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fractint-digest         Sunday, March 15 1998         Volume 01 : Number 134




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

Date: Sat, 14 Mar 1998 21:48:21 -0800
From: kathy roth <[e-mail]>
Subject: (fractint) more bugs

Here's a couple of more bugs, not in amber.  I couldn't quite get the
colors right- does anyone else (Wizzle?) want to try?

scarab             { ; kathy roth 3-8-98
                     ; frm by Paul Carlson
  reset=1960 type=formula formulafile=triangl.frm
  formulaname=Newt3_Atan_Mset
  center-mag=+0.50047314317370660/+0.00000830285516731/2625.797/-1/270
  params=0.001/0.1 float=y inside=bof60 outside=summ
 colors=000MYD<6>PbF<6>svc<6>feBdc7``8<4>FOFJNF\
<2>caEkfDrkDzqCzmC<8>v8A<5\
  >x39<3>`A7QE6KG6<7>rDQ<2>tS_uXcvagwfkwknxpryuvzzz\
<33>LguKguJfuHetHdrHcq<\
 4>F`kE_iEZhEYfDYe<8>BUVBUUBTTASR<38>4AA\
<13>BZUC`VBZU<22>6B56936A4<38>MYD
  }

butterfly          { ; kathy roth 3-8-98
                     ; frm by Mark Christenson
  reset=1960 type=formula formulafile=triangl.frm
  formulaname=gravijul-a1 function=asin/atanh/atan
  center-mag=0.0103628/0.0154305/0.2575853/1/-19.998
  params=1.1/0/1/0.93/0.966/2.2 float=y inside=111 outside=real
  invert=1/0/0 decomp=256
  colors=000QE6KG6<7>rDQ<2>tS_uXcvagwfkwknxpryuvzzz\
<33>LguKguJfuHetHdrHcq<\
 4>F`kE_iEZhEYfDYe<8>BUVBUUBTTASR<38>4AA\
<13>BZUC`VBZU<22>6B56936A4<46>PbF\
  <6>svc<6>feBdc7``8<4>FOFJNF<2>caEkfDrkDzqCzmC<8>v8A\
<5>x39r48l68000mmm
  cyclerange=0/255
  }

Newt3_Atan_Mset {; Original formula by Paul Carlson
                       ; with optimizations by Sylvie Gallet
    ; F(w)   = w^3 + (c - 1) * w - c
    ; F'(w)  = 3 * w^2 + c - 1
    ; F''(w) = 6 * w,  so initialize w to zero
    ;
    ; p1 contols the "layering"
    ;
    c = pixel , c1 = c - 1
    z = iter = bailout = prev_w = w = 0
    colors_in_range = 80
    colors_in_range_1 = 79
    k = 0.5 * sqrt(1 - 4 * c)
    root1 = (1,0)
    root2 = -0.5 + k
    root3 = -0.5 - k
    :
    ;
    w2 = w * w
    w = w - (w * (w2 + c1) - c) / (3 * w2 + c1)
    ;
    delta_w = w - prev_w
    IF (|delta_w| < p1)
        angle = atan(imag(delta_w) / real(delta_w))
        IF (delta_w >= 0)
            IF (imag(delta_w) < 0)
                angle = pi + angle
            ELSE
                angle = pi - angle
            ENDIF
        ELSEIF (imag(delta_w) > 0)
            angle = -angle
        ENDIF
        IF     (|w - root1| < p1)
            range_num = 0
        ELSEIF (|w - root2| < p1)
            range_num = 1
        ELSEIF (|w - root3| < p1)
            range_num = 2
        ENDIF
        bailout = 1
        z = colors_in_range_1*angle/pi+range_num*colors_in_range+1
    ENDIF
    prev_w = w
    iter = iter + 1
    z = z - iter
    bailout = 0
}

gravijul-a1 { ; generalized r^(-2) by Mark "Bud" Christenson 3/6/98
; defaults: p1 = (1,0) p2 = (0,0) p3 = (0,4)
  q4 = real(p2)
  q2 = p1
  q1 = imag(p2) ; new knob 1
  q3 = real(p3) ; new knob 2
  q5 = imag(p3) ; bailout
   z = pixel:
   v = fn1(z)
   w = q1*(v*v)
   z = q3*fn3(q2/fn2(w)) + q4
    |z| < q5
  }





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

Date: Sun, 15 Mar 1998 01:36:58 -0600
From: "Justin A. Kolodziej" <[e-mail]>
Subject: Re: (fractint) HARD HARDWARE QUESTION

Ryan Jameson wrote:
>
> At 02:35 PM 3/14/98 -0500, you wrote:
> >64 gigs is reasonable these days.  I saw a supposedly-working 6.4G
> >drive sell on auctionweb yesterday for $225.  Probably you could put
> >together 64G of drive-space on a single machine for $3500 max, and
> >maybe much less.
> >
> >(I'd be doing RAID4, though, with that much disk -- afraid of disk
> >failures if I had ten disks!)
> >
> >I imagine the 64G is for fractals, though :)
> >
> >Kragen
>
> You're right, I'd kill to have 64 gigs. My 6.4 gig ran out in about 4
> months. I guess I'm just severly talented at filling up drive space....

Makes me wonder how I'm managing with a measly 2.5 gigs, of which 300
are FreeBSD now and the rest are WinBl... oops, I mean Windoz... <smack>

Oh yeah... I don't make very many GIFs of fractals! because mine all
suck! :-)

Maybe the PNG format will help that (the size not my skill as an
artist).

