用PHP動態產生虛擬現實VRML網頁

多年前本人開始從事三維動畫方面的學習，後學習了PHP，發現可以通過PHP動態產生VRML文檔，有點類似於Generator動態產生Flash的方式。
由於VRML博大精深，這裡只介紹一個簡單的例子，還可以將各種VRML結點存入資料庫中，這樣的虛擬現實網頁將……，爽！
下面是來源程式。注意：在伺服器上，要將讓PHP處理wrl格式的文檔，否則後果將是沒有任何虛擬現實。本來源程式直接存成wrl檔案，在瀏覽器中要安裝外掛程式，可以到我的另一個首頁上去下載：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;
?>