SUMMARY: Licensing and OpenGL questions
Milligan, Eric T. <Eric.Milligan <at> ngc.com>
2004-10-06 14:22:42 GMT
Belated, but in case anyone was curious:
HP support basically says that the PowerStorm was a better card than the Radeon that "replaced" it.
According to the tech, the Radeon is an "affordable" 3D graphics card. I guess "affordable" and "lousy"
are equivalent in HP-speak. They claimed that the PCI Radeon we were using would perform better if we got an
AGP version; our machine (a Microway UP2000+ Number Smasher) doesn't have any AGP slots so I can't verify that.
We think we've narrowed the problem down to calls to glCopyPixels; replacing that call in a demo app with
glXSwapBuffers makes the performance much much better. Of course, the app we're having problems with
isn't one in which the switch would be easy.
HP's suggestion was to continue acquiring refurb'ed PowerStorm 300s through Island Computing, or to
rewrite our app.
In a system here with a Radeon 7500 (3X-PBXGG-AA) card, purchased through a third-party, said came with an
Open3d license, Model # QL-0AFAE-AA. I noticed in the docs for the Radeon that it calls for a license,
QL-6ZRA9-AA, to use this card. So, my first question is whether these licenses are equivalent, if we need
to use both, or can only use the QL-6ZRA9-AA license.
I ask because we have an OpenGL app that worked fine on older PowerStorm cards (i.e. 350s, 300s) that now
appears to chew CPU (60% of 833mHz) when using the Radeon. Replacing the Radeon with a Powerstorm350
brings CPU usage down to ~.5% and graphics redraws are much smoother. So, not sure if it's a hardware