POV-Ray : Newsgroups : povray.binaries.images : Example of sphere distortion Server Time
18 Aug 2024 16:19:14 EDT (-0400)
  Example of sphere distortion (Message 1 to 2 of 2)  
From: Patrick Dugan
Subject: Example of sphere distortion
Date: 23 Mar 2001 19:19:20
Message: <3abbe808@news.povray.org>
Here is an example (i hope) of the distortion I referred to in general.  The
arrows on the left picture point to places that seem skewed to me on the
spheres.  The picture on the left was rendered with 1024x768 size while the
picture on the right was rendered at 1024 x 1024.  The spheres in the right
side picture seem normal to me.


Post a reply to this message


Attachments:
Download 'Image2.jpg' (69 KB)

Preview of image 'Image2.jpg'
Image2.jpg


 

From: Darcy Johnston
Subject: Re: Example of sphere distortion
Date: 23 Mar 2001 23:15:51
Message: <3abc1f77@news.povray.org>
"Patrick Dugan" <pat### [at] netinsnet> wrote in message
news:3abbe808@news.povray.org...
> Here is an example (i hope) of the distortion I referred to in general.
The
> arrows on the left picture point to places that seem skewed to me on the
> spheres.  The picture on the left was rendered with 1024x768 size while
the
> picture on the right was rendered at 1024 x 1024.  The spheres in the
right
> side picture seem normal to me.

What was the 'right' value for your camera?
Was it the same in both renders?

If it was, that may have been your problem.
The value given to 'right' in the camera definition help Povray figure out
what the perspective of the image is (is perspective the correct word to use
here?). So if you're rendering at 1024x768, your right should be x*4/3,
while a render at 1024x1024 shoudl have a right of just x.

Hope that helps (and I hope I didn't mess that up).
Darcy


Post a reply to this message

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