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From:
Subject: Re: Glass of water
Date: 8 May 2002 10:51:33
Message: <3cd93b75@news.povray.org>
"Tim Nikias" <tim### [at] gmxde> wrote in message
news:3CD938DE.44E0E9C3@gmx.de...
> Hm. How about stats like photon-spacing, radiosity-values,
> max_trace_level...?
> Triangles in scene, or blob? Isosurface? Image-maps?

Only normal primitives with CSG and the superellipsoids on the back wall and
wooden panels below the table. The room is a small closed room with one
CSG-carved window that you can see in the reflection. Small bubbles in the
water are randomly placed on the glass surface. Lighting is a combination of
a bluish sky_sphere and a bright yellowish area_light.
Photons were used only on the glass, water and table with default settings
and a count of 1000000 (one million). Radiosity with the default settings
except count 100, error_bound 1.0 and recursion_limit 5. I got some black
areas on the glass as I began with this scene, so I upped the
max_trace_level to 100 with no notable speed decrease.


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From:
Subject: Re: Glass of water
Date: 8 May 2002 11:05:14
Message: <3cd93eaa@news.povray.org>
"jkb" <joh### [at] hotmailcom> wrote in message
news:3cd93a7b@news.povray.org...
> How about the source? I'm especially interested in your glass material
> settings.

Basic glass.inc definitions and the ones I used were:
pigment { Col_Glass_Clear }
finish { F_Glass8 }
interior { I_Glass1 }

The source will be posted to p.b.s-f.


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From: Timothy R  Cook
Subject: Re: Glass of water
Date: 8 May 2002 13:33:41
Message: <3CD96175.95EBFED@bellsouth.net>

> Hi, this is just my three day modeling and two day
> rendering test, it's not perfect, but I won't render
> it again for awhile.

Bah, it's a photo.

-- 
Tim Cook
http://personal.lig.bellsouth.net/lig/z/9/z993126

-----BEGIN GEEK CODE BLOCK-----
Version: 3.12
GFA dpu- s: a?-- C++(++++) U P? L E--- W++(+++)>$
N++ o? K- w(+) O? M-(--) V? PS+(+++) PE(--) Y(--)
PGP-(--) t* 5++>+++++ X+ R* tv+ b++(+++) DI
D++(---) G(++) e*>++ h+ !r--- !y--
------END GEEK CODE BLOCK------


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From: Michael Goldshteyn
Subject: Re: Glass of water
Date: 9 May 2002 10:40:23
Message: <3cda8a57@news.povray.org>
I enhanced/modified the image a little using Photoshop, see if you like it!
I am also going to try rendering it larger on a 1 GHz machine over the
entire weekend and performing the same corrections..

Mike


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Attachments:
Download 'vesilasi-modified.jpg' (182 KB)

Preview of image 'vesilasi-modified.jpg'
vesilasi-modified.jpg


 

From:
Subject: Re: Glass of water
Date: 9 May 2002 10:45:00
Message: <3cda8b6c$1@news.povray.org>
"Michael Goldshteyn" <mik### [at] wwacom> wrote in message
news:3cda8a57@news.povray.org...
> I enhanced/modified the image a little using Photoshop, see if you like
it!
> I am also going to try rendering it larger on a 1 GHz machine over the
> entire weekend and performing the same corrections..

Very nice! I especially like the bluish water/liquid. It makes the image
sharper. Maybe I should've toned down the yellow light a little and used a
little bit less focal blur. Waiting to see your render.


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From: Michael Goldshteyn
Subject: Re: Glass of water
Date: 9 May 2002 10:50:20
Message: <3cda8cac$1@news.povray.org>
Here is what I did:

I auto-leveled/color corrected it, which removed the slightly "yellowish"
cast. Then, I selected just the glass. I did a hue adjustment on the glass
selection to make it more natural looking. Then I slightly desaturated the
rest of the scene (i.e. scene minus glass) to make the glass stand out more.
Finally, I applied an unsharp-mask to sharpen the entire image ever so
slightly.

