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From: owner-fractint-digest@lists.xmission.com (fractint-digest)
To: fractint-digest@lists.xmission.com
Subject: fractint-digest V1 #454
Reply-To: fractint-digest
Sender: owner-fractint-digest@lists.xmission.com
Errors-To: owner-fractint-digest@lists.xmission.com
Precedence: bulk
fractint-digest Monday, March 13 2000 Volume 01 : Number 454
----------------------------------------------------------------------
Date: Sun, 12 Mar 2000 00:48:11 -0500 (EST)
From: Jim Muth <jamth@mindspring.com>
Subject: (fractint) FOTD, 12-03-00 (The Duke of Earl [5]) (c)
FOTD -- March 12, 2000 (Rating 5)
Fractal enthusiasts and visionaries:
I have named today's fractal picture "The Duke of Earl", though
I've totally forgotten the train of thought that led me to this
name. The image has little in common with that old Doo-Wop song
of the same name, so I doubt if the name came from there.
The expression calculated by the MandelbrotMix4 formula to
create today's image is (Z^1.25)-(Z^(-1.75))+(1/C). The parent
fractal of today's midget consists of a distorted M-set with a
smaller M-set NNE of it. Today's scene is located on the east
side of a larger midget, which is located out near the tip of
the negative tail of this smaller M-set.
Now that we know just where we are, it's time to reveal the good
news that the parameter file takes only 2-1/2 minutes to
complete. The download of the image file might be even faster
- -- you'll never know unless you try. That image file can be
found posted to the Usenet binary group:
<alt.binaries.pictures.fractals>
and to Paul's Web site at:
<http://home.att.net/~Paul.N.Lee/FotD/FotD.html>
The fractal weather today was unsettled, with heavy clouds and
occasional thunder-showers. The temperature of 50F (10C) was
too damp and chilly for the cats, who spent the day curled in
their beds.
My philosophical energies today were once again exhausted
replying to letters on the philofractal list. But I'll try
again tomorrow to get some philosophy composed in time for the
FOTD. Until next time, take care, and are fractals really for
real?
Jim Muth
jamth@mindspring.com
START 20.0 PAR-FORMULA FILE================================
The_Duke_of_Earl { ; time=0:02:36:34 SF5 on a P200
; Version 2000 Patchlevel 8
reset=2000 type=formula formulafile=critical.frm
formulaname=MandelbrotMix4 function=recip
center-mag=+0.12123691840599490/-0.14894804299248570\
/2.826772e+013/0.9997/-100.002/0.017
params=1/1.25/-1/-1.75/-2/0 float=y maxiter=1200
bailout=25 inside=0 logmap=90 symmetry=none
periodicity=10
colors=000D73<2>442Gkj<3>6IH3A9OS2LP2IO2FL2CH2<3>472\
252kOQ<3>ODEIABC88655GsH<8>7Q86M75J6<3>162sp6<8>WV4T\
T4RQ3<3>GH3`R5`R5`Q4<3>VQKTQOSQS<2>OQb<3>GlRErODwM<4\
>BsOBrOBrO<2>ApPAoPAmP<3>9gQ<3>FdNHZN<3>N_LO_KQ`K<3>\
V`IXUNYTRZMW_H_`Cc<3>ZVZYZYYcXYhV<3>WwRWzQ`wV<3>tkjy\
in7oiNxd<9>CzYBzYAzX<3>6zVIsLUqBnuh<3>byb_z`Xz_<3>Lz\
UIzSFzRDzQ<2>`z7<4>jzW<3>rzo<3>pzZozVozRozNpzKpzH<3>\
kzCjzBizAhz9<3>9z_1ze2zd<11>CzWDzVDzU<2>GzSGzSFzQ<3>\
CzMBzKBzJAzI2z49zH<5>5zA5z94z7<3>1z3wz9<13>Gz3
}
frm:MandelbrotMix4 {; Jim Muth
a=real(p1), b=imag(p1), d=real(p2), f=imag(p2),
g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j,
k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel):
z=k*((a*(z^b))+(d*(z^f)))+c,
|z| < l
}
END 20.0 PAR-FORMULA FILE==================================
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------------------------------
Date: Sat, 11 Mar 2000 21:54:45 -0800 (PST)
From: Jon Noring <noring@netcom.com>
Subject: (fractint) Re: [fractal-art] A question on museum-quality fractal art prints
Also sprach Kerry Mitchell:
>The "old" ways of Ilfochrome, Iris, and Lambda are still with us, and the
>photographic methods (Ilfochrome and Lambda) appear to be the more popular
>for high quality prints, from what I've seen. I tend to prefer Ilfochrome
>slightly over Lambda, but it's very close. I've heard that archival
>giclee inks are around which will rival an Ilfochrome print for longevity,
>but I haven't seen any such prints.
The problem with the longer-life ink prints is that the inks typically
are less saturated, so you trade off brilliance for life. This is less
of an issue with photographic prints.
Many fractal images are meant to be saturated and brilliant, and unless
one uses fluorescent inks (which have a very short life), photographic
prints are the best way to render these images. Not like viewing on an
RGB monitor, but much better than inks can do.
>Janet Preslar and I have written a tutorial on printing fractals, which
>can be found here:
>
>http://www.parkenet.org/jp/print.html
>
>It discusses both the high end, museum quality prints, and the lower end,
>too.
I visited it and it is full of good information. However, I am surprised you
left out the LightJet, the direct competitor to the Durst Lambda. The
LightJet, if it is still in business, as of two years ago had slightly higher
resolution than the Durst Lambda and was specially calibrated to run with
Ilfochrome! Ilfochrome normally has contrast problems, but in the LightJet
the contrast issues are rendered moot -- and the colors can be very accurate
to what one sees on a monitor. There are a few labs that use the LightJet
with Ilfochrome, and I hope soon to submit a test or two. (I think it is
possible, too, that some places may be using Ilfochrome on the Durst Lambda).
