-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Frederic Bouvier wrote: > Quoting Vivian Meazza : > >> Robert Black >> >>> Sent: 29 August 2007 03:41 >>> To: FlightGear developers discussions >>> Subject: Re: [Flightgear-devel] [Bug-Report] Stutterer and >>> pauses withdynamic-view >>> >>> >>> On Tuesday 28 August 2007 18:44, Laurence Vanek wrote: >>> >>>> also had this problem in general (not with dynamic view). >>> only thing >>>> that helped was adding the following to my .fgfsrc file: >>>> >>>> --prop:/sim/frame-rate-throttle-hz=75
> I think stutter comes from the threaded scenery tile loader. When you change > view direction, you ask the loader to load more tiles, and when all required > tiles are loaded for a given position, the stutter stops. Also, when there is > an > insane frame rate, there should be no CPU time allocated to the tile loader, > and > thus, the stutter, so limiting the frame rate, either by using the throttling > feature, or activating vsync, should lessen the problem. > > -Fred You can blame some stuttering on the incomplete integration of the tile loader with OSG, something that I'm working on. In particular, display lists are now compiled and textures are now loaded when a tile first becomes visible; the OSG database pager schedules this work over several frames to avoid affecting the frame rate. Also, it's true that activating vsync will leave some predictable time for the pager thread to run when it won't interrupt the main rendering thread. Tim -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFG1YtreDhWHdXrDRURArtXAJ9iZaxcutfB33/geBAr8jjXn+7AygCfZq4G nY9J867TOdCadCHKVMCrZH8= =KsQG -----END PGP SIGNATURE----- ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Flightgear-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/flightgear-devel
