Rapier
Fewer than 5 people recommend it so far, so there's no written verdict. Here is what commenters said.
3recommend
0warn against
Dec 5, 2025first mention
Oct 23, 2026latest mention
Why people recommend it
“maybe the most impressive real time soft body simulation”
“i love that we went from bullet being the only real option for open source 3D physics to jolt, rapier, avian, nvidia physx and now box3d.”
Show 1 more
“Rapier for fast physics”
Caveats and dissent
No one in these comments warned against it.
Often compared with
Threads where it came up
- Show HN: Impossible Machines: declaratively program the physical world 2 mentions
- Announcing Box3D :: Box2D 2 mentions
- Advanced soft-bodies for games with the Rapier physics engine 1 mention
- Show HN: Mystral Native – Run JavaScript games natively with WebGPU (no browser) 1 mention
- A Year of 3D Printing 1 mention
- eXoSpace – Built Using Rust, Rapier, WGPU and EGUI 1 mention
Data: rapier.json. Quotes are verbatim; the verdict and theme labels are written by a model from these comments, and every clause links to its sources.
All comments 8
“Rapier (https://rapier.rs/) for simulating bodies, joints, collisions, forces, etc.”
“I'm running a simple heuristic to test for candidate solutions and running them through Rapier (https://rapier.rs)”
“maybe the most impressive real time soft body simulation”
“I'm a bit familiar with Rapier (and before that Cannon and Ammo) so how does it compare?”
“i love that we went from bullet being the only real option for open source 3D physics to jolt, rapier, avian, nvidia physx and now box3d.”
“It does use the rapier physics library”
“It's using three.js with rapier for physics.”
“Rapier for fast physics”