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> Here you are:
LOL... Thanks!
Nice work.
Andrew.
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Gena wrote:
> The whole snowflake is built from 12 triangles.
Shouldn't it be "snow crystals"? If snowflakes looked like that, I think
even a gentle snowfall would be dangerous :)
/Ib
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Uh-oh. Looks like at least a vague relation to cellular
automata. Better give credit to Stephen Wolfram. ;)
--
___ ______________________________________________
| \ |_ website: http://davidf.faricy.net/
|_/avid |ontaine email: <dav### [at] faricy net>
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I've used the same technique in my Snowman
image, made Christmas 2001 (You can find
it in my widescreen gallery). I've always wanted
to make a macro which uses triangles and
real 3D-Structures to make flakes for close-ups.
Anyone remember the intro scene of "A Mouse tail"?
Snowflakes are falling to the ground as russian
houses are burned and the mouse head for a ship
to go to "Amerricaaa" :-) The facettes are seen so close-
up, there are highlights visible... I always wanted to
do that at some point, it just looks terrific.
Regards,
Tim
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Tim Nikias
Homepage: http://www.digitaltwilight.de/no_lights/index.html
Email: Tim### [at] gmx de
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In article <3DC### [at] ibras dk>, Ib Rasmussen <ib### [at] ibras dk> wrote:
> Shouldn't it be "snow crystals"? If snowflakes looked like that, I think
> even a gentle snowfall would be dangerous :)
But they are snowflakes, and they do often look very much like that.
Language issues?
BTW, a gentle snowfall can be dangerous, things can get very slippery
and visibility can be very low.
--
Christopher James Huff <cja### [at] earthlink net>
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POV-Ray TAG: chr### [at] tag povray org
http://tag.povray.org/
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Christopher James Huff wrote:
> In article <3DC### [at] ibras dk>, Ib Rasmussen <ib### [at] ibras dk> wrote:
>
>
>>Shouldn't it be "snow crystals"? If snowflakes looked like that, I think
>> even a gentle snowfall would be dangerous :)
>>
>
> But they are snowflakes, and they do often look very much like that.
> Language issues?
Perhaps. According to my Oxford dictionary, snowflakes is the
collections of snow crystals, in which snow falls, i.e. several crystals
bunched together.
> BTW, a gentle snowfall can be dangerous, things can get very slippery
> and visibility can be very low.
I was thinking more af being hit by large icy ninja stars :)
/Ib
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In article <3DC### [at] ibras dk>, Ib Rasmussen <ib### [at] ibras dk>
wrote:
> Perhaps. According to my Oxford dictionary, snowflakes is the
> collections of snow crystals, in which snow falls, i.e. several crystals
> bunched together.
Well, when the snow is damp, the "flakes" do bunch together. The flakes
aren't a random assortment of individual crystals, though, each flake is
a crystal. A snowflake is a snow crystal in every definition I've seen
until now.
Here's a good site I just found, lots of interesting stuff:
http://www.its.caltech.edu/~atomic/snowcrystals/
Hmm...one of the people who did stuff for that site was a Patricia
Rasmussen. A relative? Anyway, they seem to use your definition...I
don't know why they call a flake a crystal and a clump of flakes a flake.
> I was thinking more af being hit by large icy ninja stars :)
Well, they are only a couple millimeters across, so that isn't much of a
problem. They do hurt when it's windy and cold, though.
You don't get snow where you are?
--
Christopher James Huff <cja### [at] earthlink net>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tag povray org
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Christopher James Huff wrote:
> http://www.its.caltech.edu/~atomic/snowcrystals/
> Hmm...one of the people who did stuff for that site was a Patricia
> Rasmussen. A relative?
Not that I know of. (Rasmussen is a very common name in Scandinavia.)
> Anyway, they seem to use your definition...I
> don't know why they call a flake a crystal and a clump of flakes a flake.
Could it be that I am right :)
> You don't get snow where you are?
It has been known to happen, here in Denmark. It just don't seem to fall
as individual crystals, always at larger agglomarates i.e. flakes.
I think we'll just have to agree that we disagree, and stop this, before
we are sent to off-topic.
/Ib
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In article <3DC### [at] ibras dk>, Ib Rasmussen <ib### [at] ibras dk>
wrote:
> > Anyway, they seem to use your definition...I
> > don't know why they call a flake a crystal and a clump of flakes a flake.
> Could it be that I am right :)
Or that it is a regional thing...as I mentioned, I'd never heard that
definition before.
The main thing I don't understand is: why are clumps called flakes? They
aren't flake shaped, the crystals are (usually). The clumps are just
irregular ball shapes, sometimes (relatively) big chains. Maybe I'm just
expecting things to make too much sense.
--
Christopher James Huff <cja### [at] earthlink net>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tag povray org
http://tag.povray.org/
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Gena Obukhov <obu### [at] mail com> wrote:
> The result of Snowflake macro. The idea was borrowed from
> the posting in this newsgroup (by Steve 12 Dec 2001).
> See the source in p.b.s.f.
>
> Gena.
Thats an old topic, and I know that now are better snowflakes models.
But while I'm reading this I have one idea.
I belive its L-system with 60 degree rotation six elements and decreasing
length. Am I right?
What about random elements? What about make it a 60+((rand(ANY_SEED)-0.5)*
SCALE, (where SCALE is quite small) rotation and length decreasing with
also random scaling? And maybe a random #if ? For example :
#if rand(seed)<0.96
// make next recursion step
#end
When i have more free time I'll try to make that snowflakes.
Woland.
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