sebcrozet

6 ms·

1.
by sebcrozet 6y ago
Yes, it uses a Newtonian formulation. Another physics engine (nphysics) I wrote before rapier, had a Lagrangian formulation of joints (using reduced-coordinates). This is something I intend to add to Rapier too at some points.
2.
by sebcrozet 6y ago
No C bindings so far. This is something I would like to consider doing at some point. Though when exactly it is done will depends on the demand since I have limited resources.
3.
by sebcrozet 6y ago
The main source of inconsistency for nphysics performances is its broad-phase algorithm. It is a tree-based approach which is admittedly not written very efficiently and has very unstable performances when most objects moves.
4.
by sebcrozet 6y ago
Author of Rapier here. The best way to get help would be to join our discord server [1]. There is a channel dedicated to rapier.js. So far most of us are Rust devs but we want to grow our JS community progressively. You can also ask questio
5.
by sebcrozet 6y ago
Yeah, ray-casting and CCD are missing currently, mostly because I didn't have the time to implement them yet (though I did implement them on ncollide/nphysics ( https://nphysics.org ) so it is mostly a matter of adapting
6.
by sebcrozet 8y ago
Well most physics engine, including nphysics, bullet, box2d, are able to achieve much more realistic simulations: just increase the number of iterations for the constraints solvers, and reduce the timesteps length. Of course this will no lo
7.
User guide and WASM demos for nphysics: Rust physics engine with multibodies(nphysics.org)
100 points by sebcrozet 8y ago|8 comments
8.
by sebcrozet 12y ago
Yes, the physics demo shown in the user guide was a bit slow (less than 60fps for sure). This video was made one year before today, using a version of nphysics that was at least 5 times slower than the current one. Also, unless the gravity
9.
by sebcrozet 12y ago
The one application I know for 4D collision detection is 3D continuous collision detection. If two 3D objects are moving, you can parameterize their movement through time to obtain a 4D shape. If those movements are only translational, and
10.
Ncollide − a Rust 2D and 3D collision detection library(ncollide.org)
57 points by sebcrozet 12y ago|9 comments