Justin K.
- --
I sense a great disturbance in the Source.
Justin A. Kolodziej
I am vms.csd.mu.edu
Marquette University is http://www.mu.edu

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

Date: Sun, 15 Mar 1998 02:33:50 -0600
From: Felix <[e-mail]>
Subject: Re: (fractint) FRACTINT.ORG - alternative

> Sounds like www.fractint.org is the choice then.
> Justin K.

For $8 the name fractint.base.org can be pointed to the spanky server.  This
is not the best solution, but it's maybe the cheapest and simplest...

- -Andrew

- --
| Andrew Duhan    |     Cereal is     |
| [e-mail]  |       g00d.       |
| http://chimera.acs.ttu.edu/~aduhan/ |



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

Date: Sun, 15 Mar 1998 07:23:07 -0500
From: davides <[e-mail]>
Subject: Re: (fractint) Color Maps

At 02:40 PM 3/14/98 -0600, you wrote:
>My two drachmas worth:
 If two or more people send in color maps with
>the same name, such as orngblue.map, then they could be renamed
>orngblu1.map and orngblu2.map.
>
>Bob Margolis

Perhaps with a modification: eg: for Bob Margolis: BMorngblu.map, for
Wizzle: Worngblu.map, etc.
[e-mail]
Back up my hard drive?
How do I put it in reverse?

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

Date: Sun, 15 Mar 1998 08:46:15 -0800
From: Ryan Jameson <[e-mail]>
Subject: Re: (fractint) HARD HARDWARE QUESTION

At 01:36 AM 3/15/98 -0600, you wrote:
>Makes me wonder how I'm managing with a measly 2.5 gigs, of which 300
>are FreeBSD now and the rest are WinBl... oops, I mean Windoz... <smack>
>
>Oh yeah... I don't make very many GIFs of fractals! because mine all
>suck! :-)
>
>Maybe the PNG format will help that (the size not my skill as an
>artist).
>
>Justin K.

Well, you have to realize that I have about 400 megs of MP3's, and about
500 megs of textures that I use for 3d work, and web pages. I really do
waste a lot of space. Although, I would love to waste a lot more!

I too can't wait for png to become more supported. the lastest version of
the two major browsers support them, but not all thier functions. (the
alpha channels, most notably) I'd really love to make my graphics fade into
my background better, but it's still not supported! Ack! hurry it up Netscape!

Ryan

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

Date: Sun, 15 Mar 1998 09:26:21 -0800
From: Wizzle <[e-mail]>
Subject: Re: (fractint) more bugs

At 09:48 PM 3/14/98 -0800, you wrote:
>Here's a couple of more bugs, not in amber.  I couldn't quite get the
>colors right- does anyone else (Wizzle?) want to try?
>
Sure....I'll try anything

The maps in the last two pars are worth comparing. The very last par has
Paul Carlson's colorful map and the par right above it has one of my
modifications of that map.  I've found it a particularly good one for
coloring julias.....just stick the darkest and lightest colors of the area
you want to change where paul did.  I also varied the map with areas of
black. It's been great fun to work with. I asked Paul if we could use the
map in our new set and he graciously agreed....no voting on this one!!! It
goes in as it is so technically useful.

scarab-v1          { ; wizzle 3/15/98 with kathy roth's pars
                     ; frm by Paul Carlson
  reset=1960 type=formula formulafile=mar98.frm
  formulaname=newt3_atan_mset
  center-mag=+0.50047314317370660/+0.00000830285516731/2625.797/-1.3333/27\
  0 params=0.001/0.1 float=y inside=bof60 outside=summ
  viewwindows=1/1/yes/0/0
  colors=000OSW<10>CCHAAFAAFAAFABF<52>yyyzzzyyy<45>CCGAAFABG<44>luxmwzmvy<\
  38>BCHAAFBCG<24>mzz<22>PUX
  }

scarab-v2          { ; wizzle 3/15/98 with kathy roth's pars
                     ; frm by Paul Carlson
  reset=1960 type=formula formulafile=mar98.frm
  formulaname=newt3_atan_mset
  center-mag=+0.50047314317370660/+0.00000830285516731/2625.797/-1.3333/27\
  0 params=0.001/0.1 float=y inside=bof60 outside=summ
  viewwindows=1/1/yes/0/0
  colors=00AykK<66>K1000K<72>00m00m00l<51>10KK00<55>zmKzmKylK
  }

butterfly-v1       { ; wizzle 3/15/98 from kathy roth par
                     ; frm by Mark Christenson
  reset=1960 type=formula formulafile=mar98.frm
  formulaname=gravijul-a1 function=asin/atanh/atan
  center-mag=0.0103628/0.0154305/0.2575853/1/-19.998
  params=1.1/0/1/0.93/0.966/2.2 float=y inside=111 outside=real
  invert=1/0/0 decomp=256 viewwindows=1/1/yes/0/0
  colors=nQO<5>c40aG0<14>xwizzmywj<11>aG00C4<15>0zc<12>0C40CC<15>0zz<12>0C\
  C00O<14>FFwGGzFFw<11>00OK0K<15>rhz<11>K0KO08<15>zcm<11>W9AU67R34O00Q11<1\
  4>zzm<12>O00000<14>000c40<14>xjizmmyjj<4>pTR cyclerange=0/255
  }

