POV-Ray : Newsgroups : povray.binaries.images : Playing with gems Server Time
10 Oct 2026 16:04:39 EDT (-0400)
  Playing with gems (Message 1 to 19 of 19)  
From: Thomas de Groot
Subject: Playing with gems
Date: 15 Feb 2016 08:05:01
Message: <56c1ccfd@news.povray.org>
I was just playing a bit with TopMod and got a nice gem geometry. I 
could not resist...

-- 
Thomas


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From: Sven Littkowski
Subject: Re: Playing with gems
Date: 15 Feb 2016 09:44:12
Message: <56c1e43c$1@news.povray.org>
And now you need to give this image to a charming, wonderful woman of
your choice. :-D

-------------------------------------

On 15.02.2016 08:04, Thomas de Groot wrote:
> I was just playing a bit with TopMod and got a nice gem geometry. I
> could not resist...


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From: Sven Littkowski
Subject: Re: Playing with gems
Date: 15 Feb 2016 09:45:04
Message: <56c1e470$1@news.povray.org>
I would use an underground of cut, polished rock material. Might look
even better again. But it is marvelous, as it is.

On 15.02.2016 08:04, Thomas de Groot wrote:
> I was just playing a bit with TopMod and got a nice gem geometry. I
> could not resist...
>


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From: Theogott
Subject: Re: Playing with gems
Date: 16 Feb 2016 02:40:00
Message: <web.56c2d15d89747a2aadb2e4f80@news.povray.org>
Gems are as nice theme, but the wheel on gems is already round.
If you go to youtube and type in rendering a diamond
you get things like this:
https://www.youtube.com/watch?v=IuhHam3_uwY

I think this is how it should look. Ok, Octane is a commercial program, but if
we stay with Freeware, this one looks good:
https://www.youtube.com/watch?v=ebsXFEVwlWM

The only Gem, nobody can render at this time is the OPAL.
Diamonds, Ruby's etc. is just some sort of more or less coloured glas,
with another IOR and maybe a bit Dispersion ...


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From: Thomas de Groot
Subject: Re: Playing with gems
Date: 16 Feb 2016 03:15:17
Message: <56c2da95$1@news.povray.org>
On 16-2-2016 8:35, Theogott wrote:
> Gems are as nice theme, but the wheel on gems is already round.

True, but I am just messing around and not interested in realism at all. 
This is thomasite ;-)

>
> The only Gem, nobody can render at this time is the OPAL.

Well, I wonder if with version 3.7 opal is not within reach. I seem to 
remember some striking examples a while ago here.

-- 
Thomas


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From: Thomas de Groot
Subject: Re: Playing with gems
Date: 16 Feb 2016 03:16:10
Message: <56c2daca$1@news.povray.org>
On 15-2-2016 15:43, Sven Littkowski wrote:
> And now you need to give this image to a charming, wonderful woman of
> your choice. :-D

The woman I love does not need gems. ;-)

-- 
Thomas


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From: Jaime Vives Piqueres
Subject: Re: Playing with gems
Date: 16 Feb 2016 04:48:45
Message: <56c2f07d@news.povray.org>
El 16/02/16 a las 09:14, Thomas de Groot escribió:
> Well, I wonder if with version 3.7 opal is not within reach. I seem
> to remember some striking examples a while ago here.

    Believe me... it's ******* difficult. I'm still regretting to have
taken the challenge Theo presented to me privately (well, at least it
served to get me poving again).

   I tried a lot of things, but only got somewhat closer using multiple
emission medias. It still lacks some very distinctive features... and of
course, it's not animatable.

--
jaime


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From: Thomas de Groot
Subject: Re: Playing with gems
Date: 16 Feb 2016 07:20:32
Message: <56c31410$1@news.povray.org>
On 16-2-2016 10:48, Jaime Vives Piqueres wrote:
> El 16/02/16 a las 09:14, Thomas de Groot escribió:
>> Well, I wonder if with version 3.7 opal is not within reach. I seem
>> to remember some striking examples a while ago here.
>
>     Believe me... it's ******* difficult. I'm still regretting to have
> taken the challenge Theo presented to me privately (well, at least it
> served to get me poving again).
>
>    I tried a lot of things, but only got somewhat closer using multiple
> emission medias. It still lacks some very distinctive features... and of
> course, it's not animatable.
>

Hmmm... I see what you mean indeed. Still, this is pretty good!


-- 
Thomas


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From: Thomas de Groot
Subject: Re: Playing with gems - final
Date: 16 Feb 2016 08:18:12
Message: <56c32194@news.povray.org>
Better I think.

-- 
Thomas


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From: Jaime Vives Piqueres
Subject: Re: Playing with gems - final
Date: 16 Feb 2016 08:39:06
Message: <56c3267a$1@news.povray.org>
El 16/02/16 a las 14:17, Thomas de Groot escribió:
> Better I think.
>

   Yes, much better... but I would make it even more clear. Also, what's 
the IOR of thomasite?

