POV-Ray : Newsgroups : povray.binaries.images : Odd blur effect: squared spheres : Re: Odd blur effect: squared spheres Server Time
21 Sep 2023 22:46:09 EDT (-0400)
  Re: Odd blur effect: squared spheres  
From: Jan Walzer
Date: 27 Aug 2002 14:05:30
Message: <3d6bbf6a$1@news.povray.org>
"Slime" <slm### [at] slimelandcom>
> > AFAIK the focal blur is achieved by scattering the camera location
> > point in a rectangular area, while maintaining the focal point the
> > same. The size of this area is determined by the aperature keyword.
> Shouldn't it be a circular area for realism?
correct ...

either that or you can start modelling complex shapes for a
probability model. Meaning, you support a greyscale bitmap
where black says "no here won't get a ray shooten from" and
white means that from here will get a ray shooten with the
highest probability.

This would allow you to form flare shapes as they sometimes
appear in photography; think of hexagonal or triangular ones.

The problem would be, that it will even slower to determine
the point.

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