Hi,
thanks for yesterday's replies.
We used the clone mode passive stereo because our demos
are not only based on real time graphics but also we have some
stereo movies, so that mode is convenient for every application
we want run in passive stereo.
We have six projectors in two rows with Infitec tecnology, they can
be fed in two ways: one signal for every projector (we still have the duets
for splitting the active stereo to passive, from the previous
installation), this
is the case of the Prism machine; the other way is one signal for one row
of three projectors, since they are digital they can take one third of
the pixels
coming from the signal, so for istance we feed them with one workstation
with an Nvidia Quadro FX 4500 configured at 3496x1050 (which is 1400x1050
by three, minus the edge blending), with passive stereo, that's to say
both two signals
taken from the Quadro.
So, if SLI works properly with one signal only, the only way is to use
active stereo,
split it with the Matrox TripleHead2Go, and feed the three signals to
the duets and obtain
6 signals. But there is a problem: the Matrox TripleHead2Go supports
only 1280x1024
by three, while the native resolution of the projectors is 1400x1050....
ouch!
Unless things will be different with Quadros vs GeForce, maybe passive
stereo will be
supported with the new Quadros 4500 X2? Maybe they'll solve the
threading issue?
Or we have to do another crusade against Nvidia this time? :)
--
Tiziano Diamanti
HPC and Visualization
Cineca
Italy
Tel. +39-051-6171717
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