Le 2024-05-07 à 02:35, ingo a écrit :
> 
> Variations:
> 
> ---%<------%<------%<---
> 
> 
> #version 3.7;
> global_settings{ assumed_gamma 1.0 }
> #default{ finish{ ambient 0.1 diffuse 0.9 }}
> #include "math.inc"
> #include "rand.inc"
> #include "functions.inc"
> #include "transforms.inc"
> 
> 
> #declare Point = <0,0,0>;
> #declare Stream = seed(7);
> //#declare N=24;
> #declare N=240;
> #declare arrNeighbours = array[N];
> #for(I,0,N-1)
>    #declare arrNeighbours[I] = VRand_On_Sphere(Stream)/2;
> #end
> 
> blob{
>    threshold .40
>    sphere{Point,1,1}
>    #for(I,0,N-1)
>      #declare Neighbour = arrNeighbours[I];
>      #declare Distance = vlength(Neighbour);
>      #declare Normal = vnormalize(Neighbour);
>      //sphere{0,1,-0.8 scale <1,0.1,1> Point_At_Trans(Normal) translate
> Normal*Distance*1.2}
>      sphere{0,1,-0.8 scale <1,0.01,1> Point_At_Trans(Normal) translate
> Normal*Distance*1.2}
>      //sphere{0,1,-0.8 scale <1,0.001,1> Point_At_Trans(Normal) translate
> Normal*Distance*1.2}
>      //sphere{0,1,-0.8 scale <1,0.0001,1> Point_At_Trans(Normal) translate
> Normal*Distance*1.2}
>      //sphere{0,1,-0.8 scale <1,0.00001,1> Point_At_Trans(Normal) translate
> Normal*Distance*1.2}
>      //sphere{0,1,-0.8 scale <1,0.000001,1> Point_At_Trans(Normal) translate
> Normal*Distance*1.2}
>      //sphere{0,1,-0.8 scale <1,0.0000001,1> Point_At_Trans(Normal) translate
> Normal*Distance*1.2}
>    #end
>    pigment{rgb 1}
> }
> 
> camera {
>    perspective angle 22
>    location  <0,0,-10>
>    look_at   <0,0,  0>
> }
> light_source{< -300, 3000,   0> rgb <0.3,0.3,0.2>}
> light_source{< 3000,  300,-500> rgb .5}
> light_source{<  300,-3000,   0> rgb <0.2,0.2,0.4>}
> 
> ---%<------%<------%<---
> 
> ingo
My render don't look even remotely like your image, and I didn't change 
anything.

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On 07/05/2024 09:35, ingo wrote:
> 
> Variations:

I like it - inspired by Malevich ?
--
YB

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Alain Martel <kua### [at] videotronca> wrote:


> >      //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

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yesbird <sya### [at] gmailcom> wrote:
> On 07/05/2024 09:35, ingo wrote:
> >
> > Variations:
>
> I like it - inspired by Malevich ?

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.

ingo

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Attachments:
Download 'singlecell_blob.png' (575 KB)

Preview of image 'singlecell_blob.png'

On 08/05/2024 08:02, ingo wrote:
> Haha, no, more a "Bob Ross Happy Accident".

Thanks, will have a look ...
Btw, Roger Dean also have real time online lessons on his Facebook page.

  Just going beyond sensible with
> scaling of blobs and I guess then you run into numerical problems.
Rather interesting object, will play with it. Reminds my fractals 
experiments at 90-x.
--
YB

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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.
I call this artwork "Spring in NY", guess it will be sold
for about $1.5-1.8 millions and I will by Meta Quest 3 then ...

------------------------------------------------------------------------
#version 3.7;
global_settings{ assumed_gamma 1.0 }
#default{ finish{ ambient 0.1 diffuse 0.9 }}
#include "math.inc"
#include "rand.inc"
#include "functions.inc"
#include "transforms.inc"

#declare Point = <0,0,0>;
#declare Stream = seed(7);
#declare N=240;
#declare arrNeighbours = array[N];
#for(I,0,N-1)
   #declare arrNeighbours[I] = VRand_On_Sphere(Stream)/2;
#end

blob{
   threshold .50
   sphere{Point,1,1}
   #for(I,0,N-1)
     #declare Neighbour = arrNeighbours[I];
     #declare Distance = vlength(Neighbour);
     #declare Normal = vnormalize(Neighbour);
     sphere{0,1,-0.8 scale <1,0.0000001, 1> Point_At_Trans(Normal) 
translate Normal * Distance * 2.8}
   #end
   pigment{rgb 1}
}

camera {
   perspective angle 22
   location  <0,0,-10>
   look_at   <0,0,  0>
}

light_source{< -300, 3000,   0> rgb <0.2, 2.3, 0.2>}
light_source{< 3000,  300,-500> rgb <0.0, 0.4, 0.4>}
light_source{<  300,-3000,   0> rgb <0.0, 0.1, 2.4>}
------------------------------------------------------------------------

--
YB

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Attachments:
Download 'ingo_01.png' (442 KB)

Preview of image 'ingo_01.png'

"ingo" <nomail@nomail> 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.
>
> ingo

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?
This looks like a good base for future modeling.

Maybe you should try using emission to see if you can get some nice "glow"
effects.

I could also envision giving it a green hue to simulate some sort of microscopic
plant cell, and maybe a (mostly) clear/ior internal region with some irregular
"organelles" to make it look like one of those microscope slide images.

Horton hears a who?   :)

- BW

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"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

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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

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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.

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

Preview of image 'ingo_blobnumeric.jpg'