Developers Rewrite Box3D Physics Engine in CUDA for 300x GPU Speedup
A builder on X says a native CUDA port of Erin Catto's new open-source Box3D engine runs far faster on GPU than CPU, and the post has become a small referendum on what AI coding tools can and cannot do.
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“Fable and I rewrote Box3d entirely in native cuda. It's about 30x faster on my GPU compared to my CPU (depending on the situation). This was my hardest benchmark. I still had to be there, but soon I won't. Cost me about 200 dollars”
Yacine@yacineMTBTECH#403Story Brief
On X, Yacine said he and a collaborator called Fable rewrote Box3D entirely in native CUDA and got about a 30x speedup on his GPU versus CPU, while also noting that another post from the same cluster described the result as 300x faster depending on the situation. Catto had only recently announced Box3D as a new open-source 3D physics engine, and Yacine framed the port as his hardest benchmark so far, one he said cost about $200.
“This really is insane. A lot of this wouldn't be possible without frontier models, but it's also not possible without someone like me. I'm still necessary.”
Yacine@yacineMTB
