dow.innerWidth) * 2 - 1;
        mouse.y = -(event.clientY / window.innerHeight) * 2 + 1;
    };

    function animate() {
        requestAnimationFrame(animate);
        render();
    };

    var radius = 600;
    var theta = 0;

    function render() {
    	theta += 0.2;
    	camera.position.x = radius * Math.sin(theta * Math.PI / 360);
    	camera.position.y = radius * Math.sin(theta * Math.PI / 360);
    	camera.position.z = radius * Math.cos(theta * Math.PI / 360);
    	camera.lookAt(scene.position);
 