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Earlier today I messed around a little
bit with Peter Popov's code for
"one of those twisted thingies"
And from his code I learned something
that some (or many ?) of you others
probably already knew:
Components in a Blob can be Scaled and
Transformed individually !
Very useful ! Thank you Peter.
This is one of the images that came out.
(I rendered it a little to dark, so
instead of waiting for another 4 hours
rendering, I adjusted the tonal balance
a little bit.)
Tor Olav
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html
Post a reply to this message
Attachments:
Download 'twistedtorus02.jpg' (22 KB)
Preview of image 'twistedtorus02.jpg'
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Wow... I like it... What did you do...?
Tor Olav Kristensen wrote:
> Earlier today I messed around a little
> bit with Peter Popov's code for
> "one of those twisted thingies"
>
> And from his code I learned something
> that some (or many ?) of you others
> probably already knew:
>
> Components in a Blob can be Scaled and
> Transformed individually !
>
> Very useful ! Thank you Peter.
>
> This is one of the images that came out.
>
> (I rendered it a little to dark, so
> instead of waiting for another 4 hours
> rendering, I adjusted the tonal balance
> a little bit.)
>
> Tor Olav
> --
> mailto:tor### [at] hotmailcom
> http://www.crosswinds.net/~tok/tokrays.html
>
> ------------------------------------------------------------------------
> [Image]
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>
> And from his code I learned something
> that some (or many ?) of you others
> probably already knew:
>
> Components in a Blob can be Scaled and
> Transformed individually !
Grrrr... i knew that and never managed such an interesting object with that
knowledge ;)
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On Tue, 04 Jul 2000 02:13:44 +0200, Tor Olav Kristensen
<tor### [at] onlineno> wrote:
>Earlier today I messed around a little
>bit with Peter Popov's code for
>"one of those twisted thingies"
Oh no! Zilvah, what have we done?
*runs away*
>Components in a Blob can be Scaled and
>Transformed individually !
Eureka :))
>Very useful ! Thank you Peter.
De nada.
>This is one of the images that came out.
/me likes. Looks like an amoeba of sorts (or so my brother says).
>(I rendered it a little to dark, so
>instead of waiting for another 4 hours
>rendering, I adjusted the tonal balance
>a little bit.)
I thought you were using a Mac and hence the gamma problem. It's a
nice image nonetheless.
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] usanet
TAG e-mail : pet### [at] tagpovrayorg
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[snip]
> >This is one of the images that came out.
>
> /me likes. Looks like an amoeba of sorts (or so my brother says).
Looks more like a Sand Dollar to me. For those who don't know, a Sand
Dollar is an echinoderm (or starfish for the non-biologists out there)
which ends up sold to tourists as a curiosity in various places (I think
my mother brought a couple back from Florida)
Cute image though.
Bye for now,
Jamie,
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But the main body is missing, and that is where the stomach and the mouth
and "Brain" is located... how would it eat?
--
"Yub-Yub!" Lt. Kettch
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> But the main body is missing, and that is where the stomach and the mouth
> and "Brain" is located... how would it eat?
Brain? These are echinoderms we're talking about... :)
They have a pentaradial nerve ring, which is about as close as you get to
a nervous centre.
If I could be bothered, I'd dig out my invertebrates text from my degree
and *really* bore you :)
But I was thinking more of the skeletons which are what get sold to
tourists.
(BTW, don't get me started any more than I am already. It's not a pretty
sight <grin>)
Bye for now,
Jamie.
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Moon47 wrote:
>
> Wow... I like it... What did you do...?
Thank you, but I didn't do much.
I just modified some of Peter's translation
and rotation statements with some cosine values.
See code below.
Tor Olav
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html
#declare Steps = 1500;
#declare MajorRad = 10;
#declare MinorRad = 2;
#declare Turns = 5;
#declare Circumference = 2*pi*MajorRad;
#declare Thickness = 5*Circumference/Steps;
#declare dDegStep = 360/Steps;
#declare dRadStep = 2*pi/Steps;
#declare TwistedTorus =
blob {
threshold 1
#declare Cnt = 0;
#while (Cnt < Steps)
#local RadCnt = Cnt*dRadStep;
#local DegCnt = Cnt*dDegStep;
sphere {
0, 3, 0.125
scale <2*MinorRad, MinorRad*0.5, Thickness>
translate x*MinorRad
rotate 12*cos(Turns*RadCnt)*z
translate MajorRad*x + MinorRad/8*cos(Turns*RadCnt)*y
rotate (DegCnt + 8*cos(Turns*RadCnt))*y
}
#declare Cnt = Cnt + 1;
#end
sturm
}
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Ross Litscher wrote:
>
> >
> > And from his code I learned something
> > that some (or many ?) of you others
> > probably already knew:
> >
> > Components in a Blob can be Scaled and
> > Transformed individually !
>
> Grrrr... i knew that and never managed such an interesting object with that
> knowledge ;)
:| Do not Bite !
In this image the scaling for each blob
component (sphere) is the same.
But how about scaling each blob component
completely independently from all the
others ?
One could for example do the scaling
relative to the components position in
space or relative to a pattern (in
MegaPOV ?) or as functions of a loop
counter or by some trigonometric
functions or ....
But I guess most of this has been done
before. :(
Tor Olav
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html
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Peter Popov wrote:
> ...
> Oh no! Zilvah, what have we done?
> *runs away*
Hmmm ... I wonder who Zilvah is. :)
(None of my searches at Altavista, Excite or
Infoseek produced any results.)
> /me likes. Looks like an amoeba of sorts (or so my brother says).
Thank you.
Tor Olav
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html
Post a reply to this message
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