Looking for swirl effect

[flamedude]

Hi chaps,

I'm looking for any AS3 script that might help me create a dynamic swirling effect. I need to apply this effect to a dynamically populated movieclip and presumably it uses bitmapdata and flash filters to work....... Just can't get my head around it. Specifically I'm looking for something similar to this;

http://www.flash-filter.net/swirl-effect.phtml

Any help, examples, pointers would be really appreciated.

Thanks,

Steven.

[5TonsOfFlax]

If you want to code it yourself, look into either pixelbender or DisplacementMapFilter.

If you want one that someone's already done, look at http://je2050.joa-ebert.com/imageprocessing/

The license on that is GPLv2, so if you're planning to use it in a commercial project, think twice.

[flamedude]

Ah thanks for the info. I'll need to steer clear of the joa-ebert stuff unfortunately, even though it has the twirlMap thing which is exactly what I'm looking for.

Do you know is there is a way to animate a Displacement map? I'm looking for the twirl/swirl effect as an animation, not just a single frame distortion.

Thanks again.

[5TonsOfFlax]

Iterated incremental small swirl displacements should add up to a big displacement. You could just call the same filter a bunch of times.

Also, on the pixelbender front, there's this: http://www.adobe.com/cfusion/exchang...&extid=1536021

[flamedude]

Ah thanks a ton..... um.... 5tons. This look really promising. Don't fully understand the pixel bender stuff but I suppose I better learn something today rather than just get you to explain everything for me!

Your help is really appreciated!

[attunedesigns]

Yea, definitely just experiment with a DisplacementMapFilter, and see where that gets you.

http://www.emanueleferonato.com/2007...nt-map-filter/

http://www.webwasp.co.uk/tutorials/221/index.php