"clipka" <nomail@nomail> wrote:

> The reason that a smaller looks_like object speeds things up may be related to
> the way POV does bounding box tests (didn't look at this, but e.g. POV might
> first test whether a ray starts outside the box and faces away from it, before
> testing whether and where it might actually intersect the faces of the box).

Though I'm still a bit perplexed as to why it happens with an area_light's
looks_like object, but not with a point_light's. Perhaps that's indicated in
your explanation; I'll have to re-read it.

> From what I see in the 3.7 beta code, these issues have been addressed, by
> building the no_shadow and similar filters into the core functions that
> actually do the bounding box and intersection tests.

That's good news!  (I'm rather...shy...about running betas. Have you run my test
scene with the lastest one? I'm curious to know how it performs. You never
know... ;-)   Thanks for taking the time to go through this problem. And thanks
to the POV team for the good changes!

Ken W.

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