[Fluxus] Hi all
lucas samaruga
samarugalucas at gmail.com
Wed Sep 10 11:38:47 PDT 2008
Thanks for the comments
I have to be more careful.
I thought that it might be good to have a mechanism that can remedy such
errors in real time.
Greetings
Lucas
2008/9/10, Claude Heiland-Allen <claudiusmaximus at goto10.org>:
>
> lucas samaruga wrote:
>
>> (define (render n f)
>> (cond ((not (zero? n))
>>
>
> Small point, what happens if you have n < 0 ?
>
> (build-sphere 10 10)
>>
>
> [snippy]
>
> (render (- n 1) f)
>> (render (- n 1) f)
>> (render (- n 1) f)
>> (render (- n 1) f)
>> (render (- n 1) f)
>> (render (- n 1) f)
>>
>
> [snippy]
>
> At each level you have a sphere, and also 6 of the next level down. So as
> you increase the level, you have 6x the number of spheres, which goes up
> pretty quickly.
>
> ;(render 10 4) ; for a hang
>>
>
> This gives you over 6^10 spheres, which is quite a lot (more than 60
> million)!
>
> So not surprising you get problems :)
>
> (for comparison, I have a fractal I wrote in C, with "only" 1 million
> single points, and that takes about 1/2 a second per frame to draw).
>
>
> Claude
> --
> http://claudiusmaximus.goto10.org
>
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