POV-Ray : Newsgroups : povray.binaries.images : Oscilloscope : Re: Oscilloscope Server Time
2 Jun 2023 01:06:45 EDT (-0400)
  Re: Oscilloscope  
From: William F Pokorny
Date: 6 Feb 2023 10:05:58
Message: <63e11756$1@news.povray.org>
On 2/6/23 09:26, Kenneth wrote:
> William F Pokorny <ano### [at] anonymousorg> wrote:
>> On the screen changes being an issue. If we change the screen's finish
>> to { emission 0 ambient 1 }, would we get the bright screen without any
>> light contribution to radiosity? I don't know...?
> Well, unfortunately (or fortunately, depending on how you look at it!), ambient
> is now completely turned off when radiosity is used, so I can't test the idea in
> v3.8. Only emission and diffuse are active.
> I also thought about the 'no_radiosity' switch for certain objects. If the
> oscilloscope screen is actually a separate object, maybe that would help?
> Honestly, I'm not completely sure I understand that feature, from the docs'
> description. But in my own test scene, I have a sky_sphere with a pigment; if I
> add 'no_radiosity' to it, that does indeed turn off any radiosity-light
> contribution from it.
Thanks for the confirmation on ambient and emission together with 

I too forgot about the no_radiosity keyword! I believe this the better 
approach to make the screen invisible to radiosity rays, but as you said 
it would need to be built in such a way all the glowing bits are 
represented as stand alone objects such that the keyword could be used.

Bill P.

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