Other important issues are mounting and lamination, which I won't get into
here. Suffice to say, though, that properly mounting a glossy Ilfochrome
on 1/8" aluminum plate is spectacular -- orange peel is almost non-existant,
and aluminum makes a better substrate than gatorfoam and similar mounting
materials, no matter how carefully the mounting is done.
Btw, I've made many 8x10 Kodak LVT positive transparencies, and this is an
excellent way to go. Replicolor Labs in Salt Lake City only charges $75
for an 8x10" positive transparency onto Fuji Provia film (and $55.00 for a
4x5). Just send them an 18432x13824 image for the 8x10, specify res80 (2032
dpi) and they'll make the trans. Their LVT can also do res120 (3048 dpi) but
cannot do so at 8x10, but can on a 4x5 (I've worked out the best image
resolution for 4x5's at res120 but don't have the numbers handy at the
moment). They've tried to render an 8x10 at res120 (using an image Rollo
Silver graciously let me use for this experiment) but the Kodak LVT
"file system" had trouble with that large of an image.
Well, enough techno-jargon on the Kodak LVT. :^)
Jon Noring
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------------------------------
Date: Sun, 12 Mar 2000 19:14:29 +1300
From: Steve Wray <steve.wray@the.net.nz>
Subject: (fractint) Fractals in *parallel* ?!?!?
Hi there,
I have been toying for some time with the idea of using a cluster of Linux
machines
to generate fractals in parallel.
My algorithm is quite simple and very efficient on heterogenous parallel
architectures
such as the Beowulf model.
Code reuse would seem to be appropriate since fractint has some extremely
good fractal generating algorithms.
However, I'm not a hugely experienced programmer in this sort of thing!
This is just
a hobbyist/curiosity motivated project.
I now have about 8 machines on which I'm starting to install linux and
network
for this project. They will be accessible from the internet. It would
probably be quite simple to form a collaborative group to develop this
system.
Any offers of help/collaboration will be considered!----------
The box said "Requires Windows 95 or better." I can't understand why it
won't work on my Linux computer.
(If you want my PGP public key send me an email with "get public key" as
the subject.)
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------------------------------
Date: Sun, 12 Mar 2000 20:49:38 +1300
From: "Morgan L. Owens" <packrat@nznet.gen.nz>
Subject: Re: (fractint) Tracing L-systems
At 21:23 11/03/2000 GET, you wrote:
>>Actually, a vector file would be just as dependent on resolution
>>as a bitmap file. Neither is a true fractal above a critical magnification.
>>The only advantage to a vector file would be that at a smaller
>>magnification it wouldn't be aliased. But you could get the same
>>effect by shrinking a bitmap in a resampling program.
>
>...But surely, with L-systems, which are actually made of lines (and not
>pixels), a vector output would capture the thing literally perfectly,
>whereas a bitmap must approximate...?
>
Up to the accuracy of the vector arithmetic used - since computers don't
tend to measure lengths with infinite precision, one ends up with rounding
errors creeping in at very high detail.
A philosophical issue is that any L-system that is actually _drawn_ is done
so only approximately (except in special and boring circumstances). One
would need to run the L-system for an infinite number of iterations (at
infinite precision) for literal perfection.
Morgan L. Owens
"take five paces west and dig under the tree you collide with."
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------------------------------
Date: Mon, 13 Mar 2000 11:53:28 +1300
From: Steve Wray <steve.wray@the.net.nz>
Subject: RE: (fractint) Xfractint 3.11 binary available
Hi there!
Having toyed with xfractint and fractint, I think one of the most useful features
that could be put into the unix version would be a much higher level of control
over the disk video mode (so that it doesn't *need* X) and the ability to run
it as a background task (ie without the cute console output)
Also, being able to send signals to the process and get it to save its current
work to an image file would be great!
I'm not much of a programmer or else I'd have had a go at these mods myself...
:(
I have a 486DX4-100 running linux. Its not running X windows and I happily leave
it for days generating fractals... As it is, if I telnet into it and run xfractint
with command line parameters I have to leave that telnet session open otherwise
the xfractint process dies...
On Tuesday, 22 February 2000 19:27, Scott D. Boyd [SMTP:sdboyd@fastlane.net] wrote:
> To all Linux/fractint fans out there:
>
> A binary package of Xfractint 3.11, based on fractint 20.0.7 is now avaible at:
> http://www.fastlane.net/~sdboyd/xfractint.html .
> (The link to download the .tar.gz file is available on that page.)
>
> This binary was compiled and is running great on Linux-Mandrake 6.1, kernel
> 2.2.13, xfree86 3.3.5 and KDE 1.1.2. (That setup is running on an AMD K6-2 -
> 450Mhz box.) It should run OK on most any 2.2.x kernel, and GNOME or KDE 1.1.x.
> Will it run on older kernels and older distributions? Install it and find out,
> let me know...
>
> Scott D. Boyd
>
>
> --
> email: sdboyd@fastlane.net
> http://www.fastlane.net/~sdboyd/
> Introducing -- Windows 2000 !!
> (Don't try this at home... or at work, either.)
>
>
> ------- End of forwarded message -------
>
> --------------------------------------------------------------
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> Unsubscribe: majordomo@lists.xmission.com "unsubscribe fractint"
- ----------
The box said "Requires Windows 95 or better." I can't understand why it won't work on my Linux computer.
(If you want my PGP public key send me an email with "get public key" as the subject.)
