Op 1-3-2023 om 12:12 schreef Bald Eagle:
> Update:
> 
> A link to this detailed analysis of the vase has just been posted.
> 
> https://unsigned.io/granite-artifact/
> 
> I'll be out to work and then doing things this afternoon, but maybe if others
> are interested, they can read, play with it, write some macros and scenes, etc.
> 
> 

To answer (part of) the questions of the author, see for instance:

https://www.oocities.org/unforbidden_geology/ancient_egyptian_stone_vase_making.html

-- 
Thomas

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Op 25-2-2023 om 16:20 schreef jr:
> cheer away :-)  link to 6.1M zip, 17M mesh.  looks unchanged, afaict.  (started
> playing with a rose quartz material, so sample scene is .. untidy)
> 
> <https://drive.google.com/file/d/11yr1A4GXITRcXe-YZFwRRybKmaij9e8H/view?usp=sharing>
> 
> 
Somehow, I am snowed under by all the messages on miscellaneous subjects 
lately (and other matters) that I must have missed your contribution. :-/

I added the granite_21 texture and got this. Indeed, the mesh is as 
smooth as the earlier/heavier ones.

So, what does it say about the /need/ for POV-Ray use of such a 'heavy' 
mesh? I guess that for most cases we could do with less. It is a pity 
that Poseray does not allow for simplifying meshes, only subdividing it 
further (afaik).

-- 
Thomas

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Attachments:
Download 'vase_3.jpg' (91 KB)

Preview of image 'vase_3.jpg'

Il 01/03/2023 12:12, Bald Eagle ha scritto:
> Update:
> 
> A link to this detailed analysis of the vase has just been posted.
> 
> https://unsigned.io/granite-artifact/
> 
> I'll be out to work and then doing things this afternoon, but maybe if others
> are interested, they can read, play with it, write some macros and scenes, etc.
> 
> - BW
> 
> 

The analysis is very thorough, are you the author of the pictures?

Paolo

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Paolo Gibellini <p.g### [at] gmailcom> wrote:

> The analysis is very thorough, are you the author of the pictures?
>
> Paolo

Nope.  That's Mark Qvist.   I got in touch with him through github, and he's
supposed to get back to me sometime soon.  :)

Check this out too:

https://twitter.com/mariusderomanu3

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hi,

Thomas de Groot <tho### [at] degrootorg> wrote:
> Op 25-2-2023 om 16:20 schreef jr:
> > cheer away :-)  ...
> Somehow, I am snowed under by all the messages on miscellaneous subjects
> lately (and other matters) that I must have missed your contribution. :-/

it is small.  </grin>


> So, what does it say about the /need/ for POV-Ray use of such a 'heavy'
> mesh? ...

had not realised earlier that a scale-correct 1:1 representation is the goal.
but in light of that, I'd argue that while it's a WIP, the highest possible
resolution, then scale down for use.  (much like oversizing a render (gut
feeling))


regards, jr.

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Op 3-3-2023 om 12:25 schreef jr:
> had not realised earlier that a scale-correct 1:1 representation is the goal.
> but in light of that, I'd argue that while it's a WIP, the highest possible
> resolution, then scale down for use.  (much like oversizing a render (gut
> feeling))
> 
Well, there is no specific goal afaiac, except if one wants to use 
Granite_21 in a 'natural' way, then it might be important. However, that 
is a choice and all options are free of course. ;-)

...and when we want to reproduce the object at its true size/aspect.

-- 
Thomas

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Thomas de Groot <tho### [at] degrootorg> wrote:
> Op 3-3-2023 om 12:25 schreef jr:
> > had not realised earlier that a scale-correct 1:1 representation is the goal.
> > but in light of that, I'd argue that while it's a WIP, the highest possible
> > resolution, then scale down for use.  (much like oversizing a render (gut
> > feeling))
> >
> Well, there is no specific goal afaiac, except if one wants to use
> Granite_21 in a 'natural' way, then it might be important. However, that
> is a choice and all options are free of course. ;-)
>
> ...and when we want to reproduce the object at its true size/aspect.

Well, there are different goals at different stages.

The first goal was to rapidly get a very nice looking render with the Granite_21
material to show off POV-Ray's textures and the potential for
near-photorealistic render quality.

The second is to poke around the mesh and examine whatever features may present
themselves, given that we have a very high quality mesh, and the tools to play
with normals, lighting, signal processing, trace (), and anything else you can
think of.

Here's a sort of uv-unwrapped render of the outer and inner surfaces, done with
trace (), 2 arrays, and 4 million triangles.  I still need to correct the
scaling and positioning of the lower color_map.  <eyroll>

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Attachments:
Download 'vasesurface.png' (113 KB)

Preview of image 'vasesurface.png'

hi,

"Bald Eagle" <cre### [at] netscapenet> wrote:
> ...
> Here's a sort of uv-unwrapped render of the outer and inner surfaces, ...

wow, neat.  (what do you (collective) make of the interior?  paint?)


regards, jr.

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Op 05/03/2023 om 07:27 schreef jr:
> hi,
> 
> "Bald Eagle" <cre### [at] netscapenet> wrote:
>> ...
>> Here's a sort of uv-unwrapped render of the outer and inner surfaces, ...
> 
> wow, neat.  (what do you (collective) make of the interior?  paint?)
> 
> 
LOL. I noticed (on the models) that the inside mesh is not complete. I 
guess the vase opening was too small for the scanner.

-- 
Thomas

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Il 02/03/2023 23:41, Bald Eagle ha scritto:
> Paolo Gibellini <p.g### [at] gmailcom> wrote:
> 
>> The analysis is very thorough, are you the author of the pictures?
>>
>> Paolo
> 
> Nope.  That's Mark Qvist.   I got in touch with him through github, and he's
> supposed to get back to me sometime soon.  :)
> 
> Check this out too:
> 
> https://twitter.com/mariusderomanu3
> 

I see... a more than enthusiastic expert on ancient Egypt.
Interesting!

Paolo

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