Thomas de Groot <tho### [at] degrootorg> wrote:

Thanks, Thomas.
I'm glad that it seems that I've mostly solved the issue - at least for all of
the use cases you've tested.
I still have a feeling that there's a bit more to be done, and somehow VCorr
_may_ be needed in there.
It's not very noticeable from far away, you need steep viewing angles to see
what I mean.

> Op 18/11/2020 om 13:16 schreef Jörg "Yadgar" Bleimann:
> > My digital cameras (even the relatively sophisticated Panasonic Lumix
> > DMC-LZ100) are no able to correct for falling lines... but perhaps this
> > macro can do that with the photos?
> >
>
> I do not see how. If you import your photograph into a povray scene,
> applying the macro will not correct the '/content/ of the photograph,
> only the scene it is part of.


Possibly.
But you'd need the camera and look_at data from your original photo to get the
right angle of tilt needed.
You may just try making an animation with your photo and rotating it around -x
to see what happens, since AFAIA, that's the bulk of the effect.

Mr Le Coat seems to have a much firmer grasp of all of this:
http://news.povray.org/povray.advanced-users/thread/%3C5bb67852%40news.povray.org%3E/?mtop=425362

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