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fractint-digest         Monday, June 28 1999         Volume 01 : Number 398




----------------------------------------------------------------------

Date: Wed, 23 Jun 1999 22:10:51 -0700
From: "Mike and Linda Allison" <[e-mail]>
Subject: (fractint) Just testing

Just testing!  Linda

http://www.fractalus.com/gumbycat/gallery1.html (New 05-27-99)
http://www.geocities.com/Paris/5519/gallery1.html (last update 02-27-99)
http://www.toptown.com/innercircle/gumbycat/index.html (last update
04-30-99)

Recent Usenet postings:
http://www.fractalus.com/gumbycat/abpf.html (last update 05-02-99)

Copyright, all rights reserved:
http://www.fractalus.com/gumbycat/copyright.html



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Date: Fri, 25 Jun 1999 21:50:34 -0700
From: kathy roth <[e-mail]>
Subject: (fractint) new computer

Hi, I am thinking of purchasing a new computer
and want to choose one that would be best for
running Ultrafractal and Fractint.  If you think
that this is not of general interest, please e-mail
me privately.
1) Is it still important to get a Pentium chip?
2) I followed the discussions about the video
    cards with some trepidation.  I understand that some of
    the people on the Ultrafractal list are unable to run
    Fractint.  I definitely want to continue to be able to run
    Fractint and some old DOS games.  What do you think
    the best video card is?   Should I buy a system with
    the video card I want or get the best system at the price and
    replace the video card?  I can download a new driver if needed
    but am a novice at this and have limited interest in fooling
    around with compatibility problems.
3) What do you think the best way is to back up data.
    I have a Syquest Sparq and find it really irritating to
   use, was thinking of getting a built-in Zip Drive.

Any other suggestions are welcome. TIA- Kathy


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Date: Sat, 26 Jun 1999 11:05:34 -0500
From: "Damien M. Jones" <[e-mail]>
Subject: Re: (fractint) new computer

Kathy,

 - 1) Is it still important to get a Pentium chip?

Yes. Right now one of the best deals going is a Celeron processor, they are
cheap and very fast for fractals. AMD K6 still does not have the
floating-point performance which is crucial for fractal generation. The K7
may change that--maybe--but right now Pentium-II, -III, and Celerons are
good bets.

This is more important for UF than for FractInt at the moment, because UF
is more optimized for newer processors, but that will likely change with
the next release of FractInt.

 - I understand that some of the people on the Ultrafractal list are
 - unable to run Fractint.

Mainly because FractInt relies on the presence of VESA modes in newer cards
to access the higher resolutions. The very newest class of video cards tend
not to support VESA modes any more, because they're only important for DOS
apps, which are falling by the wayside. However, your games will likely
still run because they typically use a 640x480 mode, which is far more
widely supported than the higher-resolution modes.

 - 3) What do you think the best way is to back up data.
 -     I have a Syquest Sparq and find it really irritating to
 -    use, was thinking of getting a built-in Zip Drive.

Well, CDs aren't the most convenient thing to use for backing up data, but
the discs are fairly durable, they're fairly roomy, and they're dirt-cheap.
Even CD-RW discs are fairly cheap.

I have a ZIP drive (on several systems, in fact) and to be honest, it
doesn't take very many big fractals to fill them up. Especially the kind of
detailed fractals I like, which don't compress very well.

Damien M. Jones   \\
[e-mail]  \\  Fractalus Galleries & Info:
                    \\  http://www.fractalus.com/

Please do not post my e-mail address on a web site or
in a newsgroup.  Thank you.

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Date: Sat, 26 Jun 1999 12:21:21 -0500
From: David Kosokar <[e-mail]>
Subject: (fractint) 3d Mandelbrot?

Hello all!

Do any of you know where I could get a program (preferably a ray tracer)
that will make 3d pictures of the Mandelbrot set (both hypercomplex and
quaternion)?

What I mean is, suppose you took the original Mandel set, and cut out
just the black part. Now you rotate it along the Real axis, and create a
3d shape from this (this is called latheing in the raytracers I've
seen). This is the actual shape of the Quat fractal in three dimensions,
you can see this as you vary the parameters of the quat fractal.

