POV-Ray : Newsgroups : povray.general : Red is Black Server Time
4 Aug 2024 16:15:32 EDT (-0400)
  Red is Black (Message 1 to 3 of 3)  
From: Dick Conley
Subject: Red is Black
Date: 9 Apr 2003 18:40:25
Message: <3e94a159$1@news.povray.org>
When rendering a transparent object using the following:
rgbf<1.0, 0.0, 0.0, 1.0>
 reflection { 0.17, 1.0 fresnel on  }
conserve_energy
with NO dispersion, I get a black image.
Change the color to rgbf<0.0, 1.0, 0.0, 1.0> and I get a bright green image.
Change the color to rgbf<0.0, 0.0, 1.0, 1.0> and I get a bright blue image.
Any value of red only produces a black image.
A red value with a green and/or blue value seems to work fine.
Is this part of the problem I reported on Jan. 19, 2003 or is this something
different?
Dick Conley
dic### [at] localaccesscom


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From: Christopher James Huff
Subject: Re: Red is Black
Date: 9 Apr 2003 18:49:00
Message: <cjameshuff-FC40B1.18480109042003@netplex.aussie.org>
In article <3e94a159$1@news.povray.org>,
 "Dick Conley" <dic### [at] localaccesscom> wrote:

> When rendering a transparent object using the following:
> rgbf<1.0, 0.0, 0.0, 1.0>
>  reflection { 0.17, 1.0 fresnel on  }
> conserve_energy
> with NO dispersion, I get a black image.
> Change the color to rgbf<0.0, 1.0, 0.0, 1.0> and I get a bright green image.
> Change the color to rgbf<0.0, 0.0, 1.0, 1.0> and I get a bright blue image.
> Any value of red only produces a black image.
> A red value with a green and/or blue value seems to work fine.

What are the surroundings? You did not give enough information to guess 
what the image should look like.


> Is this part of the problem I reported on Jan. 19, 2003 or is this something
> different?

It seems extremely unlikely.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/


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From: Dick Conley
Subject: Re: Red is Black
Date: 10 Apr 2003 19:01:17
Message: <3e95f7bd$1@news.povray.org>
"Christopher James Huff" <cja### [at] earthlinknet> wrote in message
news:cja### [at] netplexaussieorg...
>
> What are the surroundings? You did not give enough information to guess
> what the image should look like.
>

I posted a scene at povray.text.scene-files under the subject Red is Black.

Thank you,
Dick Conley
dic### [at] localaccesscom


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