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I just noticed that "filter" does not work properly with (multi-layered)
sky spheres.
When using "transmit" in the pigments of a multi-layered sky_sphere,
they behave exactly like layered textures with the corresponding
pigments, i.e. the following look virtually identical:
(A)
sky_sphere {
pigment { Sky_Pigment_1 }
pigment { Sky_Pigment_2 }
pigment { Sky_Pigment_3 }
}
(B)
sphere { 0, 1
texture { pigment { Sky_Pigment_1 } finish { ambient 1 diffuse 0
specular 0 } }
texture { pigment { Sky_Pigment_2 } finish { ambient 1 diffuse 0
specular 0 } }
texture { pigment { Sky_Pigment_3 } finish { ambient 1 diffuse 0
specular 0 } }
scale 10000
no_shadow
}
However, when using "filter" instead, the layered-texture sphere's look
changes significantly (as expected), while the sky_sphere still looks as
if "transmit" had been used (unless the background can be seen through,
but in that case it still looks different from the layered-texture sphere).
As with many errors I reported here recently, this one appears to have
been around ever since, so a change would affect existing scenes.
I'd advocate to change it nonetheless (or make it depend on the #version
statement), to give the same results as the layered-texture sphere.
Comments, anyone?
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From: Thomas de Groot
Subject: Re: Filter does not work properly in sky sphere
Date: 8 May 2010 03:18:50
Message: <4be5105a$1@news.povray.org>
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"clipka" <ano### [at] anonymous org> schreef in bericht
news:4be4217b$1@news.povray.org...
> I'd advocate to change it nonetheless (or make it depend on the #version
> statement), to give the same results as the layered-texture sphere.
>
> Comments, anyone?
Good spotting!
Change it yes, but make it #version dependant, I would say.
Thomas
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"Thomas de Groot" <tDOTdegroot@interDOTnlANOTHERDOTnet> wrote:
> Good spotting!
>
> Change it yes, but make it #version dependant, I would say.
Agreed. (I never noticed this before--but then, I hardly ever apply multiple
pigments to a sky_sphere, let alone with 'filter.') So *many* possibilities, so
little time...
BTW, I just successfully changed my POV-Ray email address, the one I log-in
with. Yippee! (Although, this post is still showing my old one. Hmm, looks like
I need to change something else somewhere...)
Ken
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When it's repaired, it will probably also solve the problem I had mentionned
with the background vs skysphere alpha color handling I had reported here:
http://news.povray.org/povray.beta-test/thread/%3Cweb.4b92a5b2a915a27a1408b2c10%40news.povray.org%3E/?mtop=342575&moff=
10
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Am 16.05.2010 22:28, schrieb Mr:
> When it's repaired, it will probably also solve the problem I had mentionned
> with the background vs skysphere alpha color handling I had reported here:
>
>
http://news.povray.org/povray.beta-test/thread/%3Cweb.4b92a5b2a915a27a1408b2c10%40news.povray.org%3E/?mtop=342575&moff=
> 10
No, not really - this particular issue I observed doesn't seem to have
anything to do with that blender problem you reported back then.
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