- --------------------------------------------------------------
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------------------------------
Date: Mon, 13 Mar 2000 02:35:43 +0100
From: Guy Marson <guy.marson@mnhn.lu>
Subject: (fractint) minilake.bat, a little animation..
Hi fractinters..
here is a batch (with .frm and 2 .par files) for a little animation,
dedicated to Sylvie Gallet and all the other enthusiasts writing prg's for
fractint..
You must use Fractint ver.: 20.0.8 to run this .bat!
Separate the different sections with an editor.
Copy all the sections (of this file) as separate files into your
Fractint-DIR ..
Run the "minilake.bat" ..
Create the animation with DTA.EXE (ver.2.2)
Enjoy it!
- -> rename the different sections as indicated..
- -> there must be a "minilake.bat"
a "middle.par"
a "startend.par"
- -> last but not least a "lake-is.frm"
PS: if somebody is interested in a larger .BAT, please let me know..
Cheers,
Guy Marson
****************************************************************************
********************************
This is the batch-file. Rename it as "minilake.bat"
Note: every line in the .bat must start with: fractint!!
****************************************************************************
********************************
fractint @startend.PAR center-mag=-0.04000/0.00000/3.450/1.00/-90.0
params=0.33064/0.00700/2.00000/0.02000/-46.00000/5.00000
fractint @startend.PAR center-mag=-0.03500/0.00000/3.394/1.00/-90.0
params=0.33083/0.00581/2.00000/0.03000/-45.25000/5.00000
fractint @startend.PAR center-mag=-0.03000/0.00000/3.338/1.00/-90.0
params=0.33103/0.00463/2.00000/0.04000/-44.50000/5.00000
fractint @startend.PAR center-mag=-0.02500/0.00000/3.281/1.00/-90.0
params=0.33122/0.00344/2.00000/0.05000/-43.75000/5.00000
fractint @startend.PAR center-mag=-0.02000/0.00000/3.225/1.00/-90.0
params=0.33142/0.00225/2.00000/0.06000/-43.00000/5.00000
fractint @startend.PAR center-mag=-0.01500/0.00000/3.169/1.00/-90.0
params=0.33161/0.00106/2.00000/0.07000/-42.25000/5.00000
fractint @startend.PAR center-mag=-0.01000/0.00000/3.113/1.00/-90.0
params=0.33181/-0.00012/2.00000/0.08000/-41.50000/5.00000
fractint @startend.PAR center-mag=-0.00500/0.00000/3.056/1.00/-90.0
params=0.33200/-0.00131/2.00000/0.09000/-40.75000/5.00000
REM this is the start of the middle-section
fractint @middle.PAR center-mag=0.00000/0.00000/3.000/1.00/-90.0
params=0.33220/-0.00250/2.00000/0.10000/-40.00000/5.00000
fractint @middle.PAR center-mag=0.00500/0.00000/2.944/1.00/-90.0
params=0.33239/-0.00369/2.00000/0.11000/-39.25000/5.00000
fractint @middle.PAR center-mag=0.01000/0.00000/2.888/1.00/-90.0
params=0.33259/-0.00487/2.00000/0.12000/-38.50000/5.00000
fractint @middle.PAR center-mag=0.01500/0.00000/2.831/1.00/-90.0
params=0.33278/-0.00606/2.00000/0.13000/-37.75000/5.00000
fractint @middle.PAR center-mag=0.02000/0.00000/2.775/1.00/-90.0
params=0.33298/-0.00725/2.00000/0.14000/-37.00000/5.00000
fractint @middle.PAR center-mag=0.02500/0.00000/2.719/1.00/-90.0
params=0.33317/-0.00844/2.00000/0.15000/-36.25000/5.00000
fractint @middle.PAR center-mag=0.03000/0.00000/2.663/1.00/-90.0
params=0.33337/-0.00962/2.00000/0.16000/-35.50000/5.00000
fractint @middle.PAR center-mag=0.03500/0.00000/2.606/1.00/-90.0
params=0.33356/-0.01081/2.00000/0.17000/-34.75000/5.00000
fractint @middle.PAR center-mag=0.04000/0.00000/2.550/1.00/-90.0
params=0.33376/-0.01200/2.00000/0.18000/-34.00000/5.00000
fractint @middle.PAR center-mag=0.04500/0.00000/2.494/1.00/-90.0
params=0.33395/-0.01319/2.00000/0.19000/-33.25000/5.00000
fractint @middle.PAR center-mag=0.05000/0.00000/2.438/1.00/-90.0
params=0.33415/-0.01437/2.00000/0.20000/-32.50000/5.00000
fractint @middle.PAR center-mag=0.05500/0.00000/2.381/1.00/-90.0
params=0.33434/-0.01556/2.00000/0.21000/-31.75000/5.00000
fractint @middle.PAR center-mag=0.06000/0.00000/2.325/1.00/-90.0
params=0.33454/-0.01675/2.00000/0.22000/-31.00000/5.00000
fractint @middle.PAR center-mag=0.06500/0.00000/2.269/1.00/-90.0
params=0.33473/-0.01794/2.00000/0.23000/-30.25000/5.00000
fractint @middle.PAR center-mag=0.07000/0.00000/2.213/1.00/-90.0
params=0.33493/-0.01912/2.00000/0.24000/-29.50000/5.00000
fractint @middle.PAR center-mag=0.07500/0.00000/2.156/1.00/-90.0
params=0.33512/-0.02031/2.00000/0.25000/-28.75000/5.00000
fractint @middle.PAR center-mag=0.08000/0.00000/2.100/1.00/-90.0
params=0.33532/-0.02150/2.00000/0.26000/-28.00000/5.00000
fractint @middle.PAR center-mag=0.08500/0.00000/2.044/1.00/-90.0
params=0.33551/-0.02269/2.00000/0.27000/-27.25000/5.00000
fractint @middle.PAR center-mag=0.09000/0.00000/1.988/1.00/-90.0
