Creating Static TV Noise in Flash using AS3

Creating Fast and Smooth Static TV Noise in Flash using AS3 was a simpler task than I expected it. First attempt was using for loops to set every pixel and was not very fast. A Simple browse through the API docs for BitmapData class gave me the 'noise' method

bgdata.noise(Math.random() * 1000, 0, 255, 7, true);

did the trick :)

Complete code below

package {

import flash.display.Sprite;

import flash.events.Event;

import flash.display.Graphics;

import flash.display.Bitmap;

import flash.display.BitmapData;

import flash.geom.Point;

public class StaticNoise extends Sprite {

const ww = 480;

const hh = 272;

var bgdata:BitmapData = new BitmapData(ww, hh, false, 0xffffff);

var bg:Bitmap = new Bitmap(bgdata);

var zeroPt:Point = new Point(0,0);

public function StaticNoise() {

addChild(bg);

addEventListener(Event.ENTER_FRAME, drawBaby);

}

function drawBaby(e:Event) {

bgdata.lock();

bgdata.noise(Math.random() * 1000, 0, 255, 7, true);

bgdata.unlock();

}

}

}

You can modify,use this code where ever you want, without giving credits. But please just let me know in the comments if it helped you.