In article <3ea29335@news.povray.org> , Simon Adameit 
<sim### [at] gaussschule-bsde>  wrote:

>> In short:
>
> Thanks for you detailed explanation.

Actually, I was serious that this was the short version.  In reality the
whole issue is even more complicated, and very hard to describe, let alone
predict exactly :-(

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

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