相关疑难解决方法(0)

我有很多精灵排列在3D空间,他们的父容器应用了旋转.如何反转精灵3D旋转,他们总是面对相机(Actionscript 3)？

下面是代码来测试它:

package{
import flash.display.Sprite;
import flash.events.Event;
public class test extends Sprite{

var canvas:Sprite = new Sprite();
var sprites:Array = []

public function test(){
    addChild(canvas)
    for (var i:int=0;i<20;i++){
        var sp:Sprite = new Sprite();
        canvas.addChild(sp);
        sp.graphics.beginFill(0xFF0000);
        sp.graphics.drawCircle(0,0,4);
        sp.x = Math.random()*400-200;
        sp.y = Math.random()*400-200;
        sp.z = Math.random()*400-200;
        sprites.push(sp);
    }
    addEventListener(Event.ENTER_FRAME,function():void{
        canvas.rotationX++;
        canvas.rotationY = canvas.rotationY+Math.random()*2;
        canvas.rotationZ++;
        for (var i:int=0;i<20;i++){
            //this is not working...
            sprites[i].rotationX = -canvas.rotationX
            sprites[i].rotationY = -canvas.rotationY
            sprites[i].rotationZ = -canvas.rotationZ
        }
    })
}
}
}

我猜我必须用sprites的rotation3D矩阵做一些魔法......我试图实现这个脚本:http://ughzoid.wordpress.com/2011/02/03/papervision3d-sprite3d/,但是如此成功 …