Message: 10
Date: Wed, 9 Sep 2009 14:54:01 -0700 (PDT)
From: SparkOut <[email protected]>
Subject: Re: Graphic speed comparison between webLets and desktop
stacks
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset=us-ascii
James Hurley wrote:
On the Mac there has been a longstanding problem in using repeat
loops
to control the movement of screen objects. It is necessary to
insert a
forced screen refresh every time through the loop on the desktop.
That
problem goes away on the Web. A screen refresh is no longer needed.
The stack I wrote is very busy, lots of factors to vary in order to
compare all the possibilities. If you have the courage you can
compare these things for yourself on the desktop using the stack:
go url "http://jamesphurley.on-rev.com/OnRevGraphicTimer.rev";
And on the Web, go to
http://jamesphurley.on-rev.com/OnRevTimer/test.html
The stack is a little busy. Jim Hurley
(P.S. On the third card of the stack above I added is a simulation of
planetary motion. The speed is fine on the desktop and the motion is
very smooth, but it is WAY too speedy on the Web. I didn't include
any accommodation for the speed change on the Web. A good example of
the need to do so.
For comparison, I tried some examples on Windows (XP, Rev Enterprise
4.0-dp-4, Internet Explorer 8) and got identical* results on the
desktop
stack as with the revlet.
*OK, I got the range 727, 728 or 729 milliseconds consistently when
choosing
90 points in the circle and 7 milliseconds on the delay slider.
--
And I meant to say, the blue planet spinning round the sun was high
speed to
the point of stroboscopic inability to see where it was at any given
point -
both on the web revlet and the desktop stack.
--
SparkOut,
Thanks for the feedback. I knew that the Rev took a hit on the Mac in
these kinds of applications, but I didn't realize it was this bad.
That make the PC roughly twice as fast as the Mac. Makes it difficult
to develop cross platform.
Jim Hurley
_______________________________________________
use-revolution mailing list
[email protected]
Please visit this url to subscribe, unsubscribe and manage your subscription
preferences:
http://lists.runrev.com/mailman/listinfo/use-revolution
