POV-Ray : Newsgroups : povray.general : Request: HIGH resolution stl conversion to mesh / mesh2 Server Time
25 Feb 2024 07:56:32 EST (-0500)
  Request: HIGH resolution stl conversion to mesh / mesh2 (Message 11 to 20 of 72)  
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From: Thomas de Groot
Subject: Re: Request: HIGH resolution stl conversion to mesh / mesh2
Date: 23 Feb 2023 08:56:24
Message: <63f77088@news.povray.org>
Again, using Granite_21: "NorthAmericanPinkGranite" in my Studio setup, 
but 'polished' this time.

-- 
Thomas


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From: Thomas de Groot
Subject: Re: Request: HIGH resolution stl conversion to mesh / mesh2
Date: 23 Feb 2023 09:06:05
Message: <63f772cd$1@news.povray.org>
Op 23-2-2023 om 02:03 schreef Bald Eagle:
> Hi folks,
> 
> Ben from UnchartedX has just posted the stl file from a professional
> metrological scan of a pre-dynastic rose quartz vase.
> 
> You can view the video and the one that precedes it to gain an appreciation of
> exactly what this represents.
> 
>  From a purely POV-Ray perspective, it would be great to get this rendered with
> Thomas deGroot's Granite_21 textures, and maybe even post the results on YT and
> other sites to show the capabilities of POV-Ray with regard to texture, finish,
> normal, lighting, and sub-surface light transport.
> 
> The file is 44.6 MB, and it would be great if someone could convert it to a mesh
> {} or preferably mesh2 {} object.  You could likely post it on a free
> file-hosting service for the next 30 days like I did with F. Lohmueller's
> (partial) web archive.
> 
>
https://unchartedx.com/site/2023/02/19/new-video-updates-to-the-vase-scan-responses-and-the-stl-file/
> 

To be sure you get it too (I posted the link separately to jr's 
request), the Vase mesh2 files can be downloaded here for the next 30 days:

  https://ufile.io/0wv5jpfc

I still need to test how sub-surface light transport will show itself 
off in the present setting.

-- 
Thomas


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From: jr
Subject: Re: Request: HIGH resolution stl conversion to mesh / mesh2
Date: 23 Feb 2023 09:45:00
Message: <web.63f77ac49ce67fcf9091ae0b6cde94f1@news.povray.org>
hi,

Thomas de Groot <tho### [at] degrootorg> wrote:
> ...
> No problem. Available here for the next 30 days:

done, thank you.


> > the granite look does suit.
> You do have Granite_21.mcr on your system, don't you?
>
> I have made a small update to it, which makes it possible to call
> texture{Granite_21} instead of material{Granite_21}. It is not entirely
> ready to be posted yet though. Just don't uncomment the (new) Mat_Tex
> command.

I do, macro dated Aug 29th 2021; zip September 4th.  (time does fly..)  "not
entirely ready" </sigh>  can appreciate that :-).


regards, jr.


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From: Thomas de Groot
Subject: Re: Request: HIGH resolution stl conversion to mesh / mesh2
Date: 23 Feb 2023 10:29:10
Message: <63f78646$1@news.povray.org>
Op 23-2-2023 om 15:40 schreef jr:
>> I have made a small update to it, which makes it possible to call
>> texture{Granite_21} instead of material{Granite_21}. It is not entirely
>> ready to be posted yet though. Just don't uncomment the (new) Mat_Tex
>> command.
> 
> I do, macro dated Aug 29th 2021; zip September 4th.  (time does fly..)  "not
> entirely ready" </sigh>  can appreciate that :-).
>
Ha! I just need to check for bugs and limitations...

-- 
Thomas


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From: Thomas de Groot
Subject: Re: Request: HIGH resolution stl conversion to mesh / mesh2
Date: 23 Feb 2023 10:31:44
Message: <63f786e0$1@news.povray.org>
Op 23-2-2023 om 11:23 schreef yesbird:
> On 23/02/2023 12:13, Thomas de Groot wrote:
>> Using Granite_21: "NorthAmericanPinkGranite" in my Studio setup.
> HI, Thomas.
> 
> Very good job ! Looks very natural, texture is high-detailed. When you
> finish the scene, could you please send it to me ? I will do HD
> animation and put it on my Youtube's POV-Ray channel.
> 
> 

Thanks! I shall send it to you asap.

