搜索了下，找到了些代码片断。
以下转自：http://www.cc-space.com/?p=518
//-----------------------------------------------------------
使用TargetCamera：
程序代码
// 将camera锁定住对象mesh
targetCamera = new TargetCamera3D(10, 100, mesh);
targetCamera.z = -1000;
// 给view赋值：新的camera
view.camera = targetCamera;
锁定摄像机视角：
程序代码
override protected function onPreRender():void
{
sphere1.x = 200*Math.sin(step);
step += 0.1;
target = isLookAt? sphere0 : sphere1;
// flash.display.DisplayObject.tranform.matrix3D.position
// 一个保存显示对象在转换参照帧中的 3D 坐标 (x,y,z) 位置的 Vector3D 对象。
camera.lookAt(target.transform.matrix3D.position);
}
遍历场景中的所有object：
程序代码
protected override function onPreRender():void
{
// 继承关系 Sphere -> AbstractPrimitive -> Mesh -> Object3D -> flash.display.Sprite
for each (var mesh:Mesh in scene.children) {
mesh.rotationX++;
mesh.rotationY++;
mesh.rotationZ++;
}
}
设置3D剪裁窗口大小：
程序代码
// 如果你在代码里设置view.width与view.height不会报错，但不会起作用
private var clipping:RectangleClipping;
clipping = new RectangleClipping();
clipping.minX = -400;
clipping.minY = -300;
clipping.maxX = 400;
clipping.maxY = 300;
private var view:View3D;
view = new View3D();
view.clipping = clipping;
设置layer：（同PV3D中的viewportLayer）
程序代码
// Plane
plane = new Plane(new BitmapFileMaterial("assets/earth.jpg"), 256, 128);
plane.bothsides = true;
plane.rotationX = 45;
plane.y = i*50 - 4*50/2;
scene.addChild(plane);
// Layer
var layer:Sprite = new Sprite();
view.addChild(layer);
// Object3D.layer：An optional layer sprite used to draw into inseatd of the default view.
plane.layer = layer;
// Event
plane.layer.addEventListener(MouseEvent.CLICK, onClick);
private function onClick(event:MouseEvent):void
{
var layer:Sprite = event.target as Sprite;
// 给layer添加滤镜
if(layer.filters.length==0)
layer.filters = [new GlowFilter(0xFF0000, 1, 4, 4, 16, 1)];
else
layer.filters = null;
}
Cast类使用：
程序代码
// Cast：Helper class for casting assets to usable objects
// Casts the given data value as a bitmapdata object.
// 将一个图片class转化成一个bitmapdata
shadeMaterial = new BitmapMaterial(Cast.bitmap(Shade));
// Casts the given data value as a material object.
// 将一个图片class转化成一个material对象
materialArray = [Cast.material(GreenPaint), Cast.material(RedPaint)];
创建DAE模型的两种方法：
程序代码
// 方法一
private var collada:Collada;
private var loader:Loader3D;
private var model:Object3D;
collada = new Collada();
collada.scaling = 600;
collada.centerMeshes = true;
loader = new Loader3D();
loader.loadGeometry("assets/chameleon.dae", collada);
loader.addEventListener(Loader3DEvent.LOAD_SUCCESS, onSuccess);
scene.addChild(loader);
private function onSuccess(event:Loader3DEvent):void
{
model = loader.handle;
}
// 方法二
[Embed(source="assets/mario_testrun.dae",mimeType="application/octet-stream")]
private var _mesh:Class;
private var collada:Collada;
private var model1:ObjectContainer3D;
collada = new Collada();
collada.scaling = 10;
// parseGeometry：Parses 3d file data.
model1 = collada.parseGeometry(_mesh) as ObjectContainer3D;
model1.materialLibrary.getMaterial("FF_FF_FF_mario1").material = material;
scene.addChild(model1);
DAE模型动画设置：
程序代码
// 定义骨骼动画
private var skinAnimation:BonesAnimator;
// BonesAnimator 骨骼动画：hold the animation information for a bones animation imported from a collada object
skinAnimation = model1.animationLibrary.getAnimation("default").animation as BonesAnimator;
// 动起来。。。
private function onEnterFrame(event:Event):void
{
// Updates all channels in the animation with the given time in seconds.
skinAnimation.update(getTimer()*2/1000);
}
获取鼠标在3D场景中的坐标：
程序代码
// scenePosition：The xyz coordinate at which the event occurred in global scene coordinates.
private function onMouseMove(e:MouseEvent3D):void {
position.x = e.scenePosition.x;
position.z = e.scenePosition.z;
}
