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Hi Thomas,

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.

I tried googling for some additional info and didn't find anything. If
this is true, it would be the first consumer Nvidia device that would
have it, not to mention a laptop. Normally only the high-end Quadros
have this feature enabled. The hardware is on the GeForces too for the
most part, but disabled/unsupported by the drivers. It used to be
possible to hack the driver/card to think it is a Quadro  and enable
this, but that hack doesn't work since a few years any more.

> On another Stereo note, sadly Philips has stopped making their 3DWow
> range so looks like OSGs support will not be as great as I had hoped.

Well, to be honest, this was a solution looking for both a problem and a
market, in my opinion. With no 3D content to show on these
ueber-expensive TVs, I wonder what did the managers smoke to think it
was a good idea ...

On the other hand, getting a projector is possible under 200-300 EUR
these days, so two DLP projectors, a simple jig, pair of filters and you
have a better passive stereo than any of those TVs, and not tied to any
particular graphic card or drivers (anything with two outputs will do).

With the new LED projectors you can even have a desktop solution (up to
60" image in normal ambient light) without having to worry about the
lamp costs ...

Regards,

Jan


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