in news:web.40907f86eb41d4117223836a0@news.povray.org erona wrote:

> Some of the results produce weird
> lights.
> 
> http://gallery.cybertarp.com/albums/userpics/13594/DIALux.jpg
> 

The light spots are a result of the radiosity calculation. I'm not sure 
what causes it exactly, but I noticed it happens when you have an object 
with a high ambient finish close to a "wall". 

The colourfull background in this old post is based on that effect:

Newsgroups: povray.binaries.images
Subject: Them radiant little devils ....       [~67KB]
Message-ID: <Xns### [at] povrayorg>
Date: 24 Mar 2001 05:04:08 -0500
Xref: news.povray.org povray.binaries.images:48211

http://news.povray.org/Xns906E70D695CF9seed7@povray.org

Ingo

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