POV-Ray : Newsgroups : povray.general : media interaction Server Time
4 Aug 2024 16:07:41 EDT (-0400)
  media interaction (Message 11 to 13 of 13)  
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From: Christopher James Huff
Subject: Re: media interaction
Date: 10 May 2003 22:08:29
Message: <cjameshuff-4F085C.22083210052003@netplex.aussie.org>
In article <3EB### [at] xithnet>, Eleven <pov### [at] xithnet> wrote:

> Cool, I got the light beams workin'. Thanks :) What exactly does 
> "media_interaction off" do, then? Does it only apply to scattering effects?

It makes the light not illuminate media and not get attenuated by 
passing through media...media becomes shadowless to it. Scattering media 
is the only media that can reflect light, and both scattering and 
absorbing media can block light.


> And since it comes up, how exactly does one design a density pattern? 
> The documentation doesn't seem very clear on it.

Your question isn't very clear. Are you having a specific problem?
Mainly it is just trial and error, experience, and progressive 
refinement. Start with something simple and build on it.

-- 
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: Eleven
Subject: Re: media interaction
Date: 11 May 2003 06:46:25
Message: <3EBE2A01.7050601@xith.net>
Christopher James Huff wrote:

>>And since it comes up, how exactly does one design a density pattern? 
>>The documentation doesn't seem very clear on it.
> 
> 
> Your question isn't very clear. Are you having a specific problem?
> Mainly it is just trial and error, experience, and progressive 
> refinement. Start with something simple and build on it.

Not a specific problem, except that I'm not sure where to begin. :P I 
can't tell from the documentation exactly what the basics are. Do you 
have to use combinations of the predefined density patterns (dents, 
cells, bumps, etc.) or can they somehow be user defined?

-M.C. ArZeCh


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From: Christopher James Huff
Subject: Re: media interaction
Date: 11 May 2003 21:07:15
Message: <cjameshuff-8E9E18.21072511052003@netplex.aussie.org>
In article <3EB### [at] xithnet>, Eleven <pov### [at] xithnet> wrote:

> Not a specific problem, except that I'm not sure where to begin. :P I 
> can't tell from the documentation exactly what the basics are. Do you 
> have to use combinations of the predefined density patterns (dents, 
> cells, bumps, etc.) or can they somehow be user defined?

Well, you can use just the built in patterns, or you can define your own 
with functions. Or you can combine them...this gives you the most power 
and flexibility. Where you begin depends on what you are trying to do. 
You don't try to get a perfect result the first time, just try to get 
something that resembles it and build on that.

-- 
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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