title: Threejs Transform Matrix ordering
body: <p>I would like to know how threejs ordering multiple matrix?</p>
  
  <p>For instance , </p>
  
  <pre><code>......
  var mesh = new THREE.Mesh( geometry, material );
  mesh.position.set( 0, 20, 0 ); // T , transform matrix
  mesh.rotation.set( 0, Math.PI, 0 );//R , rotation matrix
  mesh.scale.set( 1, 1, 10 );//S , scale matrix
  </code></pre>
  
  <p>So , how threejs to combine three matrix? It will according my set value order(In my example , it is TRS , so final matrix should T*R*S ) or fixed order (For instance, it is always using SRT ordering , the finally matrix is S*R*T)?  </p>