If you have written anything like this, or know where I can find it,
please let me know!! TIA!

Dave

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Date: Sat, 26 Jun 1999 12:21:37 -0700
From: "Terry" <[e-mail]>
Subject: (fractint) House with Bomb Shelter and other ideas

Here is the web page for the bomb shelter house:

http://www.wooly.com/w1/160

Aloha.
                 Terry James Erickson , [e-mail]
                 http://www.pacifier.com/~krietor  ICQ  # 20903556
                 Earth Embassy Foundation
                 http://www.pacifier.com/~peri


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Date: Sat, 26 Jun 1999 14:34:00 -0700
From: "Angela Wilczynski" <[e-mail]>
Subject: Re: (fractint) new computer

Kathy...

Many of the questions you asked went through my mind when I got my new puter last
year.

1.  Based on the feedback from this group, I got a Matrox Millenium card and am
delighted with it. It not only runs fractint beautifully, but drives my 19" monitor
to perfection.
2.  As far as getting the best system/price, I'd suggest chatting with the folks at
Micron.  My first puter was a Micron and their support is outstanding and their
prices are most competitive.  They may very well be able to accomodate the video card
swap for you at a nominal price.  My son put together my current system and I know I
paid a premium for not going Micron. www.micron.com
3.  While there are faster/bigger storage media than zip drives these days, I like
mine.  I have an internal zip drive hooked to an scsi port on the motherboard.  Data
transfer is quite fast enough for me.  The advantage of a zip drive is that I can
take the zip disk to work where we have zip drives as a standard. If you buy a Micron
system a zip drive will be included.

take care

Angela aka wizzle

kathy roth wrote:
>
> Hi, I am thinking of purchasing a new computer
> and want to choose one that would be best for
> running Ultrafractal and Fractint.  If you think
> that this is not of general interest, please e-mail
> me privately.
> 1) Is it still important to get a Pentium chip?
> 2) I followed the discussions about the video
>     cards with some trepidation.  I understand that some of
>     the people on the Ultrafractal list are unable to run
>     Fractint.  I definitely want to continue to be able to run
>     Fractint and some old DOS games.  What do you think
>     the best video card is?   Should I buy a system with
>     the video card I want or get the best system at the price and
>     replace the video card?  I can download a new driver if needed
>     but am a novice at this and have limited interest in fooling
>     around with compatibility problems.
> 3) What do you think the best way is to back up data.
>     I have a Syquest Sparq and find it really irritating to
>    use, was thinking of getting a built-in Zip Drive.
>
> Any other suggestions are welcome. TIA- Kathy
>
> --------------------------------------------------------------
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> Post Message:   [e-mail]
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------------------------------

Date: Sat, 26 Jun 1999 16:06:44 -0700
From: "Terry" <[e-mail]>
Subject: (fractint) Fractint on AMD

My machine is an AMD 5x86.
Fractint seems to perform ok as far as I can tell. It's lots of fun.
What will a Pentium chip do better?
I have read statements from people on this list to the effect that the
floating point capability of the Intel chips is a great advantage in running
Fractint.
I wonder what I am missing out on. Since I have been leaning towards the AMD
K-6 for my new computer, and I really like using Fractint, what's the
advantage that the Pentium and Celeron chips have?

Also,  I am experiencing a little difficulty with Fractint. Let me try to
describe.
I run Fractint and start the color-cycling.
I hit pause, or save, and it works, but when I end up at the main menu, and
select "return to fractal," or whatever,  the program seems to freeze up. I
have to start over. I'm not a very experienced user (of Fractint or Windows
95) but I am a very quick learner.
I'm not sure I gave enough information for someone to solve my problem on
this second question,  but I'm sure someone will have an answer for the
first.
thank you very much.
                 Terry James Erickson , [e-mail]
                 http://www.pacifier.com/~krietor
                 Earth Embassy Foundation
                 http://www.pacifier.com/~peri
PS   I believe I accidentally emailed a URL for a web page about a house
with a bomb shelter for sale. Since it has not much to do with fractal art,
I apologize for the mistake.


