Vortex.A - generative art for iPad / iPhone / iPod


Vortex.A - touch-interactive generative art. I am experimenting with fluid dynamics: how liquids and gases behave - a classically difficult problem in physics/maths. Most agree that fluid dynamics is described by the Navier-Stokes differential equations. There is no known all-case solution for the equations, but there are solutions for specific cases and approximative methods to find numerical solutions.

I'm experimenting with my own approach and it is making some pretty promising animations. This app visualizes the flow by emitting particles where you touch the screen (multi-touch works) and the fluid itself is also affected by touch. The lines are so called "pathlines" that trace the particles' paths over time.

I'm polishing the technology and hoping to bring it to VFX/motion graphics artists as a tool for fluid dynamics animations in the future.

The price is 99 cents and it's available in AppStore.

Check out's article, contains video! Or proceed to view video on Vimeo. Or, if you have flash, check out the video below (note that this video is from iPhone, on iPad it looks different)


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Reader Comments (10)

Insta-buy! Thanks Peder!

June 24, 2010 | Unregistered CommenterKert Gartner

Thank you Kert! // Peder

June 24, 2010 | Registered CommenterPeder Norrby

Blogged at

June 28, 2010 | Unregistered CommenterTim

Awesome Tim, I really appreciate it. Love your site btw.

Peder Norrby / Trapcode

June 29, 2010 | Registered CommenterPeder Norrby

Great app!

July 5, 2010 | Unregistered CommenterJerome

Really nice app & great idea!

November 30, 2010 | Unregistered CommenterYza

Does the application support Video Out on the first iPad, not iPad2 ?

May 4, 2011 | Unregistered CommenterVideo Out

Its great! A nice touch. I like the simplicity, but I cant help thinking of a couple more tricks: color and influence from accelerometer. Im sure you thought of these and a bunch more but there it is anyway. Great app! thanks for making it.

May 19, 2011 | Unregistered Commenterjoel

Even though this is an old post, I wanted to let you know that I have been looking for a easy and good 2D / 2,5D liquid simulation for some time now without any luck. I can't wait to see this technic ported over to AE!
If you are interested in beta testers, we have an upcoming project where this might be used as a main tool. If so, just drop me an e-mail :)

January 18, 2013 | Unregistered CommenterFranck

Looks very cool,
When are you porting it to "Particular" ?

December 18, 2014 | Unregistered CommenterChris Biggs

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