POV-Ray : Newsgroups : povray.general : About a projection model Server Time
22 Dec 2024 21:54:48 EST (-0500)
  About a projection model (Message 1 to 2 of 2)  
From: fuyok
Subject: About a projection model
Date: 5 Nov 2019 00:10:01
Message: <web.5dc103b17910ee8b2dc3df130@news.povray.org>
Hello. I'm Japanese student.

Can the projection model used in pov-ray be expressed by some equation?

For example, this is the perspective projection conversion formula used in
OpenCV.(It is in "Detailed Description" in the page.)

https://docs.opencv.org/4.1.1/d9/d0c/group__calib3d.html

If you can formulate the ultra wide angle model, fisheye model, or basic
perspection model used in pov-ray, I would like to know the formula. Also, if
there is something that should be referred to in that regard, please let me
know.

I'm sorry in my very poor English.


Post a reply to this message

From: jr
Subject: Re: About a projection model
Date: 5 Nov 2019 07:00:00
Message: <web.5dc163a7eba77195feeb22ff0@news.povray.org>
hi,

"fuyok" <nya### [at] ichigome> wrote:
> Hello. I'm Japanese student.
>
> Can the projection model used in pov-ray be expressed by some equation?
>
> For example, this is the perspective projection conversion formula used in
> OpenCV.(It is in "Detailed Description" in the page.)
>
> https://docs.opencv.org/4.1.1/d9/d0c/group__calib3d.html
>
> If you can formulate the ultra wide angle model, fisheye model, or basic
> perspection model used in pov-ray, I would like to know the formula. Also, if
> there is something that should be referred to in that regard, please let me
> know.

I guess you already looked through the documentation?
<http://wiki.povray.org/content/Reference:Camera>

the illustrations accompanying each camera type may give you dome information.

> I'm sorry in my very poor English.

(it's pretty good, actually.  (and better than my Japanese.  :-)))


regards, jr.


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.