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4 Feb 2023 20:06:45 EST (-0500)
  Amazonas (Message 11 to 20 of 34)  
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From: Jaime Vives Piqueres
Subject: Re: Amazonas
Date: 16 May 2010 05:57:35
Message: <4befc18f$1@news.povray.org>

> You're making me wonder if Avatar is such an achievement after all.

   I don't know: I haven't watched that film, and I've not read anything
about it... all I know is that it features CG people with blue skin! But
thanks for the comparison: must mean it looked convincing enough... :)


-- 
Jaime Vives Piqueres

http://www.ignorancia.org


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From: Jaime Vives Piqueres
Subject: Re: Amazonas
Date: 16 May 2010 06:12:50
Message: <4befc522@news.povray.org>

> For being a "quick hack", this render is very nicely done!

   It's just one of these rare cases where everything was right almost at
first try.

> A little more color variation could help the trees,

   I tried it at first, but then I didn't like it, and made the variation
more subtle, perhaps too much.

> and the smoke looks a little off, possibly because it was designed for a
> smaller-scale scene.

   Yes, and also because the shape is too simple.

> For the most part, though, it looks good!

   Thanks!

> It must be nice to have inspiration :(

   It's a shame that nonexistent things can't be shared... :)


-- 
Jaime Vives Piqueres

http://www.ignorancia.org


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From: Jaime Vives Piqueres
Subject: Re: Amazonas
Date: 16 May 2010 06:14:40
Message: <4befc590$1@news.povray.org>

> "Quick hack"... you are joking Jaime! Such a scene would take me a couple
> of days at least.

   Well, at least by my POV-Ray standards, a couple of days IS a quick hack!

> Excellent, as always. Very photographic.

   Thanks!

-- 
Jaime Vives Piqueres

http://www.ignorancia.org


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From: nemesis
Subject: Re: Amazonas
Date: 16 May 2010 10:00:00
Message: <web.4beffa1b9c4c180cf87ea7120@news.povray.org>
spot-on!  Even the muddy waters:

http://i.treehugger.com/images/2007/10/24/amazon-river.jpg

Would it be too hard to introduce some variance to the density of distribution
and color of the trees?  Also, some are larger than others...


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From: Darren New
Subject: Re: Amazonas
Date: 16 May 2010 13:12:54
Message: <4bf02796$1@news.povray.org>
Very nice. This will be my background for a while.

Maybe I've been playing with video games too long, but my first thought was 
"he could make that tileable if he moved the river a bit."

I think shorter trees near the river might lend a bit more of an air of realism.

-- 
Darren New, San Diego CA, USA (PST)
    Ada - the programming language trying to avoid
    you literally shooting yourself in the foot.


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From: Dave Blandston
Subject: Re: Amazonas
Date: 16 May 2010 14:45:01
Message: <web.4bf03c749c4c180ccba3fb0f0@news.povray.org>
This picture makes me want to travel to the Amazon for an adventure! It's very
beautiful!

Regards,
Dave Blandston


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From: Paolo Gibellini
Subject: Re: Amazonas
Date: 17 May 2010 05:54:25
Message: <4bf11251$1@news.povray.org>
>Jaime Vives Piqueres  on date 15/05/2010 09:48 wrote:
> Hi All:
>
> Google image search is becoming my first source for unexpected
> inspiration... as usual, I was searching for something else, when found a
> nice aerial pic of the Amazon river.
>
It's impressive, looks so... natural!
;-)
Paolo


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From: Jaime Vives Piqueres
Subject: Re: Amazonas
Date: 18 May 2010 07:12:42
Message: <4bf2762a@news.povray.org>

> spot-on!  Even the muddy waters:
>
> http://i.treehugger.com/images/2007/10/24/amazon-river.jpg

   Thanks, also for the reference pic, as it served to polish some details,
including some of the ones you mention later.

   For the color variation I used directly colors picked from the pic you
linked, but they don't look so natural... perhaps because the sunlight color
is somewhat yellowish.

   I think the density of the distribution is now better, but that was a nice
side effect of trying to implement a suggestion from Darren... ;)

-- 
Jaime Vives Piqueres

http://www.ignorancia.org


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Attachments:
Download 'amazonas-07.jpg' (572 KB)

Preview of image 'amazonas-07.jpg'
amazonas-07.jpg


 

From: Jaime Vives Piqueres
Subject: Re: Amazonas
Date: 18 May 2010 07:31:25
Message: <4bf27a8d$1@news.povray.org>
El 16/05/10 19:12, Darren New escribió:
> Very nice. This will be my background for a while.

   Thanks!

> I think shorter trees near the river might lend a bit more of an air of
> realism.

   Actually, this was a great suggestion, specially because it lead to many
other little but important changes.

   At first it looked too difficult to implement your suggestion, but in fact
it was very easy when I figured it out... again, the pigment function came
to the rescue: I used a heavily blurred version of the heightfield image
(which is basically a black river over a white background), and used that as
a multiplier to the trees scale. Simple, isn't? :)

   I used additional tricks based on the same function, like translating the
trees down as they approach the river, so the ones just at the edge only
show the foliage, or like increasing the density of the distribution also
near the river (see the pic on my response to nemesis).

   Thanks again!


-- 
Jaime Vives Piqueres

http://www.ignorancia.org


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From: Jaime Vives Piqueres
Subject: Re: Amazonas
Date: 18 May 2010 07:36:21
Message: <4bf27bb5$1@news.povray.org>

> This picture makes me want to travel to the Amazon for an adventure! It's
> very beautiful!

   Thanks!

-- 
Jaime Vives Piqueres

http://www.ignorancia.org


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