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.
TRAA basically works by using a history buffer, for example using the last couple of frames, all jittered a little bit to compute the pixel. There's still ghosting and smearing that can happen though because of this technique, so you have methods to counteract like subpixel correction where u increase temporal alpha when velocity is subpixel, but that can introduce some artifacts as well.
There's also SMAA T2x which the pmndrs team is planning on integrating into their postprocessing package[0]. This cryengine3 slideshow gives a nice overview of antialiasing methods if you're interested: http://iryoku.com/aacourse/downloads/13-Anti-Aliasing-Method...
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
If you make the assumption that "AA" is some form of antialiasing, it's not too bad: first scholar[1] hit expands the acronym to Temporal Reprojection Anti-Aliasing
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.
I see, it looks like he's the one behind ThreeJS. Well, he had to make ThreeJS before he could make this, and that must have been a learning experience, right? :D
Graphics and physics performance in 2026 across all kinds of hardware is wildly impressive.
> 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.
Some ball shadows look kind of grainy but moving my finger around moves the balls around.
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
There's also SMAA T2x which the pmndrs team is planning on integrating into their postprocessing package[0]. This cryengine3 slideshow gives a nice overview of antialiasing methods if you're interested: http://iryoku.com/aacourse/downloads/13-Anti-Aliasing-Method...
[0] https://github.com/pmndrs/postprocessing
This paper also provides a decent overview of TRAA: https://fileadmin.cs.lth.se/cs/Education/EDAN35/projects/17C...
https://www.threejs-blocks.com/docs/traaHD
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.
https://en.wikipedia.org/wiki/Cornell_box
And next to it was a super beefy computer doing a 3D rendering of a similar scene.
35 years+ later I've got "many spheres in a Cornell box" rendering in my browser, love it : )
tldr it is an ai video, subtle analog horror / backrooms style