Alain <ele### [at] netscapenet> wrote:
> How many objects in the first set of frames? Is it less than the bounding threshold?
> If the answer the second question is YES, then there will be NO bounding at all
> for the entire animation.
> A solution: add 1 or 2 dumy objects, like small sphere with no_image, no_shadow
> and no_reflection or objects placed off field: behind the camera or
> behind/inside some opaque object.
> Others have been hit with that problem in animation with a growing number of
> objects: 0 to 2 objects in the first frame and eventualy 1000s in subsequent frames.

That's interesting but doesn't fit with my experiences...  I made a simple
system for doing "distributed" animation rendering where basically each
machine or instance of POV-Ray renders an empty frame if a flag-file has
been produced by another machine on a shared drive.  Anyway, I haven't seen
or at least I haven't noticed a slow-up for starting with empty frames.
Also see my results I posted for a variation of Greg's sample. Slow up
occurs on late frames but only after a period of empties, even if the early
frames aren't empty.   I guess I replied in the wrong place, but here's
where it's at:

http://news.povray.org/povray.text.scene-files/message/%3Cweb.45ca98cae9bbeb3a632e613b0%40news.povray.org%3E/#%3Cweb.45
ca98cae9bbeb3a632e613b0%40news.povray.org%3E

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