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Progress has been slow but these represent a first "state" (to borrow
from printmaking terminology,) where a few basic objectives are
realized. The idea so far is to generate the look of a spider's web from
some pseudo-randomly generated perimeter points.
The inspiration is the spider web mezzo prints of Vija Celmins
http://www.kellysalerno.com/art21/images/image34.jpg
The best results seem to come if the web strands are given a glass
material and the web is backlit.
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Look excellent!
How well does it show up against a background?
Also, see if you can get it to write "Good Pig" in there...
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Impressive, Jim.
Thomas
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Mark Birch wrote:
> Look excellent!
>
> How well does it show up against a background?
Will be part of a subsequent "state". Right now most of the web is
straight cylinders except for the perimeter strands which are cylinders
laid along splines. Well I hoped to base all the strands on splines
because in the real world, where backgrounds exist, webs are often
drooping from dew or whatever. And I do have a version where all the
strands of webbing *are* based on splines. But that version stops
inexplicably and capriciously. In fact I've spent over a week trying to
isolate the bug but cannot. So I went the simpler, less general, route
in order to move the project along. But yes I do want to play with
backgrounds, lighting, texturing a bit, recreate those early morning sun
on spiderweb dew type shots that photographers so love, and see if that
goes anywhere. There are a few different directions I want to try.
Also different types of spiders produce slightly different web patterns
which might be interesting coding problems. Much of the difference
seems to involve how each handle the perimeter. The problem I was
trying to solve in these examples is the case where the spiral starts
out pretty round, reflecting the outside perimeter shape only slightly,
but then increasingly comes to conform to the outside shape of the
perimeter, though never completely.
http://www.conservation.unibas.ch/team/zschokke/spidergallery.html
>
> Also, see if you can get it to write "Good Pig" in there...
>
>
Hee hee. E B White got there ahead of me! Well for me it will just be
hard enough to introduce vagaries into the pattern which then becomes
smoothed out again as the spiral progresses. But you never know!
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Thomas de Groot wrote:
> Impressive, Jim.
>
Thanks.
I mean, Celmins' images are impressive, spiders are impressive,
Zschokke's research is impressive. I'm just sort of after the fact. But
some of the issues intrigue me.
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"Jim Charter" <jrc### [at] msn com> schreef in bericht
news:459992dc$1@news.povray.org...
> Thomas de Groot wrote:
>> Impressive, Jim.
>>
>
> Thanks.
>
> I mean, Celmins' images are impressive, spiders are impressive, Zschokke's
> research is impressive. I'm just sort of after the fact. But some of the
> issues intrigue me.
>
Yes. I often feel that words/languages are awkward vehicles to convey the
exact feeling of one's thoughts. This is one of such cases. I am interested
in the techniques you have used, but what I find more deeply appealing here
is the sense of wonder that these (simple) images evoque. Certainly
reminiscent of Celmin's work or, let's say, a (possible) way towards
Celmin's work. However, there is the potential of different paths to be
taken from here and that is something to be looking forward to. Besides
that, there are spiders of course. There are usually a couple of them in
front of my kitchen window and each year I enjoy to contemplate the building
of the webs. Of course, that means less window cleaning, which is a very
un-dutch attitude, to be frown upon :-)
Last but not least, my best wishes for the new year.
Thomas
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