I can back this up. I have it direct from an engineer at Apple that
quad-buffered stereo is operational in almost the whole range of Apple
cards. This apparently caused some difficulty between Apple and Nvidia
in the past, as Nvidia wanted Apple to include the feature to drive
sales of the high-end Quadro cards, and now stereo-in-a-window is only
enabled on Quadro cards.
The caveat with using quad-buffered mode is that Apple's machines
don't include any means of signalling the shutter glasses or stereo
goggles, so you're back to using something like the Stereographics
blue-line detector box to perform the signal extraction.
Regards,
Phil.
On 18/05/2009, at 9:27 PM, Jan Ciger wrote:
Thomas Hogarth wrote:
Hi Peted
Liked your info on Quadbuffered opengl and stereo modes. I have one
interesting point to add. I recently brought a MacBook with an Nvidia
9400m graphics card. This card 'does' support quadbuffered opengl and
seemingly so do all recent Macs using Geforce graphics cards.
Do you have some source to back this up? Did you try if it actually
works? You can do that even without glasses - if the mode is
broken/unsupported you get an OpenGL error about unsupported visual.
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