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28 Apr 2024 21:01:46 EDT (-0400)
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From: Paul Daniel Jones
Subject: Re: 72 Antiblobs (120kB + 22kB)
Date: 23 Aug 2000 08:07:11
Message: <39A3BECC.801732A1@psu.edu>
Kinda looks like Buckminster-who-cares-arene, a buckyball....


very nice.

code maybe??

paul


Tor Olav Kristensen wrote:

> Because my employer has sent me travelling a lot lately,
> I haven't had much time for rendering the past weeks. =(
>
> But today I found some time to try out an idea I have.
>
> I have made a macro in plain POV (of coarse :) that makes
> blobs that seems to repel each other; thus "Antiblobs"
>
> The first image contains 72 such blobs and the second
> image contains 8.
>
> Please comment !
>
> Tor Olav
> --
> mailto:tor### [at] hotmailcom
> http://www.crosswinds.net/~tok/tokrays.html
>
>   ------------------------------------------------------------------------
>  [Image]  [Image]

--
-------------------------------------------#
Paul Daniel Jones
307 Chandlee Laboratory
Penn State University
814-865-2090
pdj### [at] psuedu

http://research.chem.psu.edu/glassgrp/paul
--------------------------------------------#


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From: Josh English
Subject: Re: 72 Antiblobs (120kB + 22kB)
Date: 23 Aug 2000 10:58:05
Message: <39A3E69D.C7BCCDD3@spiritone.com>
These are great! In that second picture I find it hard to beleive that there
are only 8 components to the blob... sure it can be used for a bucky ball, but
also a really really big bug eye...

Please share the code on this one, I'd love to see it.

Josh

Tor Olav Kristensen wrote:

> Because my employer has sent me travelling a lot lately,
> I haven't had much time for rendering the past weeks. =(
>
> But today I found some time to try out an idea I have.
>
> I have made a macro in plain POV (of coarse :) that makes
> blobs that seems to repel each other; thus "Antiblobs"
>
> The first image contains 72 such blobs and the second
> image contains 8.
>
> Please comment !
>
> Tor Olav
> --
> mailto:tor### [at] hotmailcom
> http://www.crosswinds.net/~tok/tokrays.html
>
>   ------------------------------------------------------------------------
>  [Image]  [Image]

--
Josh English -- Lexiphanic Lethomaniac
eng### [at] spiritonecom
The POV-Ray Cyclopedia http://www.spiritone.com/~english/cyclopedia/


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From: Paul Jones
Subject: Re: 72 Antiblobs (120kB + 22kB)
Date: 23 Aug 2000 11:39:03
Message: <39A3EF79.3C282D29@psu.edu>
now that I think about it, if you could animate this, like a dividing
cells or something..... maybe start with one, then it grows and grows
into a horrific monster.....

:-)

-paul

Tor Olav Kristensen wrote:
> 
> Because my employer has sent me travelling a lot lately,
> I haven't had much time for rendering the past weeks. =(
> 
> But today I found some time to try out an idea I have.
> 
> I have made a macro in plain POV (of coarse :) that makes
> blobs that seems to repel each other; thus "Antiblobs"
> 
> The first image contains 72 such blobs and the second
> image contains 8.
> 
> Please comment !
> 
> Tor Olav
> --
> mailto:tor### [at] hotmailcom
> http://www.crosswinds.net/~tok/tokrays.html
> 
>   ------------------------------------------------------------------------
>  [Image]  [Image]

-- 



--------------------------------------------------}
Paul Daniel Jones
The Pennslyvania State University

pdj### [at] psuedu
http://research.chem.psu.edu/glassgrp/paul

       C            The way is near, but men
     // \           seek it afar. It is in the
    N    N          easy things, but men seek it
    |    ||         in the difficult things.
    C    C          -Menicius
     \\  /
       C
--------------------------------------------------}


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From: Tor Olav Kristensen
Subject: Re: 72 Antiblobs (120kB + 22kB)
Date: 23 Aug 2000 13:35:08
Message: <39A40A19.D6F760C@online.no>
ddombrow wrote:

> Very impressive Tor!

Thank you !

> I would be interested to hear what you think insofar as practical uses for
> this macro ...

First of all I thought about a new way to make a soccer ball  =)

But then frog eggs and pavement stones also came to my mind.


> Might be interesting to see if you could use it to simulate
> deformations in the collision of objects, or other neat scientific stuff
> like that.

