private void onAirVRDisconnected(AirVRClientMessage message)
    {
        if (_videoFrameRenderer != null)
        {
            _videoFrameRenderer.SetVideoFrameTexture(null);
            _videoFrameRenderer.enabled = false;
        }

        _stateMachine.TriggerDisconnected();
        Delegate.AirVRClientDisconnected();
    }