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16 Aug 2024 10:19:51 EDT (-0400)
  to the honor of the Pov/MegaPov developers (Message 11 to 17 of 17)  
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From:
Subject: Re: to the honor of the Pov/MegaPov developers
Date: 14 Mar 2002 15:02:28
Message: <3c9101d4@news.povray.org>
> You'll find several POV-diamond images and links
> to web pages about diamond cuts if you traverse
> the threads that this search will list:
>
> http://news.povray.org/search/?s=Diamond


*lol* it seems that diamonds are traced approx. 10 times a year *g*
I didn't know that diamonds are so popular :-)

Well: my story is: I was looking for something completely different (already
forgot what exactly) and fell over a diamond-ideal-cut-property-picture
showing exact properties of the thing. It was interesting and so I continued
looking for exact physical properties of a diamond (especially IOR) which I
found rather quickly.
You can imagine the rest :-)

BTW: most pictures I saw in these threads were pretty deep cuts which don't
reflect properly. Strange. Either all made the same mistake or they all used
the same model?

regards
SY


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From: Tor Olav Kristensen
Subject: Re: to the honor of the Pov/MegaPov developers
Date: 14 Mar 2002 18:20:48
Message: <3C912F70.286F59B@hotmail.com>

> 
> > You'll find several POV-diamond images and links
> > to web pages about diamond cuts if you traverse
> > the threads that this search will list:
> >
> > http://news.povray.org/search/?s=Diamond
> 
> *lol* it seems that diamonds are traced approx. 10 times a year *g*
> I didn't know that diamonds are so popular :-)

Yes, as many other topics it seems that
diamonds reappear quite often in these
groups.


> Well: my story is: I was looking for something completely different (already
> forgot what exactly) and fell over a diamond-ideal-cut-property-picture
> showing exact properties of the thing. It was interesting and so I continued
> looking for exact physical properties of a diamond (especially IOR) which I
> found rather quickly.
> You can imagine the rest :-)

I find the diamonds shapes and their internal
reflections very interesting. So I hope I soon
can find time to make some more diamond images.
(But there are so many other POV experiments
that I just have to do first...)


Here are IOR's for many real-world materials:

http://news.povray.org/povray.binaries.utilities/15777/
news://news.povray.org/b8a72tkp5bki1eatfm49cvb7729bmop43j%404ax.com

IOR_Isotropic.inc has IOR values for diamonds


> BTW: most pictures I saw in these threads were pretty deep cuts which don't
> reflect properly. Strange. Either all made the same mistake or they all used
> the same model?

It has been a while since I worked with
"perfect cut" diamond shapes, so I don't
quite remember if I was totally satisfied
with my shapes.

Btw.: Are you really sure that the girdle
lines should be "roundish" ?


Tor Olav


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From:
Subject: Re: to the honor of the Pov/MegaPov developers
Date: 15 Mar 2002 03:43:56
Message: <3c91b44c@news.povray.org>
Hi,

> can find time to make some more diamond images.
> (But there are so many other POV experiments
> that I just have to do first...)

Even more diamonds?? *lol*

> Here are IOR's for many real-world materials:

Thanks!

> Btw.: Are you really sure that the girdle
> lines should be "roundish" ?

Yes.

regards
SY


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From:
Subject: Re: to the honor of the Pov/MegaPov developers
Date: 15 Mar 2002 07:46:44
Message: <3c91ed34$1@news.povray.org>
> You've got bragging rights if you can get the color and interior correct.

BTW: you got me wrong. Read the subject before the text. The "good job" was
NOT meant for the diamond but for the PoV/MegaPoV DEVELOPERS.

All clear?

regards
SY


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From: Shay
Subject: Re: to the honor of the Pov/MegaPov developers
Date: 15 Mar 2002 09:33:42
Message: <3c920646$1@news.povray.org>

news:3c91ed34$1@news.povray.org...
> > You've got bragging rights if you can get the color and interior
correct.
>
> BTW: you got me wrong. Read the subject before the text. The "good job"
was
> NOT meant for the diamond but for the PoV/MegaPoV DEVELOPERS.
>


I'm clear. I understand that you were not bragging about the diamond.
I meant what I said, though. Creating a convincing emerald material would be
a serious accomplishment, and worth bragging about.
 -Shay


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From:
Subject: Re: to the honor of the Pov/MegaPov developers
Date: 15 Mar 2002 15:00:45
Message: <3c9252ed$1@news.povray.org>
> And there we go again:  gimme code, gimme code, gimme code...   ;-)

just posted in p.b.s-f
regards
SY


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From: Christopher James Huff
Subject: Re: to the honor of the Pov/MegaPov developers
Date: 16 Mar 2002 11:35:18
Message: <chrishuff-52E073.11351016032002@netplex.aussie.org>
In article <3C9### [at] hotmailcom>,
 Tor Olav Kristensen <tor### [at] hotmailcom> wrote:

> Here are IOR's for many real-world materials:
> 
> http://news.povray.org/povray.binaries.utilities/15777/
> news://news.povray.org/b8a72tkp5bki1eatfm49cvb7729bmop43j%404ax.com
> 
> IOR_Isotropic.inc has IOR values for diamonds

The standard include consts.inc also has several iors, it has been 
updated for 3.5.

-- 
Christopher James Huff <chr### [at] maccom>
POV-Ray TAG e-mail: chr### [at] tagpovrayorg
TAG web site: http://tag.povray.org/


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