Ken Burns Effect Algorithm-Functions

Wally Rodriguez wlists at
Mon May 15 19:19:44 EDT 2006

The Ken Burns effect, as used in other applications, has to be  
calculated on a sub-pixel level so that it does not look jerky, that  
is because some combinations of start point, size and speed could  
yield sizes or motion that can't be rounded to one pixel.

There must be a way to do this smoothly on the mac, since the screen  
saver does it, but I couldn't even start to tell you how.


On May 14, 2006, at 11:16 PM, Sivakatirswami wrote:

>  but one pixel motion is jerky... though I've not see that move  
> from point A to point B is much smoother.  (I have yet to see Rev  
> move animation run as smoothly as other animation... but I maybe  
> need rub my eyes and check I the only one that senses  
> Rev's move cmd to be  a bit "jerky" or is it just my video card?)
> Insights?

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