47fb34d6@news.povray.org...
> delle <del### [at] ciaowebit> wrote:
>> With my version you can use any IES file.
>
>  You mean that uneven lighting is not caused by artifacts but it's
> intentional and defined by the IES file?

Here's a more convincing use of IES files (done in Vray, not by me).
http://img292.imageshack.us/my.php?image=vraynbj5.jpg
The good thing with IES files is that ligthing manufacturers provide them 
for free. People who specialise in architectural visualisation can then 
light their scenes with the exact lighting data from a particular lamp 
model, compare lighting effects with each other etc.

G.


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