From: dstamp@watserv1.uwaterloo.ca (Dave Stampe-Psy+Eng) Subject: Re: TECH: Maximum lag time? Date: Fri, 14 Aug 1992 17:07:11 GMT Message-ID: Organization: University of Waterloo In article pjm@bbn.com (Paul J. Metzger) writes: >Many helmet display systems we've seen have a fairly large lag time >associated with them with an end result being images that appear to >slosh around. > >Our question for the net is: What is the maximum acceptable lag time >from when a position/orientation sensor detects new data to when a >computer generated image is displayed, such that the "perceived" lag >is negligible? I don't have my sources handy, but as I recall anything below 50 mS is considered negligable, anything over 250 mS is quite nasty. 500 mS or more is almost unusable. -------------------------------------------------------------------------- | My life is Hardware, | | | my destiny is Software, | Dave Stampe | | my CPU is Wetware... | | | Anybody got a SDB I can borrow? | dstamp@watserv1.uwaterloo.ca | __________________________________________________________________________