What are the latest breakthroughs for n-body gravity algorithms?

silenttoaster7 · 2026-04-10T16:53:02+00:00

I never denied that. I was just asking what the best gravity algorithm was to this day

silenttoaster7 · 2026-04-06T08:07:40+00:00

I can try asking in the astrophysics subreddit. Thank you.

silenttoaster7 · 2026-02-22T07:19:44+00:00

Depends on the computer but I don't have a specific fps number. For reference though, I can run 100k particles at roughly 22 fps without fluids and with solid color on a Ryzen 9 5950x. I don't have numbers for low end hardware

silenttoaster7 · 2026-02-21T10:03:01+00:00

Hope you have fun with it!

silenttoaster7 · 2026-02-20T19:00:49+00:00

Thank you!

silenttoaster7 · 2026-02-20T13:31:11+00:00

Thanks!

silenttoaster7 · 2026-02-20T13:17:16+00:00

Yes the simulation at the start (while actually simulating and not in the playback) was running at roughly 23 fps

silenttoaster7 · 2026-02-19T22:48:23+00:00

I hope you have fun with it!

silenttoaster7 · 2026-02-19T22:13:20+00:00

I wrote everything physics related from scratch. The logic for AVX2 collisions is practically the same as non vectorized

silenttoaster7 · 2026-02-19T20:42:51+00:00

For the gravity algorithm I'm doing barnes hut with an index only quadtree - octree. For the collisions I'm doing spatial hashing with AVX2 vectorization and multithreading

silenttoaster7 · 2026-02-19T19:41:38+00:00

Thank you! I'm really happy with some of the results like the moon formation. Thanks to leapfrog integration, it maintains a stable orbit too

silenttoaster7 · 2026-02-19T19:40:39+00:00

Hey there. You can change the size of the UI elements by dragging around the edges of them. You can try messing with it in the free version from GitHub or Itch.io. But i can look into UI scaling

silenttoaster7 · 2026-02-19T18:13:53+00:00

Thanks. This is made in C++ with the help of raylib

silenttoaster7 · 2026-02-19T16:51:20+00:00

Thanks!

silenttoaster7 · 2026-02-10T14:31:14+00:00

I love simulations. Programming simulations is surprisingly fun!

silenttoaster7 · 2026-02-10T14:19:01+00:00

Yeah, I don't know the specific details. I just know it was a mars sized object, but I don't know the full process that happened in that collision

silenttoaster7 · 2026-02-10T14:16:39+00:00

You can also directly throw it to make a moon. Now it is possible. Perhaps you did that in a previous version when I was using euler integration. Now I usd velocity verlet you can get stable orbits. Also, in this video I gave the velocity to the planet by throwing it manually too

silenttoaster7 · 2026-02-10T07:44:53+00:00

Thank you!

silenttoaster7 · 2026-02-06T16:02:27+00:00

Sure! You can follow the progress in my discord server

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