POV-Ray : Newsgroups : povray.programming : Fisheye model used? Server Time
29 Jul 2024 06:21:33 EDT (-0400)
  Fisheye model used? (Message 1 to 1 of 1)  
From: Richard Webber
Subject: Fisheye model used?
Date: 9 Jun 1998 22:20:31
Message: <357DED6F.41D4@cs.newcastle.edu.au>
Reply-To: ric### [at] csnewcastleeduau

Hi all,

Can anyone tell me which model of a fisheye-lens is used
by POVray's fisheye camera? In particular, how are the points
on the spherical projection surface mapped to points in the
2d plane of the image?

Is it:
- an orthographic parallel projection (just zeroing the z-coordinate),
- a polar azimuthal equidistant projection (the polar coordinates of
  a point relative to the "north-pole" of the sphere are used as
  the polar coordinates of the point in the plane),
- or something more exotic?

Replies to my email address please.

Thanks,

Richard

-- 
Richard Webber              .-_|\      Department of Computer Science
room: ES237                /     \       and Software Engineering,
phone: +61 2 49216034      \.--._/ <-- University of Newcastle,
fax: +61 2 49216929             v      Callaghan 2308, Australia
mailto:ric### [at] csnewcastleeduau
http://www.cs.newcastle.edu.au/~richard/
Caffeine -> Thesis -> Job -> Melbourne -> Love -> Life


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