papervision3d的第一个例子

    费了很大的力气才从googlecode上将pv3d 2.0给down下来。由于也是刚学pv3d，也看不出和以前的版本有什么改动，就从pv3d 2.0开始学吧。之前pv3d的程序主要的顺序是：创建容器-->创建舞台-->创建摄像头-->创建3D对象-->然后显示,现在好了，封装了一个类BasicView，里面直接将舞台，摄像头创建好了，看它的构造函数

public function BasicView(viewportWidth:Number=640, viewportHeight:Number = 320, scaleToStage:Boolean=true, interactive:Boolean = false, cameraType:String = "CAMERA3D")
{
		super();
			
		scene = new Scene3D();
		viewport = new Viewport3D(viewportWidth, viewportHeight, scaleToStage, interactive);
		addChild(viewport);
		renderer = new BasicRenderEngine();
			
		switch(cameraType){
			case Camera3D.TYPE:
				_camera = new Camera3D();
			break;
			case FreeCamera3D.TYPE:
				_camera = new FreeCamera3D();
			break;
			case FrustumCamera3D.TYPE:
				_camera = new FrustumCamera3D(viewport);
			break;
			default:
				_camera = new Camera3D();
			break;
		}
}

   可见，只要将camera的类型传进去，BasicView便会创建相应类型的摄像头。还有个ViewPort的东东，不知道怎么理解，先不管，用了再说。

　先做个立方的例子，六面分别是不同的图片，再让立方旋转，就这么简单。

 

代码直接也很简单:

package {
	
     import flash.display.Bitmap;
     import flash.display.Sprite;
     import flash.events.Event;
     
     import org.papervision3d.materials.BitmapMaterial;
     import org.papervision3d.materials.utils.MaterialsList;
     import org.papervision3d.objects.primitives.Cube;
     import org.papervision3d.view.BasicView;    
       
     [SWF(width="250", height="250", backgroundColor="0xFFFFFF",frameRate='40')]  
     public class Main extends Sprite   
     {  
         [Embed(source="pic1.jpg")]  
         public var Pic1:Class;      
              
         [Embed(source="pic2.jpg")]  
         public var Pic2:Class;  
         
         [Embed(source="pic3.jpg")]  
         public var Pic3:Class; 
         
         [Embed(source="pic4.jpg")]  
         public var Pic4:Class; 
         
         [Embed(source="pic5.jpg")]  
         public var Pic5:Class; 
         
         [Embed(source="pic6.jpg")]  
         public var Pic6:Class; 
       
       	 private var basicView:BasicView;
       	 private var cube:Cube;
       	 private var materialList:MaterialsList;       	 
  
         public function Main()  
         {  
             init();
         }  
           
         private function init():void  
         {  
           
           basicView = new BasicView(250,250,false,true);
           addChild( basicView);
           basicView.camera.zoom = 10;
           
           materialList = new MaterialsList();
           
           var pic1Bitmap:Bitmap = new Pic1() as Bitmap;
           var pic1Material:BitmapMaterial = new BitmapMaterial( pic1Bitmap.bitmapData ,true );
       	   pic1Material.interactive = true;
       	   materialList.addMaterial( pic1Material,"top" );
       	   
       	   var pic2Bitmap:Bitmap = new Pic2() as Bitmap;
           var pic2Material:BitmapMaterial = new BitmapMaterial( pic2Bitmap.bitmapData ,true );
       	   pic2Material.interactive = true;
       	   materialList.addMaterial( pic2Material,"bottom" );
       	   
       	   var pic3Bitmap:Bitmap = new Pic3() as Bitmap;
           var pic3Material:BitmapMaterial = new BitmapMaterial( pic3Bitmap.bitmapData ,true );
       	   pic3Material.interactive = true;
       	   materialList.addMaterial( pic3Material,"left" );
       	   
       	   var pic4Bitmap:Bitmap = new Pic4() as Bitmap;
           var pic4Material:BitmapMaterial = new BitmapMaterial( pic4Bitmap.bitmapData ,true );
       	   pic4Material.interactive = true;
       	   materialList.addMaterial( pic4Material ,"right");
       	   
       	   var pic5Bitmap:Bitmap = new Pic5() as Bitmap;
           var pic5Material:BitmapMaterial = new BitmapMaterial( pic5Bitmap.bitmapData ,true );
       	   pic5Material.interactive = true;
       	   materialList.addMaterial( pic5Material ,"front");
       	   
       	   var pic6Bitmap:Bitmap = new Pic6() as Bitmap;
           var pic6Material:BitmapMaterial = new BitmapMaterial( pic6Bitmap.bitmapData ,true );
       	   pic6Material.interactive = true;
       	   materialList.addMaterial( pic6Material ,"back");
       	   
       	   cube = new Cube (materialList , 140,140,140,2,2,2);
       	   basicView.scene.addChild(cube);
       	   
       	   addEventListener( Event.ENTER_FRAME , onEnterFrame);
       	 
         }  
         internal function onEnterFrame(event:Event):void{
         
         	cube.rotationX += 3;
         	cube.rotationY += 3;
         	basicView.singleRender();
         	
         }
           
     }  
}

 　可见程序的步骤还是一样的，只是帮我们做了一下封装，用起来更方便了.

评论

1 楼 qiyangyang09 2011-01-24  

_camera = new FreeCamera3D(); 
_camera = new FrustumCamera3D(viewport);  
请问我的是Papervision3D_2.1.932.swc怎么没有这两个类。
希望能吧代码和swc发到我的邮箱：[e-mail]
我刚开始学习还望指点。