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}}