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------------------------------

Date: Sat, 26 Jun 1999 18:40:08 -0500
From: "Damien M. Jones" <[e-mail]>
Subject: Re: (fractint) Fractint on AMD

Terry,

 - My machine is an AMD 5x86.
 - Fractint seems to perform ok as far as I can tell. It's lots of fun.
 - What will a Pentium chip do better?

The Pentium (and -II, and -III) FPU typically performs basic arithmetic
operations in one cycle, instead of two to four. Furthermore, the processor
can move floating-point values between registers in parallel with those
arithmetic operations. This makes for enormously improved throughput.
Benchmarks I've run show that the Pentium is 2-3 times faster at sustained
floating-point operations than an AMD K6, at the same clock speed. This is
the case even when both processors run code optimized specifically for them.

 - I wonder what I am missing out on.

Only speed. And for most things, the AMD processors are just fine. Fractals
happen to be a unique burden for a processor, though, and Intel x86
processors have a better FPU.

Damien M. Jones   \\
[e-mail]  \\  Fractalus Galleries & Info:
                    \\  http://www.fractalus.com/

Please do not post my e-mail address on a web site or
in a newsgroup.  Thank you.

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------------------------------

Date: Sat, 26 Jun 1999 21:18:22 -0400
From: davides <[e-mail]>
Subject: (fractint) 3 julia pars

Three julias from the default Mandelbrot.

New_Dimension300   { ;  (c) David Shanholtzer Jun 26, 1999 t=0:00:17.47
                     ;  P200 MMX 1024x768
                     ; Another julia
  reset=1960 type=julia passes=t
  center-mag=-2.77556e-016/2.22045e-016/0.8130081/1/0/42.197
  params=0.3699901320299772/0.3148632294132985 float=y maxiter=7500
  inside=maxiter
  colors=000<26>005K0K<34>lbumdwmdw<38>H3V000F1TE0SA20<10>yhW<22>A20111222\
  UUY<29>xxvzzwyyv000<20>111MC7<6>yhW<14>A20000<31>0bi orbitdelay=2
  }


New_Dimension303   { ;  (c) David Shanholtzer Jun 26, 1999 t=  0:05:36.14
                     ;  P200 MMX 1024x768
                     ; A dusty rose julia spiral
  reset=1960 type=julia passes=t
  center-mag=0.163363/0.484302/5.978001/1/0/42.197
  params=0.3699901320299772/0.3148632294132985 float=y maxiter=7500
  inside=maxiter decomp=200
  colors=000YC`<5>lLq<30>G1IE0GF0G<29>jAglBhlBh<31>H1J71DF1HE0G<2>G0IH1JJ1\
  K<23>mAmK00<39>w65w65v65<68>E0G<6>VAZ orbitdelay=2
  }

New_Dimension304   { ;  (c) David Shanholtzer Jun 26, 1999 t=  0:06:47.11
                     ;  P200 MMX 1024x768
  reset=1960 type=julia passes=t
  center-mag=0.210974/0.415816/6.441811/1/0/42.196
  params=0.3699901320299772/0.3148632294132985 float=y maxiter=7500
  inside=maxiter decomp=200
  colors=000YC`<5>lLq<30>G1IE0GF0G<29>jAglBhlBh<31>H1J71DF1HE0G<2>G0IH1JJ1\
  K<23>mAmK00<39>w65w65v65<68>E0G<6>VAZ
  }


[e-mail]
[e-mail]
Back up my hard drive?
How do I put it in reverse?

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------------------------------

Date: Sun, 27 Jun 1999 14:40:35 +1200
From: "Morgan L. Owens" <[e-mail]>
Subject: Re: (fractint) 3d Mandelbrot?

At 12:21 26/06/99 -0500, you wrote:
>Hello all!
>
>Do any of you know where I could get a program (preferably a ray tracer)
>that will make 3d pictures of the Mandelbrot set (both hypercomplex and
>quaternion)?
>
Easy, POV-Ray!

http://www.povray.org/


> This is the actual shape of the Quat fractal in three dimensions,
>
Actually, the Quat fractal is four-dimensional - the three-dimensional
appearances are only a tiny slice of the whole thing.

