OBB包圍盒和實現(AABB和OBB的簡介)
http://hi.baidu.com/jorbin/blog/item/2e7c2df5c146f423bd310977.html
http://hi.baidu.com/hn18003/blog/item/71e43340a2ede11d9213c66f.html
國外網站
http://www.gamasutra.com/view/feature/3383/simple_intersection_tests_for_games.php