params=0.33571/-0.02387/2.00000/0.28000/-26.50000/5.00000
fractint @middle.PAR center-mag=0.09500/0.00000/1.931/1.00/-90.0
params=0.33590/-0.02506/2.00000/0.29000/-25.75000/5.00000
fractint @middle.PAR center-mag=0.10000/0.00000/1.875/1.00/-90.0
params=0.33610/-0.02625/2.00000/0.30000/-25.00000/5.00000
fractint @middle.PAR center-mag=0.10500/0.00000/1.819/1.00/-90.0
params=0.33629/-0.02744/2.00000/0.31000/-24.25000/5.00000
fractint @middle.PAR center-mag=0.11000/0.00000/1.763/1.00/-90.0
params=0.33649/-0.02862/2.00000/0.32000/-23.50000/5.00000
fractint @middle.PAR center-mag=0.11500/0.00000/1.706/1.00/-90.0
params=0.33668/-0.02981/2.00000/0.33000/-22.75000/5.00000
fractint @middle.PAR center-mag=0.12000/0.00000/1.650/1.00/-90.0
params=0.33688/-0.03100/2.00000/0.34000/-22.00000/5.00000
fractint @middle.PAR center-mag=0.12500/0.00000/1.594/1.00/-90.0
params=0.33707/-0.03219/2.00000/0.35000/-21.25000/5.00000
fractint @middle.PAR center-mag=0.13000/0.00000/1.538/1.00/-90.0
params=0.33727/-0.03337/2.00000/0.36000/-20.50000/5.00000
fractint @middle.PAR center-mag=0.13500/0.00000/1.481/1.00/-90.0
params=0.33746/-0.03456/2.00000/0.37000/-19.75000/5.00000
fractint @middle.PAR center-mag=0.14000/0.00000/1.425/1.00/-90.0
params=0.33766/-0.03575/2.00000/0.38000/-19.00000/5.00000
fractint @middle.PAR center-mag=0.14500/0.00000/1.369/1.00/-90.0
params=0.33785/-0.03694/2.00000/0.39000/-18.25000/5.00000
fractint @middle.PAR center-mag=0.15000/0.00000/1.313/1.00/-90.0
params=0.33805/-0.03812/2.00000/0.40000/-17.50000/5.00000
fractint @middle.PAR center-mag=0.15500/0.00000/1.256/1.00/-90.0
params=0.33824/-0.03931/2.00000/0.41000/-16.75000/5.00000
fractint @middle.PAR center-mag=0.16000/0.00000/1.200/1.00/-90.0
params=0.33844/-0.04050/2.00000/0.42000/-16.00000/5.00000
fractint @middle.PAR center-mag=0.16500/0.00000/1.144/1.00/-90.0
params=0.33863/-0.04169/2.00000/0.43000/-15.25000/5.00000
fractint @middle.PAR center-mag=0.17000/0.00000/1.088/1.00/-90.0
params=0.33883/-0.04287/2.00000/0.44000/-14.50000/5.00000
fractint @middle.PAR center-mag=0.17500/0.00000/1.031/1.00/-90.0
params=0.33902/-0.04406/2.00000/0.45000/-13.75000/5.00000
fractint @middle.PAR center-mag=0.18000/0.00000/0.975/1.00/-90.0
params=0.33922/-0.04525/2.00000/0.46000/-13.00000/5.00000
fractint @middle.PAR center-mag=0.18500/0.00000/0.919/1.00/-90.0
params=0.33941/-0.04644/2.00000/0.47000/-12.25000/5.00000
fractint @middle.PAR center-mag=0.19000/0.00000/0.863/1.00/-90.0
params=0.33961/-0.04762/2.00000/0.48000/-11.50000/5.00000
fractint @middle.PAR center-mag=0.19500/0.00000/0.806/1.00/-90.0
params=0.33980/-0.04881/2.00000/0.49000/-10.75000/5.00000
fractint @middle.PAR center-mag=0.20000/0.00000/0.750/1.00/-90.0
params=0.34000/-0.05000/2.00000/0.50000/-10.00000/5.00000
REM this is the start of the END-section
fractint @startend.PAR center-mag=0.20500/0.00000/0.694/1.00/-90.0
params=0.34019/-0.05119/2.00000/0.51000/-9.25000/5.00000
fractint @startend.PAR center-mag=0.21000/0.00000/0.638/1.00/-90.0
params=0.34039/-0.05237/2.00000/0.52000/-8.50000/5.00000
fractint @startend.PAR center-mag=0.21500/0.00000/0.581/1.00/-90.0
params=0.34058/-0.05356/2.00000/0.53000/-7.75000/5.00000
fractint @startend.PAR center-mag=0.22000/0.00000/0.525/1.00/-90.0
params=0.34078/-0.05475/2.00000/0.54000/-7.00000/5.00000
fractint @startend.PAR center-mag=0.22500/0.00000/0.469/1.00/-90.0
params=0.34097/-0.05594/2.00000/0.55000/-6.25000/5.00000
fractint @startend.PAR center-mag=0.23000/0.00000/0.413/1.00/-90.0
params=0.34117/-0.05712/2.00000/0.56000/-5.50000/5.00000
fractint @startend.PAR center-mag=0.23500/0.00000/0.356/1.00/-90.0
params=0.34136/-0.05831/2.00000/0.57000/-4.75000/5.00000
fractint @startend.PAR center-mag=0.24000/0.00000/0.300/1.00/-90.0
params=0.34156/-0.05950/2.00000/0.58000/-4.00000/5.00000
fractint @startend.PAR center-mag=0.24500/0.00000/0.244/1.00/-90.0
params=0.34175/-0.06069/2.00000/0.59000/-3.25000/5.00000
fractint @startend.PAR center-mag=0.25000/0.00000/0.188/1.00/-90.0
params=0.34195/-0.06187/2.00000/0.60000/-2.50000/5.00000
fractint @startend.PAR center-mag=0.25500/0.00000/0.131/1.00/-90.0
params=0.34214/-0.06306/2.00000/0.61000/-1.75000/5.00000
fractint @startend.PAR center-mag=0.26000/0.00000/0.075/1.00/-90.0
params=0.34234/-0.06425/2.00000/0.62000/-1.00000/5.00000
fractint @startend.PAR center-mag=0.26500/0.00000/0.019/1.00/-90.0
params=0.34253/-0.06544/2.00000/0.63000/-0.25000/5.00000
dta lake*.gif /ominilake
REM this is the end of the batch-file
************************************************************************
this is the parameter-file for the middle-section. NO headder and else!!
