On Tuesday 15 June 2010 17:55:56 Paul Davis wrote: > On Tue, Jun 15, 2010 at 11:27 AM, James Morris <ja...@jwm-art.net> wrote: > > Incidentally, if I want the GUI to update very close to real time, say > > a grid of blocks flashing on and off as notes come and go, any > > thoughts? Would a GTK GUI update fast enough? > > key insight: your display monitor only redraws between 60 and 90 times > per second. attempting to redraw anything more frequently than this is > simply wasting CPU cycles and making your life more difficult. put > more bluntly: it doesn't matter if you have notes turning on and off > 1000 times per second - you and your users not working on a display > device that can possibly show this.
Unless you make your lights "slowly" go on an off with transitions, there isn't even a need to be faster then 25 or 30 updates per second. The slowest part here is the human eye. And the requirement for >60Hz refresh rate for pictures comes from the good old days of CRT screens. Arnold
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