利用three.js展示obj模型
环境：必须是在web服务器中。
下载objShow.js
<body>
<script src='obj/three.min.js'></script>
<script src='obj/OrbitControls.js'></script>
<script src='obj/OBJLoader.js'></script>
<script src='obj/objShow.js'></script>
<script type="text/javascript">
objShow('/obj/obj2.obj');
</script>
</body>
