On Mon, Dec 16, 2002 at 12:10:03PM -0800, Andy Ross wrote: > > ATI blows you guys away in glxgears. I see 38% faster frame rates > with their drivers. Since I doubt gears is doing anything but > glVertex calls (someone correct me if I'm wrong), I take this to mean > that there's significant room for improvement in the current vertex > transport. I suspect that's a good thing, overall.
I believe glxgears loads everything into a display list, and it wouldn't surprise me at all if ATI's driver were to store the display list on the card. > Running a real application (FlightGear), things were different. You > guys are getting 71% better frame rates (in a thorougly unscientific > test, we don't have a useful benchmark capability in FlightGear). > Something is broken with the ATI drivers; I've submitted a report to > them on this. The specific fps numbers I'm seeing are roughly in line > with what I saw with the GeForce 2MX that used to live in this > machine. I have no idea if that reflects a CPU-limited situation or > driver slowness. Clearly the 8500 hardware "should" be faster. For > the record, FlightGear does almost all of its rendering using 1.1-era > OpenGL, mostly out of standard, unaugmented (i.e. in process RAM) > vertex arrays. No multitexture. Could you do a comparison of the two drivers using my research engine? There's a downloadable binary snapshot at http://www.cs.nmsu.edu/~joshagam/Solace/ I'd be most interested in the framerates achieved by running it with scenes/stress1 with shadows disabled and enabled (pressing 's' in the GUI window). The average framerate from the last 64 frames is displayed on the controlling terminal right after the letter F. Also testing both scenes/cage and scenes/cage-animated would be nice. The same goes for anyone else who wants to really stress their graphics card, at least for standard OpenGL functionality. :) By the way, I wouldn't be surprised if the issue with FlightGear is the same issue I saw with the geForce 4 that I posted about a while ago... displaylists ran amazingly fast, but geometry which is fed to the card for the first time went significantly slower than the Radeon 7000. -- http://trikuare.cx ------------------------------------------------------- This sf.net email is sponsored by: With Great Power, Comes Great Responsibility Learn to use your power at OSDN's High Performance Computing Channel http://hpc.devchannel.org/ _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
