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"Fabien Mosen" <fab### [at] skynet be> wrote in message
news:39F19A38.1868E5DD@skynet.be...
> Bill DeWitt wrote:
> >
> > Isosurface!?! What? Little isosurface cubes stuck together?
>
> No. It's a combination of triangle waves functions at multiple
> frequencies. Simple but ingenious idea, nonetheless.
I sort of knew it wasn't little blocks stuck together, but I was hoping
that it was done with a fractal formula and that we could modify it to
develop other fractal shapes.
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Hey it's pretty good. If the sponge were a little smaller and the trees a
little larger, i can picture it as some sort of hidden ruin of an ancient
civilization. There's no hidding this one though :)
I can also see some small woodland creatures taking up living arrangements
in it.
What was the original intent?
peace,
ross
David Fontaine <dav### [at] faricy net> wrote in message
news:39F12B96.CD8ED61F@faricy.net...
> Went astray from the original intent but came out halfway decent IMO. So
> maybe the ground is a little bumpy and the trees and clouds are totally
> fake... but it's better than a checkered floor. :)
>
> Sponge is an isosurface! :))) Ground is too.
>
> Render time 6:41:27 (PIII450) peak mem 104206324 (this all comes from
> the trees)
>
> Comments? Comment! heh
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Bill DeWitt wrote:
> I sort of knew it wasn't little blocks stuck together, but I was hoping
> that it was done with a fractal formula and that we could modify it to
> develop other fractal shapes.
It probably can be made that way, if you generate the formula with
a recursive algorithm (sort of lsystem, maybe ?).
#declare formula = {
#while loop..
#declare frequency = frequency*2;
+ sub_formula_using_frequency_as_a_parameter
#increment loop..
#end loop.
}
Fabien.
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Pretty nice!
It feels like a fractal isosurface of some sort!
I gotta get a hand on those isosurfaces, I still have only povray!
--
+-------------------------+----------------------------------+
| Simon Lemieux | Website : http://www.666Mhz.net |
| Email : Sin### [at] 666Mhz net | POV-Ray, OpenGL, C++ and more... |
+-------------------------+----------------------------------+
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Phil Clute wrote:
> Add a parking lot and folks with briefcases; like they're going to a
> menger sponge office building. :)
That was the plan, but it would multiply the amount of work already put
into it about tenfold... I s'pose blob-men would be great, but no cars!
--
David Fontaine <dav### [at] faricy net> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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Mick Hazelgrove wrote:
> Very nice, I like the feel of the whole thing. You've got the sky just
> right. Intrigued by the trees, how were they done?
They're my age-old macro... look very strange with no leaves, like in my
"grotesque".
> All it needs now is a few million blades of grass!
heheh
--
David Fontaine <dav### [at] faricy net> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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Bill DeWitt wrote:
> "David Fontaine" <dav### [at] faricy net> wrote :
> >
> > Sponge is an isosurface! :))) Ground is too.
>
> Isosurface!?! What? Little isosurface cubes stuck together? If you have
> made it all of one isosurface, you really need to source us before our heads
> explode.
:))))) I will
each axis is made of a bunch of nested if(,,), and the three are intersected
using &.
--
David Fontaine <dav### [at] faricy net> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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"Rick [Kitty5]" wrote:
> > Render time 6:41:27 (PIII450) peak mem 104206324 (this all comes from
> > the trees)
>
> i take it this means a fly thtough animation is out then :)
maybe if I ditch the trees and turn down max_trace_level from 100 <G>
--
David Fontaine <dav### [at] faricy net> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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Bill DeWitt wrote:
> I sort of knew it wasn't little blocks stuck together, but I was hoping
> that it was done with a fractal formula and that we could modify it to
> develop other fractal shapes.
You can do this in isosurface? cool
--
David Fontaine <dav### [at] faricy net> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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Ross Litscher wrote:
> What was the original intent?
Office building. But that requires more landscaping than I was willing to put
in at the moment. :)
--
David Fontaine <dav### [at] faricy net> ICQ 55354965
My raytracing gallery: http://davidf.faricy.net/
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