About
Box2D Docs
Box3D Docs
Old Docs
Posts
Publications
Posts
2026
Box2D 3.2
Oct 18
Contact Recycling
Oct 12
Inscribed Spheres
Sep 29
SIMD for Collision
Jul 18
Announcing Box3D
Jun 30
Replay
Jun 7
2025
Box2D 3.1
Apr 19
Dynamic Tree Improvements
Mar 21
2024
Determinism
Aug 27
SIMD Matters
Aug 19
Releasing Box2D 3.0
Aug 9
Solver2D
Feb 5
2023
Simulation Islands
Oct 8
Starting Box2D 3.0
Jan 15
2020
Ghost Collisions
Jun 21
Stuck Inside
Apr 12
Predictive Joint Limits
Apr 3
2018
How to Transform a Plane
Sep 5
Box2D Subreddit
Jul 7
Box2D Discord Server
Jun 24
2014
Balancing Dynamic Trees
Aug 7
Computing a Basis
Feb 3
Troublesome Triangle
Jan 31
2012
m128
Aug 31
Shape Coordinates
Mar 25
2011
Pixels
Dec 17