But then, in POV-Ray you can write animations and vary the parameters over
time.

Morgan L. Owens



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------------------------------

Date: Sat, 26 Jun 1999 20:38:01 -0700
From: Ken Childress <[e-mail]>
Subject: Re: (fractint) Fractint on AMD

Terry,

>My machine is an AMD 5x86.
>Fractint seems to perform ok as far as I can tell. It's lots of fun.
>What will a Pentium chip do better?
>I have read statements from people on this list to the effect that the
>floating point capability of the Intel chips is a great advantage in running
>Fractint.
>I wonder what I am missing out on. Since I have been leaning towards the AMD
>K-6 for my new computer, and I really like using Fractint, what's the
>advantage that the Pentium and Celeron chips have?

I had an AMD K6 166 MHz.  I swapped it for a Pentium MMX 233 MHz.  I
got about a 2.5 increase in performace by the swap.  From my experience
and what I've read, avoid non-Intel chips if you are concerned about
floating point performance.  The latest AMD chip may be an exception,
but I'm not up on that one.

The Celeron is a good bargin.  With today's prices, a Celeron or a
Pentium II should be had for a pretty good bargin.



Ken...



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Date: Sun, 27 Jun 1999 00:36:38 -0500
From: David Kosokar <[e-mail]>
Subject: Re: (fractint) 3d Mandelbrot?

Sorry about the misconception of the quat fractal, I was aware of it's
4d nature, but the "solid Mandelbrot" is what I'm interested in.

I've used Pov-ray for years, and while I love it, the only fractals it
does are juila sets, not the Mandelbrot set formulas. Is there some way
to modify it (without learning c++) to do what I'm talking about?

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Date: Sun, 27 Jun 1999 20:14:08 +0100
From: "cm.davies" <[e-mail]>
Subject: (fractint) Fractint and capturing colour cycling

This is a multi-part message in MIME format.

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Content-Type: text/plain;
    charset="iso-8859-1"
Content-Transfer-Encoding: 7bit

Hi,  I wish to capture or output some of the colour cycling features of
Fractinit so I can use the animations or avi's in some larger graphic
arrangements that involve other clips from other programs.  Any ideas anyone

Chris Davies
07971 911265



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    charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>

<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D'"MSHTML 4.72.3110.7"' name=3DGENERATOR>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><SPAN class=3D160201017-26061999><FONT color=3D#000000 =
face=3DTahoma=20
size=3D3>Hi,  I wish to capture or output some of the colour =
cycling features=20
of Fractinit so I can use the animations or avi's in some larger graphic =

arrangements that involve other clips from other programs.  Any =
ideas=20
anyone</FONT></SPAN></DIV>
<DIV> </DIV>
<DIV><FONT color=3D#000000 face=3D""><FONT size=3D3><FONT=20
face=3D"Photina Casual Black">Chris Davies</FONT></FONT></FONT><FONT=20
face=3D"Photina Casual Black"><FONT size=3D3></FONT></FONT></DIV>
<DIV><FONT color=3D#000000 face=3DArial size=3D2><FONT face=3D"Photina =
Casual Black"=20
size=3D3>07971 911265</FONT></FONT></DIV>
<DIV align=3Dcenter> </DIV>
<DIV> </DIV></BODY></HTML>

- ------=_NextPart_000_0001_01BEC0D9.9D16B5A0--


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Date: Sun, 27 Jun 1999 18:25:18 -0700
From: "Mike and Linda Allison" <[e-mail]>
Subject: (fractint) Off Topic: New EMail Address

Gumbycat is leaving Netcom.  Our new email address is:

[e-mail]

Thanks, all!
Mike and Linda A


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Date: Mon, 28 Jun 1999 00:57:02 -0600
From: Phil McRevis <[e-mail]>
Subject: Re: (fractint) Fractint and capturing colour cycling

[Just a short note first: in the future, please just send your message
as plain text; no need to duplicate it with a second version in HTML
which lots of people on this list won't be able to receive anyway
because they don't use MIME capable mailers.]

