Flash三维粒子光线变化3
[code lang="as3"]package{
import __AS3__.vec.Vector;
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.PixelSnapping;
import flash.display.Sprite;
import flash.display.StageAlign;
import flash.display.StageScaleMode;
import flash.events.Event;
import flash.filters.BlurFilter;
import flash.geom.Matrix3D;
import flash.geom.PerspectiveProjection;
import flash.geom.Point;
import flash.geom.Rectangle;
import flash.utils.getTimer;
import net.everyinch.geom.Particle;
[SWF(width="800",height="600",frameRate="32",backgroundColor="0x000000")]
public class ParticleLight3 extends Sprite{
private const PI2:Number = Math.PI*2;
private var bmpd:BitmapData = new BitmapData(800,600,false,0);
private var buffer:Vector. = new Vector.(800*600,true);
private var focalLength:Number;
private var matrix:Matrix3D = new Matrix3D();
private var particle:Particle = new Particle();
private var phi:Number = -Math.PI/4;
private var theta:Number = Math.PI*3/2;
public function ParticleLight3(){
init();
createParticles();
addEventListener(Event.ENTER_FRAME,onEnterframe);
}
private function init():void{
stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.frameRate = 32;
//stage.quality = StageQuality.LOW;
stage.fullScreenSourceRect = new Rectangle(0,0,550,400);
var perspectiveProjection:PerspectiveProjection = new PerspectiveProjection();
perspectiveProjection.fieldOfView = 60;
perspectiveProjection.projectionCenter = new Point(400,300);
focalLength = perspectiveProjection.focalLength;
addChild(new Bitmap(bmpd,PixelSnapping.NEVER,false));
}
private function createParticles():void{
var radius1:Number;
var radius2:Number;
var s:Number;
var t:Number;
var sMin:Number = -Math.PI;
var tMin:Number = -Math.PI;
var sMax:Number = Math.PI;
var tMax:Number = Math.PI;
var numS:int = 24;
var numT:int = 290;
var sInc:Number = (sMax - sMin)/numS;// 0.02094395
var tInc:Number = (tMax - tMin)/numT;// 0.01570796
var p:Particle = particle;
for(var j:int=0;j