-- 
Thomas


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From: Thomas de Groot
Subject: Re: Request: HIGH resolution stl conversion to mesh / mesh2
Date: 23 Feb 2023 11:19:26
Message: <63f7920e$1@news.povray.org>
Using Granite_21: "DakotaRedGranite" in my Studio setup, with 
'polished', and 'sslt'.

I am not very sure if sslt makes a difference here...

-- 
Thomas


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From: jr
Subject: Re: Request: HIGH resolution stl conversion to mesh / mesh2
Date: 24 Feb 2023 01:55:00
Message: <web.63f85ee49ce67fcf816b7cd96cde94f1@news.povray.org>
hi,

Thomas de Groot <tho### [at] degrootorg> wrote:
> Using Granite_21: "DakotaRedGranite" in my Studio setup, with
> 'polished', and 'sslt'.
>
> I am not very sure if sslt makes a difference here...

it's all v subjective, of course, but I think this image "best" of the three,
think the difference of the top surface alone made it worth having.

re the mesh.  looks like either of the s/wares you used did some optimisation
(of vertices).  luckily the "geom" file contained a very useful header, I used
that to have a few tries with the (gts) 'cleanup' utility, and got down to 55M
without any apparent/visual differences.  hope to find some more time over the
weekend, see how small it can be made.  (thanks)

regards, jr.


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From: Thomas de Groot
Subject: Re: Request: HIGH resolution stl conversion to mesh / mesh2
Date: 24 Feb 2023 03:37:56
Message: <63f87764$1@news.povray.org>
Op 24-2-2023 om 07:53 schreef jr:
> hi,
> 
> Thomas de Groot <tho### [at] degrootorg> wrote:
>> Using Granite_21: "DakotaRedGranite" in my Studio setup, with
>> 'polished', and 'sslt'.
>>
>> I am not very sure if sslt makes a difference here...
> 
> it's all v subjective, of course, but I think this image "best" of the three,
> think the difference of the top surface alone made it worth having.
> 
I agree. I had come to the same conclusion.

> re the mesh.  looks like either of the s/wares you used did some optimisation
> (of vertices).  luckily the "geom" file contained a very useful header, I used
> that to have a few tries with the (gts) 'cleanup' utility, and got down to 55M
> without any apparent/visual differences.  hope to find some more time over the
> weekend, see how small it can be made.  (thanks)
> 
Interesting. I have no idea what those conversion programs are doing 
under the hood, but if you can work out a smaller conversion output, I 
would be the first to cheer. ;-)

-- 
Thomas


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From: yesbird
Subject: Re: Request: HIGH resolution stl conversion to mesh / mesh2
Date: 24 Feb 2023 07:56:11
Message: <79bff265-db16-b231-0352-f0806ca4531c@gmail.com>
On 24/02/2023 11:37, Thomas de Groot wrote:
> Interesting. I have no idea what those conversion programs are doing 
> under the hood, but if you can work out a smaller conversion output, I 
> would be the first to cheer. ;-)
You can also compare it with my version of conversion ).
STL->ZBrush->OBJ->PoseRay->POV

Download: 
https://drive.google.com/file/d/12xbZmiV09RMdWOIC6t5nWv2qXKDyvB-T/view?usp=share_link
--
YB


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From: Thomas de Groot
Subject: Re: Request: HIGH resolution stl conversion to mesh / mesh2
Date: 24 Feb 2023 08:10:53
Message: <63f8b75d@news.povray.org>
According to this site:

https://www.theglobaleducationproject.org/egypt/articles/hrdfact3.php

The grain size of the stone looks more like the example attached here. 
However, all depends on the /real size/ of the objects themselves, and 
most seem to be on the scale of inches/centimetres.

-- 
Thomas


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