d5f5ddf2f1922b5b835cdaabd917e42c3e51ea59
It is off by default, see attributes of dSolverNode to turn it on
Bullet is a 3D Collision Detection and Rigid Body Dynamics Library for games and animation. Free for commercial use, including Playstation 3, open source under the ZLib License. Discrete and continuous collision detection, integrated into Blender 3D, and COLLADA 1.4 Physics import. See the Bullet_User_Manual.pdf for more info and visit the Bullet Physics Forum at http://bulletphysics.com
Description
Languages
Wavefront Object
70.5%
C++
13%
Mathematica
8.2%
COLLADA
5.8%
C
2%
Other
0.4%