Comments on: Burlington Ducky iPhone App

By: Heiko Behrens

Heiko Behrens — Tue, 08 Feb 2011 22:26:50 +0000

In general, it should work in a similar way. The particles have to be restricted by the complex shape instead of a simple rectangle. Second, the derived area (metaballs) should be masked with the shape to provide hard edges.

By: Imran

Imran — Tue, 08 Feb 2011 06:41:59 +0000

nice work dude. I have one question for you: Do you have any idea how to fill up an arbitrary shape of glass with liquid in iphone, like pouring drink into glass?

By: Heiko Behrens

Heiko Behrens — Sun, 28 Nov 2010 20:59:37 +0000

Hey Christian,

at the moment I am not planning to do a new version of the effect. The original client hasn’t ordered such an enhancement.

By: Christian

Christian — Sun, 28 Nov 2010 12:24:18 +0000

Heiko,
Excellent app!
Will there be an iPad version, too?

By: Heiko Behrens

Heiko Behrens — Tue, 11 May 2010 17:06:57 +0000

Thank you for the kudos, Matthew.

The MacDeveloper Magazine (German) will publish an article about the production of screencasts for the iPhone I wrote last week. Aroud the 27th I complement that text with a short blog post to provide links to the tools I wrote about. Hopefully, this will help you.

Please let me know which further details -apart from code- you need to understand the liquid effect.

By: Matthew

Matthew — Tue, 11 May 2010 05:23:40 +0000

Hi Heiko,

I’m impressed with the effect but understand that you can’t open source the app. I’m really interested to replicate a similar effect and would appreciate further details as far as you are comfortable to release.

I’m also interested in the screencast production. It looks really good!

Cheers

By: Heiko Behrens

Heiko Behrens — Fri, 09 Apr 2010 10:59:24 +0000

Hey Big Pig, I am planning a blog post and an article (German Magazine) about this. If you need further information quickly, let me know and I could give you a call.

By: Big Pig

Big Pig — Fri, 09 Apr 2010 08:51:27 +0000

Hey Heiko,

Could you possibly share how you captured teh video and how did you rotate the iPhone simulator so smoothly (I can only rotate it 90 degrees at a time…).

Thanks!

By: Heiko Behrens

Heiko Behrens — Wed, 07 Oct 2009 20:45:18 +0000

Tom, Mr-sk,

I’m afraid I cannot make this work open source. Feel free to ask questions on a conceptual level, though. I’ll be glad to give answers.

By: Mr-sk

Mr-sk — Sat, 03 Oct 2009 17:16:23 +0000

Nice writeup – any chance of open sourcing the application?

By: Tom Irving

Tom Irving — Fri, 02 Oct 2009 23:13:22 +0000

I meant making the app open source.
Thanks for the info as well though! Really great post.

Tom.

By: Heiko Behrens

Heiko Behrens — Fri, 02 Oct 2009 22:08:04 +0000

Thank you, Oliver.

Tom,
I am not sure what you are asking for. The water effect uses the idea of metaballs and a derivation of marching squares to convert particles that comply to some rules to a fluid area. One of these rules is gravity where the actual vector is given by the data of the accelerometer. In the mentioned paper Matthias Müller subsums gravity under “external forces”. Does this make sense?

By: Tom Irving

Tom Irving — Fri, 02 Oct 2009 15:52:47 +0000

I’m wondering if you’d be willing to share the source code for this app?
Out of personal interest I’ve been wondering how to create a liquid which reacts to the phones orientation.

I understand if not though.

Tom.

By: Oliver Reinhard

Oliver Reinhard — Fri, 02 Oct 2009 08:16:55 +0000

Hey Heiko
Thanks for this article. Good work (the duck as well as the blog). Keep it up!
I’ll try the Burlington Duck on my iPod touch tonight.
–
oliver