I have used horizontally interlaced 3D with passive polarized glasses, and 
works fairly well. I only had to slightly adjust the eye spacing slider 
definition in the UI to allow me to input negative values, since the two left 
and right views resulted swapped on my setup. However, interlaced 3D does not 
rely on a specific framerate and sincronization. This means it is flicker free, 
but comes at the cost of halving the vertical resolution and is subsceptible to 
crosstalk.

> From: emili...@gmail.com
> To: flightgear-devel@lists.sourceforge.net
> Date: Fri, 11 Jan 2013 14:25:19 +0200
> Subject: Re: [Flightgear-devel] 3D vision
> 
> On Friday, January 11, 2013 12:07:27 Renk Thorsten wrote:
> > I was wondering if anyone has experience with the stereoscopic view modes of
> > FG. Coming with my new laptop were very fancy NVidia  IR synchronized LCD
> > shutter glasses for 3D vision, and I've used them to have a look at some 3D
> > movie clips, which was sort of impressive. Unfortunately, they don't seem
> > to do anything for any of the 3D view modes of FG - all I see are for
> > instance two images next to each other.
> > 
> > Now, 3D movies appear the same before the glasses activate (which requires
> > to press the 3d button under Windows (no idea if this would ever work under
> > Linux) at which point the two movie image streams get time-shifted
> > superimposed and the IR sync starts activating the glasses. However,
> > pressing the 3D button when FG is running in any of the available view
> > options does precisely nothing, the system does't seem to recognize that
> > there's a 3d capable data stream and doesn't even attempt to fire up the
> > glasses.
> > 
> > I have no idea if this should in principle work and just requires to set
> > some option somewhere, or if the 3D capabilities of FG are simply not
> > designed for the hardware - does anyone have that mode running with similar
> > hardware?
> > 
> There is an option configurable in the xorg.conf file, but this appears to 
> work only on Quadro Cards (it might be simply a case of stale documentation). 
> 
> About a third of the page down here:
> http://uk.download.nvidia.com/XFree86/Linux-x86_64/310.19/README/xconfigoptions.html
> 
> 
> 
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