Warp wrote:

>   You'd have hard time creating that animation with POV-Ray (at least without
> using external programs or external precalculated image maps). That's because
> in that animation the color rings of the different iterations have been
> interpolated, creating smooth color gradients. POV-Ray cannot do this.
> 
>   Some fractal programs, such as xaos, support that, and that animation
> may well have been done with it.

More exactly: The colouring algorithm makes use of additional data from 
the orbit to produce a seamless colour gradient. (I.e., it doesn't just 
blur the lines in the colour gradient, it actually adds additional new 
detail - much like antialiasing isn't just blurring.)

At any rate, rerendering the entire frame a few thousand times is rather 
inefficient. There are all kinds of tricks you can use where you reuse 
pixels from the previous frame to vastly reduce the total time required 
for simple zooms like this.

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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