public static async Task LoadBrowserWithURLAsync()
        {
#if VSYNC_OFF
            VSync = VSyncMode.Off;
#else
            VSync = VSyncMode.On;
#endif

            await Task.Run(() =>
            {
                browser       = new X3DBrowser(VSync, url, Resolution.Size800x600, new GraphicsMode(32, 16, 0, 4));
                browser.Title = "Initilising..";
#if VSYNC_OFF
                browser.Run();
#else
                browser.Run(60);
#endif
            });
        }
        public static async Task LoadBrowserWithGraphAsync(SceneGraph graph)
        {
            await Task.Run(() =>
            {
                browser = new X3DBrowser(
                    OpenTK.VSyncMode.On,
                    graph,
                    Resolution.Size800x600,
                    new GraphicsMode(32, 16, 0, 4)
                    );

                browser.Title = "Initilising";

                browser.Run(60);
            });
        }