"Zeger Knaepen" <zeg### [at] povplacecom> wrote:
> > You can even tell the difference
> > without the strong highlights which makes me wonder why the default is a
> > square
> > aperture.
>
> I suppose it's faster to calculate a random location inside a square than a
> random location inside a circle.  Might not be much of a difference for 1 pixel
> and 1 sample, but it could add up to a lot for 1024x786 pixels and 10 samples
> per pixel.

Well that's the interesting part.  It seems to use something like a grid with
jitter, but it's all precalculated before the render.  So it doesn't matter
what shape you choose - as best as I can tell, it's just a list of points when
rendering.

 - Ricky

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