Away3D实例教程 - 贴图（EnviroBitmapMaterial）

package

{

importaway3d.cameras.HoverCamera3D;

importaway3d.containers.ObjectContainer3D;

importaway3d.containers.View3D;

importaway3d.core.math.Number3D;

importaway3d.core.utils.Cast;

importaway3d.materials.BitmapMaterial;

importaway3d.materials.EnviroBitmapMaterial;

importaway3d.primitives.Plane;

importaway3d.primitives.Sphere;

importaway3d.primitives.Torus;

importflash.display.Sprite;

importflash.events.Event;

importflash.events.MouseEvent;

[SWF(width="600",height="500",frameRate="60",backgroundColor="#FFFFFF")]

publicclassenviroBitmapMaterialextendsSprite

{

//定义变量

privatevarview:View3D;

privatevarcam:HoverCamera3D;

privatevarplaneMaterial:BitmapMaterial;

privatevartorusMaterial:EnviroBitmapMaterial;

privatevarplane:Plane;

privatevargroup:ObjectContainer3D;

privatevartorus:Torus;

privatevarmouseDown:Boolean;

privatevarlastMouseX:Number;

privatevarlastMouseY:Number;

privatevarlastPanangle:Number;

privatevarlastTiltangle:Number;

privatevarcameraSpeed:Number;

//嵌入图片,goldbackground.jpg用于背景及环境图；adobe_ico.jpg是圆环的皮肤

[Embed(source="resources/goldbackground.jpg")]privatevargoldImage:Class;

[Embed(source="resources/nooon.jpg")]privatevarskinImage:Class;

publicfunctionenviroBitmapMaterial()

{

//新建各贴图材质，备用。

createMaterial();

//inital3D

init3D();

//create3DScene

createScene();

//addLsitener

addEventListener(Event.ENTER_FRAME,update);

stage.addEventListener(MouseEvent.MOUSE_DOWN,m_down_h);

stage.addEventListener(MouseEvent.MOUSE_UP,m_up_h);

}

privatefunctioncreateMaterial():void

{

//背景的贴图材质为BitmapMaterial

planeMaterial=newBitmapMaterial(Cast.bitmap(newgoldImage()),{smooth:true,precision:5});

//圆环要反射环境，用EnviroBitmapMaterial

//EnviroBitmapMaterial构造函数EnviroColorMaterial(color:*,enviroMap:BitmapData,init:Object=null)

//第二个参数必须是BitmapData，用于设置反射环境图，本例与背景平面用同一张图goldBackground

torusMaterial=newEnviroBitmapMaterial(Cast.bitmap(newskinImage()),Cast.bitmap(newgoldImage()));

//设置EnviroBitmapMaterial的反射系数，数值为0～1,自行设定数值大小看看效果。

torusMaterial.reflectiveness=0.4;

//在这里顺便设置下后面要用到的一个参数cameraSpeed，这个参数影响：拖动鼠标是整个场景旋转速度。

cameraSpeed=.3;

};

privatefunctioninit3D():void

{

cam=newHoverCamera3D({focus:300});

cam.lookAt(newNumber3D(0,0,0));

cam.distance=900;

cam.panangle=cam.targetpanangle=30;

cam.tiltangle=cam.targettiltangle=15;

cam.mintiltangle=5;

view=newView3D({camera:cam,x:300,y:250});

addChild(view);

};

privatefunctioncreateScene():void

{

group=newObjectContainer3D();

//创建背景平面

plane=newPlane({material:planeMaterial,width:250,height:250,segmentsW:8,segmentsH:8});

//创建圆环

//radius:圆环总半径；tube:环的圆管半径

//所使用的材质为torusMaterial，它是EnviroBitmapMaterial

torus=newTorus({material:torusMaterial,radius:30,tube:20,segmentsR:15,segmentsT:12});

torus.y=55;

view.scene.addChild(group);

group.addChild(plane);

group.addChild(torus);

};

privatefunctionupdate(e:Event):void

{

if(mouseDown)

{

cam.targetpanangle=cameraSpeed*(stage.mouseX-lastMouseX)+lastPanangle;

cam.targettiltangle=cameraSpeed*(stage.mouseY-lastMouseY)+lastTiltangle;

};

torus.yaw(-1);

torus.pitch(-1);

torus.roll(-1);

cam.hover();

view.render();

};

privatefunctionm_down_h(e:MouseEvent):void

{

mouseDown=true;

lastMouseX=stage.mouseX;

lastMouseY=stage.mouseY;

lastPanangle=cam.targetpanangle;

lastTiltangle=cam.targettiltangle;

};

privatefunctionm_up_h(e:MouseEvent):void

{

mouseDown=false;

};

}

}