butterfly-v2       { ; wizzle 3/15/98 from kathy roth par
                     ; frm by Mark Christenson
  reset=1960 type=formula formulafile=mar98.frm
  formulaname=gravijul-a1 function=asin/atanh/atan
  center-mag=0.0103628/0.0154305/0.2575853/1/-19.998
  params=1.1/0/1/0.93/0.966/2.2 float=y inside=111 outside=real
  invert=1/0/0 decomp=256 viewwindows=1/1/yes/0/0
  colors=0000AKA00<15>zzc<12>A003A3<14>czc<13>3A3U0O<15>uhu<11>X4RU0OU3A<1\
  6>zcc<12>U3AG75<13>zzc<11>LD9I96E53A0000A<11>7Od8Qg9SjAUmASj<10>13E00A00\
  0<13>000F70<15>rZU<12>F700AK<15>0zz<11>0FO
  }

butterfly-v3       { ; wizzle 3/15/98 from kathy roth par
                     ; frm by Mark Christenson w paul carlson map
  reset=1960 type=formula formulafile=mar98.frm
  formulaname=gravijul-a1 function=asin/atanh/atan
  center-mag=0.0103628/0.0154305/0.2575853/1/-19.998
  params=1.1/0/1/0.93/0.966/2.2 float=y inside=111 outside=real
  invert=1/0/0 decomp=256 viewwindows=1/1/yes/0/0
  colors=000Q0A<14>z0f<13>O08O00<15>z88<12>O00000<13>000c40<14>xU0zW0yU0<1\
  1>c40aG0<15>zz0<12>aG00C4<15>0zR<12>0C40CC<15>0zz<12>0CC00O<14>FFwGGzFFw\
  <11>00OSA`<14>eNxfOzeNw<10>K2OO08
  }



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

Date: Sun, 15 Mar 1998 09:31:26 -0800
From: Wizzle <[e-mail]>
Subject: Re: (fractint) Color Maps

During the decision period I'm going to name the maps for people because
that will help me keep straight whose maps I've posted and whose I still
need to post (I'm starting ....but slowly). We can have The Great
Nomenclature Debate after we figure out which maps are the ones we want to
bundle.

The people approach also helps me during this period because I'm trying to
request permission to use some of the maps that come with the pars posted
here.

Angela

p.s. I have to work this week end (darn) so am behind already

At 07:23 AM 3/15/98 -0500, you wrote:
>At 02:40 PM 3/14/98 -0600, you wrote:
>>My two drachmas worth:
> If two or more people send in color maps with
>>the same name, such as orngblue.map, then they could be renamed
>>orngblu1.map and orngblu2.map.
>>
>>Bob Margolis
>
>Perhaps with a modification: eg: for Bob Margolis: BMorngblu.map, for
>Wizzle: Worngblu.map, etc.
>[e-mail]
>Back up my hard drive?
>How do I put it in reverse?


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

Date: Sun, 15 Mar 1998 12:29:40 -0500
From: Theran Cochran <[e-mail]>
Subject: (fractint) Re: fractint-digest V1 #132

On Sat, 14 Mar 1998 05:48:18 -0700, Tim Wegner wrote:
>
> >I should do this, I just need to get off my duff. Should it be
> >fractint.org or fractint.com? What are the meanings of the domain
> >names.
>
>   Probably the .org domain would be more strictly correct but the
> .com domain might be more useful.
>
>   For instance, if you registered www.fractint.com, then anyone
> using Netscape could just enter "fractint" in the Open dialog box and
> Netscape would automatically resolve this to www.fractint.com.  I
> don't think that a .org domain would be resolved.

It wouldn't. I just tried it with aclu and it tried to contact
www.aclu.com! Of course, when I originaly went looking for the ACLU's
homepage, I tried www.aclu.org from the very start, because I knew it
was a nonprofit organization.

>   For most of us, whether it's .org or .com wouldn't matter but it
> would be much easier for new folk to find a .com address.

But it would mistakenly identify Fractint as a commercial product. To be
honest, I would be more inclined to trust a "free download" from a
fractint.org than a fractint.com.

When I first heard about fractint in a graphics programming book, I
tried fractint.org right off the bat, then fractint.com, then yahoo.com.

Any domain would be better than what fractint has now, but lets make it
express fractint's nature as a freeware, volunteer supported, program.

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

Date: Sun, 15 Mar 1998 10:08:12 -0800
From: Wizzle <[e-mail]>
Subject: (fractint) Submitting Colormaps

Please select the maps you submit to me with some degree of care and I
would prefer maps in a variety of categories from each person. I have
established the following categories

1. 123 Maps - maps with 1, 2, or 3 colors
2. Midtones - those trusty gradients with two sub-categories ....maps with
long versus short intervals between colors
3. Blacks
4. Jewel tones
5. Stripes
6. Specialty

The naming of maps for people is working well for me as I then don't have
to sort thru to find if I have the same name among hundreds of maps
(yes....hundreds already). For future submittals please re-name your maps
with your name....i.e. wizzle1.map wizzle2.map, etc.

I am clearly going to have to do some pruning among the maps submitted
since I can't post hundreds of gifs.  I think I will impose an arbitary
limit of 20 maps per person posted but zip up the whole shebang so everyone
can see what was submitted, if they like. How does this sound?