In article <000001bec0d1$3b524da0$[e-mail]>,
    "cm.davies" <[e-mail]>  writes:

> Hi,  I wish to capture or output some of the colour cycling features of
> Fractinit so I can use the animations or avi's in some larger graphic
> arrangements that involve other clips from other programs.  Any ideas anyone

I think you can do this sort of animation (color cycling) with some of
the titling/video editing packages, but I'm not familiar with them.
You might check out web pages for video editing packages like adobe
premiere.
- --
<http://www.xmission.com/~legalize/>    Legalize Adulthood!
    ``Ain't it funny that they all fire the pistol,
      at the wrong end of the race?''--PDBT
[e-mail]    <http://www.eden.com/~thewho>

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Date: Mon, 28 Jun 1999 00:59:34 -0600
From: Phil McRevis <[e-mail]>
Subject: Re: (fractint) 3d Mandelbrot?

In article <[e-mail]>,
    David Kosokar <[e-mail]>  writes:

> What I mean is, suppose you took the original Mandel set, and cut out
> just the black part. Now you rotate it along the Real axis, and create a
> 3d shape from this (this is called latheing in the raytracers I've
> seen).

Let me see if I understand what you're asking... you want to make what
is essentially a surface of revolution with the profile determined by
the M-set?  Since M is symmetric around the real line, this is
reasonable.  You could try rendering M as a bitmap and then generating
a point list from the outline of the image, using the point list to
define a polyline profile which is in turn used to define a surface of
revolution.  I'm not up on what raytracers support polyline
descriptions of such surfaces, so I can't recommend a particular
package.
- --
<http://www.xmission.com/~legalize/>    Legalize Adulthood!
    ``Ain't it funny that they all fire the pistol,
      at the wrong end of the race?''--PDBT
[e-mail]    <http://www.eden.com/~thewho>

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Date: Mon, 28 Jun 1999 01:03:19 -0600
From: Phil McRevis <[e-mail]>
Subject: Re: (fractint) new computer

In article <[e-mail]>,
    kathy roth <[e-mail]>  writes:

> 3) What do you think the best way is to back up data.
>     I have a Syquest Sparq and find it really irritating to
>    use, was thinking of getting a built-in Zip Drive.

Backup is a hard question to answer.  Since most people don't buy
decent backup peripherals, they haven't yet achieved the same economy
of scale that disk drives have.  A zip drive isn't bad for backup up
text files and things like that, but as Damien pointed out a few fat
fractals will fill it up.  Are you planning on backing up your entire
hard drive?  HD space is incredibly cheap right now, so you can end up
with a huge backup task if you plan on doing full backups and
incremental backups on a schedule.  (If you consider everything on the
HD volatile and only backup select files, then a ZIP is fine.)  For
the larger (> 2-3 GB) drives, a ZIP requires too many disks to backup
the entire thing, even with compression.  A JAZ drive is getting
closer, but tape seems to be the only thing that can do it
conveniently.  Do you want to babysit the machine during a full
backup waiting around to feed it new media?  A tape drive will let you
put the media in the drive and start the backup and leave it alone
until it completes.  An interesting alternative that's becoming viable
with faster net connections is contracting for online archival of data
for a monthly fee.  PC magazine had an article about these within the
last year or so, I believe.
- --
<http://www.xmission.com/~legalize/>    Legalize Adulthood!
    ``Ain't it funny that they all fire the pistol,
      at the wrong end of the race?''--PDBT
[e-mail]    <http://www.eden.com/~thewho>

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Date: Mon, 28 Jun 1999 10:55:17 -0700
From: "Dave Hershey (Volt Computer)" <[e-mail]>
Subject: RE: (fractint) new computer

Networking is the approach I use here at work.  If I was getting a new
machine and I wanted a good quantity of data from the old machine on the new
one, I'd probably network the two machines together on a peer-to-peer and
simply copy down the files from a share on the old machine.

- --Dave.


- -----Original Message-----
From: Phil McRevis [mailto:[e-mail]]
Sent: Monday, June 28, 1999 12:03 AM
To: [e-mail]
Subject: Re: (fractint) new computer



In article <[e-mail]>,
    kathy roth <[e-mail]>  writes:

> 3) What do you think the best way is to back up data.
>     I have a Syquest Sparq and find it really irritating to
>    use, was thinking of getting a built-in Zip Drive.

