hi cyrill thanks for replying
On Mon, 2006-11-27 at 20:10 +0100, cyrille henry wrote: > hello, > > in order to know if your driver suport hardware acceleration, you can try : > > glxinfo | grep direct it says: 'direct rendering: Yes' > if it says yes : then you have hardware acceleration, so gem should use it. > > anyway, ubuntu do not distribute by default binary driver, so the opengl > stuff is not very efficient. > i think you should install the binary driver (if compatible with your vision > of open source) i know, that is why i installed the proprietary/binary fglrx-driver. > once this is made, you should have "good" acceleration, and gem should use it. > it still think, that i have 'good' acceleration. for example i can run opengl based games like armagetron in fullscreen mode without any performance problems. also does xscreensaver run without using much cpu in fullscreen mode. i tried once to build something with a similar number of polygons like one of the screensaver animations in gem, but at least when i switch to fullscreen mode, my cpu goes to 100% and the framerate dramatically drops down to 5 frames per second or slower. because of this behaviour, i believe that gem is the only opengl based software on my computer, that does *not* use hardware acceleration, whereas it seems that other programs do. unfortunately i still don't know a reliable way to make sure, whether gem uses hardware acceleration or not, besides comparing its performance with other software. my problem in other words: how can i make sure at compile time, that gem is compiled so, that it uses hardware acceleration afterwards? and i am still hoping to hear some succes stories.... roman > well, i hope it help, > cyrille > > > Roman Haefeli a écrit : > > hi all > > > > i am trying to use gem, since i changed to ubuntu. i used gem before > > successfully on windows on the same computer. but since i started > > compiling gem myself on ubuntu dapper, i am not convinced by its > > performance and i strongly believe that i am doing something wrong, or > > anything on my computer is not optimized etc. > > > > specs: > > Pentium M 1.7GHz > > Ati Radeon Mobility 9600 > > Ubuntu Dapper > > > Xorg 7.0.0 > > xorg-driver-fglrx > > gem from cvs (checked out today) > > the output of './configure': > > http://romanhaefeli.net/gem_configure.txt > > > > > > why am i thinking that gem is not working well on my computer? > > > > the screensaver also does opengl stuff, that seems to be quite > > complicated in my eyes and it does eat only a little of the cpu-power, > > when running. also running the same gem-patches on windows seems to be > > not only 2x-3x faster, but maybe 30-50 times. running fgl_glxgears gives > > me values between 440 and 450 frames per second, which makes me assume, > > that hardware accelerated opengl works on my computer. > you should have 10 time more with this card. > > > so i suspect gem > > no to use any hardware acceleration at all and i wonder why. is there a > > way to check, if gem uses hardware acceleration? if yes and if my gem is > > _not_ using hardware acceleration, what do i need to do in order to make > > gem use of it? > > > > > > > > many thanks in advance > > > > roman > > > > > > > > > > > > > > > > > > ___________________________________________________________ > > Telefonate ohne weitere Kosten vom PC zum PC: http://messenger.yahoo.de > > > > > > _______________________________________________ > > PD-list@iem.at mailing list > > UNSUBSCRIBE and account-management -> > > http://lists.puredata.info/listinfo/pd-list > > > > > > _______________________________________________ > PD-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list ___________________________________________________________ Der fr�he Vogel f�ngt den Wurm. Hier gelangen Sie zum neuen Yahoo! Mail: http://mail.yahoo.de _______________________________________________ PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list