static void Main(string[] args) { using (Screen screen = new Screen(800, 600, "OpenTK Testing")) { float[] vertices = new float[] { 0.0f, 100f, 0f, 0.0f, 0.0f, 0f, 10f, 0.0f, 0f, 10f, 100f, 0f, }; Polygon p = new Polygon(vertices); screen.Children.Add(p); screen.Run(60.0); } }