libbulletcollision2.81 2.81-rev2613+dfsg-3 (i386 binary) in ubuntu saucy

 Bullet professional 3D Game Multiphysics Library provides state of the art
 collision detection, soft body and rigid body dynamics.
 .
 This package contains the BulletCollision shared library.
 .
 It features discrete and continuous collision detection including ray and
 convex sweep test. Collision shapes include concave and convex meshes and all
 basic primitives.
 .
 For more information about Bullet, please refer to the libbullet-dev package.