[Radiance-general] New stereographic fisheye view

[Mark de la Fuente]

Axel,
 
Just out of curiosity, in your projections.pdf document, the fish eye views show a scene that is mirrored on the top and bottom of the image.  Why is this?  If the view is looking straight up, I would think there would only be one building, one arch, one fountain, etc..  Also, the bottom of the image is darker than the top.  Can you explain?
 
Thanks
 
Mark
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