第三課程：如何使用攝影機(jī)？通過(guò)攝影機(jī)移動(dòng)來(lái)使攝影的對(duì)象產(chǎn)生變化，這樣會(huì)使動(dòng)畫(huà)變得容易。因?yàn)槟悴恍枰淖冇^察對(duì)象的的屬性，只是改變攝影機(jī)的變化

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package?

{

????import?flash.display.Sprite;

????import?flash.events.*;

????import?sandy.core.Scene3D;

????import?sandy.core.data.*;

????import?sandy.core.scenegraph.*;

????import?sandy.materials.*;

????import?sandy.materials.attributes.*;

????import?sandy.primitive.*;

????import?sandy.parser.*;

????import?flash.ui.Keyboard;

????public?class?My3D?extends?Sprite

????{

????????private?var?scene:Scene3D;

????????private?var?camera:Camera3D;

????????private?var?pot:Shape3D;

????????public?function?My3D()

????????{

????????????var?parser:IParser?=?Parser.create("asset/teieraASE.ASE",Parser.ASE?);//導(dǎo)入ase格式，讓它在flash里面重寫(xiě)繪畫(huà)

????????????parser.addEventListener(?ParserEvent.FAIL,?onError?);//模型導(dǎo)入失敗監(jiān)聽(tīng)

????????????parser.addEventListener(?ParserEvent.INIT,?createScene?);//初始化監(jiān)聽(tīng)事件

????????????stage.addEventListener(KeyboardEvent.KEY_DOWN,?keyPressed);

????????????parser.parse();//加載文件

????????}

????????private?function?onError(?pEvt:ParserEvent?):void

????????{

????????????trace("加載文件錯(cuò)誤");

????????}

????????private?function?createScene(p_eEvent:ParserEvent?):void

????????{

????????????camera?=?new?Camera3D(?500,?300?);//建立攝影機(jī)

????????????camera.y?=?30;

????????????camera.z?=?-200;

????????????var?g:Group?=?Group(?p_eEvent.group);

????????????pot?=?g.children[0]?as?Shape3D;//將模型轉(zhuǎn)為shape3d?類型

????????????pot.x?=?0;

????????????var?materialAttr:MaterialAttributes?=?new?MaterialAttributes(new?LightAttributes(?true,?0.2?)?);

????????????var?material:Material?=?new?ColorMaterial(?0xE0F87E,?0.9,?materialAttr);//添加顏色材質(zhì)和和光線

????????????material.lightingEnable?=?true;//開(kāi)啟光線

????????????var?app:Appearance?=?new?Appearance(?material);//創(chuàng)建一個(gè)物體表面

????????????pot.appearance?=?app;

????????????scene?=?new?Scene3D(?"scene",?this,?camera,?g?);

????????????addEventListener(?Event.ENTER_FRAME,?enterFrameHandler?);

????????}

????????private?function?enterFrameHandler(?event?:?Event?):void

????????{

????????????//pot.pan?+=3;

????????????scene.render();

????????}

????????private?function?keyPressed(event:KeyboardEvent):void

????????{

????????????switch?(event.keyCode)

????????????{

????????????????case?Keyboard.UP?:

????????????????????camera.tilt?+=2;//上移動(dòng)

????????????????????break;

????????????????case?Keyboard.DOWN?:

????????????????????camera.tilt?-=2;//下移動(dòng)

????????????????????break;

????????????????case?Keyboard.RIGHT?:

????????????????????camera.pan?-=2;//左移動(dòng)

????????????????????break;

????????????????case?Keyboard.LEFT?:

????????????????????camera.pan?+=2;//右移動(dòng)

????????????????????break;

????????????????case?Keyboard.CONTROL?:

????????????????????camera.roll?+=2;//旋轉(zhuǎn)

????????????????????break;

????????????????case?Keyboard.PAGE_DOWN?:

????????????????????camera.z?-=5;//向后移動(dòng)

????????????????????break;

????????????????case?Keyboard.PAGE_UP?://后移動(dòng)

????????????????????camera.z?+=5;

????????????????????break;

????????????}

????????}

????}

}

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通過(guò)鍵盤控制，使攝影機(jī)可以上下左右，前后旋轉(zhuǎn)推進(jìn)。

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轉(zhuǎn)載于:https://www.cnblogs.com/guoyiqi/archive/2008/10/11/2069484.html

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