What about this from the code archives...
http://www.blitzbasic.com/codearcs/codearcs.php?code=1083
Haven't tested it but it says on the tin that is avoids collisions with meshes.
http://www.blitzbasic.com/codearcs/codearcs.php?code=1083
Haven't tested it but it says on the tin that is avoids collisions with meshes.