Thorsten Froehlich wrote:
> There is a reason why these are warnings. User bounding for other objects -
> most primitives like spheres - is not as efficient as the automatic bounding
> and would cause a slow down. For unions (and a few other ones) this of
> course doesn't always apply.
>
> Thorsten
Not quite: the automatic bounding is supposed to be more efficient for
unions too, hence the warning (you'll notice that if you try with a
difference or intersection, you won't get the warning...). But I always
get my most significant bounding speedups with unions...
Jerome
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