From: "nick" To: ml@qoole.com Reply-To: ml@qoole.com Date: Sun, 19 Apr 1998 12:55:40 +1000 Subject: Re: PRT files > From: Murat Alpar > To: "'Qoole Mail List'" > Subject: PRT files > Date: Fri, 17 Apr 1998 14:45:42 +0300 > Reply-to: ml@qoole.com > Hi, > > Whats the purpos of the PRT files? > > Murat ALPAR > T-REX > ok, this is my understanding - it may be completely wrong, but hey, someone'll pick me up... when qbsp does its magic, it makes a 'list' of portals (hence .prt) which are empty spaces in the level (ie parts where you can move around in, not the void, and not walls) vis gets this list and figures out which bits of the level can be seen from each of these portals, and tries to cut down the visible portals as much as possible (on -level4 anyway). so basically its just for vising purposes. note that a .prt file won't be generated if the level has a leak... hope this helps, nick