On Wed, 5 Sep 2007, Tom Goddard wrote:
I've seen two machines (laptops) with Nvidia NVS graphics cards that had relatively low Chimera graphics rendering scores. Greg Couch, a Chimera developer says the NVS cards are intended for 2 dimensional graphics. The graphics was much faster on one of the machines after changing some driver settings. I think one change was to turn "triple buffering" off but I'm not sure that is what improved the speed. Perhaps Greg remembers what changes on John Irwin's machine improved the speed.
Tom
The change was to reset the driver settings to their defaults. As for any graphics card with limited memory, do not turn on memory consuming options unless you need them. So for a Quadro NVS, turn off antialiasing, turn off triple buffering, turn on unified back/depth buffer, turn off stereo, and turn off overlay. Turning off antialiasing will have the biggest effect on performance -- you can turn it off on the chimera command line with the --nomultisample option instead of modifying the driver settings. - Greg