rename it as "middle.par".
************************************************************************
reset=2000 type=formula formulafile=lake-is1.frm
formulaname=lake-gmc ismand=n function=recip/ident passes=1
center-mag=1.33218/0.000333163/0.3971542/1/-90
params=0.332288/-0.05/2/0.8/-16/5 float=y maxiter=300 inside=0
invert=1/0/0 decomp=256 periodicity=0 viewwindows=1/0.75/yes/0/0
cyclerange=0/255 video=sf5 sound=no batch=yes savename=lake0000
colors=HPP<13>OWWPXXPXX<2>RZZSZZTZZTZZU__<4>W``W``Xaa<3>XaaXaaYaa<52>www\
wwwxxx<2>yyyyyyxxx<120>3CC3CC2BB<2>0AA0AA1BB<30>HOO
****************************************************************************
this is the parameter-file for the start/end-sections. NO headder and else!!
rename it as "startend.par".
****************************************************************************
reset=2000 type=formula formulafile=lake-is1.frm
formulaname=lake-gmc0 ismand=n function=recip/ident passes=1
center-mag=1.33218/0.000333163/0.3971542/1/-90
params=0.332288/-0.05/2/0.8/-16/5 float=y maxiter=300 inside=0
invert=1/0/0 decomp=256 periodicity=0 viewwindows=1/0.75/yes/0/0
cyclerange=0/255 video=sf5 sound=no batch=yes savename=lake0000
colors=HPP<13>OWWPXXPXX<2>RZZSZZTZZTZZU__<4>W``W``Xaa<3>XaaXaaYaa<52>www\
wwwxxx<2>yyyyyyxxx<120>3CC3CC2BB<2>0AA0AA1BB<30>HOO
*************************************************************
These are the formulas for the middle- and startend-sections.
Rename it as "lake-is1.frm".
*************************************************************
lake-gmc { ; Formula uses PHC to cast "soft" shadow
; October 1996 by Jan Maarten van der Valk
; 'periodicity=0' and 'passes=1' recommended
x=real(scrnpix)/real(scrnmax), y=(imag(scrnmax)-imag(scrnpix))/(rea\
l(scrnmax)*0.75), z=x+flip(y)
chrF1 = x<0.15372||(y<0.90475&&y>0.88525)||y>0.9505&&x>0.13422&&x<0\
.21372
chrr2 = x>0.22872&&x<0.24822&&y<0.9325||(abs(cabs(z+(-0.26875,-0.89\
247))-0.03028)<0.00975&&y>0.89247)
chra3 = abs(cabs(z+(-0.35678,-0.8995))-0.02325)<0.00975&&x<0.35678|\
|(abs(cabs(z+(-0.37178,-0.8995))-0.02325)<0.00975&&x>0.37178)&&y>0.\
8995||((abs(cabs(z+(-0.35678,-0.853))-0.02325)<0.00975&&x<0.35678)|\
|(abs(cabs(z+(-0.37178,-0.853))-0.02325)<0.00975&&x>0.37178))||(x>0\
.35678&&x<0.37178&&(y<0.8395||(y>0.913&&y<0.9325)||(y>0.8665&&y<0.8\
86)))||(x>0.38528&&x<0.40478&&y<0.8995)
xc=1*x
chrc4 = abs(cabs(z+(-0.47603,-0.87625))-0.0465)<0.00975&&(x<0.47603\
||y>xc+0.40022||y<-xc+1.35228)
xt=1*x
chrt5 = abs(cabs(z+(-0.58598,-0.86003))-0.03028)<0.00975&&y<0.86003\
||(x>0.54595&&x<0.56545&&y>0.86003)||(x>0.53081&&x<0.59573&&y>0.913\
&&y<0.9325)
chri6 = x>0.64101&&x<0.66051&&(y<0.931||y>0.9505)
chrn7 = x>0.67551&&x<0.69501&&y<0.9325||(abs(cabs(z+(-0.71554,-0.89\
247))-0.03028)<0.00975&&y>0.89247)||(x>0.73607&&x<0.75557&&y<0.8924\
7)
chrt8 = abs(cabs(z+(-0.82575,-0.86003))-0.03028)<0.00975&&y<0.86003\
||(x>0.78572&&x<0.80522&&y>0.86003)||(x>0.77057&&x<0.8355&&y>0.913&\
&y<0.9325)
test1 = chrF1||chrr2||chra3||chrc4||chrt5||chri6||chrn7||chrt8&&y>0\
.82&&y<0.97
chrT9 = y>0.3085&&x>0.03158&&x<0.07058||(x>0.04783&&x<0.05433)
chrh10 = x>0.07708&&x<0.08358||(abs(cabs(z+(-0.09394,-0.27438))-0.0\
1361)<0.00325&&y>0.27438)||(x>0.1043&&x<0.1108&&y<0.27438)
chre11 = abs(cabs(z+(-0.14167,-0.27438))-0.02112)<0.00325&&(x<0.141\
67||y>0.27329||y<0.27004)||(y>0.27329&&y<0.27979&&x>0.12055&&x<0.16\
28)
xCN=2.5*x
chrN13 = x>0.20505&&x<0.21155||(x>0.23105&&x<0.23805)||(y>-xCN+0.82\
762&&y<-xCN+0.84512)
chre14 = abs(cabs(z+(-0.26892,-0.27438))-0.02112)<0.00325&&(x<0.268\
92||y>0.27329||y<0.27004)||(y>0.27329&&y<0.27979&&x>0.2478&&x<0.290\
05)
xv=3*x
chrv15 = y>-xv+1.19814&&y<-xv+1.2187||y<xv-0.69814&&y>xv-0.7187&&y<\
0.29875
chre16 = abs(cabs(z+(-0.37002,-0.27438))-0.02112)<0.00325&&(x<0.370\
02||y>0.27329||y<0.27004)||(y>0.27329&&y<0.27979&&x>0.3489&&x<0.391\
15)
chrr17 = x>0.4009&&x<0.4074&&y<0.29875||(abs(cabs(z+(-0.41776,-0.28\
189))-0.01361)<0.00325&&y>0.28189)
chrE19 = x<0.48012||y<0.2565||(y<0.28575&&y>0.27925)||y>0.3085&&x>0\