Angela



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

Date: Sun, 15 Mar 1998 10:58:50 -0800 (PST)
From: "James R. McKenzie" <[e-mail]>
Subject: Re: (fractint) HARD HARDWARE QUESTION

- ---Paul Derbyshire <[e-mail]> wrote:
>
> >(I\'d be doing RAID4, though, with that much disk -- afraid of disk
> >failures if I had ten disks!)
>
> RAID4? WTF is RAID4?
>
>

The definition of RAID I'm familiar with is Redundant Array of
Inexpensive Disks.  RAID 4 simply means 4 disks daisy chained together
unless the acromyn has been redeifned and I missed it.  Freakier
things have happened.


Hope this was semi-psuedo-sorta-kinda-quasi useful.



                               James R. McKenzie



                                [e-mail]
_________________________________________________________
DO YOU YAHOO!?
Get your free @yahoo.com address at http://mail.yahoo.com


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

Date: Sun, 15 Mar 1998 14:30:13 -0500 (EST)
From: [e-mail] (Kragen)
Subject: Re: (fractint) HARD HARDWARE QUESTION

On Sat, 14 Mar 1998, Paul Derbyshire wrote:
> >(I'd be doing RAID4, though, with that much disk -- afraid of disk
> >failures if I had ten disks!)
>
> RAID4? WTF is RAID4?

This is probably off-topic for fractint; I'll send you a description in
private email.  Anyone else who would like one can send me email to ask
for it.

Kragen


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Date: Sun, 15 Mar 1998 11:51:53 -0800
From: Mark Christenson <[e-mail]>
Subject: (fractint) gravibrot: a technical question

While I'm no math slouch, I am not really good with fractal set
theory.  While investigating gravibrot, I have encountered a
disturbing phenomenon.  As opposed to every other fractal
I have previously dealt with in any detail, where the set
boundary is relatively stable with respect to bailout value,
most of the gravibrot set boundaries undergo gross changes
as "bailout" varies.  These changes are not resolved by
increasing "maxiter".

Is something wrong with my formulation, or are multi-function
fractals just fundamentally different?


Thanks, Bud


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Date: Sun, 15 Mar 1998 14:54:58 -0500 (EST)
From: [e-mail] (Kragen)
Subject: Re: (fractint) HARD HARDWARE QUESTION

On Sun, 15 Mar 1998, James R. McKenzie wrote:
> > RAID4? WTF is RAID4?
>
> RAID 4 simply means 4 disks daisy chained together
> unless the acromyn has been redeifned and I missed it.

Nope.

Kragen


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Date: Sun, 15 Mar 1998 15:20:30 -0500
From: Sylvie Gallet <[e-mail]>
Subject: (fractint) Pseudo 3D and Orbit Traps

Hi Paul et al,

  Thanks for explaining your methods!

  I've played a bit woth one of your formulas, hope you will like the
result!

  Cheers,

        - Sylvie

frm:Gallet-10-02 { ; Modified Paul W. Carlson formula ( Petals_Mset)
    ;****************************************************
    ; Always use floating point math and outside=3Dsumm.
    ;
    ; Parameters:
    ;   p1       =3D radius of the circles
    ;   p2       =3D circle offset factor
    ;   real(p3) =3D number of color ranges
    ;   imag(p3) =3D number of colors in each color range
    ;
    ; Note that the equation variable is w, not z.  Always
    ; initialize z to zero.
    ;****************************************************
    w =3D 0
    c =3D pixel
    r =3D real(p1) , bailout =3D imag(p1)
    r2 =3D r * r
    ro =3D r + r * p2
    f =3D 1 - (2 + p2) * p2
    k =3D r * (p2 + sqrt(f))  ;abs val of petal center (k,k)
    k1 =3D k*(1,1) , k2 =3D conj(k1)
    plsqd =3D 2 * r2 * f        ;petal length squared
    z =3D 0
    num_ranges =3D real(p3)
    colors_in_range =3D imag(p3)
    range_num =3D 0
    iter =3D 0:
    ;
    w =3D 1 / (w*w + c)
    ;****************************************************
    ; Determine which pair of overlapping circles the
    ; orbit point falls in, if any.
    ;****************************************************
    c1 =3D (|w - ro| < r2)
    c2 =3D (|w + flip(ro)| < r2)
    c3 =3D (|w + ro| < r2)
    c4 =3D (|w - flip(ro)| < r2)
    IF (c1 && c4)
      d =3D |w-k1|
    ELSEIF (c1 && c2)
      d =3D |w-k2|
    ELSEIF (c2 && c3)
      d =3D |w+k1|
    ELSEIF (c3 && c4)
      d =3D |w+k2|
    ELSE
      d =3D 0
    ENDIF
    ;
    IF (d > 0)
    ;************************************************
    ; Set z equal to the index into the colormap.
    ;************************************************
    index =3D colors_in_range * d / plsqd
    z =3D index + range_num * colors_in_range + 1
    ENDIF
    ;
    range_num =3D range_num + 1
    IF (range_num =3D=3D num_ranges)
      range_num =3D 0
    ENDIF
    iter =3D iter + 1
    z =3D z - iter
    d =3D=3D 0 && |w| < bailout
    }

sg10-0202          { ; .                                    t=3D  0:23:39=
=2E87
                     ; Copyright Sylvie Gallet, Mar 15, 1998
                     ; <[e-mail]>
                     ; t=3Dcalc time using a Pentium 166 at 1600 x 1200
  reset=3D1960 type=3Dformula formulafile=3Dgallet10.frm
  formulaname=3DGallet-10-02 passes=3D1
  corners=3D0.185752777/0.219864777/0.84119192/0.86677592
  params=3D0.3/1000/0.02/0/5/50 float=3Dy maxiter=3D511 inside=3D0
  outside=3Dsumm periodicity=3D0
  colors=3D000ZF0<6>gN6iP7iQ7<6>pXEpYEqZFq_Gr`H<2>tcKudLudLueM<22>zzc0FK<=
48>\
  rwzC0S<48>ptz0PF<48>mzrP67<48>zww000<3>000 cyclerange=3D1/250
  }

