private void LoadModel(string modelName, params string[] txds)
        {
            if (_frames != null)
            {
                Destroy(_frames.Root.gameObject);
                Destroy(_frames);
                _loadedAnims.Clear();
            }

            var geoms = Geometry.Load(modelName, txds);

            _frames = geoms.AttachFrames(transform, MaterialFlags.Default);

            _root = _frames.GetByName("Root");

            m_rightFinger = _frames.GetByName(" R Finger").transform;
            m_leftFinger  = _frames.GetByName(" L Finger").transform;
        }