Margus Ramst wrote:
> 
> It seems angle has no effect with panoramic projection (at least ver 3.1g and
> Superpatch 3.1e codebase).
> Is my observation correct? Is it a bug?
> Example code:
> 
> camera{panoramic location <0,1,-6> angle 300 look_at 0}
> light_source{<10,10,-20> color 1}
> 
> box{-1,1 pigment{rgb 1}}
> box{-1,1 pigment{rgb 1} translate -x*4}
> box{-1,1 pigment{rgb 1} translate x*4}
> plane{y,-1 pigment{rgb .7}}

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. 

I say:
I can see no difference when a different angle is specified.

-- 
Ken Tyler

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

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