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11 Aug 2024 01:18:22 EDT (-0400)
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From: Ross
Subject: Re: Scattering Beverages: Milk?
Date: 2 Jul 2004 10:05:36
Message: <40e56bb0$1@news.povray.org>
pretty good, though it looks a little tooo dark on the dark side.. have you
seen these: http://graphics.ucsd.edu/~henrik/images/imgs/milk.jpg from here:
http://graphics.ucsd.edu/~henrik/images/subsurf.html ?


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From: Marc Jacquier
Subject: Re: Scattering Beverages: Milk?
Date: 2 Jul 2004 10:37:57
Message: <40e57345@news.povray.org>

40e548c3@news.povray.org...
> More media stuff..
>
> This time it's Milk. I think... Does it look convincingly like milk?
>
Definitely, if you like 0% fat milk :)

Marc


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From: Marc Jacquier
Subject: Re: Scattering Beverages: Milk?
Date: 2 Jul 2004 10:40:02
Message: <40e573c2@news.povray.org>

40e56a5c$1@news.povray.org...
>
> Haven't seen a glass of milk in several years, but it looks exactly how
> I remember.
>
>   -Shay

Do I guess right if I do your drinks are amber couloured?  ;-)

Marc


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From: Alain
Subject: Re: Scattering Beverages: Milk?
Date: 2 Jul 2004 10:45:27
Message: <40e57507$1@news.povray.org>
Mike Raiford nous apporta ses lumieres ainsi en ce 02/07/2004 07:36... :

> More media stuff..
>
> This time it's Milk. I think... Does it look convincingly like milk?
>
> ------------------------------------------------------------------------
>
Is that a real render or a studio photo? Ho! That hint of banding in the 
shadow, it must comes from an area light. Adding photons maping and 
making the area light dencer with jitter will make it more realistic.

Alain


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From: Chambers
Subject: Re: Scattering Beverages: Milk?
Date: 2 Jul 2004 12:05:00
Message: <web.40e58683e1c8614bca11893c0@news.povray.org>
Mike Raiford <mra### [at] hotmailcom> wrote:
> More media stuff..
>
> This time it's Milk. I think... Does it look convincingly like milk?

While I agree with others that it looks very good, I'd also say that there
is too much contrast in the milk itself.  In my experience, even with such
an extreme lighting condition, milk doesn't get that bright *or* that dark.
 Of course, this might be a deficiency in the lighting and not the milk
itself.  I've run into the same problem, which is why I went with soda pop
instead of milk for my test renders :)

Good job otherwise, and I can't wait for the next version!

....Chambers


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From: Josh
Subject: Re: Scattering Beverages: Milk?
Date: 2 Jul 2004 12:15:15
Message: <40e58a13$1@news.povray.org>
Good.

I think it needs a higher definition area light and perhaps another light
source to give it that "real" edge.


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From: Mike Raiford
Subject: Re: Scattering Beverages: Milk?
Date: 2 Jul 2004 12:33:26
Message: <40e58e56$1@news.povray.org>
Josh wrote:

> Good.
> 
> I think it needs a higher definition area light and perhaps another light
> source to give it that "real" edge.
> 
> 


it does. But, with media it seems like area lights slow rendering down 
quite a log. I tried Jitter as others have suggested, and wasn't pleased 
with the results.

I'm running another render, this time with some more scenery, I've 
adjusted the lighting slightly. One significant change was doubling the 
dimensions of the area light 4x4 samples, now.

And it's taking it's sweet time to render.


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From: Mike Raiford
Subject: Re: Scattering Beverages: Milk?
Date: 2 Jul 2004 12:36:21
Message: <40e58f05$1@news.povray.org>
marabou wrote:

> i think it looks like milk (got thursty). of course healthy milk has
> more fat...
> maybe glass could have another color or background color tricks a bit. 
> and a second soft light source should make it more realistic. it looks
> slightly like a picture made in a bunker(?).

Believe it or not, there are two light sources, The second is quite 
toned down from the first. Media and lighting seem to sometimes be a 
very careful balancing act.

This is really one of the first times I have had the opportunity to play 
with the media a bit more and actually get good results.


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From: Josh
Subject: Re: Scattering Beverages: Milk?
Date: 2 Jul 2004 12:36:48
Message: <40e58f20$1@news.povray.org>
> And it's taking it's sweet time to render.

Yep.  However  the result are worth it with PovRay.  I did a very simple
scene, a pen on a counter top.  final rendering 30x30 light + two other
no_shadow point lights as fillers.  Sweeeeeeeet, left it running overnight
.... and half the next day.


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From: Mike Raiford
Subject: Re: Scattering Beverages: Milk?
Date: 2 Jul 2004 12:37:33
Message: <40e58f4d$1@news.povray.org>
Ross wrote:

> pretty good, though it looks a little tooo dark on the dark side.. have you
> seen these: http://graphics.ucsd.edu/~henrik/images/imgs/milk.jpg from here:
> http://graphics.ucsd.edu/~henrik/images/subsurf.html ?

Actually, this was my inspiration. To me, the milk in those images seems 
to have a bit of a yellow cast that I don't like. But -- that may be 
closer to realism.


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