POV-Ray : Newsgroups : povray.general : Focal Blur: Why focal_point *vector*? : Re: Focal Blur: Why focal_point *vector*? Server Time
5 Aug 2024 22:13:07 EDT (-0400)
  Re: Focal Blur: Why focal_point *vector*?  
From: Philippe Debar
Date: 24 Jul 2002 14:12:35
Message: <3d3eee13@news.povray.org>
"Peter Popov" <pet### [at] vipbg> wrote in message
news:tvisjust0rhrgpioij3s9h42p6djgf5bp0@4ax.com...
<snip>
> I've
> seen photos with their focal point way off the center - of course,
> they were cropped off bigger photos to achieve the effect,

You can gat this effect with some high-end cameras or lenses, although I do
not know how it is called in English. You need to be able to dis-align the
lens and the film (rotation and/or translation). I believe you can also
achieve this using an enlarger.

> but if you
> want to do that in POV and have to render an image where you'll only
> use 25% of it, it won't make much sense.

You can shear the camera to get the effect. See the shear.pov file in the
../scene/camera/ directory of pov 3.5. Don't forget to switch the vista
buffer off (-uv).



Povingly,


Philippe


Post a reply to this message

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