Backup is a hard question to answer.  Since most people don't buy
decent backup peripherals, they haven't yet achieved the same economy
of scale that disk drives have.  A zip drive isn't bad for backup up
text files and things like that, but as Damien pointed out a few fat
fractals will fill it up.  Are you planning on backing up your entire
hard drive?  HD space is incredibly cheap right now, so you can end up
with a huge backup task if you plan on doing full backups and
incremental backups on a schedule.  (If you consider everything on the
HD volatile and only backup select files, then a ZIP is fine.)  For
the larger (> 2-3 GB) drives, a ZIP requires too many disks to backup
the entire thing, even with compression.  A JAZ drive is getting
closer, but tape seems to be the only thing that can do it
conveniently.  Do you want to babysit the machine during a full
backup waiting around to feed it new media?  A tape drive will let you
put the media in the drive and start the backup and leave it alone
until it completes.  An interesting alternative that's becoming viable
with faster net connections is contracting for online archival of data
for a monthly fee.  PC magazine had an article about these within the
last year or so, I believe.
- --
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    ``Ain't it funny that they all fire the pistol,
      at the wrong end of the race?''--PDBT
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Date: Mon, 28 Jun 1999 17:39:31 -0500
From: David Kosokar <[e-mail]>
Subject: Re: (fractint) 3d Mandelbrot?

Well, the example given was just to convey the shape that I am
interested in. I don't really want to create the shape from the outline
of a processed image. I'd like to use a function like the julia fractal
in Pov-ray, which does the analogous thing with julia sets. I would like
to give it a parameter (or 2 or 3) and have it give me the shape,
rendered and shaded. Anyone out there know of anything like that?

I apologize if this is off topic. I just thought you folks would have
more exposure to things of this nature.

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Date: Tue, 29 Jun 1999 01:56:31 EEST
From: Dimosthenis Baikos <[e-mail]>
Subject: (fractint) Multifractals ?

Hi all,

Have anyone heard the term "multifractal"? (I have no idea what this might
be).

If anyone is interested on conferences on nonlinear dynamical systems and
chaos (fractals are considered as well), here is an URL:

http://www.chaos-schools.gr/

Unfortunately this is out of date. However this school/conference is
organized once per year, so you coud register next year (if you wish)! (
:-)) )

Dimosthenis Baikos


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Date: Tue, 29 Jun 1999 01:56:31 EEST
From: Dimosthenis Baikos <[e-mail]>
Subject: (fractint) Multifractals ?

Hi all,

Have anyone heard the term "multifractal"? (I have no idea what this might
be).

If anyone is interested on conferences on nonlinear dynamical systems and
chaos (fractals are considered as well), here is an URL:

http://www.chaos-schools.gr/

Unfortunately this is out of date. However this school/conference is
organized once per year, so you coud register next year (if you wish)! (
:-)) )

Dimosthenis Baikos


______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com

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Date: Mon, 28 Jun 1999 19:16:38 -0400
From: "Phil DiGiorgi" <[e-mail]>
Subject: Re: (fractint) new computer

Hi Kathy,

I just did a processor and motherboard upgrade, going from a K6-233 to a
PIII-450.   The difference is amazing.   Generation times in Fractint are
about 2.5 times faster, while Ultrafractal has speeded up by more than _4
times(!)_ in many cases.   I think going from 64m to 256m of PC100 ram had
alot to do with that, also.

For video, I think you are safe with either a Matrox Millenium card or any of
the cards based on the Riva TNT chip.   These are very popular and have Vesa
support built in.   I use a Viper 550, and it works great for me.

For backups, I use a second hard drive and a "drive image" program.   There
are some disadvantages to this, but it is fast, fast, fast, and the program I
am using (from Powerquest) allows you to restore individual files as well as
whole partitions.   It also supports spanning Zip or Jaz disks.

Good luck,
Phil D.


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Date: Mon, 28 Jun 1999 17:23:02 -0600
From: Phil McRevis <[e-mail]>
Subject: Re: (fractint) 3d Mandelbrot?

