Warp wrote:

>  Don't confuse the 4-dimensional julia fractals (which the julia_fractal
>object is) with regular 2-dimensional julia fractals.
>  If you want regular 2-dimensional julia fractals, there's a pattern for
>that in MegaPov.

        Is that anything like the mandel pattern in standard official
PovRay?

Post a reply to this message

Pete <Pet### [at] nymaliasnet> wrote:
:>  If you want regular 2-dimensional julia fractals, there's a pattern for
:>that in MegaPov.

:         Is that anything like the mandel pattern in standard official
: PovRay?

  It's exactly like mandel in official povray.

  But it (and mandel as well) has extra coloring options.
  There are also many more fractal patterns: mandel3, mandel4, julia3, julia4,
magnet1m, magnet1j, magnet2m and magnet2j.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):_;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

Post a reply to this message

On 22 Oct 2000 20:26:57 -0500, Pete <Pet### [at] nymaliasnet> wrote:

>>  Don't confuse the 4-dimensional julia fractals (which the julia_fractal
>>object is) with regular 2-dimensional julia fractals.
>>  If you want regular 2-dimensional julia fractals, there's a pattern for
>>that in MegaPov.
>
>        Is that anything like the mandel pattern in standard official
>PovRay?

Yes, it's much along the same lines. Warp coded it, as well as a few
other types of fractals and their parameters.


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] usanet
TAG      e-mail : pet### [at] tagpovrayorg

Post a reply to this message

Peter Popov wrote:

> >        Is that anything like the mandel pattern in standard official
> >PovRay?
> 
> Yes, it's much along the same lines. Warp coded it, as well as a few
> other types of fractals and their parameters.

  Warps Mandelbrot shape code
  camera{location<1,2,2>look_at 0}light_source{z*9+y*9,1}#local Z=-1;#while(Z<1)
  #local X=-2;#while(X<1)#local r=X;#local i=Z;#local n=0;#while(n<1&r*r+i*i<4)
  #local a=2*r*i+Z;#local r=r*r-i*i+X;#local i=a;#local n=n+.05;#end sphere{
  <X,n/2,Z>.02 pigment{rgb<1,n,0>}}#local X=X+.02;#end#local Z=Z+.02;#end


  Mark Wagner's - requires mega-pov 0.5
  camera{location<yes,yes+on,yes+true> look_at -u }light_source{9-9*x
  yes}#declare Z=-true;#while(Z<on)#declare X=-2;#while(X<true)#declare
  r=X;#local i=Z;#version clock;#while((version<true)&(((r*r)+(i*i))<4))#local
  a=((2*r*i)+Z);#local r=((r*r)-(i*i)+X);#local i=a;#version
  (version+.05);#end sphere{<(X),(.5*version),(Z)>.02 pigment{ color
  ((z*version)+v+(x*(1-version)))}}#declare X=(X+.02);#end#local
  Z=(Z+.02);#end


-- 
Ken Tyler - 1400+ POV-Ray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

Post a reply to this message

I think that Peter was talking about the fractal patterns (coded in the
povray source code).
  For example:

 pigment
 {
    julia <0.353, 0.288> 30
    color_map { [0 rgb 0][0.2 rgb x][0.4 rgb x+y][1 rgb 1][1 rgb 0] }
    fractal_interior_type 1, 1
 }

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):_;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

Post a reply to this message

On 26 Oct 2000 04:14:30 -0400, Warp <war### [at] tagpovrayorg> wrote:

>  I think that Peter was talking about the fractal patterns (coded in the
>povray source code).
>  For example:
>
> pigment
> {
>    julia <0.353, 0.288> 30
>    color_map { [0 rgb 0][0.2 rgb x][0.4 rgb x+y][1 rgb 1][1 rgb 0] }
>    fractal_interior_type 1, 1
> }

Yup, these are the ones I had in mind.


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] usanet
TAG      e-mail : pet### [at] tagpovrayorg

Post a reply to this message

Peter Popov wrote:
> 
> On 26 Oct 2000 04:14:30 -0400, Warp <war### [at] tagpovrayorg> wrote:
> 
> >  I think that Peter was talking about the fractal patterns (coded in the
> >povray source code).
> >  For example:
> >
> > pigment
> > {
> >    julia <0.353, 0.288> 30
> >    color_map { [0 rgb 0][0.2 rgb x][0.4 rgb x+y][1 rgb 1][1 rgb 0] }
> >    fractal_interior_type 1, 1
> > }
> 
> Yup, these are the ones I had in mind.

I knew that but as my examples show there are always alternatives :)

-- 
Ken Tyler - 1400+ POV-Ray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

Post a reply to this message