What I did not do, but will for the larger scene:

The photon effects need a hue adjustment, as well, to be more inline with
the new hue of the glass. I am wondering if all of this could be made easier
by simply changing the glass color to a shade of blue, but in any case it
did come out looking nice, if I do say so myself :) .

Mike


message news:3cda8b6c$1@news.povray.org...
> "Michael Goldshteyn" <mik### [at] wwacom> wrote in message
> news:3cda8a57@news.povray.org...
> > I enhanced/modified the image a little using Photoshop, see if you like
> it!
> > I am also going to try rendering it larger on a 1 GHz machine over the
> > entire weekend and performing the same corrections..
>
> Very nice! I especially like the bluish water/liquid. It makes the image
> sharper. Maybe I should've toned down the yellow light a little and used a
> little bit less focal blur. Waiting to see your render.
>
>


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From: Michael Goldshteyn
Subject: Re: Glass of water
Date: 9 May 2002 10:55:22
Message: <3cda8dda$1@news.povray.org>
I forgot to ask, btw, what +a +r settings did you use for the trace you
posted?

Thanks,

Mike


message news:3cda8b6c$1@news.povray.org...
> "Michael Goldshteyn" <mik### [at] wwacom> wrote in message
> news:3cda8a57@news.povray.org...
> > I enhanced/modified the image a little using Photoshop, see if you like
> it!
> > I am also going to try rendering it larger on a 1 GHz machine over the
> > entire weekend and performing the same corrections..
>
> Very nice! I especially like the bluish water/liquid. It makes the image
> sharper. Maybe I should've toned down the yellow light a little and used a
> little bit less focal blur. Waiting to see your render.
>
>


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From:
Subject: Re: Glass of water
Date: 9 May 2002 11:14:59
Message: <3cda9273@news.povray.org>
"Michael Goldshteyn" <mik### [at] wwacom> wrote in message
news:3cda8dda$1@news.povray.org...
> I forgot to ask, btw, what +a +r settings did you use for the trace you
> posted?

I use the Windows-GUI and the default that it provides, +A0.3 and default
+R3 I think.


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From: TinCanMan
Subject: Re: Glass of water
Date: 9 May 2002 11:41:46
Message: <3cda98ba$1@news.povray.org>
> I forgot to ask, btw, what +a +r settings did you use for the trace you
> posted?

Command line switches,
they can be set in your .ini file or in 3.5 they can be set in the
command-line switch box


+An.n : sets anti-aliasing threshold  to n.n
(can also use Antialias_Threshold=n.n in .ini file)

+Rn : sets aa-depth to level n
(can also use Antialias_Depth=n in .ini file)

also:

+AMn : sets anti-aliasing sampling method to n, only 1 and 2 are valid
(can also use Sampling_Method=n in .ini file)

See the help docs on Tracing Options (section 5.2.6 in v3.5), Anti-Aliasing
options in particular, for more information.

-tgq


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From: Bill DeWitt
Subject: Re: Glass of water
Date: 9 May 2002 14:06:12
Message: <3cdaba94@news.povray.org>
"Michael Goldshteyn" <mik### [at] wwacom> wrote in message
news:3cda8a57@news.povray.org...
> I enhanced/modified the image a little using Photoshop,

    I seem to be seeing this a lot lately, and while not wanting to pick on
you, and not really caring what you do to get the image you want, I still
feel the need to have this said at least once:

    There are PhotoShop groups where people are interested in what you can
do with PhotoShop. If your image cannot be rendered directly in PovRay, then
there is little reason to post it here. If you want help learning how to
render it how you want it that might be one thing, but just asking for
comments on what is essentially a PhotoShop image is not really on topic for
this server, much less this group.

    Adding a sig or something is OK I guess, but other than that,
post-processing is pretty much cheating in my book (as if someone asked).


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