NHacker Next
login
▲Algorithms for making interesting organic simulationsbleuje.com
126 points by todsacerdoti 3 days ago | 10 comments
Loading comments...
FacelessJim 4 hours ago [-]
I did something very similar some years ago while learning metal [1], I recall them being called "boids". I spent days just playing with the various parameters, luckily my implementation was not as pretty as the one offered in the OP, otherwise I would have lost weeks instead.

[1] https://github.com/ghyatzo/metalplay?tab=readme-ov-file

_0ffh 4 hours ago [-]
The original boids, or "bird-oid objects", was an algorithm and program to simulate emergent flocking behaviour from simple rules in birds. It has spawned a kind of genre, or at least a multitude of copies/derivatives, often collectively referred to as "boids".
stirfish 2 hours ago [-]
I've been vibe coding boids implementations because my toddler likes to look at them. Here's one where the attributes of the boids (alignment, etc) are hooked up to frequency generators like a sequencer: https://neuroky.me/boidsine.html?boidCount=1700&hue=sine3&se...

I can move them to GitHub or something, but they are currently hosted in my pantry. Please be gentle :)

Ono-Sendai 4 hours ago [-]
Very nice. It seems some of the algorithms are (inadvertently?) solving the shallow water equations. Looks similar to the results I was getting working on https://github.com/Ono-Sendai/terraingen
smusamashah 2 days ago [-]
The 36 Points linked in the article is very fascinating https://www.sagejenson.com/36points/#22_transmission_tower

Press numbers and letters on this page to switch to one of the variations.

ethan_smith 9 hours ago [-]
The 36 Points is part of Sage Jenson's visualization of Jeff Jones' "Artificial Nature" research, which pioneered many of these reaction-diffusion and agent-based models for simulating emergent biological phenomena.
johannes_ne 9 hours ago [-]
The same author has a great series of tutorials for making looping animations, where the animation appears longer than the length of the loop. It also introduces Perlin noise, which I've found quite useful in a few unrelated projects.

https://bleuje.com/tutorials/

Here is an example of a 10-minute movie in a 6.3-second looping GIF. https://bsky.app/profile/johsenevoldsen.bsky.social/post/3lm...

alhirzel 3 days ago [-]
Reminds me of Electric Sheep

https://electricsheep.org/

jasonjmcghee 2 days ago [-]
Absolutely beautiful visualizations.

These are way beyond anything I've done, but you can actually do these with compute shaders in real time and they look quite good.

I played with using Godot to do this kind of slime simulation (inspired by Sebastian Lague) when they released compute shaders: https://github.com/jasonjmcghee/compute-shaders?tab=readme-o....

Edit:

Here's a good webgpu demo (not by me) of this kind of simulation https://shridhar2602.github.io/WebGPU-Slime-Simulation/

romulobribeiro 11 hours ago [-]
This is something that Daniel Shiffman from coding train would consider for the coding challenges