[F8] Dynamic Filter use

programming flash
1

Hey all,

So i have developed and am refining some “mouse follow” code. The code works great. What doesn’t work is my ability to add a blur effect. The idea is that the faster the mc is moving, the more blurry it is made. Sounds simple… heh heh

I have started by simply applying a static blur value in the code… like such:

	function mouseFollow(centerx:Object, centery:Object, inertia:Number, k:Number) {
		//trace ("we are calling the mouse follow function");
		Dx = -this_mc._x+centerx;
		Dy = -this_mc._y+centery;
		Px = Px*inertia+Dx*k;
		Py = Py*inertia+Dy*k;
		this_mc._x += Px;
		this_mc._y += Py;
		trace(Math.round(Dx/10));
		//
		// blur mechanism
		//
		var blurFilter = new flash.filters.BlurFilter();
		var filterArray:Array = this_mc.filters;
		filterArray.push(blurFilter)
		//
		filterArray[0].blurX = 2;
		this_mc.filters = filterArray;
	}

the mc is blurred just fine. But my CPU is PISSED at me. Suggestions for how to best optimize this code? perhaps there is a less brute force way of doing this? Or is the “filter” aspect simply a CPU pig?