"clipka" <nomail@nomail> wrote:
> "clipka" <nomail@nomail> wrote:
> > "Kenneth" <kdw### [at] earthlinknet> wrote:
> > > Clipka mentioned in a recent post that bounding in 3.7 has been re-worked;
> >
> > Never did. So that was either someone else, or a misunderstanding.
>
> Hm... well, maybe did after all, I guess... in conjunction with area lights.

Area lights! The Cabal scene had 25 area_lights.

As an experiment, I removed a few elements from the scene to see if I could
isolate the cause of the speedup.

Here are the render times in seconds (does not include parsing time):
(hope this table formats properly)
                                         v3.6    v3.7   speedup
basic scene                               130      36     3.6X
basic scene + radiosity                  1014     127     8.0X
basic scene + area lights                3121     181    17.2X
basic scene + area lights + radiosity    3401     255    13.3X

Radiosity and area lights appear to be much faster on v3.7, faster than just the
multicore speedup. I suspect the algorithm and/or compiler have generated much
more efficient code in v3.7.

Cheers,

Rob.

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