@Override public boolean beginDrawingLayers(){
  while (!inited) {
    try {
      Thread.sleep(10);
    }
 catch (    final InterruptedException e) {
      return false;
    }
  }
  return sceneBuffer.beginUpdatingScene();
}

@ Override public boolean beginDrawingLayers ( ) { while ( ! inited ) { try { Thread . sleep ( 10 ) ; } catch ( final InterruptedException e ) { return false ; } } return sceneBuffer . beginUpdatingScene ( ) ; }
each new step the z value of the first layer is set to 0 .
