Ball Pit

https://codepen.io/mrdoob_/full/NPRwLZd

64•memalign•2h ago

Comments

newobj•1h ago

path tracer?

newobj•1h ago

nevermind i see the ssgi/traa code. looks great!

simlevesque•1h ago

Beware: this might totally freeze your computer like it did for me.

ninju•1h ago

definitely needs a lot of computing power

amelius•1h ago

Works fine on my phone, Firefox+GrapheneOS.

ivanjermakov•33m ago

WebGPU moment (have same issue on Firefox/Linux).

daemonologist•25m ago

Had to break out Chromium for this one - Firefox+Linux does not like webgpu (my whole DE started flickering).

mentalgear•9m ago

I was amazed that it run smoothly on Firefox mac without WebGPU.

p1necone•1h ago

This runs pretty smoothly on my middling laptop CPU while looking like a typical raytracing demo. I assume there's some smoke and mirrors involved?

h4ch1•1h ago

No, it's using the newish SSGI and TRAA webgpu nodes. The three team has been making great progress with SSGI and webgpu in general and i'd recommend checking it out if you're interested.

There's also a denoise node in three (not used in this example), but SSGI still looks kinda blurry.

Work though is still going on: https://github.com/mrdoob/three.js/issues/31892

Sharlin•42m ago

Jesus Christ, trying to figure out what TRAA is (presumably an anti-aliasing algorithm) and how it works and it's entirely impossible to google.

menno-dot-ai•41m ago

Temporal reprojection anti aliasing :)

https://www.threejs-blocks.com/docs/traaHD

Sharlin•36m ago

The only thing even remotely related to graphics I found was references to "TrAA" in forum posts from 2006 (yeah) where I believe they referred to NVIDIA "Transparency AA" or something like that. "TRAA", "TRAA meaning", "TRAA graphics", "TRAA 3D" all gave fully irrelevant results :D

jessepasley•1h ago

Is this marketing for the Shape Store? It's cool but I still don't know when my area is getting a Shape Store.

adzm•1h ago

I tried to be helpful and explain what the shape store was, but found myself with a lack of words. Instead here is the know your meme page: https://knowyourmeme.com/memes/the-shape-store-ai-video

tldr it is an ai video, subtle analog horror / backrooms style

Rendello•1h ago

Beautiful, this must have been an excellent learning experience to make.

I've done some very basic rendering code in C from a rendering internals course, and at the same time I'm learning about perspective from the drawing/art side. I wonder how much learning one would help the other, in a practical way.

akie•46m ago

The author is a world renowned expert in 3D graphics.

verytrivial•1h ago

For some context, I think this is by mr.doob of three.js fame.

hermitcrab•45m ago

I'm a C++ programmer and only passingly familiar with web/JS stuff. What libraries/technologies is this using, apart from Javascript and three.js?

CodeWriter23•34m ago

I was able to get all the balls stuck on the 'ceiling'. Bug or feature?

RankingMember•8m ago

> The babies look unhappy

> Add more balls

Fun simulation. The novelty of stuff like this still hasn't worn off for me in this era where we've got ray tracing in-browser.

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Ball Pit

Comments

The EU still wants to scan your private messages and photos

ARC-AGI-3

My astrophotography in the movie Project Hail Mary

Earthquake scientists reveal how overplowing weakens soil at experimental farm

Apple randomly closes bug reports unless you "verify" the bug remains unfixed

Supreme Court Sides with Cox in Copyright Fight over Pirated Music

Ensu – Ente’s Local LLM app

90% of Claude-linked output going to GitHub repos w <2 stars

Quantization from the Ground Up

Updates to GitHub Copilot interaction data usage policy

TurboQuant: Redefining AI efficiency with extreme compression

Thoughts on slowing the fuck down

FreeCAD v1.1

Goodbye to Sora

Meta and YouTube found negligent in landmark social media addiction case

Ball Pit

Antimatter has been transported for the first time

Slovenian officials blame Israeli firm Black Cube for trying to manipulate vote

Tracy Kidder has died

VitruvianOS – Desktop Linux Inspired by the BeOS

Miscellanea: The War in Iran

Looking at Unity made me understand the point of C++ coroutines

Sodium-ion EV battery breakthrough delivers 11-min charging and 450 km range

Flighty Airports

Show HN: I took back Video.js after 16 years and we rewrote it to be 88% smaller

Jury finds Meta liable in case over child sexual exploitation on its platforms

Data centers are transitioning from AC to DC

Building a coding agent in Swift from scratch

Musketeer d'Artagnan's remains believed found under Dutch church

VNDB founder Yorhel has died