hi,

Alain <kua### [at] videotronca> wrote:
> The actual effect of all media depend on how long is the path through
> them as well as it's density. Double the path's length and you double
> it's contribution.
> Next, ...

I'll need to print, read, and then study this reply + many of the preceding.
hoping to .. assimilate the information .. somehow.  :-)

thank you very much, and everybody who has "chipped in".

the plan now is to make a simple "pre-cursor" animation to play with the
concept, learn.  hoping to start on this in the next few days.


regards, jr.

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Le 18-06-22 à 12:23, jr a écrit :
> hi,
> 
> Alain <kua### [at] videotronca> wrote:
>> The actual effect of all media depend on how long is the path through
>> them as well as it's density. Double the path's length and you double
>> it's contribution.
>> Next, ...
> 
> I'll need to print, read, and then study this reply + many of the preceding.
> hoping to .. assimilate the information .. somehow.  :-)
> 
> thank you very much, and everybody who has "chipped in".
> 
> the plan now is to make a simple "pre-cursor" animation to play with the
> concept, learn.  hoping to start on this in the next few days.
> 
> 
> regards, jr.
> 
> 
> 

Two very simple tests :
1) Make a scene with a few boxes in an union. Use an orthographic 
camera. All boxes have the same frontal area, but are progressively 
deeper and filled with some uniform media. Apply the media to the whole 
union, not to each individual box.
The deeper the box, the more intense the media effect will be.

2) Make a scene where the box depth is controlled by the clock variable 
and render as an animation.
Use a box like this one :
box{<-1, -1, 0> <1, 1, 20*clock> pigment{rgbt 1}hollow
  interior{media{emission 0.1}}
}
Render with +kff10 on the command line.

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"jr" <cre### [at] gmailcom> wrote:
> the plan now is to make a simple "pre-cursor" animation to play with the
> concept, learn.

trying, and so far failing.  :-(

the main difference between the example code posted by WF Pokorny and mine is
(a) no enclosing sphere or box, and (b) use of emission colours other than
white.

I have also tried a variation based on the same code which attempted to
implement Alain's idea of a union with a common material, no success either.

so I'll post a zip with a wip test scene file and an ini "driver" in
p.text.scene-files; the sixth frame is where I'd hoped the hidden object would
interact with the majority of the (few sample) notes (it's all pretty crude, I'm
no artist :-)).  frames take a couple of seconds to render.

if anyone could have a look to tell me whether the approach is viable
(everything's in arrays, basically), and where I'm "missing the boat", I'd much
appreciate it.

thank you.


regards, jr.

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Check p.b.animations for movie and code

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