 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Hello folks. Had an isosurface attack earlier and this is the product.
Sorry about the file size, but I had to reduce some jpeg artifacts.
The base shape (an octahedron) was warped with multiple passes of x, y
and z cos functions using a #while loop. Each cos function is scaled
twice as large as the next (both in size and strength). The variable
responsible for this begins with a value of 1 and counts by itself till
it reaches 128 like this:
#declare V=V+V;
It rendered relatively fast so I added one 2x2 area_light to help the
initial point light.
Questions, comments, ideas?
-Samuel Benge
Post a reply to this message
Attachments:
Download 'erosion.jpg' (128 KB)
Preview of image 'erosion.jpg'
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Samuel Benge wrote:
> Hello folks. Had an isosurface attack earlier and this is the product.
> Sorry about the file size, but I had to reduce some jpeg artifacts.
>
> The base shape (an octahedron) was warped with multiple passes of x, y
> and z cos functions using a #while loop. Each cos function is scaled
> twice as large as the next (in size and strength).
> [...]
Neat, you are not the first one trying the though ;-) See:
http://news.povray.org/3c7bb095@news.povray.org
Christoph
--
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 21 Mar. 2004 _____./\/^>_*_<^\/\.______
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Christoph Hormann wrote:
> Neat, you are not the first one trying the though ;-) See:
>
> http://news.povray.org/3c7bb095@news.povray.org
>
> Christoph
I remember. This is how I got the idea in the first place, and I've been
inspired ever since!
I've tried many variations of the same technique, including the addition
of repeated pigment functions, min/max function compilations and other
various function tweaks. I'm wondering now how I could implement a
logical function into this..... select(a,b,c). It would have to evaluate
the last evaluation to be really interesting.
I wonder what happened to Theis, the guy who was developing these
functions for real-world shape evaluation/file reduction.....
-Samuel Benge
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Samuel Benge wrote:
> Hello folks. Had an isosurface attack earlier and this is the product.
> Sorry about the file size, but I had to reduce some jpeg artifacts.
>
> The base shape (an octahedron) was warped with multiple passes of x, y
> and z cos functions using a #while loop. Each cos function is scaled
> twice as large as the next (both in size and strength). The variable
> responsible for this begins with a value of 1 and counts by itself till
> it reaches 128 like this:
> #declare V=V+V;
>
> It rendered relatively fast so I added one 2x2 area_light to help the
> initial point light.
>
> Questions, comments, ideas?
>
> -Samuel Benge
Neat.
It has the feel of a fractal about it.
BTW my math isn't the best, so your explaination kind of
went over my head :-).
--
Bill Hails
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Bill Hails wrote:
> Neat.
> It has the feel of a fractal about it.
>
and on reflection, something about it reminds me of Escher.
--
Bill Hails
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Sam, great work as always. Care to post the code? Love to see that function.
Best,
Dennis.
"Samuel Benge" <stb### [at] hotmail com> wrote in message
news:407### [at] hotmailcom...
> Hello folks. Had an isosurface attack earlier and this is the product.
> Sorry about the file size, but I had to reduce some jpeg artifacts.
>
> The base shape (an octahedron) was warped with multiple passes of x, y
> and z cos functions using a #while loop. Each cos function is scaled
> twice as large as the next (both in size and strength). The variable
> responsible for this begins with a value of 1 and counts by itself till
> it reaches 128 like this:
> #declare V=V+V;
>
> It rendered relatively fast so I added one 2x2 area_light to help the
> initial point light.
>
> Questions, comments, ideas?
>
> -Samuel Benge
>
----------------------------------------------------------------------------
----
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
"Samuel Benge" <stb### [at] hotmailcom> schrieb im Newsbeitrag
news:407### [at] hotmailcom...
> Christoph Hormann wrote:
>
> > Neat, you are not the first one trying the though ;-) See:
> >
> > http://news.povray.org/3c7bb095@news.povray.org
> >
> > Christoph
>
>
> I remember. This is how I got the idea in the first place, and I've been
> inspired ever since!
Hi Samuel,
I'm glad that I could inspire You digging deeper into this topic !
> I've tried many variations of the same technique, including the addition
> of repeated pigment functions, min/max function compilations and other
> various function tweaks. I'm wondering now how I could implement a
> logical function into this..... select(a,b,c). It would have to evaluate
> the last evaluation to be really interesting.
Cool, sounds interesting to do that with other base-functions than
sin/cos. How does it look like?
> I wonder what happened to Theis, the guy who was developing these
> functions for real-world shape evaluation/file reduction.....
I'm here :)
I think i should post a bit more frequently, but unfortunately
I'm not that constantly productive like many others in these groups.
But if I make something new/interesting i'll post it.
At the moment I'm working on an entry for the fractal-code-competition.
I'm curious how the reactions will be =)
> -Samuel Benge
Thies
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Thies Heidecke wrote:
> "Samuel Benge"
>>It would have to evaluate
>>the last evaluation to be really interesting.
>>
> Cool, sounds interesting to do that with other base-functions than
> sin/cos. How does it look like?
It doesn't. I haven't figured out a legal way to add the functions
together without POV telling me to #undef my function first.
> I'm here :)
> I think i should post a bit more frequently, but unfortunately
> I'm not that constantly productive like many others in these groups.
> But if I make something new/interesting i'll post it.
> At the moment I'm working on an entry for the fractal-code-competition.
> I'm curious how the reactions will be =)
>
> Thies
I'm looking forward to it!
-Samuel Benge
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Looks like one of the lakes around here, where there were inlets but no
outlets, so it got saltier and saltier. Then they started syphoning the
water for the city, and the level dropped and all these rocks came out
of the water looking like this.
--
Darren New, San Diego CA USA (PST)
I am in geosynchronous orbit, supported by
a quantum photon exchange drive....
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Darren New wrote:
> Looks like one of the lakes around here, where there were inlets but no
> outlets, so it got saltier and saltier. Then they started syphoning the
> water for the city, and the level dropped and all these rocks came out
> of the water looking like this.
Do you have any photos of that? I'd be interested in seeing them :)
-Samuel Benge
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
