利用PHP动态生成VRML网页

多年前本人开始从事三维动画方面的学习，后学习了PHP，发现可以通过PHP动态生成VRML文档，有点类似于Generator动态生成Flash的方式。;;由于VRML博大精深，这里只介绍一个简单的例子，还可以将各种VRML结点存入数据库中，这样的虚拟现实网页将……，爽！;;下面是源程序。注意：在服务器上，要将让PHP处理wrl格式的文档，否则后果将是没有任何虚拟现实。本源程序直接存成wrl文件，在浏览器中要安装插件，可以到我的另一个主页上去下载：http://go.163.com/~sjtucaocao/;;<?php header("Content-type: application/x-vrml");$txt="#VRML V2.0 utf8;;DEF leftBox Transform;;{;;translation -5 0 0;;children;;[;;Shape;;{;;appearance Appearance;;{;;material Material;;{;;diffuseColor 1 0 0;;};;};;geometry Box{};;};;DEF SphereChild Shape;;{;;appearance Appearance;;{;;material Material;;{;;diffuseColor 1 0 1;;};;};;geometry Sphere;;{;;radius 1.2;;};;};;];;};;DEF rightBox Transform;;{;;translation 5 0 0;;children;;[;;Shape;;{;;appearance Appearance;;{;;material Material;;{;;diffuseColor 0 0 1;;};;};;geometry Box{};;};;];;};;DEF onoff Transform;;{;;translation 0 -1 0;;children;;[;;Shape;;{;;appearance Appearance;;{;;material Material;;{;;diffuseColor 0 1 0;;};;};;geometry Box{};;};;DEF TS TouchSensor{};;];;};;DEF S Script;;{;;eventIn SFBool isActive;;eventOut MFNode child;;field MFNode testNode USE SphereChild;;url;;"javascript:;;function isActive(value);;{;;if (value);;{;;child=testNode;;;};;};;";;};;ROUTE TS.isActive TO S.isActive;;ROUTE S.child TO leftBox.removeChildren;;ROUTE S.child TO rightBox.addChildren";echo $txt;;;?>;;;