im having a strange problem with rendering spotlights in a scene filled with
atmosphere in 3.02.
its hard to explain, so please look at
http://www.deakin.edu.au/~cafield/light.jpg if you think you can help me
out.
i've tried altering all of the variables in the atmosphere, but nothing
seems to work.

thanks, Chris.

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You didn't mention what you were looking for it to be like, brighter
beams of light I suppose though, right?
In 3.0* the atmosphere brightens when scattering is lowered typically
due to the fact that scattering also causes light to also diminish as it
increases. You could try atmospheric_attenuation off in the lights and
that might remedy it also (leave atmosphere on). I'm quickly forgetting
how POV 3.02 works but this should help.

Chris Field wrote:
> 
> im having a strange problem with rendering spotlights in a scene filled with
> atmosphere in 3.02.
> its hard to explain, so please look at
> http://www.deakin.edu.au/~cafield/light.jpg if you think you can help me
> out.
> i've tried altering all of the variables in the atmosphere, but nothing
> seems to work.
> 
> thanks, Chris.

-- 
 omniVERSE: beyond the universe
  http://members.aol.com/inversez/POVring.htm
=Bob

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Sorry, looking back i didnt really make myself too clear did i?

The problem was the 'spheres' (for want of a better word) which have
appeared halfway along the beams of light...It looks like the lights are
shining on a ball which doesnt have any texture, but leaves some sort of
shadow.

I've only just discovered that there was a Povray 3.1, but i need to
complete this 'project' i'm working on, and as yet havent properly figured
out the usage of media.....

Thanks anyway, as the brightness was another problem i was trying to deal
with ;-)

Chris.

Bob Hughes wrote in message <369600F1.735134F7@aol.com>...
>You didn't mention what you were looking for it to be like, brighter
>beams of light I suppose though, right?
>In 3.0* the atmosphere brightens when scattering is lowered typically
>due to the fact that scattering also causes light to also diminish as it
>increases. You could try atmospheric_attenuation off in the lights and
>that might remedy it also (leave atmosphere on). I'm quickly forgetting
>how POV 3.02 works but this should help.
>

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Heck, I thought there was supposed to be balls in that picture!
You must be encountering a similar effect I had once. If overlapping (I
know, maybe not even overlapping) lights are in atmosphere they can
cause granular interference somehow. Seems the only remedy I had
available was to increase the samples greatly (70 I believe). I didn't
take a note down of it otherwise I'd know exactly what to tell you.

Chris Field wrote:
> 
> Sorry, looking back i didnt really make myself too clear did i?
> 
> The problem was the 'spheres' (for want of a better word) which have
> appeared halfway along the beams of light...It looks like the lights are
> shining on a ball which doesnt have any texture, but leaves some sort of
> shadow.
> 
> I've only just discovered that there was a Povray 3.1, but i need to
> complete this 'project' i'm working on, and as yet havent properly figured
> out the usage of media.....
> 
> Thanks anyway, as the brightness was another problem i was trying to deal
> with ;-)
> 
> Chris.
> 
> Bob Hughes wrote in message <369600F1.735134F7@aol.com>...
> >You didn't mention what you were looking for it to be like, brighter
> >beams of light I suppose though, right?
> >In 3.0* the atmosphere brightens when scattering is lowered typically
> >due to the fact that scattering also causes light to also diminish as it
> >increases. You could try atmospheric_attenuation off in the lights and
> >that might remedy it also (leave atmosphere on). I'm quickly forgetting
> >how POV 3.02 works but this should help.
> >

-- 
 omniVERSE: beyond the universe
  http://members.aol.com/inversez/POVring.htm
=Bob

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excellent, thanks!


Bob Hughes wrote in message <36975595.BFD1CD03@aol.com>...
>Heck, I thought there was supposed to be balls in that picture!
>You must be encountering a similar effect I had once. If overlapping (I
>know, maybe not even overlapping) lights are in atmosphere they can
>cause granular interference somehow. Seems the only remedy I had
>available was to increase the samples greatly (70 I believe). I didn't
>take a note down of it otherwise I'd know exactly what to tell you.

Post a reply to this message