frameRate

Thomas McGrath III mcgrath3 at mac.com
Wed Jan 28 14:29:55 EST 2009


That is exactly how the 'extra' tween frames end up in an animation.  
Upon export the tween frames are drawn into key frames for the movie  
playback then the only way to adjust timing is via the playRate FPS  
speed.

Where as most software that has only keyframes will then draw the  
appropriate tween frames based only on the actual FPS desired by the  
application.

So if an animation has 10 keyframes and the software plays that at 30  
FPS but the over all length of the animation is to be 1 second then  
the software will draw the remaining tween frames to total 30 instead  
of 10 with a duration of 1 second. Now if the movie is to be 24 FPS  
then the number of tween frames will be less but the animation will  
still be 1 second long. Upon export the resulting export animation  
will now include these tween frames and changing the playrate will  
actually reduce or lengthen the length of the animation to less than 1  
second or more than one second. It is all based upon the original  
animations keyframes and how the tween frames were generated.

HTHs

Tom McGrath III
Lazy River Software
3mcgrath at comcast.net

iTunes Library Suite - libITS
Information and download can be found on this page:
http://www.lazyriversoftware.com/RevOne.html





On Jan 28, 2009, at 2:14 PM, Richmond Mathewson wrote:

> Wouldn't is be a good idea to control an animation (say, an animated
> GIF) by making it into a Movie file and then messing around with
> playRate with the resultant videoClip?




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