>Curtis Olson >Wed, 02 Jan 2008 10:46:30 -0800 >On Jan 2, 2008 12:32 PM, Fred Larson <> wrote:
>> I put this question to the "General Help" forum, and they suggested that I >> ask >> the users list. >> >> I'm getting frame rates of around 5-8 when flying the default C172P in the >> default 800x600 window. I've done some experimenting with rendering >> options, >> color depth, etc. without much effect. I tried full-screen game mode, >> which >> decreased my frame rate. >> >> Machine: Dell GX270 >> CPU: P4 2.8 GHz >> Memory: 512 Mb >> Video: Intel 82865G integrated >> Monitor: Acer 1680x1050 LCD >> OS: Kubuntu 7.10 (Gutsy) >> >> Do you think this hardware is inadequate to get a better frame rate, or do >> I >> have a config problem somewhere? Any suggestions? >Let me start out by saying that I am biased towards nvidia graphics hardware >becuase it generally works very well and is very trouble free under linux >(your mileage may vary a bit and I'm sure there are counter stories, but >generally I feel that nvidia is the best performing and best supported >option right now for linux users.) >I can say fairly confidently that if you installed a $100 nvidia card or >better, and installed the nvidia linux drivers, you will see about a 10x >frame rate increase. >Regards, >Curt. >-- >Curtis Olson: http://baron.flightgear.org/~curt/ ><http://baron.flightgear.org/%7Ecurt/> >Unique text: 2f585eeea02e2c79d7b1d8c4963bae2d Hello, There is a big problem with Nvidia drivers, because Nvidia add OpenGL 2.0 and 2.1 support in these drivers but some nvidia chip like Geforce 4 MX 440 have only OpenGL 1.2 hardware features support. But Flightgear use nvidia drivers and found Opengl 2.0 support that are only Opengl software features support ans cost a lot in CPU. More analysis here : http://www.mail-archive.com/[EMAIL PROTECTED]/msg14993.html Please add a command line option like fgfs.exe --opengl-version-to-use= for restricting flightgear to use a specific opengl version and not the version that was indicated by the nvidia driver. With this option, I can use flightgear with the GPU opengl 1.2 hardware functions only in my nvidia geforce 4 mx440 graphic card. Opengl 2.0 software functions cost too many in CPU resources/power in Flightgear 1.0.0. Thanks to correct or add this workaround in the Flighgear source. PS : Here , http://wiki.flightgear.org/flightgear_wiki/index.php?title=Hardware_Recommendations >Wiki said : > Recommended hardware specs > 3D hardware accelerator, 128-256 MB, OpenGL 1.2 capable (2.0 even better!) Flightgear should work with only an OpenGL 1.2 capable graphic card. Yannick ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Flightgear-users mailing list Flightgear-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-users
