1. Mandlebrot program

If anyone has any interest I've written a short  mandlebrot
(fractal) generator. I figured someone might be interested in finding
ways to help me speed it up, I've made some speedups (it's about 2 to 3
times faster than the original) and in helping me figure out why it
doesn't quite look right. (it's close, but not quite)

        Of course if you just want to play with it most of the 'setings'
are in global constants at the top of the file.
        I uploaded it at:

all you have to do is save it with the .ex extension instead of .txt
(geocities won't let me u/l it with .ex for an extension)

                Kasey
p.s. it'd probably be pretty easy to get julia sets out of it with minor
editing.

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2. Re: Mandlebrot program

Kasey wrote:
>
> If anyone has any interest I've written a short  mandlebrot
> (fractal) generator. I figured someone might be interested in finding
> ways to help me speed it up, I've made some speedups (it's about 2 to 3
> times faster than the original) and in helping me figure out why it
> doesn't quite look right. (it's close, but not quite)

o.k. I've fixed this problem, the distortion was being created by some
code I hadn't completely eliminated when I inlined what was a function
call to speed the program up.



>         Of course if you just want to play with it most of the 'setings'
> are in global constants at the top of the file.
>         I uploaded it at:
>
this hasn't cahnged:

 http://www.geocities.com/Area51/Vault/7707/m_brot.txt


> all you have to do is save it with the .ex extension instead of .txt
> (geocities won't let me u/l it with .ex for an extension)
>
>                 Kasey
> p.s. it'd probably be pretty easy to get julia sets out of it with minor
> editing.


        it also tells you how long it took to generate the image on your
machine(I don't remember if that was in the code when I upped it last
night, but it's there now). I'm curious as to how fast it runs on other
machines. it takes 2 minutes 41 seconds at 800x600 with a max of 240
itterations per point on mine (amd 5x86-133 (speed <p90 but >p83 w/o
mmx) w/16-megs) while running it as a dos prog under win95.


                                        Kasey

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3. Re: Mandlebrot program

>machines. it takes 2 minutes 41 seconds at 800x600 with a max of 240
>itterations per point on mine (amd 5x86-133 (speed <p90 but >p83 w/o
>mmx) w/16-megs) while running it as a dos prog under win95.


1 minute 5 seconds on my machine...
amd k-6 200mhz with 1 meg pipleine burst cache,32 megs sdram, 4 meg video
card, udma hd. (under win95 with a download going and 5 programs running
aprox.)

Monty in Oregon

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