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616 Stars 45 Forks GNU General Public License v3.0 2.0K Commits 23 Opened issues


A cross-platform implementation of various reaction-diffusion systems.

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Ready is a program for exploring continuous and discrete cellular automata, including reaction-diffusion systems, on grids and arbitrary meshes. OpenCL is used as the computation engine, to take advantage of the many-core architectures on graphics cards and modern CPUs. OpenCL also allows rules to be written in a text format and compiled on the fly. Ready supports a compact XML-based file format so that images and rules can be shared easily.

Ready supports 1D, 2D and 3D data, as well as polygonal and polyhedral meshes.

Download Ready 0.11 here:

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Linux: build instructions in BUILD.txt (please ask if you want binaries)

Changes, To-do list, Credits

Build status on the main branch:     Windows   macOS   Ubuntu

For questions, join our mailing list. Or you can email [email protected].


Press coverage: * New Scientist, August 2012: "First gliders navigate ever-changing Penrose universe"


Please cite Ready as:

Tim Hutton, Robert Munafo, Andrew Trevorrow, Tom Rokicki, Dan Wills.
"Ready, a cross-platform implementation of various reaction-diffusion systems."

Blog coverage: * The Christev Creative, April 2015: "Negative Worms in Reaction Diffusion" * Tim's blog, December 2012: "Ready 0.5" * GPU Science, September 2012: "Reaction-Diffusion by the Gray-Scott Model with OpenCL" * Complex Projective 4-Space, August 2012: "Are you Ready?" * Mikael Hvidtfeldt Christensen, August 2012: "Reaction-Diffusion Systems" * Hacker News, July 2012: "First glider discovered in a cellular automata on an aperiodic tiling" *, July 2012: "Ready: reaction-diffusion simulator" [2] * Tim's blog, September 2010: "reaction-diffusion"

Other packages: * TexRD (closed source) * Visions of Chaos (closed source) * CAPOW

Wanted rules: (help needed) * L.Decker 2003, derived from Maginu's (from TexRD) * L.Decker 2002, derived from Ginzburg-Landau (from TexRD) * L.Decker 1998, derived from Brusselator (from TexRD)


Full playlist here:

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