Tsutomu just sent me this so I thought I'd share.
All are abstract images with code.
http://members.jcom.home.ne.jp/tom3d/pov45/ilpov45e.htm
http://members.jcom.home.ne.jp/tom3d/pov46/ilpov46e.htm

G.

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Gilles Tran wrote:
> 
> Tsutomu just sent me this so I thought I'd share.
> All are abstract images with code.
> http://members.jcom.home.ne.jp/tom3d/pov45/ilpov45e.htm
> http://members.jcom.home.ne.jp/tom3d/pov46/ilpov46e.htm

Those look good, similar to some of Friedrich Lohmueller's pictures in
some ways.

Those isosurface functions are not exactly 'easy evening literature' btw -
i usually have to split them into handy chunks before i start to
understand what's going on...

Christoph

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His is one of my favorite websites... very nice mathematical modelling.

--
Douglas C. Eichenberg
dou### [at] nlsnet
http://www.getinfo.net/douge

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Christoph Hormann wrote:

>Those look good, similar to some of Friedrich Lohmueller's pictures in
>some ways.
>
>Those isosurface functions are not exactly 'easy evening literature' btw -
>i usually have to split them into handy chunks before i start to
>understand what's going on...
>
>Christoph
>
Even you?  I don't feel so bad now.  While I was looking at these, I was
thinking -- another weekend down the tubes, trying to figure out what makes
them work.

And I was also thinking, another great idea I never would have thought of.

And, another world of possibilities opening up.

(So many thoughts.)

Gilles, thanks for sharing these.

Tsutomu Higo, if you're reading this, really nice stuff.  Thanks.

Dave Matthews

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>
> Those isosurface functions are not exactly 'easy evening literature' btw -
> i usually have to split them into handy chunks before i start to
> understand what's going on...
>

Before I even read your response, I was thinking to myself, "It's times like
this when I really wish I was smarter..."  ;-)

Most of my isosurface work is based on isoCSG (thank you!) with the various
pigment functions used similar to a normal.  For the first time since
graduating from college 12 years ago, I've actually wished I had more than a
math minor.

--
Jeremy

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"Gilles Tran" <tra### [at] inapginrafr> wrote in news:3f2aa6af$1
@news.povray.org:

> Tsutomu just sent me this so I thought I'd share.
> [...]

Cool stuff on his site, thanks for sharing.  I was looking around his 
site and found the "Hair" under the "CONNECT%" category.  Love it, short 
and simple Povray code, yet brilliant for having come up with it.  I 
wanted to see if it could be easily animated, so I did a short animation 
with it (Windows Media):

http://www3.sympatico.ca/4ad/images/HigoHair.wmv

Cool effect!  And all I did was put a clock variable on lines 26 and 27 
of his "lpcohair.txt" file.  Rendered in less than 3 hours for 300 frames 
at 512x384.
Source file: http://www.asahi-net.or.jp/~nj2t-hg/ilpov5e.htm
Lines 26 and 27 were modified to:
    #declare Xr =Xr+(6+clock*20)*rand(R1);
    #declare Yr =Yr+(6+clock*20)*rand(R1);

Tsutomu has a great mathematical mind's eye.

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None wrote:
> Cool stuff on his site, thanks for sharing.  I was looking around his
> site and found the "Hair" under the "CONNECT%" category.  Love it,
> short and simple Povray code, yet brilliant for having come up with
> it.  I wanted to see if it could be easily animated, so I did a short
> animation with it (Windows Media):
>
> http://www3.sympatico.ca/4ad/images/HigoHair.wmv

Now that is cool!
-- 
Rick

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"Rick [Kitty5]" <spa### [at] kitty5com> wrote in news:3f2e0c57$2
@news.povray.org:

>> [...]
>> http://www3.sympatico.ca/4ad/images/HigoHair.wmv
> 
> Now that is cool!

Thanks,
Cheers!

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"Gilles Tran" <tra### [at] inapginrafr> wrote in message
news:3f2aa6af$1@news.povray.org...
> Tsutomu just sent me this so I thought I'd share.
> All are abstract images with code.
> http://members.jcom.home.ne.jp/tom3d/pov45/ilpov45e.htm
> http://members.jcom.home.ne.jp/tom3d/pov46/ilpov46e.htm
>
> G.
>
> --
>
> **********************
> http://www.oyonale.com
> **********************
> - Graphic experiments
> - POV-Ray and Poser computer images
> - Posters
>
>
How would I contact him?  I also like his work but I need to simplify the
function declarations to make them more accessible.  Here is an example of
what I would do with his golden egg rotation sample:

+ start code +
// INT '03.07 / Yellow
// By Tsutomu HIGO  URL: http://www.asahi-net.or.jp/~nj2t-hg/
// Modified by David Wallace 8/4/2003

#version 3.5;
global_settings {
  max_trace_level 4
  assumed_gamma 2.2
}

camera {
  location <0.5, 2.2, -0.3>
  look_at <-0.3, 0, 0.1>
  angle 120
  }

light_source {<600, 550, 50> color rgb <0.8, 0.8, 0.8>}

#declare Rl=1.5;
#declare Rs=0.1;
#declare Diva=32;
#declare Py=0.3;
#declare Pa=2*pi/Diva;
#declare eps = 1e-6;

#declare vsq = function { x*x+y*y+z*z }
#declare ycir = function { Pa*int(acos(x/sqrt(x*x+z*z+eps))/Pa+1/2) }

isosurface {
  function {
    (pow(x-Rl*             cos(ycir(x,y,z)),2)
    +pow(z-Rl*z/abs(z+eps)*sin(ycir(x,y,z)),2)
    +pow(y-0.3*(int(y/0.3)+0.5),2)-pow(Rs,2))

*(vsq(x,3*y-1.8,z)-1.38*1.38-0.2*cos(25*pi*pow(vsq(x,y-1.38/3-.6,z),2)+pi))
    -0.0004
    }
  threshold 0
  max_gradient 30
  contained_by {box {<-Rl-Rs-0.1, -Rs, -Rl-Rs-0.1>, <Rl+Rs+0.1, 1.8,
Rl+Rs+0.1>}}
  open
  texture {
    pigment {color rgb <1, 0.8, 0>}
    finish {
      ambient 0.3
      diffuse 0.5
      reflection 0.3
      specular 1
      phong 0.5
      brilliance 1
      }
    }
  rotate z*-25 rotate y*10
  no_shadow
}

background {color rgb <0, 0.3, 0.4>}
+ end code +

I only added the vsqr and ycir functions to shorten and simplify the final
function, whose render is identical to the original (I checked).

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Wasn't it David Wallace who wrote:

>How would I contact him?

Some of the source files contain an email address, for example lphsdlpn
on the HOSE% page.

-- 
Mike Williams
Gentleman of Leisure

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