Wasn't it Maik Schmidt who wrote:
>Hi.
>
>I've just finished programming my macro for a SF container. I use it 
>within a story of mine and just wanted to see how it looks in 3D.
>
>Now that I have it, I can place containers in different sizes very well 
>but I wonder WHY exactly a render in 512x384 is so slow. It takes my 
>900MHz Thunderbird about 6 Minutes to finish. Most of the provided 
>povray examples which look quite complex are rendering really much faster!
>
>Perhaps someone can take a look at my code and tell my either where or 
>why it is slow and if it can be speed up?
>
>You should be able to download the code from:
>http://home.t-online.de/home/callan/container.zip (10kB)

My "Holes Tutorial" will explain why objects that contain lots of holes
can often be slow, and may suggest some techniques that you might try to
speed it up.

<http://www.econym.demon.co.uk/holetut/index.htm>

-- 
Mike Williams
Gentleman of Leisure

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