Bullet (software)

Bullet is a physics engine which simulates collision detection as well as soft and rigid body dynamics. It has been used in video games and for visual effects in movies. Erwin Coumans, its main author, won a Scientific and Technical Academy Award[4] for his work on Bullet. He worked for Sony Computer Entertainment US R&D from 2003 until 2010, for AMD until 2014, and he now works for Google.

Bullet Physics Library


Developer(s)	Erwin Coumans, et al.[1][2]

Stable release	3.05[3] / September 24, 2020 (2020-09-24)

Repository	github.com/bulletphysics/bullet3
Written in	C, C++
Operating system	Microsoft Windows, macOS, Linux, iOS, Android, PlayStation 3, Xbox 360, Wii
Type	Physics engine
License	zlib License
Website	www.bulletphysics.org

The Bullet physics library is free and open-source software subject to the terms of the zlib License. The source code is hosted on GitHub; before 2014 it was hosted on Google Code.[5]

Features

Rigid body and soft body simulation with discrete and continuous collision detection
Collision shapes include: sphere, box, cylinder, cone, convex hull using GJK, non-convex and triangle mesh
Soft body support: cloth, rope and deformable objects
A rich set of rigid body and soft body constraints with constraint limits and motors
Plugins for Maya, Softimage, integrated into Houdini, Cinema 4D, LightWave 3D, Blender , Godot , and Poser
import of COLLADA 1.4 physics content
Optional optimizations for PlayStation 3 Cell SPU, CUDA and OpenCL[6]

The Bullet website also hosts a Physics Forum for general discussion around physics simulation for games and animation.

At AMD Developer Summit (APU) in November 2013 Erwin Coumans presented the Bullet 3 OpenCL Rigid Body Simulation.[7][8]

Physics engines (list)
Game physics Procedural animation Physically based animation Ragdoll physics
Free / open source	Box2D Bullet Cannon.js Chipmunk Newton Game Dynamics Open Dynamics Engine OPAL Physics Abstraction Layer PhysX Phyz Project Chrono Siconos Simulation Open Framework Architecture Tokamak
Proprietary	AGX Multiphysics Algodoo Chipmunk Digital Molecular Matter Euphoria Havok Reactor Vortex

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