.47362&&x<0.50612
chrn20 = x>0.51262&&x<0.51912&&y<0.29875||(abs(cabs(z+(-0.52948,-0.\
28189))-0.01361)<0.00325&&y>0.28189)||(x>0.53984&&x<0.54634&&y<0.28\
189)
chrd21 = x>0.5894&&x<0.5959||(abs(cabs(z+(-0.57721,-0.27438))-0.021\
12)<0.00325&&x<0.5894)
chri22 = x>0.6024&&x<0.6089&&(y<0.302||y>0.3085)
chrn23 = x>0.6154&&x<0.6219&&y<0.29875||(abs(cabs(z+(-0.63226,-0.28\
189))-0.01361)<0.00325&&y>0.28189)||(x>0.64262&&x<0.64912&&y<0.2818\
9)
chrg24 = x>0.69218&&x<0.69868&&y<0.29875||(abs(cabs(z+(-0.67999,-0.\
27438))-0.02112)<0.00325&&x<0.69218)&&y>0.23822||(abs(cabs(z+(-0.67\
715,-0.23822))-0.01828)<0.00325&&y<=0.23822)
chrS26 = abs(cabs(z+(-0.75555,-0.29713))-0.01462)<0.00325&&(x<=0.75\
555||y>0.29713)||(abs(cabs(z+(-0.75555,-0.26787))-0.01462)<0.00325&\
&(x>0.75555||y<0.26787))
chrt27 = abs(cabs(z+(-0.80359,-0.26686))-0.01361)<0.00325&&y<0.2668\
6||(x>0.78673&&x<0.79323&&y>0.26686)||(x>0.77993&&x<0.80684&&y>0.29\
225&&y<0.29875)
chro28 = abs(cabs(z+(-0.85133,-0.27438))-0.02112)<0.00325
chrr29 = x>0.8822&&x<0.8887&&y<0.29875||(abs(cabs(z+(-0.89906,-0.28\
189))-0.01361)<0.00325&&y>0.28189)
xy=2.5*x
chry30 = y<xy-2.10481&&y>xy-2.12231||(y>-xy+2.60481&&y<-xy+2.62231)\
&&y>xy-2.12231&&y<0.29875&&y>0.2175
test2 = chrT9||chrh10||chre11||chrN13||chre14||chrv15||chre16||chrr\
17||chrE19||chrn20||chrd21||chri22||chrn23||chrS26||chrt27||chro28|\
|chrr29&&y>0.25||chrg24||chry30&&y<0.315
test=test1||test2
test0=test0&&whitesq
test0=((test0||test)==0)
f1=fn1(real(p3)*fn2(imag(p1)*pixel))
f2=1/(imag(p2)*pixel)
pixel=(test==0)*f2+test*f1
; Import of formula 'Mandel_lake' from file LAKE-SGB.FRM
; p1: Julia seed
; real part of p2: bailout value
; imag part of p2: 0 = lake transform disabled
; any value between 0 and 100: water level in % of
; the screen height (0 = bottom, 100 = top)
; real part of waves: amplitude of the wave (try 0.2)
; imag part of waves: frequency (try 300)
; This formula uses the new predefined variables:
; center = (x , y)
; magxmag = (mag, xmagfactor)
; rotskew = (rot, skew)
bailout = real(p2)
; Lake transformation
; -------------------
waves = 0.2,200
if (imag(p3) > 0 && imag(p3) <= 100)
level = imag(p3) / 100 ; water level
ampl = real(waves) ; amplitude of the wave
freq = imag(waves) ; frequency
angle = real(rotskew * pi / 180)
exp_irot = exp(-flip(angle))
h = 1 / real(magxmag)
w = h / 0.75 * imag(magxmag)
tanskew = tan(imag(rotskew * pi / 180))
u = 2 * w * exp_irot
v = 2 * h * (tanskew + flip(1)) * exp_irot
z3rd = center + (-w-h*tanskew - flip(h)) * exp_irot
z = pixel - z3rd
b = imag(conj(u)*z) / imag(conj(u)*v)
if (b <= level)
dy = level - b
z = z + 2*dy * (1+ampl*sin(freq*dy^0.2)) * v
endif
z = z + z3rd
else
z = pixel
endif
if (ismand)
c = z
else
c = p1
endif
:
z = z*z + c
|z| <= bailout
}
lake-gmc0 { ; Formula uses PHC to cast "soft" shadow
; October 1996 by Jan Maarten van der Valk
; 'periodicity=0' and 'passes=1' recommended
x=real(scrnpix)/real(scrnmax), y=(imag(scrnmax)-imag(scrnpix))/(rea\
l(scrnmax)*0.75), z=x+flip(y)
chrDT1 = y<1.5&&x>0.5&&x<0.5
test1 = chrDT1&&y>1.5&&y<1.5
chrDT2 = y<1.5065&&x>0.49675&&x<0.50325
test2 = chrDT2&&y>1.5&&y<1.565
test=test1||test2
test0=test0&&whitesq
test0=((test0||test)==0)
f1=fn1(real(p3)*fn2(imag(p1)*pixel))
f2=1/(imag(p2)*pixel)
pixel=(test==0)*f2+test*f1
; Import of formula 'Mandel_lake' from file LAKE-SGB.FRM
; p1: Julia seed
; real part of p2: bailout value
; imag part of p2: 0 = lake transform disabled
; any value between 0 and 100: water level in % of
; the screen height (0 = bottom, 100 = top)
; real part of waves: amplitude of the wave (try 0.2)
; imag part of waves: frequency (try 300)
; This formula uses the new predefined variables:
; center = (x , y)
; magxmag = (mag, xmagfactor)
; rotskew = (rot, skew)
bailout = real(p2)
; Lake transformation
; -------------------
waves = 0.2,200
if (imag(p3) > 0 && imag(p3) <= 100)
level = imag(p3) / 100 ; water level
ampl = real(waves) ; amplitude of the wave
freq = imag(waves) ; frequency
angle = real(rotskew * pi / 180)
