In article <MPG### [at] NEWSPOVRAYORG>, Sander 
<san### [at] stolscom> wrote:

> Question and radiosity setting in p.n.; here (part of) the image that 
> has unexpected spots on the ceiling next to the 'lamp'.
> The lamp is a light_source color 0 looks_like{sphere}.
> the ceiling is lit by a spotlight pointing straight upwards.

Do you have any extremely bright things in your scene? Glow effects, or 
objects with a high ambient? I think I've seen this before, when a 
couple samples hit a small, extremely bright area, and throw off the 
calculations of the point being sampled.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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