[][Rapier]

[Rapier] is a set of 2D and 3D physics engines for games, animation and

robotics written in Rust.

[This month][rapier-november] the version 0.4.0 has been released with

exciting new features:

- the ability to read contact and proximity information from the narrow-phase.

- the ability to lock some translations and/or rotations for a rigid-body

without using joints.

The following demo shows examples of translation locking (on the blue cuboid)

and rotation locking (full locking on the capsule, partial locking on the

cuboid):


A cross-platform determinism bug appearing on MacOS with the new Apple M1

ARM processor has also been fixed.

The [bevy_rapier] plugin for the Bevy game engine has been updated to support

all the aforementioned features. In addition, it supports:

- the automatic removal of rigid-bodies, colliders, and joints when the entity

they are attached to are removed from the Bevy ECS.

- the ability to attach multiple colliders to a single rigid-body using Bevy

Hierarchy.

[Rapier]: https://rapier.rs

[rapier-november]: https://www.dimforge.com/blog/2020/12/01/this-month-in-dimforge/

[bevy_rapier]: https://www.rapier.rs/docs/user_guides/rust_bevy_plugin/getting_started

[][Salva]

[Salva] is a set of 2D and 3D particle-based fluids simulation engines for

games and animation written in Rust.

Starting [this month][salva-november] Salva 0.5.0 no longer supports

[nphysics] for simulating rigid-bodies. Instead, it implements two-ways

coupling with [Rapier] (see the

[demo](https://twitter.com/dimforge/status/1329467380158898183)).

In addition to the Rapier integration, it is now possible to query Salva

to retrieve all the fluid particles located inside an AABB. This can be

useful for, e.g., spawning new particles ensuring there isn't anything

there already.

[Salva]: https://salva.rs

[salva-november]: https://www.dimforge.com/blog/2020/12/01/this-month-in-dimforge/

[salva-demo]: https://twitter.com/dimforge/status/1329467380158898183

[nphysics]: https://nphysics.org