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Hej ,
i have a (maybe stupid) question that came up while playing with media.
I'm using a global media to let the light become visible. Now my
question is :
Does a PointLightSource influence a media or do I have to use a
Spotlight instead ?
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Karsten Senz <kse### [at] wi-bw tfh-wildaude> wrote:
: Does a PointLightSource influence a media or do I have to use a
: Spotlight instead ?
The only difference between a point light and a spotlight is that the
spotlight only illuminates a certain area.
A point light may illuminate too uniformly for your purposes.
--
main(i){char*_="BdsyFBThhHFBThhHFRz]NFTITQF|DJIFHQhhF";while(i=
*_++)for(;i>1;printf("%s",i-70?i&1?"[]":" ":(i=0,"\n")),i/=2);} /*- Warp. -*/
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>Does a PointLightSource influence a media or do I have to
use a
>Spotlight instead ?
It lights up the media in the same way, but the effect is
less interesting because a point light source spreads the
light in such a uniform way.
Julius Klatte
http://surf.to/jkhome
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Actually, I disagree that the effect is less interesting - it just has
different uses. With media_attenuation and/or light_attenuation you can
make streetlights, lanterns, sun etc. etc.
Margus
Julius Klatte wrote:
>
> It lights up the media in the same way, but the effect is
> less interesting because a point light source spreads the
> light in such a uniform way.
>
> Julius Klatte
> http://surf.to/jkhome
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Margus Ramst wrote:
>
> Actually, I disagree that the effect is less interesting - it just has
> different uses. With media_attenuation and/or light_attenuation you can
> make streetlights, lanterns, sun etc. etc.
I agree with Margus, I had some nice versions of a PointLight sitting in
a partly transparent texture. So you got beams heading in all directions
and with some fading they will not run out of the screen. Another effect
was a projector that has thrown an filtered Imagemap on a white wall. I
know that is possible without atmosphere too, but you can't see the
beams. It would be nice to here from anybody else who tried it, since I
still don't got it working right. I could post an image in
binaries.images if someone is interested.
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