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Fabien Mosen wrote:
>
> Also, please note it doesn't even take *textures* in account (for the
> same reason), only a plain diffuse color. Finally, it doesn't render
> bumps, but that's another issue.
So this is why those Lightscape entrys look cartoony!
_____________
Kari Kivisalo
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From: Fabien Mosen
Subject: Re: Radiosity champions, here's something for you !
Date: 16 Dec 2001 14:26:58
Message: <3C1CF4BE.1000608@skynet.be>
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Ari-Matti Leppanen wrote:
> The documentations says: 6.11.11.1 "..provides a way to replace the last
> term - the constant ambient light value - with a light level which is based
> on what surfaces are nearby..".
Which is the basic principle of any radiance engine.
> By that I would say that reflections don't affect the result so it's *not
> really* equivalent.
It does. POV-Ray takes reflection of surfaces into account when taking
radiance samples. I've done a test scene to check that. IMO, we
should, at least, have an option to disable it.
Fabien.
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From: Fabien Mosen
Subject: Re: Radiosity champions, here's something for you !
Date: 16 Dec 2001 14:29:14
Message: <3C1CF546.7070308@skynet.be>
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Kari Kivisalo wrote:
> So this is why those Lightscape entrys look cartoony!
Yep ! The engine is pretty incomplete, texture-wise. No bumps, not
even slightly complex procedural texturing.
However, on has to admit the obvious quality of light in these images.
Fabien.
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Dynamic range compression test with half resolution
image and radiosity solution that fits in 256MB RAM.
Sun position from the sunpos macro. I used count 1200
and it seems it's not enough. The noise may also result
from my poor choice of clipping intensity.
http://www.pp.htv.fi/kkivisal/church2.jpg
_____________
Kari Kivisalo
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From: Jaime Vives Piqueres
Subject: Re: Radiosity champions, here's something for you !
Date: 18 Dec 2001 07:40:57
Message: <3c1f3959@news.povray.org>
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Kari Kivisalo wrote:
> http://www.pp.htv.fi/kkivisal/church2.jpg
:O Even at half resolution, it's the most artistic and realistic of all.
Light is almost perfect for me.
--
Jaime Vives Piqueres
La Persistencia de la Ignorancia
http://www.ignorancia.org
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From: Christoph Hormann
Subject: Re: Radiosity champions, here's something for you !
Date: 18 Dec 2001 07:59:56
Message: <3C1F3DCC.FA708197@gmx.de>
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Kari Kivisalo wrote:
>
> Dynamic range compression test with half resolution
> image and radiosity solution that fits in 256MB RAM.
> Sun position from the sunpos macro. I used count 1200
> and it seems it's not enough. The noise may also result
> from my poor choice of clipping intensity.
>
> http://www.pp.htv.fi/kkivisal/church2.jpg
>
Looks good from what you can see at that size. I think you should try to
render it in full size with slightly weaker radiosity settings if
necessary.
Christoph
--
Christoph Hormann <chr### [at] gmx de>
IsoWood include, radiosity tutorial, TransSkin and other
things on: http://www.schunter.etc.tu-bs.de/~chris/
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From: Tony[B]
Subject: Re: Radiosity champions, here's something for you !
Date: 18 Dec 2001 09:11:24
Message: <3c1f4e8c@news.povray.org>
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Oh, wow... This is definitely the best so far.
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From: Ari-Matti Leppanen
Subject: Re: Radiosity champions, here's something for you !
Date: 18 Dec 2001 09:31:55
Message: <3c1f535b$1@news.povray.org>
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"Kari Kivisalo" <ray### [at] engineercom> wrote in message
news:3C1F34F2.2961A5C5@engineer.com...
> Dynamic range compression test with half resolution
> image and radiosity solution that fits in 256MB RAM.
> Sun position from the sunpos macro. I used count 1200
> and it seems it's not enough. The noise may also result
> from my poor choice of clipping intensity.
Looking good.. what was the trace time? The quality suggests that a full
size might take ages. See you made the same mistake with the SunPos as I
did. The scene looks better that way but:
// Lstm: Meridian of your local timezone (+1 hour = +15 deg)
// in degrees (east = positive, west = negative)
so I guess Lstm should be +15 not +1. Hope you haven't started a new trace
yet. Somehow after 13,5h I don't want to re-start anymore.
Ari-Matti
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>
> Dynamic range compression test with half resolution
> image and radiosity solution that fits in 256MB RAM.
> Sun position from the sunpos macro. I used count 1200
> and it seems it's not enough. The noise may also result
> from my poor choice of clipping intensity.
That's impressive. The light quality is, by far, the best I have
seen amongst every other rendering of that church (including
lightscape, mental ray, etc...).
I hope the final rendering will do justice to it.
I hope that this dynamic range stuff will be implemented in POV-Ray
someday.
Fabien.
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From: Gilles Tran
Subject: Re: Radiosity champions, here's something for you !
Date: 18 Dec 2001 10:25:06
Message: <3c1f5fd2$1@news.povray.org>
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3C1F34F2.2961A5C5@engineer.com...
>
> Dynamic range compression test with half resolution
> image and radiosity solution that fits in 256MB RAM.
> Sun position from the sunpos macro. I used count 1200
> and it seems it's not enough. The noise may also result
> from my poor choice of clipping intensity.
>
> http://www.pp.htv.fi/kkivisal/church2.jpg
>
--
Certainly the best so far... It certainly helps a lot knowing about lighting
like you do. I'm wondering about the light position, though, as the sun
seems lower in your image than in the other ones. I've been using these
parameters :
// SunPos(Year, Month, Day, Hour, Minute, Lstm, LAT, LONG)
SunPos(2001, 6, 1, 14, 0, 15, 45.44, 15.53)
How much memory is required, BTW ? Is it possible to render it in chunks, as
this can reduce greatly the necessary memory ?
G.
**********************
http://www.oyonale.com
**********************
- Graphic experiments
- POV-Ray and Poser computer images
- Posters
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