I'm sorry, but my macro does not attempt to model any forces
acting on the blobs. (So my macro can not make them move.)

It only does some calculations on how to modify each the blob
with negative strength components so that close blobs touches
each other at only one point.

(The positions, radii and strength of each blob has to be calculated
by some other code and then passed to my macro in arrays.)

But maybe it would be possible to use my macro with Chris
Huff's particle system patch to make fancy animations of blobs
colliding, being deformed, and then bouncing apart from each
other again.


Tor Olav
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html


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From: Tor Olav Kristensen
Subject: Re: 72 Antiblobs (120kB + 22kB)
Date: 23 Aug 2000 13:58:04
Message: <39A40F83.DF052932@online.no>
Paul Daniel Jones wrote:

> Kinda looks like Buckminster-who-cares-arene, a buckyball....

This is because it really is a Buckminsterfullerene-I-care with
some extra balls in the "middle" of each pentagon and hexagon.

Buckyball:
12 pentagons with a "ball" in each corner: 60 balls

Plus:
12 pentagons with a "ball" in each middle: 12 balls
20 hexagons with a "ball" in each middle: 20 balls

(60 + 12 + 20 "balls")


> very nice.

Thanks !


> code maybe??

I'll post it to news://news.povray.org/povray.text.scene-files


Tor Olav
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html


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From: Rick [Kitty5]
Subject: Re: 72 Antiblobs (120kB + 22kB)
Date: 23 Aug 2000 14:35:51
Message: <39a41987@news.povray.org>
They look like clumps of cells or organic matter - how would these aunty
blobs works for molecular models?

Rick


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From: Tor Olav Kristensen
Subject: Re: 72 Antiblobs (120kB + 22kB)
Date: 23 Aug 2000 14:43:59
Message: <39A41A46.886CEEBA@online.no>
Josh English wrote:

> These are great!

Thank you !


> In that second picture I find it hard to beleive that there
> are only 8 components to the blob...

Maybe I was a little bit unclear about that:

It really is 8 blobs in that image, but each of the 8 blobs
consists of one component with positive strength and
several other components with negative strength.


> sure it can be used for a bucky ball, but
> also a really really big bug eye...

Ahh ... good idea !


> Please share the code on this one, I'd love to see it.

I have posted it to:
news://news.povray.org/povray.text.scene-files

Here it is:
news://news.povray.org/39A41970.112A945C%40online.no


Tor Olav
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html


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From: Tor Olav Kristensen
Subject: Re: 72 Antiblobs (120kB + 22kB)
Date: 23 Aug 2000 15:30:45
Message: <39A4252F.282E76BC@online.no>
Paul Jones wrote:

> now that I think about it, if you could animate this, like a dividing
> cells or something..... maybe start with one, then it grows and grows
> into a horrific monster.....

Hmmm ... interesting idea ... I'll have to muse over this a little bit.

Maybe something like this could be done with a modified version
of my macro ...

... but I'm not quite sure how a cell looks like when it is about to
divide into two cells.

Is it like a "normal" blob with two sphere components ?

Do you (or anyone else in here) know ?

(But I don't think I would have the patience to model the
complete evolution of a monster with POV-script !  ;)

Thank you for commenting.


Tor Olav
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html


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From: 25ct
Subject: Re: 72 Antiblobs (120kB + 22kB)
Date: 23 Aug 2000 15:38:02
Message: <39a4281a@news.povray.org>
"Tor Olav Kristensen" <tto### [at] onlineno> wrote in message
news:39A4252F.282E76BC@online.no...

> Is it like a "normal" blob with two sphere components ?
> Do you (or anyone else in here) know ?
> Thank you for commenting.
>
>
> Tor Olav
> --
> mailto:tor### [at] hotmailcom
> http://www.crosswinds.net/~tok/tokrays.html
>
>

     Tor,  you are very, very, close!

                 ~Steve~


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From: Tor Olav Kristensen
Subject: Re: 72 Antiblobs (120kB + 22kB)
Date: 23 Aug 2000 15:41:20
Message: <39A427AE.970519F1@online.no>
"Rick [Kitty5]" wrote:

> They look like clumps of cells or organic matter

I thought I would try to give them an organic texture, but I don't
know how to do that, so I chose a stone texture instead.


> - how would these aunty blobs works for molecular models?

Aunty ?

I'm not sure what kind of molecular models you would like.

Do you have any other images or drawings of such models ?


Tor Olav
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html


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