Live data from Hacker News

Box3D, an open source 3D physics engine

box2d.org

31–40 of 135 posts

Re: Box3D, an open source 3D physics engine

#31
I'm a bit familiar with Rapier (and before that Cannon and Ammo) so how does it compare?

PS: FWIW made my own physics engine in 3D space just few weeks ago (and shared it here). OK ok ... it's just a 1-liner that brings an object down at regular interval but it's surprising how well it works already! I recommend you give it a go as from a learning perspective it's really fun.

Re: Box3D, an open source 3D physics engine

#32
post #20

> On the Valve side, Rubikon continues to evolve and Dirk has developed optimizations (similar to those in Box3D) in a new engine called Ragnarok. Look for that in future Valve games. wait....

Don't get your hopes up, it'll be used in deadlock's volleyball game mode

It’s hilarious that I can’t tell if you’re being serious or not here

Re: Box3D, an open source 3D physics engine

#33
Oh I'm so ready for this.. I've had some success with Box2D in the past, it's well and truly one of the top bits of F/OSS out there.

Box3D-based Spectre VR? It's so happening. (Shades of Tanarus ..)

EDIT: holy smokes, the transition to recording and playback in the Legend of California demo (Unreal Engine-based) is quite a jarring leap. If you at first get the impression things are quite basic, be sure to get into at least 18:00 into the demo video, it gets pretty wild .. recording and playback is awesome.

Re: Box3D, an open source 3D physics engine

#35
post #3

Box2D was a foundation for a lot of interesting physics oriented indie games in my day. I wonder if the landscape is empty enough for a resurgence.

There weren't many free and open source 3D physics engines to begin with. The ancient forefathers are ODE, Bullet and Newton Dynamics (all first released in the early 2000s), then nothing(?) for nearly two decades until Jolt in 2021 and now Box3D. Any addition to this small and exclusive list is very welcome :)

NVidia made PhysX open source in 2018, and it was free to use before.

Re: Box3D, an open source 3D physics engine

#36
post #3

Box2D was a foundation for a lot of interesting physics oriented indie games in my day. I wonder if the landscape is empty enough for a resurgence.

I used Chipmunk2D a little back in the day, found it easier to use for whatever arcane thing I was doing.

Box2d was somewhat recently rewritten in c and the api is improved, fwiw.

Re: Box3D, an open source 3D physics engine

#37
post #34

Funny to see this just a few days after I’ve started building a Tron-like 3D game for the browser using Jolt[1]. So far Jolt is working pretty well but I’ll certainly be taking a look at this. 1 - I’ve been sitting on this domain for years: https://lightcycles.io

About Jolt, do you mean https://github.com/jrouwe/JoltPhysics ?

Re: Box3D, an open source 3D physics engine

#38

> On the Valve side, Rubikon continues to evolve and Dirk has developed optimizations (similar to those in Box3D) in a new engine called Ragnarok. Look for that in future Valve games. wait....

Valve is working on a game codenamed HLX that apparently uses a ton of physics features. No idea what "HLX" means though.

Re: Box3D, an open source 3D physics engine

#39
post #37
post #34

Funny to see this just a few days after I’ve started building a Tron-like 3D game for the browser using Jolt[1]. So far Jolt is working pretty well but I’ll certainly be taking a look at this. 1 - I’ve been sitting on this domain for years: https://lightcycles.io

About Jolt, do you mean https://github.com/jrouwe/JoltPhysics ?

Yep, there is a WASM build with full feature support: https://github.com/jrouwe/JoltPhysics.js

Re: Box3D, an open source 3D physics engine

#40
Glad to see the release, Box2D has some of the best code I've ever read.

It's interesting to see that Box3D was originally a fork of a physics engine made by Dirk. Dirk is one of the best presenters in GDC, and so influential in Physics Engine space, nice to see how he's continuing to push the latest and greatest forward.

Post reply on HN