[racket] Facing some flickering problems
an example of that handler...in code would be much appreciated
On Fri, Jul 23, 2010 at 10:17 AM, Matthias Felleisen
<matthias at ccs.neu.edu>wrote:
>
> Matt, what's missing from Universe to avoid your kind of flickering isn't
> double buffering. It is a handler that allows you to send updates to an
> established scene so that you don't have to draw the whole scene over into
> the canvas.
>
> (Plus a change to the timing guarantees. I made the mistake of measuring
> the clock ticks from tick to tick. As Matthew (Flatt) pointed out in
> January, I should start the next tick at the end of the draw action of the
> preceding tick. That will simplify your programming model and my internal
> organization.)
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