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From: kike
Subject: Atrapado (Trapped) lighter version
Date: 18 Jul 2007 05:40:02
Message: <web.469ddf5ca259d379be7bfb550@news.povray.org>
Due to the critics (you all were right) I have modified the image (not
rendered but brightness-contrast-gamma corrected) just to make you see all
the elements of the image.

The title comes from the guy in the bus stop. There is a poster with a guy
inside trying to scape.

I'll change the light in the scene and try to get a better result.

Thanks for the critics and interesting ideas.


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From: kike
Subject: Re: Atrapado (Trapped) lighter version
Date: 18 Jul 2007 05:45:02
Message: <web.469de0692a765766be7bfb550@news.povray.org>
Sorry, I have just notice that it is still too dark. Damned screens!!!!


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From: Agustin Britait Molina
Subject: Re: Atrapado (Trapped) lighter version
Date: 19 Jul 2007 01:55:01
Message: <web.469efb662a7657668c9d87920@news.povray.org>
"kike" <dry### [at] hotmailcom> wrote:
> Sorry, I have just notice that it is still too dark. Damned screens!!!!

the question not is higher the lights, is add some other fill lights...
example locate a blue-dark light in the right of the image. some other
lights distributed with comun sense makes the scene more dinamic without
need "lighter" it

sry for my horrible english

(the same msg in spanish to kike)

La idea no es aumentar la potencia de las luces existentes, si no de colocar
mas luces de relleno que resalten o sugieran mas detalles en la imagen, por
ejemplo una luz azul reflejada sobre la pared de la derecha de la imagen
quedaria bien, de donde viene esa luz? puede ser un neon que no se ve en la
escena, o una sirena de la poli... o simplemente no tiene porque tener un
origen concreto.

Lo mismo se puede hacer con otras luces aqui y alla salpicadas por la
escena, alguna luz de relleno amarilla al fondo, una fila de farolas vista
en la distancia... la idea es hacer la imagen mas dinamica sin necesidad de
aumentar tanto las luces existentes que la imagen pierda realismo.

Un saludo paisano.


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From: kike
Subject: Re: Atrapado (Trapped) lighter version
Date: 19 Jul 2007 03:55:02
Message: <web.469f182b2a765766be7bfb550@news.povray.org>
Yes, I'm thinking of that. In particular I would like to make the poster in
the bus stop a HDRI as if there were a neon behind it. And some other
things like that.

(moreless the same mssge in spanish)


particular estaba pensando hacer que el anuncio de la parada de autobus
fuera un HDRI usando megapov. El efecto debe ser genial. Y no se si alguna
otra cosa...

un abrazo


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From: "Jérôme M. Berger"
Subject: Re: Atrapado (Trapped) lighter version
Date: 19 Jul 2007 13:50:09
Message: <469fa451@news.povray.org>
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kike wrote:
> Yes, I'm thinking of that. In particular I would like to make the poster in
> the bus stop a HDRI as if there were a neon behind it. And some other
> things like that.
> 
	You don't need a HDRI for that! A standard image with high ambient
will do as well...

		Jerome
- --
+------------------------- Jerome M. BERGER ---------------------+
|    mailto:jeb### [at] freefr      | ICQ:    238062172            |
|    http://jeberger.free.fr/     | Jabber: jeb### [at] jabberfr   |
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From: kike
Subject: Re: Atrapado (Trapped) lighter version
Date: 20 Jul 2007 04:30:01
Message: <web.46a071f32a765766be7bfb550@news.povray.org>
>  You don't need a HDRI for that! A standard image with high ambient
> will do as well...
>

But will a high ambient illuminate the environment???? as far as I know it
will only make the image lighter but it will not illuminate the
environment, isnt it?


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From: Alain
Subject: Re: Atrapado (Trapped) lighter version
Date: 20 Jul 2007 06:03:43
Message: <46a0887f@news.povray.org>
kike nous apporta ses lumieres en ce 2007/07/20 04:27:
>>  You don't need a HDRI for that! A standard image with high ambient
>> will do as well...
>>
> 
> But will a high ambient illuminate the environment???? as far as I know it
> will only make the image lighter but it will not illuminate the
> environment, isnt it?
> 
It will illuminate the environment in a radiosity scene. It will not in a 
regular scene, nether will an HDRI.

-- 
Alain
-------------------------------------------------
You know you've been raytracing too long when a co-worker nearly kills himself 
over losing an hour's worth of work after a computer crash, and you just calmly 
shrug your shoulders and say, "Is that all?"
Taps a.k.a. Tapio Vocadlo


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From: "Jérôme M. Berger"
Subject: Re: Atrapado (Trapped) lighter version
Date: 20 Jul 2007 12:54:42
Message: <46a0e8d2$1@news.povray.org>
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kike wrote:
>>  You don't need a HDRI for that! A standard image with high ambient
>> will do as well...
>>
> 
> But will a high ambient illuminate the environment???? as far as I know it
> will only make the image lighter but it will not illuminate the
> environment, isnt it?
> 
	Like Alain said, high ambient and HDRI only illuminate the scene
when using radiosity. In fact, when using an HDRI, you also need a
high ambient! The only difference is that an HDRI image has more
range, and therefore more precision between its brightest and
darkest points. This is useful for real-life pictures which have
naturally a very high dynamic range, but it is overkill in your case
since a poster in a bus stop has a low intrinsic dynamic range anyway.

		Jerome
- --
+------------------------- Jerome M. BERGER ---------------------+
|    mailto:jeb### [at] freefr      | ICQ:    238062172            |
|    http://jeberger.free.fr/     | Jabber: jeb### [at] jabberfr   |
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From: Agustin Britait Molina
Subject: Re: Atrapado (Trapped) lighter version
Date: 20 Jul 2007 19:20:02
Message: <web.46a142552a76576613fec9c50@news.povray.org>
I see the image in another monitor, in a LCD 19'' monitor the image appear
fine, good lighting.

However, in my CRT monitor 17'' the image shows too dark, all is reduced to
differences in the hardware?


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From: "Jérôme M. Berger"
Subject: Re: Atrapado (Trapped) lighter version
Date: 21 Jul 2007 03:32:26
Message: <46a1b68a$1@news.povray.org>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Agustin Britait Molina wrote:
> I see the image in another monitor, in a LCD 19'' monitor the image appear
> fine, good lighting.
> 
> However, in my CRT monitor 17'' the image shows too dark, all is reduced to
> differences in the hardware?
> 
	Yes, LCD monitors are often too bright, with a gamma curve that's
too linear. CRTs are usually much closer to the standard 2.2 gamma
value (although high end LCDs can be better than low end CRTs, ymmv).

		Jerome
- --
+------------------------- Jerome M. BERGER ---------------------+
|    mailto:jeb### [at] freefr      | ICQ:    238062172            |
|    http://jeberger.free.fr/     | Jabber: jeb### [at] jabberfr   |
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