POV-Ray : Newsgroups : povray.binaries.images : welcome euro [93.5kb] Server Time
19 Nov 2024 07:38:32 EST (-0500)
  welcome euro [93.5kb] (Message 1 to 4 of 4)  
From: marabou
Subject: welcome euro [93.5kb]
Date: 6 Jan 2002 08:34:02
Message: <3c385233@news.povray.org>
the headline is only a joke. 
this scene should show balls coming from the net which was hanging on the 
ceiling some seconds ago. it is a test for vlength(). i would know how to 
make the spotlights brighter. till now i tried to modify values for 
fade_distance, with no really good results.


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From: Ari-Matti Leppanen
Subject: Re: welcome euro [93.5kb]
Date: 6 Jan 2002 12:19:07
Message: <3c38870b$1@news.povray.org>
"marabou" <agu### [at] igimixnet> wrote in message
news:3c385233@news.povray.org...

> i would know how to make the spotlights brighter. till now i tried to
> modify values for fade_distance, with no really good results.
I use lights like:

#declare Pos = <10, 10, -10>
#declare Amplitude = 15;
#declare Size1 = 2;
#declare Size2 = 3;

light_source { Pos
  <1,1,1> * Amplitude
  area_light Size1 Size2, 4, 4
  fade_power 2
  fade_distance sqrt(Size1*Size2)
}

and control the brightness with the Amplitude. This seems to be a common way
to do it.

Ari-Matti


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From: marabou
Subject: Re: welcome euro [93.5kb]
Date: 6 Jan 2002 13:18:08
Message: <3c3894e0@news.povray.org>
Ari-Matti Leppanen wrote:

>
> I use lights like:
> 
> #declare Pos = <10, 10, -10>
> #declare Amplitude = 15;
> #declare Size1 = 2;
> #declare Size2 = 3;
> 
> light_source { Pos
>   <1,1,1> * Amplitude
>   area_light Size1 Size2, 4, 4
am i right if this would mean:
area_light <2,2,2>, <3,3,3>, 4, 4 ?
>   fade_power 2
>   fade_distance sqrt(Size1*Size2)
> }
> 
> and control the brightness with the Amplitude. This seems to be a common
> way to do it.
it is a really common way.


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From: Ari-Matti Leppanen
Subject: Re: welcome euro [93.5kb]
Date: 6 Jan 2002 17:14:22
Message: <3c38cc3e@news.povray.org>
"marabou" <agu### [at] igimixnet> wrote in message
news:3c3894e0@news.povray.org...
> Ari-Matti Leppanen wrote:
>
> am i right if this would mean:
> area_light <2,2,2>, <3,3,3>, 4, 4 ?
Yes and that would be a funny thing to do..
area_light x*Size1, y*Size2, 4, 4 sounds better.

Ari-Matti


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