POV-Ray : Newsgroups : povray.advanced-users : Converting 2D screen coordinates to 3D : Re: Converting 2D screen coordinates to 3D Server Time
30 May 2023 10:05:16 EDT (-0400)
  Re: Converting 2D screen coordinates to 3D  
From: Kenneth
Date: 9 Feb 2023 06:20:00
Message: <web.63e4d61cef540dd79b4924336e066e29@news.povray.org>
"Bald Eagle" <cre### [at] netscapenet> wrote:
> I'm trying to do a sort of rough photogrammetric conversion of points on the
> screen to true 3D coordinates with the same apparent position.

I've been wondering if the result you're after is anything like Norbert Kern's
'position finder' code from 2006. Thomas De G and I spent time in 2018 trying to
improve it...


IIRC, you first render a scene, then pick an x/y pixel position in that image
render and feed it into the code, and it gives you the actual 3D position in the
scene that the pixel corresponds to.

I have to admit that I haven't revisited that code since then, so my memory of
what it does is a bit hazy. I need to re-read that post myself! I do know that
Thomas and I also posted image examples at the time, of our work-in-progress.

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