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I wanted to use a panoramic image mapped to a sphere to light a scene using
just radiosity. I ended up using 6 Terragen images mapped to a cube as the
environment. I had to use a recursion of at least 3 for the radiosity to
light the scene as expected - otherwise things were almost black. Lastly, I
placed a light to correspond with the sun's position, so as to cast shadows
(hence the 'sort of' in the subject line - not totally rad lit)
Looks quite good I think.
Andy Cocker
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Attachments:
Download 'Cubic Sky.jpg' (19 KB)
Preview of image 'Cubic Sky.jpg'
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Wow, will there be a bigger version for my wallpaper?
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Well, I'm not planning on rendering one (starting the next project already
:-)), and as my code is a mess and uses many image files, I can't really
post the code... sorry. But thanks for the comments.. I'm glad you like it.
All the best,
Andy Cocker
"Artis" <art### [at] aaa apollolv> wrote in message
news:3ccafa05@news.povray.org...
> Wow, will there be a bigger version for my wallpaper?
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On Sat, 27 Apr 2002 20:13:49 +0100, "Andrew Cocker"
<big### [at] mariner9fsnetcouk> wrote:
>I had to use a recursion of at least 3 for the radiosity to
>light the scene as expected - otherwise things were almost black.
RC2 has a bug that radiosity recursion level is off by -2. Will be
fixed in next beta IIRC what was said on the groups.
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG e-mail : pet### [at] tagpovrayorg
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"Peter Popov" <pet### [at] vipbg> wrote in message
news:731mcuskenaitt0agn6dj2665opbd82qce@4ax.com...
> RC2 has a bug that radiosity recursion level is off by -2. Will be
> fixed in next beta IIRC what was said on the groups.
Thanks for the info Peter, I suspected something wasn't working as it
should, but as usual put the culprit down to user error ;-)
All the best,
Andy Cocker
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From: Jaime Vives Piqueres
Subject: Re: Image Based Lighting (Sort of)
Date: 28 Apr 2002 05:52:54
Message: <3ccbc675@news.povray.org>
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Andrew Cocker wrote:
> I wanted to use a panoramic image mapped to a sphere to light a scene
> using just radiosity. I ended up using 6 Terragen images mapped to a cube
> as the environment. I had to use a recursion of at least 3 for the
> radiosity to light the scene as expected - otherwise things were almost
> black. Lastly, I placed a light to correspond with the sun's position, so
> as to cast shadows (hence the 'sort of' in the subject line - not totally
> rad lit)
>
> Looks quite good I think.
Me too. It has a very nice "daylight" feel...
--
Jaime Vives Piqueres
La Persistencia de la Ignorancia
http://www.ignorancia.org
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Very game like. I like it a lot.
-Shay
"Andrew Cocker" <big### [at] mariner9fsnetcouk> wrote in message
news:3ccaf876@news.povray.org...
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On Sat, 27 Apr 2002 23:06:03 +0300, Peter Popov <pet### [at] vipbg> wrote:
> RC2 has a bug that radiosity recursion level is off by -2.
IIRC it was RC1 and was fixed for RC2.
ABX
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On Sat, 27 Apr 2002 20:13:49 +0100, Andrew Cocker wrote:
> Looks quite good I think.
Looks like a label for POV-Spring mineral water:-)
--
#local i=.1;#local I=(i/i)/i;#local l=(i+i)/i;#local ll=(I/i)/l;box{<-ll,
-((I/I)+l),-ll><ll,-l,ll>pigment{checker scale l}finish{ambient((I/l)/I)+
(l/I)}}sphere{<i-i,l-l,(I/l)>l/l pigment{rgb((I/l)/I)}finish{reflection((
I/l)/I)-(l/I)specular(I/l)/I}}light_source{<I-l,I+I,(I-l)/l>l/l} // Steve
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news:dlrpcu4s6s72uj7f5cpspfgjjb3fpol1ba@4ax.com...
> On Sat, 27 Apr 2002 23:06:03 +0300, Peter Popov <pet### [at] vipbg> wrote:
> > RC2 has a bug that radiosity recursion level is off by -2.
>
> IIRC it was RC1 and was fixed for RC2.
>
Hope so - or the universe has just taken a left-turn into bizarro land (getting
a nice image with recursion level 1 and no lights)
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