In article <[e-mail]>,
    David Kosokar <[e-mail]>  writes:

> [...] I would like
> to give it a parameter (or 2 or 3) and have it give me the shape,
> rendered and shaded. Anyone out there know of anything like that?

Yep, I know what you mean.  Having the primitive built into the ray
tracer would be best.  However, if that isn't available you have the
choice of programming something that does it, or using the hack I
described ;-).
- --
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      at the wrong end of the race?''--PDBT
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Date: Mon, 28 Jun 1999 17:28:54 -0600
From: Phil McRevis <[e-mail]>
Subject: Re: (fractint) new computer

In article <009801bec1bc$4868e940$50a943ce@phild>,
    "Phil DiGiorgi" <[e-mail]>  writes:

> For backups, I use a second hard drive and a "drive image" program.   There
> are some disadvantages to this, but it is fast, fast, fast, and the program I
> am using (from Powerquest) allows you to restore individual files as well as
> whole partitions.   It also supports spanning Zip or Jaz disks.

Yeah, that's a good idea.  If you already have a SCSI interface on
your PC, it might be easier to have the 'backup' drive be a SCSI drive
that you can attach by a cable so you don't have to open the case.
PC magazine has reviewd drive image programs
<http://www.zdnet.com/products/stories/reviews/0,4161,397228,00.html>
- --
<http://www.xmission.com/~legalize/>    Legalize Adulthood!
    ``Ain't it funny that they all fire the pistol,
      at the wrong end of the race?''--PDBT
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Date: Mon, 28 Jun 1999 18:43:20 -0500
From: "Damien M. Jones" <[e-mail]>
Subject: Re: (fractint) new computer

Phil, Kathy,

 - For video, I think you are safe with either a Matrox Millenium card or
 - any of the cards based on the Riva TNT chip.

LOL, I didn't even think of that. I have a Riva TNT card right now, 16M
AGP, and the card I had before that was an 8M Matrox Millennium. The
Millennium was a great card, did 1152x864x16 at a really nice refresh rate,
and had a razor-sharp image.

Then I got my Riva TNT board, I was really worried about image quality, but
this has a great, sharp image and does 1152x864x32 faster than the
Millennium would do the 16-bit depth. And, of course, it has
mind-bogglingly cool 3D performance.

Both cards worked fine with FractInt.

Damien M. Jones   \\
[e-mail]  \\  Fractalus Galleries & Info:
                    \\  http://www.fractalus.com/

Please do not post my e-mail address on a web site or
in a newsgroup.  Thank you.

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Date: Tue, 29 Jun 1999 13:57:54 +1200
From: "Morgan L. Owens" <[e-mail]>
Subject: Re: (fractint) 3d Mandelbrot?

At 17:23 28/06/99 -0600, you wrote:
>
>In article <[e-mail]>,
>    David Kosokar <[e-mail]>  writes:
>
>> [...] I would like
>> to give it a parameter (or 2 or 3) and have it give me the shape,
>> rendered and shaded. Anyone out there know of anything like that?
>
>Yep, I know what you mean.  Having the primitive built into the ray
>tracer would be best.  However, if that isn't available you have the
>choice of programming something that does it, or using the hack I
>described ;-).
>
If you don't mind a blocky low-res version, you could perhaps fool POV-Ray
into doing it (at least, if you have version 3, preferably 3.1), by using
the _definition_ of the Mandelbrot set: generate a three-dimensional array
of quaternion Julia sets, intersect each one with a small cube centred at
the origin, and then stack up the cubical pieces.

This recognises the fact that the origin is inside the Julia set iff the
set is connected; and the Mandelbrot set represents the set of all
connected Julia sets.

I don't know how slow this technique will be - unable to find the time yet
to write the POV-Ray code - but I guess it probably wouldn't be as slow as
it sounds; not much slower than an appropriate primitive, in fact, once
parsing is out of the way.

Then again, for C programmers the job of implementing an M-Set primitive
shouldn't be insurmountable - the code is virtually all there already.

Morgan



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End of fractint-digest V1 #398
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