/// <summary>
        /// Render game background
        /// </summary>
        public void RenderGameBackground()
        {
            // Show game background (sky and lensflare)
            skyCube.RenderSky();

            // Render lens flare on top of 3d stuff
            if (Track.disableLensFlareInTunnel == false)
            {
                lensFlare.Render(Color.White);
            }
        }