Refresh rates and stereoscopic imaging
When the hardware is running in free running stereoscopic mode and an
image or 3D scene is being viewed through LC shutter glasses, the user
will see the resulting image at half the original refresh rate through
the shutter glasses. Hence a normally acceptable display running at
60Hz becomes a hard to view display running at 30Hz stereoscopic. For
this reason when running in stereoscopic modes it is desirable to
significantly increase the refresh rate of the graphics mode to values
as high as 120Hz to 150Hz (depending on the monitors capabilities),
which provides for 60Hz or 75Hz refresh per eye in stereoscopic modes.
The graphics device driver has full support for refresh rate control when
setting a display mode via the SetVideoMode function.
Stereoscopic applications can use this functionality in combination
with the VESA GTF standard to increase the refresh rate of the
stereoscopic application to acceptable levels (see the above section on
refresh rate control for more information).
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