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Here's what I ended up with for now and anyone should be able to figure it
out enough, the pov script containing macro in this scene is posted at
p.t.s-f.
Thought I better get it put there before I went too far with it and messed
things up.
Bob H.
--
http://webpages.charter.net/omniverse/omniverse.htm
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Attachments:
Download 'iciclesmacro.jpg' (30 KB)
Preview of image 'iciclesmacro.jpg'
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From: Christoph Hormann
Subject: Re: icicles macro render [~45KB Jpg]
Date: 10 May 2001 16:46:49
Message: <3AFAFE72.A6A8BB7D@gmx.de>
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"Bob H." wrote:
>
> Here's what I ended up with for now and anyone should be able to figure it
> out enough, the pov script containing macro in this scene is posted at
> p.t.s-f.
> Thought I better get it put there before I went too far with it and messed
> things up.
>
It somehow does not look very 'cold', maybe a lower roughness would be
good. Thanks for the code.
Christoph
--
Christoph Hormann <chr### [at] gmx de>
IsoWood include, radiosity tutorial, TransSkin and other
things on: http://www.schunter.etc.tu-bs.de/~chris/
Post a reply to this message
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Some of the tips look a bit rounded. Are they melting or really small
icicles? I remember icicles being more pointed like those in the middle of
the picture. Are these drops of water on the tips? The caustics look great.
Sometimes, we have one that reaches a length of about seven feet long before
falling.
Brendan
"Bob H." wrote:
> Here's what I ended up with for now and anyone should be able to figure it
> out enough, the pov script containing macro in this scene is posted at
> p.t.s-f.
> Thought I better get it put there before I went too far with it and messed
> things up.
>
> Bob H.
> --
> http://webpages.charter.net/omniverse/omniverse.htm
>
> [Image]
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Andrea Ryan <ary### [at] global2000net> wrote:
> Sometimes, we have one that reaches a length of about seven feet
> long before falling.
This winter, we had one reach from the roof to the ground, forming a
column about 1-2 inches at its thinnest point...probably 10-12 feet
tall.
--
Christopher James Huff - chr### [at] maccom
Home Page: http://homepage.mac.com/chrishuff/
POV-Ray TAG e-mail: chr### [at] povrayorg
POV-Ray TAG web site: http://tag.povray.org/
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Thanx for the code, Bob ...
looks like a warm spring day when they are beginning to melt
and become less translucent and on their way to opaque.
I still think the pointy ones look closer but . . . I will mess with
your code and see what happens.
Tnx again,
Y
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"Andrea Ryan" <ary### [at] global2000net> wrote in message
news:3AFB3E1D.5818B3C9@global2000.net...
> Some of the tips look a bit rounded. Are they melting or really small
> icicles? I remember icicles being more pointed like those in the middle
of
> the picture. Are these drops of water on the tips? The caustics look
great.
You're joking right? You think I'd put water droplets in there too? :-)
Just pretend they are maybe melting or freezing. A media change makes a
huge difference in how they look but I finally left it as is for anyone else
to modify that part.
The shapes change dramatically for different parameters.
I took the regular 'caustics' keyword out, figuring it competed with the
photon mapping.
> Sometimes, we have one that reaches a length of about seven feet long
before
> falling.
I didn't specify it unit-wise but inch=unit would probably fit. It's not
apparent what length you might actually get I guess, since if 10 is used for
"size" then a 3 for "length" you wouldn't get a maximum of 13 units, and not
7 units, but something like a range from 9.875 to 7.625 units. What's more
is with it being a blob the threshold value changes it drastically overall.
#while (C>In+(Il+(IRl*(6-Iv)))) // a real mess for sure
Where In is the zero ending point, Il is 0 to 2 (random), IRl is 0.125 to 1
(also random), and Iv the Length variable (intended to be 0 to 5). The C is
of course the beginning size (related to both length and girth).
Confusing, isn't it? I had trouble getting a random number to be used so
it's worse than would have otherwise been. It's still my typical chaotic
scripting besides.
Hopefully this explains things a bit anyhow.
Bob H.
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"Christoph Hormann" <chr### [at] gmxde> wrote in message
news:3AFAFE72.A6A8BB7D@gmx.de...
>
> It somehow does not look very 'cold', maybe a lower roughness would be
> good. Thanks for the code.
Welcome to it. I had it looking glassy once and so went with a more glossed
over appearance; it might be better to lower the specular number, esp. since
phong is used too. I thoroughly expect everyone will make changes.
Bob H.
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"Chris Huff" <chr### [at] maccom> wrote in message
news:3afb554d@news.povray.org...
> Andrea Ryan <ary### [at] global2000net> wrote:
>
> > Sometimes, we have one that reaches a length of about seven feet
> > long before falling.
>
> This winter, we had one reach from the roof to the ground, forming a
> column about 1-2 inches at its thinnest point...probably 10-12 feet
> tall.
Those sound dangerous or property-damaging to me. Largest ones I get here
are from a feeble little spring out of a slab of rock, only a meter long at
most.
Bob H.
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Bob H. <omn### [at] msncom> wrote:
> Those sound dangerous or property-damaging to me. Largest ones I get here
> are from a feeble little spring out of a slab of rock, only a meter long at
> most.
Property damaging? Yes, they can do things like pull off gutters, do
damage when they fall on things...we were a little worried it would
break off at the top and fall through a window. Then there's damage
from the ice itself...it managed to cleanly remove a good amount of
paint by creeping under it and expanding, and it can pry its way into
the house and form leaks.
Dangerous? Yep...that one was about 8-10 inches (about 20-25 cm)
across at the top, and remained thick for most of its length...that's
a lot of water, very heavy, and most of it elevated above head level.
We eventually broke it off ourselves, to make sure it didn't do
anything.
--
Christopher James Huff - chr### [at] maccom
Home Page: http://homepage.mac.com/chrishuff/
POV-Ray TAG e-mail: chr### [at] povrayorg
POV-Ray TAG web site: http://tag.povray.org/
Post a reply to this message
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> > Sometimes, we have one that reaches a length of about seven feet
> > long before falling.
>
> This winter, we had one reach from the roof to the ground, forming a
> column about 1-2 inches at its thinnest point...probably 10-12 feet
> tall.
Thought these photos might come in handy if you need any reference
material. Taken in the UK at Christmas with my trusty
Nikon 950 digicam...
http://www.xlcus.co.uk/photos/2000-12-28-miltonsnow/half/miltonsnow19h.jpg
http://www.xlcus.co.uk/photos/2000-12-28-miltonsnow/half/miltonsnow20h.jpg
--
Jonathan Hunt
http://www.xlcus.co.uk/povray/
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