Re: FLASH: site check/fps advice

[Marc Hoffman]

At 05:32 PM 10/10/99 -0600, you wrote:

>I have a question about frame rate for a Flash movie for a presentation.

>

>I'm working on a 15 to 30 second animation ...


...


>The Flash presentation that follows this animation is 960 pixels wide and 

>624 pixels tall, and the client would like the Flash animation to

>fill the screen or at least the width of the screen (the laptop resolution 

>is 1024 x 768). What would be a preferred frame rate for this

>scenario?

>

>I did a test at 12 fps and the lines seem jumpy to me, even when I play it 

>back on my hard drive. I exported this movie at 100 JPEG Quality

>and all the graphics have been converted to symbols. This animation will 

>contain only continuous tone vector graphics.


hi Sharon,


If all vectors, jpeg export setting will not matter. The ability of any 

machine to play back smoothly will depend on the number of pixels being 

changed from frame to frame and the frame rate. It will also depend on the 

machine's processor speed (CPU and video) and other aspects of the video 

display system. Your animation looks smooth on my machine.


It may seeem paradoxical, but there is a trade-off between using motion 

tween and frame-by-frame animation. If you convert a motion tween to all 

keyframes, the Flash player/processor no longer has to calculate the tween 

since the information is then stored frame-by-frame. This is one technique 

to try. Going one step further, having created your motion tween and 

converted all frames to keyframes, you could go into each frame and break 

the symbols apart into raw graphics. This again would reduce calculations, 

since the flash movie would provide the computer with complete information 

for every pixel rather than saying "take such-and-such a symbol and perform 

such-and-such calculations on it, then display the results."  The trade-off 

in these techniques is that the file size will increase, so it won't be as 

good for web playback.


Your other choice is to find a faster machine for playback. That might be 

the better solution, especially if you want to preserve this piece's 

web-worthiness (that is, keep the file size small).


What speed computer are you testing on, and what kind of video display 

adapter, video RAM, and CPU Ram does it have?



Marc Hoffman

maildartfrogmedia [dot] com (mailto:maildartfrogmedia [dot] com)

online flash portfolio: http://www.dartfrogmedia.com/sampler




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