) {
            vec2 st = gl_FragCoord.xy/u_resolution.xy;
            gl_FragColor=vec4(st.x,st.y,0.0,1.0);
        }
    </script>

    <script>
        var container;
        var camera, scene, renderer, clock;
        var uniforms;
        var mouse = {x:0, y:0};

        document.onmousemove = getMouseXY;

        init();
        animate();

        function getMouseXY(e) {
            mouse.x = e.pageX;
            mouse.y = e.pageY;
        }

        function init() {
            container = documen