"Bald Eagle" <cre### [at] netscapenet> wrote:
> I thought there had been some discussion about this, Way Back When (TM), but I
> could not locate a thread.
>
> I was wondering if there were some way to calculate the positions of the four
> corners of the visible render frame, or unit-length-vectors that point from the
> camera in those directions.
>
> If there are other formulas for calculating schtuff associated with the final
> render and field of view, that would be helpful as well.
>
> Currently just interested in typical perspective camera, though I also use
> orthographic frequently.

I once did some work related to this:

http://news.povray.org/povray.binaries.images/thread/<Xns9327B41C265F5torolavk%40204.213.191.226>

I believe that I still have the code somewhere if anyone is interested.

--
Tor Olav
http://subcube.com

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