"Bald Eagle" <cre### [at] netscapenet> wrote:
> "ingo" <nomail@nomail> wrote:

> Hey - this is a really good one.
> It looks like a white blood cell from Asimov's _Fantastic Voyage_!
>
> Could you share how you achieved this result?

In the scene file in the first post use

sphere{0,1,-0.8 scale <1,0.00021,1> Point_At_Trans(Normal) translate
Normal*Distance*1.2}

inside the blob loop

and this for the lighting:

light_source{< -300, 3000,   0> rgb <0.3,0.35,0.2>}
light_source{< 3000,  300,-500> rgb .5}
light_source{< 700,  300,-500> rgb <0.4,0.2,0.0>}
light_source{< -300,-3000,   0> rgb <0.2,0.2,0.6>}

There is no control over the modelling, it is an intersection of many blob and
the blobs are scaled "thin". It would not surprise me if the result is also OS
dependent.

Here's an other one, from the same scene file settings: N24SY0.0001

ingo

Post a reply to this message

Attachments:
Download 'n24sy0.0001.png' (256 KB)

Preview of image 'n24sy0.0001.png'

yesbird <sya### [at] gmailcom> wrote:
> On 08/05/2024 08:02, ingo wrote:
> > yesbird <sya### [at] gmailcom> wrote:
> >> I like it - inspired by Malevich ?
> > ...
> > Haha, no, more a "Bob Ross Happy Accident".
>
> It looks like we are on the way to the modern art gallery.

Go sell NFT's :)

ingo

Post a reply to this message

On 5/8/24 01:02, ingo wrote:
> Haha, no, more a "Bob Ross Happy Accident". Just going beyond sensible with
> scaling of blobs and I guess then you run into numerical problems.

I've been playing too with your scene. :-)

Bill P.

Post a reply to this message

Attachments:
Download 'ingo_blobnumeric.jpg' (74 KB)

Preview of image 'ingo_blobnumeric.jpg'

On 08/05/2024 16:17, William F Pokorny wrote:
> I've been playing too with your scene. :-)

Could you please share a code of this 'moss and grass' ?
--
YB.

Post a reply to this message

William F Pokorny <ano### [at] anonymousorg> wrote:

> I've been playing too with your scene. :-)


A Tribble :)

ingo

Post a reply to this message

Le 2024-05-08 à 08:43, ingo a écrit :
> "Bald Eagle" <cre### [at] netscapenet> wrote:
>> "ingo" <nomail@nomail> wrote:
> 
>> Hey - this is a really good one.
>> It looks like a white blood cell from Asimov's _Fantastic Voyage_!
>>
>> Could you share how you achieved this result?
> 
> In the scene file in the first post use
> 
> sphere{0,1,-0.8 scale <1,0.00021,1> Point_At_Trans(Normal) translate
> Normal*Distance*1.2}
> 
> inside the blob loop
> 
> and this for the lighting:
> 
> light_source{< -300, 3000,   0> rgb <0.3,0.35,0.2>}
> light_source{< 3000,  300,-500> rgb .5}
> light_source{< 700,  300,-500> rgb <0.4,0.2,0.0>}
> light_source{< -300,-3000,   0> rgb <0.2,0.2,0.6>}
> 
> There is no control over the modelling, it is an intersection of many blob and
> the blobs are scaled "thin". It would not surprise me if the result is also OS
> dependent.
> 
> Here's an other one, from the same scene file settings: N24SY0.0001
> 
> ingo
> 
> 
My rendering result in a Voronoy faceted sphere.

Post a reply to this message

Le 2024-05-08 à 00:57, ingo a écrit :
> Alain Martel <kua### [at] videotronca> wrote:
>> Le 2024-05-07 à 02:35, ingo a écrit :
> 
>>>       //sphere{0,1,-0.8 scale <1,0.0000001,1> Point_At_Trans(Normal) translate
>>> Normal*Distance*1.2}
>>>     #end
>>>     pigment{rgb 1}
>>> }
> 
> 
>> My render don't look even remotely like your image, and I didn't change
>> anything.
> 
> Alain,
> 
> did you render with the last sphere option?
> 
> ingo
> 
> 
> 
I rendered without any change, using the commented line :
sphere{0,1,-0.8 scale <1,0.01,1> Point_At_Trans(Normal) translate 
Normal*Distance*1.2}

Will try with the other options.

Post a reply to this message

Le 2024-05-08 à 00:57, ingo a écrit :
> Alain Martel <kua### [at] videotronca> wrote:
>> Le 2024-05-07 à 02:35, ingo a écrit :
> 
>>>       //sphere{0,1,-0.8 scale <1,0.0000001,1> Point_At_Trans(Normal) translate
>>> Normal*Distance*1.2}
>>>     #end
>>>     pigment{rgb 1}
>>> }
> 
> 
>> My render don't look even remotely like your image, and I didn't change
>> anything.
> 
> Alain,
> 
> did you render with the last sphere option?
> 
> ingo
> 
> 
> 
Added #switch(frame_number), a few #case(n)...#break and rendered with +kff7
First one : Rounded faceted sphere
Second : Sharp faceted sphere
Third : Pockmarked sphere
Fourth and following : It get fuzzy.

Post a reply to this message

On 5/8/24 09:26, yesbird wrote:
> Could you please share a code of this 'moss and grass' ?

Attached is something like what I used - it produces the bottom part of 
the attached image... The coloring comes from Ingo's light colors.

I don't have the original scene anymore as I was playing with this and 
that. Plus, I was using my yuqk fork for which the "numerical issues" 
are a little different the official releases of POV-Ray. This shown in 
the top row of the attached image where on the left is Ingo's original 
at 1e-3 and the same rendered with the yuqk fork on the right(*)

The biggest changes for the fuzzier results was not using the larger 
positive sphere and changing the negative squashed spheres into positive 
components.

Bill P.

(*) - Part of what is happening in the original posted scene is that as 
we scale down in y, except for the edges, the negative components start 
to cleave off little round bits of the  larger sphere rather than blunt 
it in a faceted way. The yuqk fork shows this a little better, because 
it's numerical accuracy with blobs is a little better.

Post a reply to this message

Attachments:
Download 'ingo_blobnumeric_3.jpg' (69 KB) Download 'ingo_blobnumeric_3.pov.txt' (2 KB)

Preview of image 'ingo_blobnumeric_3.jpg'

On 08/05/2024 18:31, William F Pokorny wrote:
> Attached is something like what I used - it produces the bottom part of 
> the attached image... The coloring comes from Ingo's light colors.

Thanks for sharing scene and detailed comments, right 'out of the box'
it looks completely different (attached), but I will try to tune it up.

Now I'm thinking about adding it and similar abstract scenes
to https://povlab.online in separate section - 'artifacts' :)
--
YB.

Post a reply to this message

Attachments:
Download 'ingo_blobnumeric_3.png' (130 KB)

Preview of image 'ingo_blobnumeric_3.png'