sg10-0203          { ; .                                    t=3D  0:31:17=
=2E49
                     ; Copyright Sylvie Gallet, Mar 15, 1998
                     ; <[e-mail]>
                     ; t=3Dcalc time using a Pentium 166 at 1600 x 1200
  reset=3D1960 type=3Dformula formulafile=3Dgallet10.frm
  formulaname=3DGallet-10-02 passes=3D1
  corners=3D0.609461737/0.625555433/0.633289578/0.64535985
  params=3D0.3/1000/0.02/0/5/50 float=3Dy maxiter=3D1023 inside=3D0
  outside=3Dsumm periodicity=3D0
  colors=3D000ZF0<6>gN6iP7iQ7<6>pXEpYEqZFq_Gr`H<2>tcKudLudLueM<22>zzc0FK<=
48>\
  rwzC0S<48>ptz0PF<48>mzrP67<48>zww000<3>000 cyclerange=3D1/250
  }

sg10-0204          { ; .                                    t=3D  0:21:27=
=2E56
                     ; Copyright Sylvie Gallet, Mar 15, 1998
                     ; <[e-mail]>
                     ; t=3Dcalc time using a Pentium 166 at 1600 x 1200
  reset=3D1960 type=3Dformula formulafile=3Dgallet10.frm
  formulaname=3DGallet-10-02 passes=3D1
  corners=3D0.5763041752/0.6038251267/1.165412336/1.176458896/0.580909369=
2/1\
  .159272077 params=3D0.25/1000/0.005/0.005/5/50 float=3Dy maxiter=3D1023=

  inside=3D0 outside=3Dsumm periodicity=3D0
  colors=3DAA0AF0<28>IK6IK6JL7KM7<15>W`HXaIYbJZcKZcL<29>yyxzzzzzz<41>rdGq=
cEo\
  bE<11>SH6QF5NF5<4>8I0<2>9I19J1AJ2AK2BK3<26>RXJSYKTZM<27>xyxzzzyyx<18>oh=
N\
  ngLmfKleJ<13>VS0000<3>000 cyclerange=3D1/250
  }

sg10-0205          { ; .                                    t=3D  0:22:07=
=2E60
                     ; Copyright Sylvie Gallet, Mar 15, 1998
                     ; <[e-mail]>
                     ; t=3Dcalc time using a Pentium 166 at 1600 x 1200
  reset=3D1960 type=3Dformula formulafile=3Dgallet10.frm
  formulaname=3DGallet-10-02 passes=3D1
  corners=3D0.5772222692/0.6024069008/1.162908107/1.178565807/0.578773040=
3/1\
  .160840412 params=3D0.25/1000/0.005/0.005/5/50 float=3Dy maxiter=3D1023=

  inside=3D0 outside=3Dsumm periodicity=3D0
  colors=3D038038<30>prw<16>JLPGIMGIM<26>bdhceidfjdfjegkfhl<16>uvzddh<23>=
ttw\
  uuxvvywwzwwz<20>idiUKK<30>ploqmqplp<15>ZQSG9A<48>upuG22<3>F00
  cyclerange=3D1/250
  }


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Date: Sun, 15 Mar 1998 12:41:35 -0800
From: Wizzle <[e-mail]>
Subject: (fractint) Colormaps Received and Evaluated

I have received maps from Linda, Bud, Marie Drozis, Kerry (incomprehensible
to me), Damien, Morgan Owens and Sylvie. Did I miss anyone?

If anyone besides Kerry sent me a list of numbers (which I thought were
just a mistake), please re-submit the maps to me......remember that I am
very simple minded. I did not realize that numbers meant maps.

Progress to date.....

I've sorted Linda's, Bud's, Damien's and Marie's maps into the categories.
I only got 5 maps from Damien...is that right? Sylvie and Morgan's
submissions should be sorted by the end of today...so see???? it's not that
bad of a job.

All the maps are GREAT, BTW......if I "cut" a map it's because I'm getting
a way lot of great stuff!!!!

A note......making up the rules here as we go......if you adore a map
currently in the standard fractint set...please submit it even if you are
not the author. My idea is to have a technically superior set of maps to
make all of your fractals glorious.

Tim reminded me to remind you that any map submitted will flounder into the
public domain.....so don't submit anything you think you could copyright. I
suspect that after the upcoming nomenclature debate is done....the maps
will lose any sense of identity. I too like maps I can identify easily.
Won't it be nice when we have long filenames some day? <<hint hint to the
programming division>>.

Angela

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Date: Sun, 15 Mar 1998 12:41:25 -0800
From: Mark Christenson <[e-mail]>
Subject: Re: (fractint) Colormaps

At 12:41 PM 3/15/98 -0800, Wizzle wrote:
>Tim reminded me to remind you that any map submitted will flounder into the
>public domain.....so don't submit anything you think you could copyright.

Is this even possible?  I know good maps are definitely products of
considerable effort, but I didn't think you could copyright a color
scheme.  When applied to a copyrighted image or registered
trademark, it's a different story...

