Simple Flash 8 Motion Blur

Just blogging a small experiment with motion blur using the new BlurFilter in Flash 8. Click anywhere on the SWF to make the ball move with a blur on it. Flash 8 player required.

The actionscript for the above movie is as follows:

[as]ball.cacheAsBitmap = true;

var bl = new flash.filters.BlurFilter();

bl.quality = 3;

var dx:Number;

var dy:Number;

this.onMouseDown = function() {

dx = _root._xmouse;

dy = _root._ymouse;

ball.onEnterFrame = mover;

}

function mover() {

this._x += (dx-this._x)/3;

this._y += (dy-this._y)/3;

bl.blurX = Math.sqrt(((dx-this._x)*(dx-this._x))+((dy-this._y)*(dy-this._y)))/5;

bl.blurY = bl.blurX;

this.filters = [bl];

if(this._x == dx) delete this.onEnterFrame;

}[/as]

Let me know if I could be doing something better