Anyone heard of Gray-Scott reaction-diffusion algorithm?

Replies to This Discussion

Permalink Reply by Michael Pryor on September 14, 2011 at 11:21am

The java simulation looks similar to what meta-balls are doing.

Permalink Reply by Eric Mims on September 14, 2011 at 11:31am

Not sure how to start in on this in GH, but the guy has the program available for free on his website, jasondorie.com so that can at least get you an image ready for vectorization.

Permalink Reply by David Rutten on September 14, 2011 at 11:40am

The MilkDrop plugin for Winamp has some amazing reaction-diffusion filters. They're sort of hard to find amongst the hundreds of presets, but they're well worth it (the filters were written mostly by Ryan Geiss, same author as Milkdrop).

 

MilkDrop runs on a pixel-grid (well, sort of) so it's a discrete algorithm, not a geometric one.

 

--

David Rutten

david@mcneel.com

Barcelona, Spain

Permalink Reply by Yoann Mescam (Systemiq) on September 14, 2011 at 11:46am

http://escholarship.org/uc/item/2jw5q3wt;jsessionid=6BCAF8CAC6C73CC...

led me to :

http://en.wikipedia.org/wiki/Gillespie_algorithm

then to :

http://www.mosaic.ethz.ch/Downloads/pdm

Might be doable.

Permalink Reply by Andrew Kudless on September 14, 2011 at 1:50pm

Here are a few similar projects by Nervous System using reaction-diffusion. 

 

http://n-e-r-v-o-u-s.com/shop/product.php?code=70&tag=housewares

 

http://n-e-r-v-o-u-s.com/shop/product.php?code=66&tag=housewares

 

http://n-e-r-v-o-u-s.com/shop/product.php?code=71&tag=housewares

Permalink Reply by Jason Dorie on September 16, 2011 at 12:26pm

Chck out http://toxiclibs.org/2010/02/simutils-grayscott/

The ToxicLibs in general have a lot of reference for this and a number of other computational methods. Their implementation is 2d, but it's possible to extend the algorithm to 3d, or you can map the 2d output to a 3d surface, which I believe is what the Nervous folks are doing.

Jason

Permalink Reply by kleerkoat on September 16, 2011 at 12:55pm

nice finds everyone!

 

thank you, hopefully I can take this and hack something together with my limited knowledge.  ;-)

ryan

Permalink Reply by Giacomo Bergonzoni on July 23, 2012 at 11:42am

Hi,

I'm interested in gray-scott reaction in grasshopper! Do you find something new?