Bud


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Date: Sat, 14 Mar 1998 19:36:26 -0800
From: "Compaq Customer" <[e-mail]>
Subject: Re: (fractint) Color Maps

Here's my two cents worth:

Wizzle would like us to submit them with an identifying name.  She gave
examples like wizzle1.map, carlson2.map, etc. (I used Lindaxxx.map, since
gumbycat takes us the whole 8 digits and leaves no room for numbers.)
Given Wizzle's volunteer status on this project, I think we should comply
with her wishes, rather than pursue our own direction and thereby cause her
additional work.

However, once the maps are chosen, then maybe the authors could elect to
keep the name under which that map was submitted, or change it.

Whatever we decide, I think we must ask Wizzle, not dictate to her, how she
performs her volunteer function.

So . . . Wizzle . . . what to you think?
Linda

> Kragen wrote:
> >
> > Perhaps it would be better to let the authors decide what to name the
> > maps, allowing them to choose either self-promoting, creative, or
> > descriptive names -- or whatever else they choose.



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

Date: Sat, 14 Mar 1998 23:43:38 -0600
From: Lavondyss <[e-mail]>
Subject: (fractint) Nove formula

Paul Derbyshire,

I like your Nova formulas, they rock!!! I used the one for Fractint, but it's seems
to be jumbled or garbled when I use the floating point algorithm. I do not like the
looks of it with the it. Do you have a better formula? Or do I have to alter the
program myself? Becuase I have no clue how. I think I might fudge up the formula
even worse. Thanx in advanced.

- -Lav





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

Date: Sun, 15 Mar 1998 13:05:19 -0800
From: Wizzle <[e-mail]>
Subject: Re: (fractint) Colormaps

It is probably not possible any more than it is possible to copyright a
recipe......a book of recipes...yes....but a single one..no.  Nor can a
math formula be copyrighted....along with a bunch of other stuff that can't
be. But people persist in thinking they can copyright anything that is
applied to paper.

At 12:41 PM 3/15/98 -0800, you wrote:
>At 12:41 PM 3/15/98 -0800, Wizzle wrote:
>>Tim reminded me to remind you that any map submitted will flounder into the
>>public domain.....so don't submit anything you think you could copyright.
>
>Is this even possible?  I know good maps are definitely products of
>considerable effort, but I didn't think you could copyright a color
>scheme.  When applied to a copyrighted image or registered
>trademark, it's a different story...
>
>Bud


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Date: Sun, 15 Mar 1998 14:57:07 -0600
From: "Damien M. Jones" <[e-mail]>
Subject: Re: (fractint) Nove formula

Lavondyss,

 - [to Paul Derbyshire]
 - I like your Nova formulas, they rock!!! I used the one for Fractint, but
 - it's seems to be jumbled or garbled when I use the floating point
 - algorithm.

Try turning off periodicity.  Press "g", type "periodicity=no", press RETURN.

Damien M. Jones   \\
[e-mail]  \\  http://www.icd.com/tsd/ (temporary sanity designs)
                    \\  http://www.fractalus.com/ (fractals are my hobby)

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

Date: Sun, 15 Mar 1998 14:58:53 -0600
From: "Damien M. Jones" <[e-mail]>
Subject: Re: (fractint) Colormaps Received and Evaluated

Angela,

 - I only got 5 maps from Damien...is that right?

Yes, I only sent you five maps.  You want more? :)  Most of my maps are
done by hue-rotating a few basic maps that I make using a graphics package,
so I didn't want to overload you with a bunch of maps that were different
color variations of the same light/dark theme.  I can send more.  My maps
tend to be very simple.

Damien M. Jones   \\
[e-mail]  \\  http://www.icd.com/tsd/ (temporary sanity designs)
                    \\  http://www.fractalus.com/ (fractals are my hobby)

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

Date: Sun, 15 Mar 1998 13:13:16 -0800
From: Wizzle <[e-mail]>
Subject: Re: (fractint) Color Maps

Linda...

Thanks...that is right in line with my thinking. Now that I've started the
project it seems we need to go in steps.

1. submit and sort maps
2. get them up for review (I plan on a zipped file and gifs at my site)
3. narrow down the many many wonderful maps submitted to a reasonable
number.....we will prolly need a discussion about what the criteria ought
to be for this....but that is tomorrow's problem.
4. name those maps selected in some reasonable way.

Having gotten introduced to this group during the great Fractint Contest of
1997, I'm sure everyone will have an opinion about steps 3 and 4!!!!!  My
job is to get us that far.....<<grin>>

Angela

At 07:36 PM 3/14/98 -0800, you wrote:
>Here's my two cents worth:
>
>Wizzle would like us to submit them with an identifying name.  She gave
>examples like wizzle1.map, carlson2.map, etc. (I used Lindaxxx.map, since
>gumbycat takes us the whole 8 digits and leaves no room for numbers.)
>Given Wizzle's volunteer status on this project, I think we should comply
>with her wishes, rather than pursue our own direction and thereby cause her
>additional work.
>
>However, once the maps are chosen, then maybe the authors could elect to
>keep the name under which that map was submitted, or change it.
>
>Whatever we decide, I think we must ask Wizzle, not dictate to her, how she
>performs her volunteer function.
>
>So . . . Wizzle . . . what to you think?
>Linda
>
>> Kragen wrote:
>> >
>> > Perhaps it would be better to let the authors decide what to name the
>> > maps, allowing them to choose either self-promoting, creative, or
>> > descriptive names -- or whatever else they choose.




