The one I did actually uses a cos curve to scale it - it makes a 1x1 cube, 
the scales it by cos(2*pi*clock)+1 meaning we get a scale from 0 to 2 (by 
scale, I#m referring to ball placement, not whole object scale) In theory, 
mine _should_ loop nicely - it's just lots of frames so can't be posted 
easily... (and assuming I posted the right one of course.... :D)


> He made his job easier by having a single, looping, continuous motion. For 
> your image, you would need to go back and have the zooming motions start 
> and stop gradually. The rotating motion of the structure makes the 
> start/stop less noticeable, but we still perceive it at an almost 
> subconscious level.

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