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From: Tor Olav Kristensen
Subject: Leopard Onions (96KB)
Date: 5 Nov 2000 13:04:54
Message: <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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From: Bob H 
Subject: Re: Leopard Onions (96KB)
Date: 5 Nov 2000 13:24:28
Message: <3a055f8c@news.povray.org>
"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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From: Chris Huff
Subject: Re: Leopard Onions (96KB)
Date: 5 Nov 2000 13:57:37
Message: <chrishuff-80808D.09004905112000@news.povray.org>
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: chrishuff@mac.com, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

<><


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From: Ross Litscher
Subject: Re: Leopard Onions (96KB)
Date: 5 Nov 2000 21:26:55
Message: <3A05D234.7F7D9891@osu.edu>
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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From: Bob H 
Subject: Re: Leopard Onions (96KB)
Date: 6 Nov 2000 08:20:08
Message: <3a0669b8@news.povray.org>
"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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From: Mick Hazelgrove
Subject: Re: Leopard Onions (96KB)
Date: 6 Nov 2000 22:01:39
Message: <3a072a43@news.povray.org>
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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From: Tor Olav Kristensen
Subject: Re: Leopard Onions (96KB)
Date: 7 Nov 2000 01:54:16
Message: <3A076074.74AA5ACE@online.no>
"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


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From: Tor Olav Kristensen
Subject: Re: Leopard Onions (96KB)
Date: 7 Nov 2000 01:55:51
Message: <3A0760D5.65F0A9EF@online.no>
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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From: Tor Olav Kristensen
Subject: Re: Leopard Onions (96KB)
Date: 7 Nov 2000 02:40:54
Message: <3A076B63.E4D5D1A0@online.no>
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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From: Ken
Subject: Re: Leopard Onions (96KB)
Date: 7 Nov 2000 03:05:51
Message: <3A0771E4.42EA6DD5@pacbell.net>
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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