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

Date: Sun, 15 Mar 1998 13:32:34 -0800
From: Wizzle <[e-mail]>
Subject: Re: (fractint) Colormaps Received and Evaluated

I'm posting this reply to the list rather than just to Damien because I
have already discovered some very interesting things by reviewing the maps
submitted.

First and foremost.....people appear to gravitate toward a single
"technical area." By this I mean....long gradient maps....maps with 1,2 or
3 colors, standard gradients, etc. Everyone also seems to have a strong
color preference. I happen to avoid orange and yellow....modifying them in
my maps to peach and light gold.

Hopefully one of the outcomes of the map exercise will be to get us all
trying out new sorts of "stuff." I'm now thinking of zipping the submitted
maps by category rather than as a giant blob so folks can stretch into new
areas. Feedback?

If I was able to sort the maps quickly...one day...it is because I looked
at them from a purely technical standpoint.....how fast did the colors
change....how much black.....were there oddly defined periods or the abrupt
changes that signify stripes? I tried to make no judgements on colors used.

One of the reasons I separated the maps into categories is because that is
a useful way to quickly improve an image. Rather than floundering among
dozens of possibilities.....I check out an image with all my
categories.....then narrow into the ideal map.

I'm learning lots just by looking at your great maps...thanks so much!!!

Angela


At 02:58 PM 3/15/98 -0600, you wrote:
>Angela,
>
> - I only got 5 maps from Damien...is that right?
>
>Yes, I only sent you five maps.  You want more? :)  Most of my maps are
>done by hue-rotating a few basic maps that I make using a graphics package,
>so I didn't want to overload you with a bunch of maps that were different
>color variations of the same light/dark theme.  I can send more.  My maps
>tend to be very simple.
>
>

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

Date: Sun, 15 Mar 1998 23:18:29 +0100
From: abs <[e-mail]>
Subject: (fractint) WinFract --> Bryce2

Hi, friends !
I newly began to use Bryce2 and Vistapro4 to represent in 3D images of
the Mandelbrot set generated with WinFract. I need information on that
maps of colors are the most appropriate. Is somebody able to help me ?
Thanx.

Albert




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

Date: Sun, 15 Mar 1998 15:03:27 -0800
From: Mark Christenson <[e-mail]>
Subject: (fractint) Sender: [e-mail]

comment { commentary by Mark "Bud" Christenson 3/15/98

To those who have been waiting, my apologies; I have been busy,
and it has taken a while to select just one good example for each=20
type.  The .pars are, with one exception, by the author of each=20
formula.

For those with Fractint 19.6, you can copy everything from the=20
start to just before the signature text into a file with the extension
.par, move it to your Fractint directory, and load as usual.   For=20
those with older versions, you will have to copy the parameter sets=20
into a *.par file, delete the frm: prefix from the formulae and copy=20
them into a *.frm file, and load as usual.

I am posting this to the Fractal Art list by request, and to the Fractint=20
list to provide all existing formulae, and one example of each type,=20
in one location.


Enjoy, Bud

P.S.: Sylvie, I only had one example of gravijul-v2 from you, and it=20
wasn't periodic.  I hope you don't mind me using my own, since tiles=20
are one of the formula's coolest features :o)
}

gj11               { ; "Angelica", (c) Mark "Bud" Christenson 2/3/98
  reset=3D1930 type=3Dformula formulafile=3Dbudz.frm formulaname=3Dgravijul
  function=3Dasinh/atanh/atan passes=3Db
  center-mag=3D0/2.46231/0.3521127 params=3D1/0/0/0/2.95/0
  float=3Dy maxiter=3D300 inside=3D200 outside=3Datan
  colors=3D00_<22>S0`<6>eMfhQgiSh<2>n_koblqdmrfn<5>xuvzxxzzz<41>V22U00U11<39=
\
  >btxcvzbtx<4>WkpVinUglTekScjRai<4>MScLQbJO`HM_<5>AAU2451230001K7<2>0K20K\
  00K0<44>0z00z00y0<12>0l00k02j0<20>gE0000kkkFDWNJTRLRTLPVLN
  }

gja1-03a           { ; "Stargate", (c) Mark "Bud" Christenson 3/6/98
  reset=3D1930 type=3Dformula formulafile=3Dbudz.frm formulaname=3Dgravijul-=
a1
  function=3Dsqr/atanh/atan passes=3Dt center-mag=3D0/8.88178e-016/0.4841549
  params=3D1.2/0/0/0.93/0.966/2.2 float=3Dy inside=3D111 outside=3Dreal
  decomp=3D256
  colors=3D200<30>z00<31>000<8>FFFHHHJJJLLLMMMOOO<17>sss<30>222000012<30>0kz=
\
  <30>022000211<30>zsX<31>000
  }

gja2-031           { ; (c) (c) Mark "Bud" Christenson 3/15/98
  reset=3D1930 type=3Dformula formulafile=3Dbudz.frm formulaname=3Dgravijul-=
a2
  function=3Dcos/atanh/atan passes=3Dt
  center-mag=3D-0.82901/0.853874/1.990881 params=3D0.6/1.4/0.5/0.7/2.7/3.5
  float=3Dy inside=3D111 decomp=3D256
  colors=3DLK0<18>d20e10g00i00<8>z00<8>i00g00f00e11<18>MJJKKKKKK<21>cccdddff=
\
  f<6>sss<5>iiigggfffeee<21>LLLKKKKKL<15>5Ta4Ub3Vc3Wd2Xf<2>1_k1am0bo0dq0es\
  <2>0jy0kz0jx<6>0_k0Zi0Yh0Xf1We<18>JLMKKKLKK<18>d`LeaLgbMicN<8>zsX<6>mgQk\
  ePidOhcN<21>KK0 cyclerange=3D0/255
  }

