> Hi Jaime, > > The way I would do passive stereo with two projectors is to attach the > projectors directly to the two outputs from the graphics card, and > then use horizontal split stereo to drive them. The OSG supports this > set up out of the box. Using this setup will avoid any need to use > quad buffer stereo and the limits on hardware/drivers that it > imposses, and it also the best way to drive such a system > quality/performance wise. >
Actually, we have the same Cywiz/Xpo setup. The system works as a normal field-sequential system, the xpo boxes act as signal converters/demultiplexers converting the sequential video to two signals for the "left" and "right" projectors. So yes, you run this with a QUAD_BUFFER mode. The two outputs of a graphic card do not help, these walls have usually 4+ projectors with hardware blending. Jan
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