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From: yooper
Subject: Re: ordinary icicles, photons & media used [~39KB Jpg]
Date: 9 May 2001 21:19:57
Message: <3af9ecbd@news.povray.org>
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Seems someone asked about icicles and now I can't locate the message.
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Yeah ... I did somewhere . . . ?
I'd be interested in what you use to form them ... also the texture.
Looks like you've got some light shining through . . . photons ???
I love ice . . . any code for textures or ideas will be most welcome.
tnx
Y
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From: yooper
Subject: Re: ordinary icicles, photons & media used [~39KB Jpg]
Date: 9 May 2001 21:19:58
Message: <3af9ecbe@news.povray.org>
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the sharpness - real icicles are a bit round on the sharp end. Quite
close to the size of a waterdrop, for obvious reasons :-).
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depends on whether it's adding ice or melting . . . I often take the large
ones off my eaves and stick them upside down around my bird feeder . . .
make for a nice light show and as they melt, the tip becomes needle thin.
(not all that much to do in Winter in da UP, eh?)
Y
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From: Bob H
Subject: Re: ordinary icicles, photons & media used [~39KB Jpg]
Date: 10 May 2001 01:57:52
Message: <3afa2de0@news.povray.org>
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When I get it into a macro I'll post it at p.t.s-f.
It's all one blob, media filled, and photons using Nathan's
color-dispersion-for-light-source macro, which didn't show up really in this
one.
Bob H.
"yooper" <Out### [at] huntel net> wrote in message
news:3af9ecbd@news.povray.org...
> I'd be interested in what you use to form them ... also the texture.
> Looks like you've got some light shining through . . . photons ???
>
> I love ice . . . any code for textures or ideas will be most welcome.
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From: Bob H
Subject: Re: ordinary icicles, photons & media used [~39KB Jpg]
Date: 10 May 2001 02:00:29
Message: <3afa2e7d@news.povray.org>
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"Sander" <san### [at] stolscom> wrote in message
news:MPG### [at] NEWSPOVRAYORG...
>
> I also know you had better not melt them on top of a
> hot burning stove :)
Somewhat explosive huh? Could be from trapped air if so.
Bob H.
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From: Bob H
Subject: Re: ordinary icicles, photons & media used [~39KB Jpg]
Date: 10 May 2001 02:04:16
Message: <3afa2f60@news.povray.org>
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"Christoph Hormann" <chr### [at] gmxde> wrote in message
news:3AF97DA8.25C96CA1@gmx.de...
>
> Looks good, maybe add some variation in size and come icing apart from the
> icicles themselves.
Yep, doing that. It's been proving a slow creation from media and photons
though since I keep wanting to see it as it should finally be.
> How about an universal macro for automatic icicling(?) of buildings etc.?
Because I'm not a miracle worker with POV-Ray macros I think not.
Bob H.
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From: Bob H
Subject: Re: ordinary icicles, photons & media used [~40KB Jpg]
Date: 10 May 2001 10:37:53
Message: <3afaa7c1@news.povray.org>
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I've managed to get rounded tips but I'd say the media is too much in this
one, noticeably bluish too. The far right icicle is washed out like before,
must be the closer alignment with camera and light with the specular
highlighting shining so much. Doesn't look too good.
The lengths are all the same still so when I have that fixed I'll post the
pov script, I'm so close already might as well finish it. Slow as I may be.
Bob H.
Post a reply to this message
Attachments:
Download 'iciclesmediaphotonscene2.jpg' (39 KB)
Preview of image 'iciclesmediaphotonscene2.jpg'
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From: Christoph Hormann
Subject: Re: ordinary icicles, photons & media used [~40KB Jpg]
Date: 10 May 2001 12:02:09
Message: <3AFABBB9.709D6FCB@gmx.de>
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"Bob H." wrote:
>
> I've managed to get rounded tips but I'd say the media is too much in this
> one, noticeably bluish too. The far right icicle is washed out like before,
> must be the closer alignment with camera and light with the specular
> highlighting shining so much. Doesn't look too good.
> The lengths are all the same still so when I have that fixed I'll post the
> pov script, I'm so close already might as well finish it. Slow as I may be.
>
The shape looks good now (apart from the uniform length), but I don't like
the color. Also some surrounding for reflection would be good of course.
Christoph
--
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other
things on: http://www.schunter.etc.tu-bs.de/~chris/
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From: Jari Juslin
Subject: Re: ordinary icicles, photons & media used [~39KB Jpg]
Date: 10 May 2001 17:46:53
Message: <3AFB0C4C.320CAA49@iki.fi>
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yooper wrote:
> depends on whether it's adding ice or melting . . . I often take
> the large ones off my eaves and stick them upside down around my
> bird feeder . . .
> make for a nice light show and as they melt, the tip becomes needle
> thin. (not all that much to do in Winter in da UP, eh?)
I think the keyword was "upside down". If they melt on the same
direction they freezed, the tip is round even when melting.
--
/"\ | iki.
\ / ASCII Ribbon Campaign | fi/
X Against HTML Mail | zds
/ \
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From: yooper
Subject: Re: ordinary icicles, photons & media used [~39KB Jpg]
Date: 10 May 2001 22:58:05
Message: <3afb553d@news.povray.org>
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I think the keyword was "upside down". If they melt on the same
direction they freezed, the tip is round even when melting.
-------
They change shape and texture with every freeze and thaw . . .
that's what makes them so interesting to me.
Icicles are cool ;)
Y
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From: yooper
Subject: Re: ordinary icicles, photons & media used [~40KB Jpg]
Date: 10 May 2001 23:06:07
Message: <3afb571f@news.povray.org>
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The shape looks good now (apart from the uniform length), but I don't like
the color. Also some surrounding for reflection would be good of course.
Christoph
******
I find that the color of the surroundings is all important . . . the ice
texture reflects, transmits and filters everything around. And it varies
with the temperature ... they can be crystal clear or opaque . . . or
anywhere in-between.
Y
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