Unity3D-VR手柄控制器的实现

导入SteamVR插件，把SteamVR/Prefabs/[CameraRig]拖入场景，Controller (left)表示左手控制器，Controller (right)表示右手控制器，Camera (head)表示头
这里只以右手手柄为例

    protected SteamVR_TrackedObject _rightTrackedObj;
    protected SteamVR_Controller.Device _rightDevice;
    private void PlayerInput()
    {
     try
        {
            _rightDevice = SteamVR_Controller.Input((int)_rightTrackedObj.index);
        }
        catch(System.IndexOutOfRangeException e)
        {
            System.Console.WriteLine(e.Message);
        }

        if(_rightDevice != null)
        {