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I was curious about how the turbulence, frequency,
omega, and lambda values works for the leopard pattern.
This image shows such a leopard pattern as a iso surface.
These are the settings:
turbulence 0.2
omega 0.6
lambda 0.4
frequency 3
Does anyone know if the image should look like this ?
I find it odd that there are "openings" and that these
always face the camera.
Tor Olav
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html
Post a reply to this message
Attachments:
Download 'leopardonions.jpg' (96 KB)
Preview of image 'leopardonions.jpg'
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"Tor Olav Kristensen" <tor### [at] onlineno> wrote in message
news:3A055A9D.E05710B2@online.no...
>
> turbulence 0.2
> omega 0.6
> lambda 0.4
> frequency 3
>
> Does anyone know if the image should look like this ?
>
> I find it odd that there are "openings" and that these
> always face the camera.
I haven't a clue as to what a leopard isosurface should look like.
What I do know is that you left out one of the turbulence keywords: octaves.
It defaults to 3 and I'd say that you would see the pattern close were you to
use octaves 1, but that's only a guess.
Bob
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In article <3a055f8c@news.povray.org>, "Bob H."
<per### [at] aolcom?subject=PoV-News:%20&body=Relating%20to%20POV-Ra
y:> wrote:
> It defaults to 3
Octaves defaults to 6.
--
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/
<><
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It most definately should look like that, because that looks really
neat.
>
> Does anyone know if the image should look like this ?
>
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"Chris Huff" <chr### [at] maccom> wrote in message
news:chrishuff-80808D.09004905112000@news.povray.org...
>
> Octaves defaults to 6.
Thanks for correcting me Chris, just now looked it up.
I was going by what I had believed since the time of POV-Ray 2.0, which btw was
6 for that version also.
Could have sworn I always read that it was 3, although maybe from looking at
all the wood patterns. Many textures probably use octaves 3. But guess I
can't be believed :-|
Bob
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I'm really enjoying this sequence of pictures, such fascinating worlds.
Mick
"Tor Olav Kristensen" <tor### [at] onlineno> wrote in message
news:3A055A9D.E05710B2@online.no...
>
> I was curious about how the turbulence, frequency,
> omega, and lambda values works for the leopard pattern.
>
> This image shows such a leopard pattern as a iso surface.
>
> These are the settings:
>
> turbulence 0.2
> omega 0.6
> lambda 0.4
> frequency 3
>
>
> Does anyone know if the image should look like this ?
>
> I find it odd that there are "openings" and that these
> always face the camera.
>
>
> Tor Olav
> --
> mailto:tor### [at] hotmailcom
> http://www.crosswinds.net/~tok/tokrays.html
----------------------------------------------------------------------------
----
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"Bob H." wrote:
>
> I haven't a clue as to what a leopard isosurface should look like.
> What I do know is that you left out one of the turbulence keywords: octaves.
> It defaults to 3 and I'd say that you would see the pattern close were you to
> use octaves 1, but that's only a guess.
Yes, you're right.
Octaves was one of the keywords I wanted
to see the effect of, but I see now that I
have used the frequency keyword instead.
I think I must have mixed it all up in my
mind. :(
And now I'm a little bit confused -
I think I need to look up these two keywords
again, just to convince myself that I do know
the difference.
And then I'll do test renders to see the
effects of different octaves values.
Thank you Bob.
Regards,
Tor Olav
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html
Post a reply to this message
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Ross Litscher wrote:
>
> It most definately should look like that, because that looks really
> neat.
> ...
:)
Thanks.
Tor Olav
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html
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Mick Hazelgrove wrote:
>
> I'm really enjoying this sequence of pictures, such fascinating worlds.
Thank you Mick.
I can't help wondering how many more different
_types_ of iso-pattern world's I'll have patience
to explore with POV-Ray on a Pentium @100MHz
I'm sure there must be an infinite number of
different iso-pattern world types just waiting
to be rendered.
Regards from
Tor Olav, who's longing for a K7 @1GHz :)
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html
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Tor Olav Kristensen wrote:
> I can't help wondering how many more different
> _types_ of iso-pattern world's I'll have patience
> to explore with POV-Ray on a Pentium @100MHz
> Regards from
> Tor Olav, who's longing for a K7 @1GHz :)
So how long did this take to render on your P-I 100 ?
--
Ken Tyler
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