title: How to group vertices in Blender for Three.js?
body: <p>What is the best way to group a bunch of vertices in Blender? After exporting I want to manipulate only this group of vertices in ThreeJS (eg. change their position). </p>
  
  <p>I tried:</p>
  
  <ul>
  <li><p>Use the integrated .obj exporter from Blender(v2.73) and the .json exporter
  from  ThreeJS (Add-on "io_three") but they ignored for example
  Blenders "Vertex Group" and did not separate vertices in groups.</p></li>
  <li><p>With the .obj exporter I somehow managed to have a node (type
  "Object3D") with 3 children (type "Mesh") instead of 2 children. And
  in the last child there were some separated vertices of the mesh (but
  not the ones I selected as a Vertex Group in Blender). This probably would be a good solution if I knew how the vertices got in the other child node.</p></li>
  </ul>