--
jaime


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From: Bald Eagle
Subject: Re: Playing with gems - final
Date: 16 Feb 2016 14:10:00
Message: <web.56c37332138e27415e7df57c0@news.povray.org>
Jaime Vives Piqueres <jai### [at] ignoranciaorg> wrote:

>    Yes, much better... but I would make it even more clear. Also, what's
> the IOR of thomasite?

Have to pop it into the trusty Tom Swift gem-o-lyzer in the Flying Lab...


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From: Norbert Kern
Subject: Re: Playing with gems
Date: 16 Feb 2016 14:30:00
Message: <web.56c377fc89747a2ade76dc220@news.povray.org>
Thomas de Groot <tho### [at] degrootorg> wrote:

> Well, I wonder if with version 3.7 opal is not within reach. I seem to
> remember some striking examples a while ago here.



Samuel T. Benge made a nice bright opal with media and reflecting meshes inside
of an object.

Image -
http://news.povray.org/povray.binaries.images/thread/%3C4aac43e1$1@news.povray.org%3E/

Source -
http://news.povray.org/povray.binaries.scene-files/thread/%3C4aad7250@news.povray.org%3E/?ttop=403291&toff=150

Beware - it's slow...


Norbert


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From: Thomas de Groot
Subject: Re: Playing with gems - final
Date: 17 Feb 2016 03:13:56
Message: <56c42bc4$1@news.povray.org>
On 16-2-2016 20:06, Bald Eagle wrote:
> Jaime Vives Piqueres <jai### [at] ignoranciaorg> wrote:
>
>>     Yes, much better... but I would make it even more clear. Also, what's
>> the IOR of thomasite?
>
> Have to pop it into the trusty Tom Swift gem-o-lyzer in the Flying Lab...
>
>

Well, this being the only example of Thomasite in the world, I am happy 
to say that its ior is 1.45. It is a rather cloudy gem so I cannot make 
it clearer :-)


-- 
Thomas


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From: Stephen
Subject: Re: Playing with gems
Date: 17 Feb 2016 14:19:16
Message: <56c4c7b4$1@news.povray.org>
On 2/16/2016 8:15 AM, Thomas de Groot wrote:
> On 15-2-2016 15:43, Sven Littkowski wrote:
>> And now you need to give this image to a charming, wonderful woman of
>> your choice. :-D
>
> The woman I love does not need gems. ;-)
>

Because she has one. - You :-)


-- 

Regards
     Stephen


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From: Stephen
Subject: Re: Playing with gems
Date: 17 Feb 2016 14:24:17
Message: <56c4c8e1@news.povray.org>
On 2/16/2016 8:14 AM, Thomas de Groot wrote:
> On 16-2-2016 8:35, Theogott wrote:
>> Gems are as nice theme, but the wheel on gems is already round.
>
> True, but I am just messing around and not interested in realism at all.
> This is thomasite ;-)
>
>>
>> The only Gem, nobody can render at this time is the OPAL.
>
> Well, I wonder if with version 3.7 opal is not within reach. I seem to
> remember some striking examples a while ago here.
>

Here is one from 2007 (I think).
It was made by the late Steve Paget. I asked him to make an opal ring 
for my wife. He did this as well.



-- 

Regards
     Stephen


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From: Thomas de Groot
Subject: Re: Playing with gems
Date: 18 Feb 2016 02:50:11
Message: <56c577b3@news.povray.org>
On 17-2-2016 20:19, Stephen wrote:
> On 2/16/2016 8:15 AM, Thomas de Groot wrote:
>> On 15-2-2016 15:43, Sven Littkowski wrote:
>>> And now you need to give this image to a charming, wonderful woman of
>>> your choice. :-D
>>
>> The woman I love does not need gems. ;-)
>>
>
> Because she has one. - You :-)
>
>

Ooooooh....!  8-)

-- 
Thomas


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From: Thomas de Groot
Subject: Re: Playing with gems
Date: 18 Feb 2016 03:04:01
Message: <56c57af1$1@news.povray.org>
On 17-2-2016 20:24, Stephen wrote:
> Here is one from 2007 (I think).
> It was made by the late Steve Paget. I asked him to make an opal ring
> for my wife. He did this as well.
>

Yes indeed, I remember this one. I think Steve would have done an even 
better job now with 3.7's irid improvements.

-- 
Thomas


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From: Stephen
Subject: Re: Playing with gems
Date: 18 Feb 2016 03:33:24
Message: <56c581d4$1@news.povray.org>
On 2/18/2016 8:03 AM, Thomas de Groot wrote:
> On 17-2-2016 20:24, Stephen wrote:
>> Here is one from 2007 (I think).
>> It was made by the late Steve Paget. I asked him to make an opal ring
>> for my wife. He did this as well.
>>
>
> Yes indeed, I remember this one. I think Steve would have done an even
> better job now with 3.7's irid improvements.
>


I do too.

-- 

Regards
     Stephen


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From: Theogott
Subject: Re: Playing with gems - final
Date: 19 Feb 2016 03:35:01
Message: <web.56c6d28b138e2741adb2e4f80@news.povray.org>
Thats the best Opals i have ever seen being rendered, just what i expected from
one of the best (if not the best?) POV Artists out there, Jamie!

Great work.


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