[ActionScript 3.0] Away3D 天空盒(skybox)例子

  1 /*
  2 
  3 SkyBox example in Away3d
  4 
  5 Demonstrates:
  6 
  7 How to use a CubeTexture to create a SkyBox object.
  8 How to apply a CubeTexture to a material as an environment map.
  9 
 10 Code by Rob Bateman
 11 rob@infiniteturtles.co.uk
 12 http://www.infiniteturtles.co.uk
 13 
 14 This code is distributed under the MIT License
 15 
 16 Copyright (c) The Away Foundation http://www.theawayfoundation.org
 17 
 18 Permission is hereby granted, free of charge, to any person obtaining a copy
 19 of this software and associated documentation files (the “Software”), to deal
 20 in the Software without restriction, including without limitation the rights
 21 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 22 copies of the Software, and to permit persons to whom the Software is
 23 furnished to do so, subject to the following conditions:
 24 
 25 The above copyright notice and this permission notice shall be included in
 26 all copies or substantial portions of the Software.
 27 
 28 THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 29 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 30 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 31 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 32 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 33 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 34 THE SOFTWARE.
 35 
 36 */
 37 
 38 package
 39 {
 40     import away3d.cameras.lenses.*;
 41     import away3d.containers.*;
 42     import away3d.entities.*;
 43     import away3d.materials.*;
 44     import away3d.materials.methods.*;
 45     import away3d.primitives.*;
 46     import away3d.textures.*;
 47     import away3d.utils.*;
 48     
 49     import flash.display.*;
 50     import flash.events.*;
 51     import flash.geom.Vector3D;
 52 
 53     [SWF(backgroundColor="#000000", frameRate="60", quality="LOW")]
 54     
 55     public class Basic_SkyBox extends Sprite
 56     {
 57         // Environment map.
 58         [Embed(source="../embeds/skybox/snow_positive_x.jpg")]
 59         private var EnvPosX:Class;
 60         [Embed(source="../embeds/skybox/snow_positive_y.jpg")]
 61         private var EnvPosY:Class;
 62         [Embed(source="../embeds/skybox/snow_positive_z.jpg")]
 63         private var EnvPosZ:Class;
 64         [Embed(source="../embeds/skybox/snow_negative_x.jpg")]
 65         private var EnvNegX:Class;
 66         [Embed(source="../embeds/skybox/snow_negative_y.jpg")]
 67         private var EnvNegY:Class;
 68         [Embed(source="../embeds/skybox/snow_negative_z.jpg")]
 69         private var EnvNegZ:Class;
 70         
 71         //engine variables
 72         private var _view:View3D;
 73         
 74         //scene objects
 75         private var _skyBox:SkyBox; 
 76         private var _torus:Mesh;
 77         
 78         /**
 79          * Constructor
 80          */
 81         public function Basic_SkyBox()
 82         {
 83             stage.scaleMode = StageScaleMode.NO_SCALE;
 84             stage.align = StageAlign.TOP_LEFT;
 85             
 86             //setup the view
 87             _view = new View3D();
 88             addChild(_view);
 89             
 90             //setup the camera
 91             _view.camera.z = -600;
 92             _view.camera.y = 0;
 93             _view.camera.lookAt(new Vector3D());
 94             _view.camera.lens = new PerspectiveLens(90);
 95             
 96             //setup the cube texture
 97             var cubeTexture:BitmapCubeTexture = new BitmapCubeTexture(Cast.bitmapData(EnvPosX), Cast.bitmapData(EnvNegX), Cast.bitmapData(EnvPosY), Cast.bitmapData(EnvNegY), Cast.bitmapData(EnvPosZ), Cast.bitmapData(EnvNegZ));
 98             
 99             //setup the environment map material
100             var material:ColorMaterial = new ColorMaterial(0xFFFFFF, 1);
101             material.specular = 0.5;
102             material.ambient = 0.25;
103             material.ambientColor = 0x111199;
104             material.ambient = 1;
105             material.addMethod(new EnvMapMethod(cubeTexture, 1));
106             
107             //setup the scene
108             _torus = new Mesh(new TorusGeometry(150, 60, 40, 20), material);
109             _view.scene.addChild(_torus);
110             
111             _skyBox = new SkyBox(cubeTexture);
112             _view.scene.addChild(_skyBox);
113             
114             //setup the render loop
115             addEventListener(Event.ENTER_FRAME, _onEnterFrame);
116             stage.addEventListener(Event.RESIZE, onResize);
117             onResize();
118         }
119         
120         /**
121          * render loop
122          */
123         private function _onEnterFrame(e:Event):void
124         {
125             _torus.rotationX += 2;
126             _torus.rotationY += 1;
127             
128             _view.camera.position = new Vector3D();
129             _view.camera.rotationY += 0.5*(stage.mouseX-stage.stageWidth/2)/800;
130             _view.camera.moveBackward(600);
131             
132             _view.render();
133         }
134         
135         /**
136          * stage listener for resize events
137          */
138         private function onResize(event:Event = null):void
139         {
140             _view.width = stage.stageWidth;
141             _view.height = stage.stageHeight;
142         }
143     }
144 }

 

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posted on 2015-11-27 10:51  晏过留痕  阅读(291)  评论(0编辑  收藏  举报