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From: Christoph Hormann
Subject: Let it snow (72k)
Date: 27 Nov 2000 17:37:04
Message: <3A22E208.5E5690EF@gmx.de>
Just thought it's about time to start the winter season, the first
christmas trees are also being grown, so here is some fresh snow...

It's written new from scratch in about 1-2 hours, i wonder if there is
already a good snow macro available, but i don't remember anything.

The construction is quite simple, blob compontents positioned by trace
(47000 in total) so a lot of things are not yet very realistic.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/


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Attachments:
Download 'snow_01.jpg' (72 KB)

Preview of image 'snow_01.jpg'
snow_01.jpg


 

From: Remco de Korte
Subject: Re: Let it snow (72k)
Date: 27 Nov 2000 18:35:38
Message: <3A22EFA7.EE2FD227@onwijs.com>
I like this very much!
I can see some imperfections but it's promising to say the least.

Remco

Christoph Hormann wrote:
> 
> Just thought it's about time to start the winter season, the first
> christmas trees are also being grown, so here is some fresh snow...
> 
> It's written new from scratch in about 1-2 hours, i wonder if there is
> already a good snow macro available, but i don't remember anything.
> 
> The construction is quite simple, blob compontents positioned by trace
> (47000 in total) so a lot of things are not yet very realistic.
> 
> Christoph
> 
> --
> Christoph Hormann <chr### [at] gmxde>
> Homepage: http://www.schunter.etc.tu-bs.de/~chris/
> 
>   --------------------------------------------------------------------------------
>  [Image]


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From: Chris Huff
Subject: Re: Let it snow (72k)
Date: 27 Nov 2000 18:50:56
Message: <chrishuff-62A725.18512927112000@news.povray.org>
There are some regular patterns from the fact that you used a grid to 
position the components...maybe a random placement would be better. You 
could also use eval_pattern() or eval_pigment() to control the density 
of the snow, make it look more uneven on the flat areas.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

<><


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From: Steve
Subject: Re: Let it snow (72k)
Date: 27 Nov 2000 19:09:21
Message: <slrn925t1f.eoe.steve@zero-pps.localdomain>
You cheated, you used shaving foam instead. 

-- 
Cheers
Steve              email mailto:ste### [at] zeroppsuklinuxnet

%HAV-A-NICEDAY Error not enough coffee  0 pps. 

web http://www.zeropps.uklinux.net/

or  http://start.at/zero-pps

 11:44pm  up 48 days,  2:07,  2 users,  load average: 1.00, 1.01, 1.00


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From: Josh English
Subject: Re: Let it snow (72k)
Date: 27 Nov 2000 19:24:05
Message: <3A22FAC1.6BADE805@spiritone.com>
The snow looks thicker than it probably should, but it is very very cool. It
needs icicles. Also, it looks like the snow fell straight down, does your
method allow you to defind a wind direction that would place the snow to one
side of everything?

Josh

Christoph Hormann wrote:

> Just thought it's about time to start the winter season, the first
> christmas trees are also being grown, so here is some fresh snow...
>
> It's written new from scratch in about 1-2 hours, i wonder if there is
> already a good snow macro available, but i don't remember anything.
>
> The construction is quite simple, blob compontents positioned by trace
> (47000 in total) so a lot of things are not yet very realistic.
>
> Christoph
>
> --
> Christoph Hormann <chr### [at] gmxde>
> Homepage: http://www.schunter.etc.tu-bs.de/~chris/
>
>   ------------------------------------------------------------------------
>  [Image]


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From: Chris Huff
Subject: Re: Let it snow (72k)
Date: 27 Nov 2000 21:38:32
Message: <chrishuff-88EB98.21390527112000@news.povray.org>
In article <3A22FAC1.6BADE805@spiritone.com>, eng### [at] spiritonecom 
wrote:

> The snow looks thicker than it probably should,

We had a snow that looked exactly like this a couple days ago...all you 
need is a damp snow that is constantly drifting straight down, with 
little wind and no sun.


> but it is very very cool. 

Very funny...


> It needs icicles.

Isosurfaces!


> Also, it looks like the snow fell straight down, does your method 
> allow you to defind a wind direction that would place the snow to one 
> side of everything?

I think he just used the trace() function going straight down from the 
sky. Slanting the direction you give trace() should give you something 
like that effect.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

<><


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From: Christoph Hormann
Subject: Re: Let it snow (72k)
Date: 28 Nov 2000 02:53:40
Message: <3A236483.BCBFD478@gmx.de>
Remco de Korte wrote:
> 
> I like this very much!
> I can see some imperfections but it's promising to say the least.
> 
> Remco
> 

Thank You.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/


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From: Christoph Hormann
Subject: Re: Let it snow (72k)
Date: 28 Nov 2000 02:56:23
Message: <3A236528.A9FDE327@gmx.de>
Steve wrote:
> 
> You cheated, you used shaving foam instead.
> 

:-)

I think foam would probably need a bit less 'heavy' texture.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/


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From: Christoph Hormann
Subject: Re: Let it snow (72k)
Date: 28 Nov 2000 02:57:08
Message: <3A236554.C7F5B018@gmx.de>
Chris Huff wrote:
> 
> There are some regular patterns from the fact that you used a grid to
> position the components...maybe a random placement would be better. 

I don't think completely random would be good, but some 'jitter' could
probably help.

> You
> could also use eval_pattern() or eval_pigment() to control the density
> of the snow, make it look more uneven on the flat areas.
> 

That's a good idea, thanks.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/


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From: Christoph Hormann
Subject: Re: Let it snow (72k)
Date: 28 Nov 2000 03:02:59
Message: <3A2366B3.CD6C1B97@gmx.de>
Josh English wrote:
> 
> The snow looks thicker than it probably should, but it is very very cool. It
> needs icicles. Also, it looks like the snow fell straight down, does your
> method allow you to defind a wind direction that would place the snow to one
> side of everything?
> 

Just changing the direction would not be that good, because the snow
should much depend on tho slope, so you would have to take the normal
vector into account (right now it isn't used).  Usually the snow on the
wind side of objects is thinner and less regular.

icicles would be nice, but they would involve pretty much calculation to
be placed properly.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/


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