Ron Parker wrote:

> How it's supposed to work, I don't know.

Pov docs say:
  Panoramic projection: This projection is called "cylindrical
equirectangular projection". It overcomes the degeneration problem
of the perspective projection if the viewing angle approaches 180
degrees. It uses a type of cylindrical projection to be able to use
viewing angles larger than 180 degrees with a tolerable lateral-
stretching distortion. The angle keyword is used to determine the
viewing angle.

-- 
Ken Tyler

See my 1000+ Povray and 3D Rendering and Raytracing Links at:
http://home.pacbell.net/tylereng/index.html

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