Mike Raiford <mra### [at] hotmailcom> wrote:
> Oh, nice, they actually simulate aperture opening shape in the focal blur.


This can be done in POV-Ray too... albeit the long way around.  If you think
about it, all you have to do is use the POV-Ray focal blur with a square
aperture, and add in a physical aperture.  Not a good solution to the problem,
but it does work...  Probably wouldn't be hard to patch into POV-Ray:

Pseudocode:

pick_random_point();
while (point_outside_aperture_shape)
     pick_a_new_point();


Works pretty well, but it didn't get much reaction so I didn't pursue it:

http://news.povray.org/povray.binaries.images/thread/%3Cweb.4299dcdc20345e88e702b90a0%40news.povray.org%3E/?ttop=264259
&toff=1950

 - Ricky

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