exp_irot = exp(-flip(angle))
h = 1 / real(magxmag)
w = h / 0.75 * imag(magxmag)
tanskew = tan(imag(rotskew * pi / 180))
u = 2 * w * exp_irot
v = 2 * h * (tanskew + flip(1)) * exp_irot
z3rd = center + (-w-h*tanskew - flip(h)) * exp_irot
z = pixel - z3rd
b = imag(conj(u)*z) / imag(conj(u)*v)
if (b <= level)
dy = level - b
z = z + 2*dy * (1+ampl*sin(freq*dy^0.2)) * v
endif
z = z + z3rd
else
z = pixel
endif
if (ismand)
c = z
else
c = p1
endif
:
z = z*z + c
|z| <= bailout
}
****************************************************************EOF***
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------------------------------
Date: Sun, 12 Mar 2000 21:39:53 -0600
From: Tim Wegner <twegner@swbell.net>
Subject: (fractint) 20.0.9 available
Fractint 20.0.9 is now available. The web site www.fractint.org
seems to be down, so I posted this on my own WWW site. This is
not much of a site :-) You have to paste the exact URL into your
browser to get the file. If these same files are available via
anonymous FTP I haven't figured out how.
The DOS fractint executable is:
http://home.swbell.net/twegner/fradev.zip
and the source diff file is:
http://home.swbell.net/twegner/2000p09.zip
I'll update fractint.org as soon as it is up.
The what's new for this patch is:
"Fixed a bug that occurred when maxhistory=0 was used. Fixed a
bug that occurred when ismand was used in a formula and ctrl <o>
was pressed. Updated Jonathan's email address."
This is not a real important patch unless you are either interested
in those particular bug fixes ot like to help us by testing the latest
version. However, here is something that might be of interest to real
hard core fractint fans. For quite some time I have been maintaining
a version of fractint with the integer math removed. The idea was to
use this as the basis for the future, since it is unlikely integer math
will survive. The following is the 20.0.9 version of the float-only
version:
http://home.swbell.net/twegner/fradevfo.zip
(The "fo" means "float only").
I'll post the source for this soon. It would probably make sense to
make an xfractint version based on these sources since Xfractint
does not support integer math anyway. I would be interested in
hearing of anything that does not work in the float only version
(that's not related to integer math of course). Beware - this version
looks a LOT like the regular version.
The only real advantage of the float-only version for users is a
somewhat smaller memory footprint (try with debug=10000 on the
command line and compare.)
Tim
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------------------------------
Date: Sun, 12 Mar 2000 23:41:02 -0500
From: Ruth Antwine <ruthken@fltg.net>
Subject: Re: (fractint) 20.0.9 available, Question on Win95
Small question. Do you know if/when an updated version for win95/98 may
became available?
If so, what sort of things will be updated?
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------------------------------
Date: Mon, 13 Mar 2000 10:28:28 GMT
From: "Andrew Coppin" <orphi69@hotmail.com>
Subject: (fractint) What's in a name?
Short daft question:
If you remove the integer math from FractInt, shouldn't it then be called
FractReal?
______________________________________________________
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------------------------------
Date: Mon, 13 Mar 2000 11:32:32 +0100
From: Tonton Th <oulala@chez.com>
Subject: Re: (fractint) What's in a name?
Andrew Coppin wrote:
>
> If you remove the integer math from FractInt, shouldn't it then be called
> FractReal?
>
<troll>
no, IMHO, the "int" will be for "international", so
if you drop integers, no need to change the name
</troll>
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------------------------------
Date: Mon, 13 Mar 2000 07:04:31 -0800 (PST)
From: Jon Noring <noring@netcom.com>
Subject: (fractint) Speed and precision in UF compared to Fractint
Hello,
This is my second post to come up to speed with UltraFractal.
