<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd"> <pkgmetadata> <herd>sci-physics</herd> <longdescription lang="en"> Bullet is a professional open source multi-threaded 3D Collision Detection and Rigid Body Dynamics Library for games and animation. </longdescription> </pkgmetadata>