040000 tree bef7950b88b0db62e53056a493fa49a6cbfe7e22	general
040000 tree a6a4c88e73e38fccd5b52c0a2081ec4211ab5b15	hit-testing
040000 tree a0877f818d0e7e23db67f870a362b49a392a7b5a	point-mapping