Code
function main() {
var scene = new ZERO.Scene();
var geometry = new ZERO.PointGeometry();
var material = new ZERO.MeshBasicMaterial({color: 0xff0000});
var mesh = new ZERO.Mesh(geometry, material);
scene.add(mesh);
var width = 500;
var height = 500;
var fov = 30;
var aspect = width / height;
var near = 0.1;
var far = 1000;
var camera = new ZERO.PerspectiveCamera(fov, aspect, near, far);
camera.position.set(500);
var directionalLight = new ZERO.DirectionalLight(0x00ffff);
directionalLight.position.set(1.0);
scene.add(directionalLight);
var renderer = new ZERO.WebGLRenderer();
renderer.setSize(width, height);
document.getElementById('demo').appendChild(renderer.domElement);
renderer.render(scene, camera);
}
document.addEventListener('DOMContentLoaded', main, false);