POV-Ray : Newsgroups : povray.general : New camera lens models Server Time
14 Jul 2024 05:57:23 EDT (-0400)
  New camera lens models (Message 1 to 2 of 2)  
From: Bald Eagle
Subject: New camera lens models
Date: 28 Dec 2023 13:00:00
Message: <web.658db67776e337ae1f9dae3025979125@news.povray.org>
I have a guest staying over, and they asked me if I could model an astigmatism.

I was wondering if anyone had ever thought of implementing Zernike Polynomials
for modeling common optical aberrations.

The general concept seems simple enough.  I was able to model a simple
astigmatism (n=2, m=2) as an isosurface lens using ior, but I didn't seem to be
able to get the desired results using the user-defined camera feature.

I think I'd need to set the direction vectors as the normal vector of the
surface in order for it to work the way I think it ought to.

However, considering that it seems to a common way to alter a lens to correct
for various effects, maybe it would be a good idea to have a decent sized set of
functions to apply to the camera.

- BE

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From: Bald Eagle
Subject: Re: New camera lens models
Date: 29 Dec 2023 22:00:00
Message: <web.658f87aad7bf3df61f9dae3025979125@news.povray.org>
So here are a bunch of them, rendered as isosurfaces.

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Download 'zernicke.png' (122 KB)

Preview of image 'zernicke.png'


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