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标题: Flash3D学习——Sandy学习笔记 [8] [打印本页]

作者: . 时间: 2012-8-23 11:38
标题: Flash3D学习——Sandy学习笔记 [8]

天啊，又有了一个新的概念了，光源
光源也是可以移动的，可以实现物体不同位置的反光效果。
先预习一下，setDirection

setDirection(x:Number, y:Number, z:Number):void

参数：

x:Number — 光源的X坐标

y:Number — 光源的Y坐标

Z:Number — 光源的Z坐标
为了使光的效果更明显，这里用球型（Sphere）。

使用键盘的上、下、左、右、Page UP、Page Down键来控制光源坐标。
代码：
package

{

import flash.display.Sprite;

import flash.events.*;

import flash.ui.*;

import flash.display.Bitmap;

import flash.display.BitmapData;

import flash.display.Loader;

import flash.net.URLRequest;

import flash.display.Stage;

import flash.display.StageAlign;

import flash.display.StageScaleMode;

import sandy.core.Scene3D;

import sandy.core.scenegraph.*;

import sandy.primitive.*;

import sandy.materials.*;

import sandy.materials.attributes.*;

import sandy.core.data.*;

/**

   * ...

   * @author ever5u

   */

public class fuxi extends Sprite

{

      private var scene:Scene3D;

      private var camera:Camera3D;

      private var lightX = 0;

      private var lightY = 0;

      private var lightZ = 10;

      public function fuxi() {

         //创建一个摄像机

         camera = new Camera3D(300, 300);

         camera.x = 100;

         camera.y = 100;

         camera.z = -300;

         camera.lookAt(0,0,0);

         //创建一个 Group

         var root:Group = createScene();

         //创建场景

         scene = new Scene3D( "scene", this, camera, root );

         scene.light.setDirection(lightX, lightY, lightZ);

         //创建实时侦听

         addEventListener( Event.ENTER_FRAME, enterFrameHandler );

         stage.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);

      }

      //这次用个球型

      var mySphere:Sphere = new Sphere( "theSphere", 80, 32, 24);

      public function createScene() {

         var g:Group = new Group();

         //复习一下为物体着色吧

         var materialAttr:MaterialAttributes = new MaterialAttributes(

            new LineAttributes( 0.5, 0x2111BB, 0.4 ),

            new LightAttributes( ***e, 0.1)

            );

         var material:Material = new ColorMaterial( 0xFFCC33, 1, materialAttr );

         material.lightingEnable = ***e;

         var app:Appearance = new Appearance( material );



         mySphere.appearance = app;



         g.addChild( mySphere );

         return g;

      }

      public function enterFrameHandler(_evt:Event) {

         mySphere.pan += 1;

         scene.render();

      }

      private function keyPressed(event:KeyboardEvent):void {

      switch(event.keyCode) {

         case Keyboard.PAGE_DOWN:

            scene.light.setPower(scene.light.getPower() - 5);

            break;

         case Keyboard.PAGE_UP:

            scene.light.setPower(scene.light.getPower() + 5);

            break;

         case Keyboard.UP:

            lightY+=10;

            scene.light.setDirection(lightX, lightY, lightZ);

            break;

         case Keyboard.DOWN:

            lightY-=10;

            scene.light.setDirection(lightX, lightY, lightZ);

            break;

         case Keyboard.RIGHT:

            lightX+=10;

            scene.light.setDirection(lightX, lightY, lightZ);

            break;

         case Keyboard.LEFT:

            lightX-=10;

            scene.light.setDirection(lightX, lightY, lightZ);

            break;

         }

      }

}

}
效果：

【出处：蓝色理想】

作者: 她。 时间: 2012-11-2 09:25

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