away3d4.0 基础demo一则

学3d其实是一件简单的事情，通过一个星期的学习，我了解了下面的几个概念后，就可以上手做东西了，东西很简单，使用away3d做的。但是麻雀虽小五脏俱全。给大家展示一下。

1.视口
2.相机
3.基础模型：立方体，球，圆锥
4.光照：
5.材质：

package
{
    import away3d.containers.ObjectContainer3D;
    import away3d.containers.View3D;
    import away3d.lights.DirectionalLight;
    import away3d.lights.PointLight;
    import away3d.materials.BitmapMaterial;
    import away3d.materials.ColorMaterial;
    import away3d.materials.DefaultMaterialBase;
    import away3d.materials.SegmentMaterial;
    import away3d.primitives.Cube;
    
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.geom.Vector3D;
    
    [SWF(width='500',height='500',frameRate="60")]
    public class Main extends Sprite
    {
        private var view:View3D = new View3D();
        private var cube:Cube;
        [Embed(source='embeds/crossColor.jpg')]
        private var IImage:Class;
        
        public function Main()
        {
            this.addEventListener(Event.ADDED_TO_STAGE,init);
        }
        
        private function init(event:Event):void
        {
            this.removeEventListener(Event.ADDED_TO_STAGE,init);
            
            this.stage.scaleMode = 'noScale';
            this.stage.align = 'top_left';
            
            view.width = 300;
            view.height = 300;
            view.x = 100;
            view.y = 100;
            view.backgroundColor = 0xcccccc;
            this.addChild(view);
            
            var light:DirectionalLight = new DirectionalLight();
            light.x = -1000;
            light.y = 1000;
            light.z = -1000;
            var material:BitmapMaterial = new BitmapMaterial(new IImage().bitmapData);
            material.lights = [light];
            
            cube = new Cube(material,200,200,200);
            view.scene.addChild(cube);
            view.scene.addChild(light);
            
            this.addEventListener(Event.ENTER_FRAME, _handleEnterFrame);
        }
        
        private function _handleEnterFrame(ev : Event) : void
        {
            cube.rotationX += 0.5;
            cube.rotationY += 0.5;
            cube.rotationZ += 0.5;
            view.render();
        }
    }
}