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Algorithms for making interesting organic simulations

https://bleuje.com/physarum-explanation/
124•todsacerdoti•2d ago

Comments

alhirzel•2d ago
Reminds me of Electric Sheep

https://electricsheep.org/

smusamashah•2d 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•7h 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.
jasonjmcghee•1d 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•10h ago
This is something that Daniel Shiffman from coding train would consider for the coding challenges
johannes_ne•7h 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...

FacelessJim•2h 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•2h 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•52m 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•2h 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

Thunderbird: Fluent Windows 11 Design

https://github.com/Deathbyteacup/fluentbird
162•skipnup•3d ago•81 comments

Linux Reaches 5% Desktop Market Share in USA

https://ostechnix.com/linux-reaches-5-desktop-market-share-in-usa/
701•marcodiego•4h ago•378 comments

cppyy: Automatic Python-C++ Bindings

https://cppyy.readthedocs.io/en/latest/
45•gjvc•2h ago•10 comments

Show HN: Improving RAG with chess Elo scores

https://www.zeroentropy.dev/blog/improving-rag-with-elo-scores
14•ghita_•1h ago•1 comments

AWS open-sourced Postgres active-active replication extension

https://github.com/aws/pgactive
97•ForHackernews•6h ago•24 comments

Cloudflare 1.1.1.1 Incident on July 14, 2025

https://blog.cloudflare.com/cloudflare-1-1-1-1-incident-on-july-14-2025/
383•nomaxx117•11h ago•237 comments

Shipping WebGPU on Windows in Firefox 141

https://mozillagfx.wordpress.com/2025/07/15/shipping-webgpu-on-windows-in-firefox-141/
221•Bogdanp•8h ago•70 comments

Pascal's Scams (2012)

http://unenumerated.blogspot.com/2012/07/pascals-scams.html
37•walterbell•3d ago•25 comments

What's Happening to Reading?

https://www.newyorker.com/culture/open-questions/whats-happening-to-reading
13•Kaibeezy•3d ago•8 comments

Tilck: A Tiny Linux-Compatible Kernel

https://github.com/vvaltchev/tilck
214•chubot•11h ago•38 comments

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https://github.com/jlumbroso/passage-of-time-mcp
4•lumbroso•35m ago•1 comments

I'm Switching to Python and Actually Liking It

https://www.cesarsotovalero.net/blog/i-am-switching-to-python-and-actually-liking-it.html
94•cesarsotovalero•7h ago•131 comments

Ukrainian hackers destroyed the IT infrastructure of Russian drone manufacturer

https://prm.ua/en/ukrainian-hackers-destroyed-the-it-infrastructure-of-a-russian-drone-manufacturer-what-is-known/
376•doener•7h ago•245 comments

Chain of thought monitorability: A new and fragile opportunity for AI safety

https://arxiv.org/abs/2507.11473
4•mfiguiere•50m ago•0 comments

MARS.EXE → COM (2021)

https://chaos.if.uj.edu.pl/~wojtek/MARS.COM/
86•reconnecting•4d ago•28 comments

GPUHammer: Rowhammer attacks on GPU memories are practical

https://gpuhammer.com/
219•jonbaer•15h ago•74 comments

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https://dataramen.xyz/
27•oleksandr_dem•3h ago•26 comments

Denver's Deepest Dinosaur

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6•gmays•1h ago•2 comments

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5•dangoodmanUT•2d ago•0 comments

Atopile – Design circuit boards with code

https://atopile.io/atopile/introduction
19•poly2it•3d ago•4 comments

LLM Daydreaming

https://gwern.net/ai-daydreaming
129•nanfinitum•13h ago•81 comments

Six Years of Gemini

https://geminiprotocol.net/news/2025_06_20.gmi
174•brson•12h ago•93 comments

Show HN: Shoggoth Mini – A soft tentacle robot powered by GPT-4o and RL

https://www.matthieulc.com/posts/shoggoth-mini
535•cataPhil•23h ago•101 comments

Reflections on OpenAI

https://calv.info/openai-reflections
626•calvinfo•22h ago•337 comments

NIST ion clock sets new record for most accurate clock

https://www.nist.gov/news-events/news/2025/07/nist-ion-clock-sets-new-record-most-accurate-clock-world
328•voxadam•23h ago•111 comments

Where's Firefox going next?

https://connect.mozilla.org/t5/discussions/where-s-firefox-going-next-you-tell-us/m-p/100698#M39094
282•ReadCarlBarks•18h ago•428 comments

Documenting what you're willing to support (and not)

https://rachelbythebay.com/w/2025/07/07/support/
66•zdw•3d ago•24 comments

Pixel Piranhas

https://rybakov.com/blog/pixel_piranhas/
31•spython•3d ago•11 comments

To be a better programmer, write little proofs in your head

https://the-nerve-blog.ghost.io/to-be-a-better-programmer-write-little-proofs-in-your-head/
412•mprast•22h ago•152 comments

Hijacking Trust? Bitvise Under Fire for Controlling Domain of FOSS Project PuTTY

https://blog.pupred.com/blog/puttyvsbitvise/
58•ColinWright•9h ago•54 comments