"Warp" <war### [at] tagpovrayorg> wrote in message news:3b97608e@news.povray.org...
>   The question to which the answer is responding is not "which should I use,
> union or merge?", but it's about the *speed* of different CSG operations.

Okay. So its the right answer to the wrong question.... The implication is that
the two methods will produce identical results. The only time that this is true
(non-trans. surfaces), union is invariably faster. For all other uses, you may
as well ask, "Which is more useful? Chalk or cheese?"

Contentious Tom...

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