<html>
<head>
<title>My first three.js app</title>
<style>
body { margin: 0; }
canvas { 100%; height: 100% }
</style>
</head>
<body>
<script src="../static/three.js-master/build/three.js"></script>
<script>
var scene = new THREE.Scene(); // 场景
var camera = new THREE.PerspectiveCamera( 75, window.innerWidth/window.innerHeight, 0.1, 1000 ); // 摄像机
var renderer = new THREE.WebGLRenderer(); // 渲染器
renderer.setSize( window.innerWidth, window.innerHeight ); // 渲染器宽度
document.body.appendChild( renderer.domElement );
var geometry = new THREE.BoxGeometry( 1, 1, 1 ); // 盒子几何体
var material = new THREE.MeshBasicMaterial( { color: 0x00ff00 } ); // 一种材料，设置集合体颜色
var cube = new THREE.Mesh( geometry, material ); // 网格，也就是几何体
scene.add( cube ); // 几何体创建好后添加到场景中
camera.position.z = 5; // 摄像机的轴坐标
var animate = function () {
requestAnimationFrame( animate ); // 循环渲染
cube.rotation.x += 0.01;
cube.rotation.y += 0.01;
renderer.render( scene, camera ); // 将场景和摄像机通过渲染器渲染出来
};
animate();
</script>
</body>
</html>
附带three.js代码，点击下载