DOH!

If I understand this correctly....(brace yourself and try not to laugh).
An example might be, an animation of a man walking across the screen (left
to right).
when the man get to the other side the scene changes. So the key frames
would be the start and scene change frames. All the frame between are just
(data frames?) that describe (or display?) the man walking. since the
background does not change you can get a higher compression of the animation
as a hole?

C.J. - POV User.....


Thorsten Froehlich <tho### [at] trfde> wrote in message
news:39b80cc2$1@news.povray.org...
> In article <39b5478a$1@news.povray.org> , "C.J."
> <hou### [at] yahoocom> wrote:
>
> > If memory serves me right (always a gamble with me...). A  "Key Frame
Rate"
> > is a method of creating variable animation speeds in an animation. For
> > example, lets you have 3 key frames (A, B, C) and 30 frames. From frame
A to
> > B you have 20 frames and from B to C you have 10 frames. So when you
play If
> > the "key frame rate" is 3 key frames a sec, then  animation will play
faster
> > over A to B, than it will from B to C. Because A-B has more frames to
play
> > in the same time as B-C...
>
> Nope, your memory is defective, you will have to upgrade ;-)
>
> The key frame rate has nothing to do with the frame rate.  A key frame is
> just a complete frame, while the frames following it just describe the
> difference based on this frame. The key frame rate just determines how
often
> a key frame is inserted.
>
> In practical terms: If you have a lot of movement, a high key frame rate
can
> help (but will increase the data rate, too), while if you have little
> movement from one frame to the other a high key frame rate will just
reduce
> the compression you can reach.  Of course the details are different from
one
> codec to the next.  Note that some modern codecs can insert key frames
> dynamically (and support a dynamic key frame rate, too) and you don't need
> to bother setting it at all.
>
>
>       Thorsten
>
>
> ____________________________________________________
> Thorsten Froehlich, Duisburg, Germany
> e-mail: tho### [at] trfde
>
> Visit POV-Ray on the web: http://mac.povray.org

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