JD: why not use 50 fps when 25 is not accurate enough? I'm working
on a game who's physics were rather rough at 25, 50 made for smaller
steps in tweens an high-speed object motion. It's hard to do hitTests
or even calculate a hit of a fast object at 25...
On 10 Feb 2006, at 20:49, John Dowdell wrote:
David Skoglund wrote:
I have created a small game that runs with a very high framerate when
running in the standalone flashplayer (90+ fps) but is very
sluggish in both
IE and Firefox (more like 18 fps). As a matter of fact I still get
a good
framerate in the standalone player, while simultainously running the
sluggish game in a browser!
I don’t really understand why the performance is so slow. Can anyone
enlighten me on what bottlenecks I might have stumped onto?
Yup. Browsers vary in how they allocate processor cycles to guest
processes, like plugins. Varies with the browser brand, and varies
with the platform too.
By running in the standalone you showed the natural top-rated
performance.
But I would beg you not to set framerates up at 4500 redraws per
minute -- if your visitor is in a browser like Firefox/Mac, which
does not stop background processes, your visitor could have a very
unpleasant experience, *particularly* if someone else created a SWF
on some other page in the audience's tabbed browsers which asks for
so much processor time.
Even in your "18 fps IE/Win", the engine is *trying* to draw at its
natural speed, even though the vast majority of those frames will
never be displayed. It's a recipe for choking.
Disney animation was 24fps, two-up... twelve distinct pieces of art
per second, each held for two frames on the celluloid. That's an
actual framerate of 12fps. Film and television are usually just
under 30fps. Demanding more than the audience's systems can give
can make the overall experience of using that machine less than happy.
jd
--
John Dowdell . Adobe Developer Support . San Francisco CA USA
Weblog: http://weblogs.macromedia.com/jd
Aggregator: http://weblogs.macromedia.com/mxna
Technotes: http://www.macromedia.com/support/
Spam killed my private email -- public record is best, thanks.
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