I noticed very different effects when making a noise3d-based object
between MegaPov and Superpatch.  I discovered a neat surface in
Superpatch and thought I'd try shooting some photons through it.
Unfortunately, Meg gave me some ugly results, even before I made it
transparent. . .

Any thoughts?

Here is the code used:

#include "colors.inc"
#declare fnoise=55;
#declare funk=
isosurface{
        function{y/50-noise3d(x/fnoise,y/fnoise,z/fnoise)
                }
           accuracy 0.01
           threshold 0.0
           bounded_by {
                      sphere{0,250}
                      }
        pigment{Red + Green/3}
        finish{ambient 0.2}
          }

object {
funk
pigment {Red + Green/3}
finish {ambient 0.2}
        }
camera {
  location  <0,200,-800>
  look_at <0,10,0>
  angle 40//35

}


light_source{<-40,400,-5000>rgb 1.2}
light_source{<2000,0,-35>rgb .2}

light_source{
 <0,200,-999> rgb .2}

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Attachments:
Download 'meganoise.jpg' (28 KB) Download 'noisepatch.jpg' (19 KB)

Preview of image 'meganoise.jpg'

Preview of image 'noisepatch.jpg'

"Greg M. Johnson" <"gregj;-)56590"@aol.c;-)om> wrote in message
news:388bbf59@news.povray.org...
>
> I noticed very different effects when making a
> noise3d-based object between MegaPov and
> Superpatch.  I discovered a neat surface in
> Superpatch and thought I'd try shooting some
> photons through it.  Unfortunately, Meg gave me
> some ugly results, even before I made it
> transparent. . .
>
> Any thoughts?

It looks like you need a 'bounded_by' sphere on the Mega version.

Eric
---------------
"A wise and frugal government, which shall restrain men from injuring one
another, which shall leave them otherwise free to regulate their own
pursuits of industry and improvement, and shall not take from the mouth of
labor the bread it has earned.  This is the sum of good government."
     - Thomas Jefferson
     - First inaugural address, 1801
---------------
http://www.ametro.net/~ericfree

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SAME CODE.

Eric Freeman wrote:

> "Greg M. Johnson" <"gregj;-)56590"@aol.c;-)om> wrote in message
> news:388bbf59@news.povray.org...
> >
> > I noticed very different effects when making a
> > noise3d-based object between MegaPov and
> > Superpatch.  I discovered a neat surface in
> > Superpatch and thought I'd try shooting some
> > photons through it.  Unfortunately, Meg gave me
> > some ugly results, even before I made it
> > transparent. . .
> >
> > Any thoughts?
>
> It looks like you need a 'bounded_by' sphere on the Mega version.
>
> Eric
> ---------------
> "A wise and frugal government, which shall restrain men from injuring one
> another, which shall leave them otherwise free to regulate their own
> pursuits of industry and improvement, and shall not take from the mouth of
> labor the bread it has earned.  This is the sum of good government."
>      - Thomas Jefferson
>      - First inaugural address, 1801
> ---------------
> http://www.ametro.net/~ericfree

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"Greg M. Johnson" wrote:
> 
> SAME CODE.

You should probably bring this up in the unofficial patches group.
Nathan and Ron both read that group with greater frequency than
this one. Just let then know you posted the comparison images here.

-- 
Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

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I'm really ignorant at Netscape. Could you please add a link to that ng at
povray.org/groups.html
?

Ken wrote:

> "Greg M. Johnson" wrote:
> >
> > SAME CODE.
>
> You should probably bring this up in the unofficial patches group.
> Nathan and Ron both read that group with greater frequency than
> this one. Just let then know you posted the comparison images here.
>
> --
> Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
> http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

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"Greg M. Johnson" wrote:
> 
> I'm really ignorant at Netscape. Could you please add a link to that ng at
> povray.org/groups.html

It is already listed there as povray.unofficial.patches.

 Either that of you can simply place the highlight bar on news.povray.org
when in the netscape message center and hit the subscribe button. This will
bring up a full list of the groups on this server that you can subscribe
to. Just place a check mark next to the groups that interest you and close
the subcribe window. The new groups should now be available to you.


-- 
Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

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> I'm really ignorant at Netscape. Could you please add a link to that ng at
> povray.org/groups.html
> ?

To subscribe:
Right-click the ng URL in the tree on the left, and select Subscribe to
Newsgroups.
To add a server:
Edit->Preferences->Mail & Newsgroups->Newsgroup Servers->Add

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Homepage: http://www.faricy.net/~davidf/
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