public void buildScene(ColladaModel model) {
   for (ColladaSceneNode node : nodes) {
     if (node.isGeometry()) {
       node.buildSceneNode(model);
     }
   }
 }
  public ColladaSceneNode getNodeById(String text) {
    for (ColladaSceneNode node : nodes) {
      if (node.getId().equalsIgnoreCase(text)) {
        return node;
      }
    }

    return null;
  }