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Something I was going to ask last week and never got round to for some
reason :).
I have two hollow boxes an 'air' and a 'water' with the air sitting just
above the water I fill each with a different media and shine a parallel
light beam through a slit to pass through both, media interaction is on
and I see a beam of light shining through both boxes. Set ior for the
water and the beam through the water vanishes.
Does this mean what I think it means and that I'm going to have to rebuild
the scene using photons to see a diffracted beam through the water?
--
Phil
--
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Phil Cook nous apporta ses lumieres ainsi en ce 2004/04/14 12:26... :
> Something I was going to ask last week and never got round to for some
> reason :).
>
> I have two hollow boxes an 'air' and a 'water' with the air sitting
> just above the water I fill each with a different media and shine a
> parallel light beam through a slit to pass through both, media
> interaction is on and I see a beam of light shining through both
> boxes. Set ior for the water and the beam through the water vanishes.
>
> Does this mean what I think it means and that I'm going to have to
> rebuild the scene using photons to see a diffracted beam through the
> water?
>
> --
> Phil
>
Probably. Then, if you add some dispertion, you can get realistic colour
spread.
You may try the caustic option, but it may not display the beam path
properly.
Alain
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On Wed, 14 Apr 2004 21:43:42 -0400, Alain <aze### [at] qwerty gov> wrote:
> Phil Cook nous apporta ses lumieres ainsi en ce 2004/04/14 12:26... :
>
>> Something I was going to ask last week and never got round to for some
>> reason :).
>>
>> I have two hollow boxes an 'air' and a 'water' with the air sitting
>> just above the water I fill each with a different media and shine a
>> parallel light beam through a slit to pass through both, media
>> interaction is on and I see a beam of light shining through both boxes.
>> Set ior for the water and the beam through the water vanishes.
>>
>> Does this mean what I think it means and that I'm going to have to
>> rebuild the scene using photons to see a diffracted beam through the
>> water?
>>
>> -- Phil
>>
> Probably. Then, if you add some dispertion, you can get realistic colour
> spread.
> You may try the caustic option, but it may not display the beam path
> properly.
>
> Alain
Thanks thought I might have to, means some more tweaking of media;
fortunately my light_source is already outside the media container so I
won't have to mess with that and I'd added a basic photon setup when I was
trying to determine how photons worked with IMBJR. Just rendering now,
left ior 1.33 in the water block no dispersion and... no beam and some
nasty blotchy patches from the media that have just appeared. Oh well more
tweaking :)
--
Phil Cook
--
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