kmac99 wrote:

> The first frame will have a radius of 1.05.  Is the second frame calculated
> using 1.05 * pow(1+X, frame_number) or is it 1.10?  I need the former,
> where the increase is based on the the last size.
> 
That's basic math :
Framenumber  value
0            1.05^0= 1
1            1.05^1= 1.05
2            1.05^2= 1.1025
3            1.05^3= 1.157625
and so on.
If you want the sphere to grow linearly, use a 
(1+frame_number*0.05)*base_radius. If you want exponential growth, use 
the pow formula.
Note that you cannot base one frame calculation from precedent frame 
parameters, unless you pass them from one frame to the other by a 
"hand-written" file (not very easy and prevents from recalculating part 
of the animation). Determining a formula available for the  entire 
animation is much more accurate.
Hope this helps.

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