Le Thu, 25 Sep 2008 13:55:37 -0400, Jos leys a modifié des petits morceaux
de l'univers pour nous faire lire :


> I have a question on how the Julia Fractal object is created. This is
> built in to Povray, so I have no way of studying how it is done. 

Well, you can always use the source, so the previous assertion is not 
right. Now, it's 4D math.. that's another story to understand the code.

> I want
> to draw another (fractal) object, an object that depends on an
> iteration. Points in space will belong to this object if they do not
> leave a prescribed bounding volume after a certain number of iterations
> using a specific formula. Can somebody point me into the right
> direction? Thanks..

Patching is one way... but first have a look at the julia documentation, 
maybe your formula is already part of the 18 provided for hypercomplex.
If not, add it.
BTW, what is your specific formula ? 
would it matter if your bounding volume is not a 4D-4-units sphere ?

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