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I was just trying out the PovRay tutorial and I rendered the very first
scene before adding the light. To my amazement, the sphere is visible
(although very dark yellow). If this is not a POVRAY error it seems to
contradict my basic understanding of how raytracing works. How I can see
ANYTHING if there is no light source in the scene???
#include "colors.inc" // The include files contain
#include "stones.inc" // pre-defined scene elements
camera {
location <0, 2, -3>
look_at <0, 1, 2>
}
sphere {
<0, 1, 2>, 2
texture {
pigment { color Yellow }
}
}
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From: Jaime Vives Piqueres
Subject: Re: Object visible with no light???
Date: 31 Aug 2002 10:09:59
Message: <3d70ce37@news.povray.org>
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Frantisek Fuka wrote:
> I was just trying out the PovRay tutorial and I rendered the very first
> scene before adding the light. To my amazement, the sphere is visible
> (although very dark yellow). If this is not a POVRAY error it seems to
> contradict my basic understanding of how raytracing works. How I can see
> ANYTHING if there is no light source in the scene???
:) ...look for "ambient" and "ambient_light" at the syntax reference.
--
Jaime Vives Piqueres
La Persistencia de la Ignorancia
http://www.ignorancia.org
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If I've known that before can I put the
"certified POV-Ray Class 1 User" on my signature ? :-))
--Theo
PS: Everyone has a certificate, from Microsoft, from Novel or checkpoint i
should order one from POV-Ray. :-) It simply makes good in the signature ...
----------------------------------------------------------------------------
Distributed Network-Rendering auf bis zu 600 PC's mit SMPOV und POV-Ray 3.5
Download ab sofort bei http://www.it-berater.org/smpov.htm
"Frantisek Fuka" <fuk### [at] fuxoft cz> schrieb im Newsbeitrag
news:3d70ca68@news.povray.org...
> I was just trying out the PovRay tutorial and I rendered the very first
> scene before adding the light. To my amazement, the sphere is visible
> (although very dark yellow). If this is not a POVRAY error it seems to
> contradict my basic understanding of how raytracing works. How I can see
> ANYTHING if there is no light source in the scene???
>
> #include "colors.inc" // The include files contain
> #include "stones.inc" // pre-defined scene elements
>
> camera {
> location <0, 2, -3>
> look_at <0, 1, 2>
> }
>
> sphere {
> <0, 1, 2>, 2
> texture {
> pigment { color Yellow }
> }
> }
>
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From: Christoph Hormann
Subject: Re: Object visible with no light???
Date: 1 Sep 2002 14:05:05
Message: <3D7256D1.9AED63F@gmx.de>
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Theo Gottwald * wrote:
>
> If I've known that before can I put the
> "certified POV-Ray Class 1 User" on my signature ? :-))
> [...]
Bah, for that you need to achieve more than 35 points in:
Subject: The Harcore Povrayer Test
Date: 31 Jan 2002 11:58:22 -0500
From: Warp <war### [at] tag povray org>
Newsgroups: povray.advanced-users
news://news.povray.org/3c5977ae%40news.povray.org
Christoph
--
POV-Ray tutorials, IsoWood include,
TransSkin and more: http://www.tu-bs.de/~y0013390/
Last updated 13 Aug. 2002 _____./\/^>_*_<^\/\.______
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