gjv2-14a           { ; "Baroque", (c)  Bud 3/5/98 - formula by Sylvie Gallet
  reset=3D1930 type=3Dformula formulafile=3Dfilist.frm
  formulaname=3Dgravijul-v2 function=3Dtan/log/log passes=3Dt
  center-mag=3D0/0/0.425 params=3D0/1.8/0.7/0.7/6/0 float=3Dy maxiter=3D300
  inside=3D0 decomp=3D256
  colors=3D000<31>zsX<31>000<31>z00<31>000<8>FFFHHHJJJLLLMMMOOO<17>sss<30>22=
\
  2000012<30>0kz<30>022 cyclerange=3D0/255
  }

sg_gravijul-v3_09  { ; Copyright Sylvie Gallet, Mar 03, 1998
                     ; <[e-mail]>
                     ; t=3Dcalc time using a Pentium 166 at 1600 x 1200
  reset=3D1960 type=3Dformula formulafile=3Dsg_gravj.frm
  formulaname=3Dgravijul-v3 function=3Dcotanh/flip/log passes=3D1
  center-mag=3D0/2.77556e-017/0.6987274/0.6283/-18.855/14.713
  params=3D-3.6/0/1/0/3.14159265358979/0 float=3Dy maxiter=3D256 inside=3D0
  decomp=3D256 periodicity=3D0

 }

grav2u01          { (c)  Philip. DiGiorgi - Mar '98
                     ; Generated on a K6-266 at 1600x1200
  reset=3D1960 type=3Dformula formulafile=3Dgrav.frm formulaname=3Dgravijul_=
2u
  function=3Dcabs/acosh/abs/log passes=3D1
  center-mag=3D0/4.44089e-016/0.3854591/1/180 params=3D0.6/0.9/1/0/0.15/1
  float=3Dy maxiter=3D300 inside=3D0 decomp=3D256 periodicity=3D0
  colors=3DB36<10>UAHWBIYDK<24>zzz<21>000801<22>801801A44<12>Umc<5>zzz<6>Yof=
\
  UmcSi`<10>A55812812<9>634634533<14>00000S<21>77u<7>zzz<15>55f<12>22L11K1\
  1I00G00G10G000<8>000000100201<2>412513513513<13>513613824A25
  cyclerange=3D0/255
  }

; *** start formulae

frm:gravijul { ; generalized r^(-2) by Mark "Bud" Christenson 1/25/98
; defaults: p1 =3D (1,0) p2 =3D (0,0) p3 =3D (4,0)
   z =3D pixel:

   w =3D fn1(z)
   z =3D fn3(p1/fn2(w*w)) + p2
    |z| < p3
  }

frm:gravijul-v2 { ; Variation on Mark Christenson's gravijul by Sylvie=
 Gallet
   z =3D pixel :
   w =3D fn1(real(z)) , x =3D fn3(p1/fn2(w*w))
   w =3D fn1(imag(z)) , y =3D fn3(p1/fn2(w*w))
   z =3D x + flip(y) + p2
    |z| < p3
  }

frm:gravijul-v3 { ; Variation on Mark Christenson's gravijul by Sylvie=
 Gallet
   z =3D pixel:
   w =3D fn1(z)
   z =3D fn3(fn2(w*w)^p1) + p2
    |z| < p3
  }

frm:gravijul-a1 { ; generalized r^(-2) by Mark "Bud" Christenson 3/6/98
; defaults: p1 =3D (1,0) p2 =3D (0,1) p3 =3D (1,4)
  q4 =3D real(p2)
  q2 =3D p1
  q1 =3D imag(p2) ; new knob 1
  q3 =3D real(p3) ; new knob 2
  q5 =3D imag(p3) ; bailout
   z =3D pixel:

   v =3D fn1(z)
   w =3D q1*(v*v)
   z =3D q3*fn3(q2/fn2(w)) + q4
    |z| < q5
  }

frm:gravijul-a2 { ; generalized r^(-2) by Mark "Bud" Christenson 3/6/98
; favors p2
; defaults: p1 =3D (1,1) p2 =3D (0,0) p3 =3D (1,4)
  q4 =3D p2
  q2 =3Dreal(p1)
  q1 =3D imag(p1) ; new knob 1
  q3 =3D real(p3) ; new knob 2=7F
  q5 =3D imag(p3) ; bailout
   z =3D pixel:

   v =3D fn1(z)
   w =3D q1*(v*v)
   z =3D q3*fn3(q2/fn2(w)) + q4
    |z| < q5
  }

frm:gravijul_2u { ; Variation of gravijul formula - Philip DiGiorgi 3/98
     ; Original formula by Mark Christenson
  bailout =3D imag(p3), k =3D real(p3)
  z =3D abs(pixel):
  x =3D real(z), y =3D imag(z)
  w =3D fn1(x) + k*y, v =3D fn1(y) + k*x
  u =3D fn2(w + flip(v))
  z =3D fn4(p1/fn3(u*u)) + p2
  |z| < bailout
}



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End of fractint-digest V1 #134
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