Christian Froeschlin <chr### [at] chrfrde> wrote:
> Ingwer wrote:
>
> > I want to simulate the camera calibration in Povray
>
> The camera is different from a real world camera. For most
> purposes the aperture is simply a point (point camera). Very
> simple optics, in focus everywhere, and the raytracer does not
> care that almost no light would pass through in real life ;)
>
> > but I don't know exactly the value of aperture in Povray. Is it the
> > diameter (povray units) of the camera? or is it only a referenced
> > value for the depth of view?
>
> The latter. See 3.4.2.3 in the documentation (of POV-Ray 3.7).
>
> > I have also heard, that the form of the aperture in Povray is square
> > not a circle.
>
> In 3.7 there is also a bokeh keyword to set the shape.

Hello Christian,

Thanks for your help. But I indeed want to simulate a camera with a aperture
F1.8 in Povray. Do you know another way to deal with it? Which value should I
give to aperture?

best wishes
Ingwer

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