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puu
08-06-2002, 01:46 AM
I may be showing ignorance here, but here goes...

can anyone tell me what the special drivers do for Maya that you get with a Quadro card, that separates them from the 'ordinary' drivers you get with Geforce. I mean what exactly is optimized? I know that antialiasing is disabled for example... but I can disable that anyway. So yeah, whats the difference?

Houkah
08-06-2002, 03:16 AM
Overlays. Painting and artisan in general is really slow on a normal geforce card. I saw a huge improvement when i did the softquadro patch. I'm not sure about anything else.

puu
08-07-2002, 12:55 AM
I am looking at the thoughts of softquadro's developer, here:

http://www.nvworld.ru/docs/sqe.html

he basically says the geforce and quadro are the same (give or take different board specs) and the gf options turned off are:

Hardware Accelerated Lines
Hardware Accelerated Antialiased Lines/Points
Two-sided Lighting
Shared back buffer and depth buffer
User Clipping Planes

he goes on to say:

chances are that NVIDIA OpenGL ICD is using different portions of code and different optimization strategies for Quadro and GeForce cards accordingly. There are many undocumented registry keys in ICD (OGL_App_SoftImage, OGL_App_SupportBits, OGL_ApplicationKey and so on), used to optimize driver performance under a number of different professional apps: SoftImage 3D, 3D Studio Max, Maya, Lightwave and so on.

I guess that answers my question huh?

puu
08-07-2002, 12:57 AM
just to point out for the last unwinder quote: those application specific presets are probably groupings of the features that are deemed to work best with the app. Would real performance difference they make with app is unclear...

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