Path: utzoo!attcan!telly!lethe!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!uunet!munnari.oz.au!csc.anu.edu.au!manuel!ccadfa!prolix!dac
From: dac@prolix.ccadfa.oz.au (Andrew Clayton)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Speeding up fractals in assembly
Message-ID: <186640bb.ARN00529@prolix.ccadfa.oz.au>
Date: 21 Dec 90 11:33:47 GMT
References: <86849@tut.cis.ohio-state.edu>
Reply-To: ccadfa.cc.adfa.oz.au!Uprolix!Dac
Followup-To: comp.sys.amiga.tech
Distribution: comp.sys.amiga.tech
Organization: I'm not an Organization - I'm a person!
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In article <86849@tut.cis.ohio-state.edu>, gregory neil berenfield writes:

> and can generate a nice looking mandlebrot but what I'm after is SPEED!

Elusive as it may be! Even with my GVP 3001, at 30Mhz, things
aren't quick enough for me.

> Firstly, my system is an A3000 68030/68882 25Mhz. I have a shareware copy
> of MandFXP by Cybersoft I believe, and that sucker can really splat
> mandelbrots in under 2 seconds! 

CygnusSoft. The guys who wrote Cygnus Ed Professional, Release 2,
which I'm using right NOW, and it's G_R_E_A_T (Marketted by ASDG
Inc.) After using a public access UNIX machine to _attempt_ to
get onto USEnet, and having to use Vi, I cannot adequately explain
the enjoyment value that I get out of using CED compared to being
relegated to Vi!

(Go on, Usenetters, call me a heathen! :-)

I used MandelFXP to generate an 'AmigaMovie' of a Mandelbrot - on
a REALLY SMALL 1" square of the screen, down to 1/128,000,000th
of the screen (I was using 5 words of precision at that time!).
It looked sorta neat, but at more than 4 frames a second, it was
just visual noise, if you get my drift.

I wrote to ASDG, asking for more information (like, will they
ever get around to MandelMovie) but got zippo response.
Cygnussoft aren't contactable by phone. :-(

> Mine is not nearly as fast. 

Check out a program called MandelBz, by Nico Francois, the guy
who wrote PowerPacker. It's pretty quick, and uses a SECAM way
(Something Essentially Contrary to the American Method :^) of
doing Mandelbrots, by doing the edges first, and then area fills.
Pretty quick, and produces some VERY nice pictures. Best of all,
it uses PAL, whereas MandelFXP uses Never Twice Same Colour, and
the ugly 200 line screen.

Good luck with your project: I think Mandelbrot generators have
been done to death though.

> anonymous: Who am I?      |  O.S.U.  CIS

Fair enough.

Dac
   _l _  _  Andrew Clayton.      I post .       ccadfa.cc.adfa.oz.au!Uprolix!dac
  (_](_l(_  Canberra. Australia.       . . I am.

Note: I cannot send or recieve MAIL to sites outside of Australia. Sorry.