I noticed while playing around with UF on some Fractint pars that UF is
somewhat slower (appr. 50%) than Fractint. This surprised me, since I
assumed 32-bit would run a little faster than 16-bit on the newer Pentiums,
which are optimized for 32-bit operation. I guess the Windows 95/98 GUI
overhead slows things down, or that UF has some other things that slow it
down vis-a-vis Fractint. (Note that I specified floating-point in my
Fractint pars so this difference in speed is not due to comparing floating-
point with integer calcuations. Of course, I could still be comparing apples
and oranges in other ways, so those here who are expert on this topic feel
free to chime in and clarify matters.)
I also want to ask about the numerical precision (number of significant
digits) of UF compared to Fractint and how that affects things like zoom.
Fractint, for example, has a maximum zoom limit due to numerical precision.
Naively assuming that 32-bit operation should double the number of
significant digits for "single precision", I would gather UF shines here.
Comments on these points? Do note that I am not knocking UF as a fractal
generator by claiming that calculation speed is the only thing important to
me. There are many good things about UF, including its color mapping/gradient
system. Now if UF had a "Divide and Conquer" utility like Fractint has, I
think UF will have arrived in my book.
Thanks.
Jon Noring
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------------------------------
Date: Mon, 13 Mar 2000 10:12:30 -0500 (EST)
From: Jim Muth <jamth@mindspring.com>
Subject: (fractint) FOTD, 13-03-00 (Fractal Citrus Fruit [4]) (c)
FOTD -- March 13, 2000 (Rating 4)
Fractal enthusiasts and visionaries:
Since the first version of today's quickie fractal resembled a
citrus fruit sliced through the middle, I named the picture
"Fractal Citrus Fruit". I have given the image a new color
palette since naming it, but I kind of liked the original name,
so I let it keep its tangy title.
It's a kind of patchwork fractal, full of the flat areas of
color typical of fractals that combine two negative powers of Z.
The midget in the image is part of the larger fractal that
appears when a tiny bit of Z^(-101) is subtracted from Z^(-2).
This parent fractal of today's image is quite a complex thing,
which I may investigate further in the days to come.
The JPEG image is posted to:
<alt.binaries.pictures.fractals>
and to:
<http://home.att.net/~Paul.N.Lee/FotD/FotD.html>
although the parameter file runs so quickly that the download is
the less efficient way of viewing the picture, which rates only
a 4 on my 0-to-10 scale of fractal worthiness.
The fractal weather returned to winter today, with strong,
biting winds, scudding dark clouds, and a temperature of 38F
(3C), which kept the cats by the warmest object in sight.
I once again exhausted my fractal philosophy today on letters
to the philofractal list. Then I found that Fractalus is down,
leaving me unable to post my handiwork. No problem however.
The philosophy will keep until Fractalus returns to life.
Until next time, I'll amuse myself with the float-only version
of Fractint, which I have just now downloaded, and which seems
to be slightly faster than the Patchlevel 8 version. I'll see
all you wonderful fractal folks again in 24 hours, plus or minus
an hour or so. While you're waiting, take care, and keep an
open fractal mind.
Jim Muth
jamth@mindspring.com
START 20.0 PAR-FORMULA FILE================================
FractalCitrusFruit { ; time=0:00:35.32 SF5 on a P200
; Version 2000 Patchlevel 8
reset=2000 type=formula formulafile=critical.frm
formulaname=MandelbrotMix4 function=ident passes=1
center-mag=-0.00579239468005164/0/4.204792e+009/1/180
params=1/-2/-0.01/-101/0/0 float=y maxiter=600
bailout=25 inside=0 logmap=19
symmetry=xaxis periodicity=10
colors=000UFAmjPZKUjZ6bXNA0KMGVmrPIHAicod`k_YgzmAgbY\
`Z`aB2<2>WQVzEGrMK<2>vgTob0FHx<2>4vUQbVkJWZNGNQ0PS8R\
TGSUOVhY_niClXb8pDdRM_YAsULfZmmmfRBhIQtXNXY2WZFV_SW`\
pVakVbg0cSMda3eSDfWMg_BhZLiaijidkg_leVmfVneVodppG<2>\
_sYktp0u_GvaHwR<2>Sz`NzX_zYXz`jzv<2>Zzg_zj<2>Wzd`z`<\
2>WzcFz__z2XzLzzXczyZznazm<2>WzeqzFizOazWpzWmzM<2>Zz\
_bzl<2>XzeWzsVzmVzhuz9gzPIzG<2>SzYBzpIzkPzgrzF<2>`zY\
SzYJz6PzN1zn<2>Oze_zJYzQWzXszD<2>`zYfzw`zvYzlSzh<2>V\
zdsz5vzUlzYcz`vzh<2>azdPzbRzcTzc7zI<2>PzZ3zmYztXznWz\
hEzYNz`7z3FzGNzSOzKRzRTzYGzB<2>SzXZzJ<2>WzZFzaNzbZzg\
Xze9zG<2>QzYgzo<2>YzfUz0VzEVzRHzbLzZ<2>TzbWz1VzLKz3G\
zi<2>SzdvzC<2>azXIzjgz86zVFzYNz`rzpfzibz_lz9<2>ZzX9z\
6<2>QzWnzYgz_`zaIziPzfvzLhzVJzGzzf<2>bzc9zuVz8<2>VzW\
4zBDzLMzV7zl
}
frm:MandelbrotMix4 {; Jim Muth
a=real(p1), b=imag(p1), d=real(p2), f=imag(p2),
g=1/f, h=1/d, j=1/(f-b), z=(-a*b*g*h)^j,
k=real(p3)+1, l=imag(p3)+100, c=fn1(pixel):
z=k*((a*(z^b))+(d*(z^f)))+c,
|z| < l
}
END 20.0 PAR-FORMULA FILE==================================
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End of fractint-digest V1 #454
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