POV-Ray : Newsgroups : povray.binaries.images : Isosurface from Warped Pigment : Re: Isosurface from Warped Pigment Server Time
8 Aug 2024 12:24:16 EDT (-0400)
  Re: Isosurface from Warped Pigment  
From: Ross
Date: 7 Jul 2005 13:25:35
Message: <42cd658f$1@news.povray.org>
"PM 2Ring" <nomail@nomail> wrote in message
news:web.42ccd87ced5cbe3aad93754b0@news.povray.org...
> "Ross" <rli### [at] everestkcnet> wrote:
> > "PM 2Ring" <nomail@nomail> wrote in message
> > news:web.42cbc57df9e477ad30757dd90@news.povray.org...
> > > In the General group, Ross posted an interesting warped pigment
function,
> > > used to define a texture map & surface normal. Here is a version using
an
> > > isosurface.
> >
> > I had tried that too, but i couldn't get mine to look that nice. I had
to
> > crank up the max gradient. i'm not super familiar with isosurfaces yet.
did
> > you just do something like "f_sphere(...)+myPigmentFunction(...).gray"?
>
> Almost. See the other thread (in the General group) for the source. Avoid
> using .gray when possible. It requires more calculation than a simple .x,
> and they result in exactly the same thing if you're using a greyscale
> colour_map.
>
> > by the way, i can't take any of the credit for the multiple warp
technique.
> > someone here used it this year for a really hot looking media fire. it
> > looked amazing. I only used it for pigments instead of densities. i
can't
> > find who it was now.
>
> Maybe Warp?
>

Found it, it was Loki with a posting entitled "Another one..." from May 6,
2005 and a different image in the same thread later that day.


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