Damnyouall said:
nordlead said:
Where did you get the 50ms of Wii remote lag from? I've seen the articles on the PSMove, and I understand where the Kinect numbers can come from, but I don't see how the Wii Remote is so much slower than the PSMove. They should be about even, not a factor of 2 away.
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Two sources, one from a Wii Remote programming guide: "To avoid the random state put a delay of at least 50ms between every single byte transmission." http://wiibrew.org/wiki/Wiimote and a quote by Rich Hilleman, Creative Director for Electronic Arts who during the Hot Chips symposium in August 2009 commented on the "100ms delay inherent in the Wii remote", which I assume referred to software and hardware. I suppose you could get even more precise numbers if you took the IR scan frequency into consideration (I didn't bother to find that out).
EDIT: Found my third source again: http://www.pitt.edu/~nak54/Wiimote-poster-a4.pdf This is about building a low cost motion capturing system with a Wii Remote, and it says about the hardware: "Latency in acquisition: 50ms"
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Interesting, so that points to a 50ms lag with the IR portion of the controller, but doesn't necissarily represent the entire controller. Due to my past work experience with accelerometers I would expect the actual button presses and accelerometer readings to come through at a much faster rate, but I may be wrong. If it wasn't for the fact that none of this really matters as I don't notice any lag on the Wii anyways I would set up a test on my PC to see if my suspicions are correct.
