POV-Ray : Newsgroups : povray.binaries.images : Diamanted finish on metallic surface Server Time
25 Jan 2022 14:14:23 EST (-0500)
  Diamanted finish on metallic surface (Message 1 to 5 of 5)  
From: Havana7
Subject: Diamanted finish on metallic surface
Date: 2 Mar 2018 07:25:00
Message: <web.5a99423e145597463e499bc60@news.povray.org>
Hello guys!
Can any of you tell me how to get this effect on flat surfaces?

Thanks a lot!


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From: Stephen
Subject: Re: Diamanted finish on metallic surface
Date: 2 Mar 2018 08:22:41
Message: <5a995021$1@news.povray.org>
On 02/03/2018 12:23, Havana7 wrote:
> Hello guys!
> Can any of you tell me how to get this effect on flat surfaces?
> 
> Thanks a lot!
> 
Hi and welcome.

For a flat surface you would use a normal to give the impression of 
depth. Try bumps.
If you have a photograph that you want to use. You could use it as a 
heightfield. Which would turn it into an actual 3D object. Where the 
light colours are high and the dark colours are deep.


-- 

Regards
     Stephen


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From: Norbert Kern
Subject: Re: Diamanted finish on metallic surface
Date: 2 Mar 2018 16:50:01
Message: <web.5a99c68d33da56ce452216fa0@news.povray.org>
"Havana7" <nomail@nomail> wrote:
> Hello guys!
> Can any of you tell me how to get this effect on flat surfaces?
>
> Thanks a lot!


Here is an approach on such a material. Properly scaled it should do the job.

Source is here:
http://news.povray.org/povray.binaries.scene-files/thread/%3Cweb.5a99c42214559746452216fa0%40news.povray.org%3E/
..

Norbert


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diamanted finish on metallic surface.jpg


 

From: Alain
Subject: Re: Diamanted finish on metallic surface
Date: 3 Mar 2018 15:28:28
Message: <5a9b056c@news.povray.org>

> Hello guys!
> Can any of you tell me how to get this effect on flat surfaces?
> 
> Thanks a lot!
> 

You may try something like :
normals{crackle -1 scale Your_Scale}

The -1 is to make it so that the normally high points become pits.
Adjust the normal depth and scalling to your taste.


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From: MichaelJF
Subject: Re: Diamanted finish on metallic surface
Date: 27 Dec 2021 13:24:36
Message: <61ca04e4$1@news.povray.org>
Am 02.03.2018 um 22:47 schrieb Norbert Kern:
> "Havana7" <nomail@nomail> wrote:
>> Hello guys!
>> Can any of you tell me how to get this effect on flat surfaces?
>>
>> Thanks a lot!
> 
> 
> Here is an approach on such a material. Properly scaled it should do the job.
> 
> Source is here:
>
http://news.povray.org/povray.binaries.scene-files/thread/%3Cweb.5a99c42214559746452216fa0%40news.povray.org%3E/
> ..
> 
> Norbert
> 
Sorry to bring this old post up again. I'm just updating my collection 
of example scenes I neglected since the end of 2017 now and stumbled 
about this one. As all I can see, Norbert did a very good job at 
answering the question of Havana7 and by resembling the image given. I 
assume the image of the necklace posted by Havana7 is a photography and 
I wondered how this necklace was crafted originally. Has onyone an idea? 
The only technique I found so far giving similar but not equal results 
is sand casting.

Best regards,
Michael


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