[PD] Mandlebrot Landscape Generator ?

[day 5]

Mathieu,

Thank you for your well informed response.

I'll be sure to follow up on #dataflow IRC to ask more of your 
subjective, experienced input.


./d5

On Jan 30, 2006, at 12:48 AM, Mathieu Bouchard wrote:

> On Sat, 28 Jan 2006, day 5 wrote:
>
>> I was wondering in what ways is it possible to calculate Mandlebrot 
>> sets
>> using Gem/Pd/PDP/GridFlow/etc/etc ?
>
> In GridFlow, the technique I use is to apply a pixel-remapping 
> repeatedly
> using [#remap_image]. The big downside of it is that rounding errors 
> will
> show because pixel coördinates are always whole. However there are 
> several
> upsides, one being that it's incremental and that each increment is 
> rather
> quick to compute. Classic Julia/Mandelbrot fractals are usually 
> computed
> by repeating a formula on each point until the point gets kicked out 
> of a
> circle, and then counts how many repetitions it took. I use one 
> repetition
> per displayed frame, and the picture refines itself over time. At each
> increment I can feed in something different, e.g. I may inject live 
> video
> into the fractal.
>
> You can find out about it in gridflow/pd_examples/feedback_fractal.pd,
> which was the first real GridFlow patch. (I have other more convincing
> fractal patches but I've not released them.)
>
> My technique is neither Julia nor Mandelbrot, even though it uses
> the same formula f(z)=z*z+c, because it uses it in a different way.
>
> AFAIK Ben Bogart uses the same technique and/or the same formula but 
> with
> GEM. However I haven't closely compared.
>
>  _ _ __ ___ _____ ________ _____________ _____________________ ...
> | Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju
> | Freelance Digital Arts Engineer, Montréal QC Canada
>