Mathias Fröhlich > > On Tuesday 21 November 2006 22:44, Georg Vollnhals wrote: > > I can only confirm the big fps improvement, with the OSG cvs compile of > > this evening I get (nearly) stable 85 fps at KSFO with the Cessna. > > This might say nothing to you, but the *very first* OSG compile started > > here with about 48 fps, one of my latest reports after first > > improvements was about 65 fps and *now* I get 85 fps - that is nearly > > doubled speed and very smooth! And no fps reduce anymore when crossing > > KSFO terminal buildings east to west (west to east is another strange > > story, see "bad news".) Very good work, Mathias, thank you once again! > Ok. It settles down more slowly than I expected. > But it is getting better ...
It certainly is. Here with MSVC8/Win32 frame rates are the same or better for cockpit views of 3D panel models when compared to plib. 2D models remain 25% down. Interestingly, external views also remain about 25% down, and are often worse than the cockpit view. I can't think why this might be so, but it's a fault in the right direction. KSFO has a huge effect on frame rates - 50% reduction compared with over the sea, but I have not seen the effects described by Georg. There is still some bad news - the frame rates fluctuates wildly between 1-3 and 50-51 and then there is a not infrequent hang while the computer goes and does something else. > > > Then the BAD NEWS: > > 1. Strange behaviour: > > Crossing KSFO terminal buildings E -> W does not reduce framerate nor > > are any problems visible > > Crossing KSFO terminal buildings W -> E reduces framerate from 85 to 56, > > stuttering, then in most cases (several tests, reproducable!) FG crash! > > What is the reason for this (unlogic) behaviour? > > Can anyone else reproduce this? > > - Default Cessna 172p, default KSFO scenery. After takeoff do an > > immediate left-turn crossing that parked yellow-red 737, then a right > > turn in direction of the KSFO terminals, crossing them E -> W. (This > > should not do anything). After having passed the terminals fly until you > > can make a normal turn back to the KSFO terminals, trying to cross them > > in W -> E direction. Watch your fps, any changes?. IF no crash occures > > pass the terminals and do this procedure 2 times again. IF you manage > > to fly further, you are lucky and we all have more knowledge. > Noted. > > I am still not responding well to bug reports. Most of them are just > secondary > effects of 'things not yet done right'. I spend more time improving the > ground than hunting bugs that will most likely disappear when we some > cleanup > has happened. > It's all very encouraging, well done Mathias. Let's hope there's more to come so that we can start to use the more advanced features of OSG. Sorry I couldn't make this report earlier - MSVC decided to stop compiling cvs-osg. Probably something I did: a complete rebuild of the project solved it - just took a day of work ... Vivian ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
