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1 Nov 2024 01:25:41 EDT (-0400)
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From: CAS
Subject: some problems about finish
Date: 27 Feb 2014 03:25:01
Message: <web.530ef5e92d562d916a92a3a00@news.povray.org>
I want to ask how should I set the value of ambient and diffuse ?
"pigment {color rgb spectral}" I only used the reflection of object . I do not
need to consider the ambient and diffuse ,but I want to ask whether  need I to
set the parameters of ambient and diffuse ?If need, "#default{ finish{ ambient
0.1 diffuse 0.9 }}"is OK?


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From: jhu
Subject: Re: some problems about finish
Date: 27 Feb 2014 05:05:00
Message: <web.530f0d0a99a70e2cd19b0ec40@news.povray.org>
"CAS" <sup### [at] cstnetcn> wrote:
> I want to ask how should I set the value of ambient and diffuse ?
> "pigment {color rgb spectral}" I only used the reflection of object . I do not
> need to consider the ambient and diffuse ,but I want to ask whether  need I to
> set the parameters of ambient and diffuse ?If need, "#default{ finish{ ambient
> 0.1 diffuse 0.9 }}"is OK?

It's up to you. Does your scene look fine to you?


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From: CAS
Subject: Re: some problems about finish
Date: 27 Feb 2014 06:30:00
Message: <web.530f209899a70e2c6a92a3a00@news.povray.org>
"jhu" <nomail@nomail> wrote:
> "CAS" <sup### [at] cstnetcn> wrote:
> > I want to ask how should I set the value of ambient and diffuse ?
> > "pigment {color rgb spectral}" I only used the reflection of object . I do not
> > need to consider the ambient and diffuse ,but I want to ask whether  need I to
> > set the parameters of ambient and diffuse ?If need, "#default{ finish{ ambient
> > 0.1 diffuse 0.9 }}"is OK?
>
> It's up to you. Does your scene look fine to you?

The image of output is what I needed. Then I use the histogram to statistic the
image which output by pov. However, the profile of image is shaking so intensive
between some range. What reseasons may cause this phenomenon ?


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From: Chris Cason
Subject: Re: some problems about finish
Date: 27 Feb 2014 06:56:21
Message: <530f27e5$1@news.povray.org>
On 27/02/2014 22:25, CAS wrote:
> The image of output is what I needed. Then I use the histogram to statistic the
> image which output by pov. However, the profile of image is shaking so intensive
> between some range. What reseasons may cause this phenomenon ?

It would help if you posted your scene source and the output image
that shows the problems you describe.


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