gl.setSwapInterval(1);
gl.glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
float pos[] = { 5.0f, 5.0f, 10.0f, 0.0f };
gl.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, pos, 0);
gl.glEnable(GL.GL_CULL_FACE);
gl.glEnable(GL.GL_LIGHTING);
gl.glEnable(GL.GL_LIGHT0);
gl.glEnable(GL.GL_DEPTH_TEST);