=?UTF-8?B?SsOpcsO0bWUgTS4gQmVyZ2Vy?= <jeberger@free.fr> wrote:
> On 08/30/2015 07:38 PM, Alain wrote:
> > Ouch!
> > When you add a manual bounding to an union, that union is no longer
> > splitted. That cause it to take MUCH more time to render as each ray
> > that hit the manual bounding box now need to be tested against each and
>
> > every components of the union. It's similar in effect to uselessly usin
> g
> > merge instead of union.
> >
> > Also, as your manual bounding box is larger than the original union,
> > it's even slower.
> >
>     Have you tried it? ;) According to And, adding the manual bounding
> box decreases the render time from 2m04s to 2s...
>
>         Jerome
> --
> mailto:jeb### [at] freefr
> http://jeberger.free.fr
> Jabber: jeb### [at] jabberfr


That's true. And it's impressive.
Thanks for sharing the information.

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Cheng Han Tsai

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