Don't know if that can help, but i get 20 fps when there is less than 1185 squares without light. And it is 1090 fps with light. Configuration : pd 0.42.6, GEM 0.93.SVN rev3578M, NVidia 9700 GTS (2 years old). ++
Jack Le lundi 24 janvier 2011 à 19:27 +0100, cyrille henry a écrit : > hello, > > i've got performance question regarding Gem an openGL. > > i made a test using an OS on a custom liveUSB, so that i can have the same > software environment on 3 different computers: > ubuntu 10.04, NVIDIA driver v270, pd vanilla 42.5, and Gem svn. > > this computer are: > > very old laptop: > intel core 2 / GeforceGo 7700M > > old laptop: > intel core 2 duo / Geforce 9650M gt > > new laptop: > intel core i7 / Geforce GT 425M > > i made a test with glsl performance, and everything is normal : a newer > computer is many time faster than the older. > > > BUT, using a very simple patch (like attached), drawing only many time the > same square, i can't see any really significant performance difference. > > how could that be? what can be the botleneck? > (with "lighting 0", i can draw about 400 square before the fps goes down) > > > > but i've got a bigger problem : > with "lighting 1", the 2 old laptop can draw about 10% less square (than with > lighting 0). but the new one can draw only 3 times less square. > So the new laptop is lot's slower than the old one when light is on. > > does anyone already experience something like this? > any idea why, and how to solve this? > > thanks > Cyrille > _______________________________________________ > GEM-dev mailing list > [email protected] > http://lists.puredata.info/listinfo/gem-dev
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