I'm not sure I follow you. Do you mean that you bounded the entire merge
object? I tried that (with the "-ur" switch), and didn't see a noticeable
change in render speed.

BTW, I posted a picture of the brick wall on p.b.i.

Regards,
Dave


news:3926B770.3CD55E5E@club-internet.fr...
> I have had this problem once.
>
> Use 'merge' instead of 'union' and manually bound it with a bounded_by
 sphere
> or box } as closely as possible.
>
> POV will consider your wall as a single block and not as thousand of
bricks.
>
> It worked when I had thousands of spheres to render. Hope it will for you
too.
>

>
>

>
> > I made a scene of a stone wall. The stones were created as individual
> > objects (a couple hundred of 'em), and the scene rendered properly in
about
> > 30 minutes at 1024x768 resolution. I decided to make a single
"BrickWall"
> > object (using a macro) that was a union of all the individual stones,
and
> > suddenly it took almost NINE HOURS to render the same scene, although it
> > looked the same! Did I do something wrong? Is there a solution to this
> > problem? I would like to keep the union so that I can easily manipulate
> > multiple stone walls in my scene.
> >
> > Regards,
> > Dave
>

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