Gilles Tran <tra### [at] inapginrafr> wrote in message
news:3ce3eec5$1@news.povray.org...


Yeah, because you specified up right and direction, that will determine the
angle. In this case direction is the same length as up, which means you'll have
a 90 degree vertical angle (i.e. both the top and bottom of the view fustrum
will be at 45 degrees from the direction, so 90 degrees in total).

This means your horizontal view angle will be
2*degrees(atan2(image_width/image_height,1))
but now I'm just trying to blind you all with maths :)

--
Tek
http://www.evilsuperbrain.com

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