Reaction Diffusion Python Script

[savoura3]

Hello!

There is a really nice tutorial in processing about reaction diffusion and I am trying to replicate it in grasshopper using python.

The original script can be found here on processing or javascript.

CodingTrain/website

I have reached a point where I cannot identify what is going wrong with the code. I am not getting the expected results. I have been through every line multiple times but I am not able to find whats wrong.

Any help would be appreciated!

RD-1.gh (13.3 KB) RD-1.gh (13.3 KB)

[laurent_delrieu]

You put a multiplication instead of addtion

Good exercice but super long.
You could also look here

2D Reaction Diffusion to 3D

reaction diffusion on triangular mesh

Or a very fast

Fast Gray-Scott reaction-diffusion C# component using Alea for GPU computation

I wrote a component that computes reaction-diffusion like this, Reaction-Diffusion Tutorial, on a mesh. It builds on Vicente Soler and Laurent Delrieu’s work here reaction diffusion on triangular mesh - Grasshopper . Thanks guys! I extended the inputs to take either a single value, or one for each mesh vertex, so f, k etc. can vary over the mesh just as the dir input for flow direction already does. I used Alea 3.0.4, http://www.aleagpu.com/release/3_0_4/doc/, to do the computation on the …

[savoura3]

Haha I cant believe it! I checked like 3 times and I didn’t spot it! Thank you so much for pointing it out and for all the extra information you provided!

[laurent_delrieu]

The most simple errors are sometimes the harder to find. Don’t whorry I know what is it. I spend some hours traking a bug right this morning !! I found it bt it was hard.