private void Awake()
        {
            Application.targetFrameRate = CardboardUtility.GetTargetFramerate();

            if (dontDestroyAndSingleton)
            {
                if (_instance == null)
                {
                    DontDestroyOnLoad(gameObject);

                    _instance = this;
                }
                else if (_instance != this)
                {
                    Destroy(gameObject);

                    return;
                }
            }

            SetupRenderTexture();

            CardboardManager.InitCardboard();
            CardboardManager.SetVRViewEnable(defaultEnableVRView);
        }
        private void Awake()
        {
            #if UNITY_IOS
            Application.targetFrameRate = 60;
            #endif

            if (dontDestroyAndSingleton)
            {
                if (instance == null)
                {
                    DontDestroyOnLoad(gameObject);
                    instance = this;
                }
                else if (instance != this)
                {
                    Destroy(gameObject);
                    return;
                }
            }

            SetupRenderTexture();

            CardboardManager.InitCardboard();
            CardboardManager.SetVRViewEnable(defaultEnableVRView);
        }