as 火焰效果

以下是关键原码和原始文件，感兴趣的朋友可以看看：Fire_ok.as：



/*

没啥好说的，拿去用吧：）

*/

class Fire_ok extends MovieClip

{

var fireBmp, prevBmp, tempBmp, greyBmp, mtx, pnt, blurF, greyscaleCMF, fireCMF, dispMapF, webcam, fireBmpHolder, createEmptyMovieClip;

var activityLevel_pb, wcGet ;

function Fire_ok ()

{

super ();

fireBmp = new flash.display.BitmapData (400, 400, false, 0);

prevBmp = fireBmp.clone ();

tempBmp = fireBmp.clone ();

greyBmp = new flash.display.BitmapData (400, 400, false, 16743424);

mtx = new flash.geom.Matrix ();

pnt = new flash.geom.Point ();

blurF = new flash.filters.BlurFilter (7, 7, 1);

greyscaleCMF = new flash.filters.ColorMatrixFilter ([0.73, 0.83, 0.93, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0]);

fireCMF = new flash.filters.ColorMatrixFilter ([0.8, 0.05, 0, 0, 0, 0, 0.65, 0, 0, 0, 0, 0, 0.5, 0, 0, 0, 0, 1, 0]);

dispMapF = new flash.filters.DisplacementMapFilter (tempBmp, pnt, 1, 2, 10, - 35, "clamp");

/////////////////////////////////////////////////////

}

function configUI ()

{

fireBmpHolder = this.createEmptyMovieClip ("fireBmpHolder", 1);

fireBmpHolder.attachBitmap (fireBmp, 1, "always", false);

fireBmpHolder.blendMode = "add";

}

function onEnterFrame ()

{

tempBmp.copyPixels (prevBmp, prevBmp.rectangle, pnt);

prevBmp.draw (webcam);

if (tempBmp.getPixel (1, 1) < 2)

{

return (undefined);

}

tempBmp.draw (prevBmp, mtx, null, "difference");



tempBmp.applyFilter (tempBmp, tempBmp.rectangle, pnt, greyscaleCMF);

tempBmp.threshold (tempBmp, tempBmp.rectangle, pnt, ">", 1638400, 4289379174, 16711680, false);

tempBmp.applyFilter (tempBmp, tempBmp.rectangle, pnt, blurF);

fireBmp.draw (tempBmp, mtx, null, "add");



tempBmp.perlinNoise (13, 10, 1, random (100) , false, true, 3, false);

tempBmp.draw (greyBmp, mtx, null, "darken");



fireBmp.applyFilter (fireBmp, fireBmp.rectangle, pnt, dispMapF);

fireBmp.applyFilter (fireBmp, fireBmp.rectangle, pnt, fireCMF);

}

static var CLASS_REF = Fire_ok;

static var LINKAGE_ID = "Fire_ok";

}







原文件下载

http://www.webjx.com/upfiles/20070823/20070823230005_webjxcom.rar