title: three.js rotate Object3d around Y axis at it center
body: <p>I have an <code>Object3d</code> in <code>Three.JS</code> that is a group of some Mesh objects.<br>
  I want to rotate this group around the Y axis, at it center, that is far from world center (0,0,0).<br>
  I just know the <code>Group.rotate.y += deg</code> code, but for each axis direction it always rotate the object around (0,0,0), not my group center!<br>
  How can i fix this?  </p>
  
  <h2>UPDATE:</h2>
  
  <p>Read the comments</p>