Re: OpenGL performance (Cocoa)
Re: OpenGL performance (Cocoa)
- Subject: Re: OpenGL performance (Cocoa)
- From: Tito Ciuro <email@hidden>
- Date: Thu, 18 Sep 2003 12:43:43 +0200
There's more info here as well:
http://www.apple.com/macosx/jaguar/quartzextreme.html
-- Tito
On Sep 18, 2003, at 10:07 AM, Theo Stauffer wrote:
Hi,
As far as I know, Apple specifies 16MB VRAM at the minimum for OpenGL
accelerated Quartz performance. This would be the cards that would be
in my PBG4 (667MHz) and some of the ibooks. You can find a complete
listing at Apple's site in the knowledge base.
Theo
On Wednesday, September 17, 2003, at 04:44 pm, Jean Bovet wrote:
We have developed a simulation application for our robotic cells
running currently under Windows. I'm in charge to port this
application
to MacOS X and I have some OpenGL performance issue (I don't know if
it's specific to OpenGL or Cocoa): the 3D simulation works at 60 fps
on
the PC (a CAD PC with a NVidia Quadro2 Pro video card) but it runs
only
at 10 fps on my mac (bi-800 and NVidia GeForce 2). I have tried to
run
the app on my PB G4 (Rage 128 card) and it runs at 5-6 fps.
The 3D simulation is composed by around 22'000 polygons without
texture
(only simple color, and using OpenGL list). The OpenGL context is
rendering inside an NSOpenGLView with the following pixel formats:
NSOpenGLPixelFormatAttribute attrs[] =
{
NSOpenGLPFANoRecovery,
NSOpenGLPFADoubleBuffer,
NSOpenGLPFAAccelerated,
NSOpenGLPFAColorSize, 32,
NSOpenGLPFADepthSize, 32,
nil
};
Is the graphic cards inside the Mac too slow ? Does any OpenGL affects
performance on the Mac and not on the PC ? Any hints to optimize the
application ?
Thanks a lots
Jean Bovet
------------------------------------------------------------------
Jean Bovet
Software Engineer
Automation, Production Engineering and Robotics Laboratory (LPR)
E-mail : email@hidden - Voice : ++41 (0)32 930 38 43
EIAJ, Le Locle Site
7, avenue de l'Httel-de-Ville, 2400 Le Locle, Switzerland
------------------------------------------------------------------
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.