Significant lagging with Sony HMZ-T2

[Sven]

Yes, it is the exact same script as before. In fact, the whole hardware setup is the same - we only exchanged the quadro card with the radeon (and the most recent drivers for it) and the nvis with the sony.
I checked the framerate, it is always at 59-60 Hz, both with my script and the simple script you suggested. The image is never stuttering, it simply lags behind. I guess I'll try a better card then.

[Sven]

OK, tried it again with a new, more powerful card (ATI Radeon HD 7850). Still get the same lagging, though. Anyone have any ideas why?

[Jeff]

When you run the Quadro card with the Sony HMD does it work fine?

[mspusch]

from what you describe, it sound like the lag has to do with the tracking used.

i believe the IS900 is typically integrated directly with the nVis, how did you integrate this with your Sony HMD?
are there any differences?

did you try the setup with just an inertial tracker (like an Intersense 4)?

just a thought ...

[Sven]

Hi,

unfortunately, I can't use the Quadro card with the Sony, as it only has DVI-Outputs and no HDMI. I tried several DVI2HDMI Adapters, but none of them worked properly.
By now, I'm fairly sure that the problem is with the Sony HMD - if I combine the tracker with a small portable monitor instead of the HMD, the lagging vanishes. Googling about the HMZ-T2 and lagging also brings up several hits - apparently, this problem did improve a lot since the T1, but it is still there. Maybe we should wait for the T3, or at least tell our test subjects to avoid fast head movements...