SharkD <mik### [at] gmailcom> wrote:
> Due to the size differences involved, it's not practical (AFAIK) to
> model the curvature of the Earth in scenes with objects as small as a
> person. However, I was theorizing that it might be possible to fake the
> curvature by surrounding the scene (a few thousands of meters) with a
> "lens" of a precise shape. I was wondering, is this actually feasible?
> If so, what shape of a lens should I use? How will this affect rendering
> time?

Tek's amazing winning entry for the IRTC oct 1995 competition comes to mind:

http://exether.free.fr/irtc/index.php?sub=pg2005&lang=en&year=2005&month=10&typ=S

You could also use a convex mirror and look at the scene through it.

http://www.rennicks.com/userimgs/1121882016.47483675.phpbz2stI.jpg

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