/MqoPw.png" alt="enter image description here"></a></p>
  
  <p>Tell me please how to fix this problem and why it happens.</p>