-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

jiangzhijun wrote:
>   I have done some expriments to recovery the focus-length of the above
> camera,but was exhausted to find that the focus-length seems floating,Is
> that real in POV? and how to fix the camera focus-length even when it moves
> along?

>        angle 2*atan2 (36, 2*f)*180/pi
>   if this 'angle'  is fixed,does it mean that the focus length is fixed?
> 
	If your only camera settings are "location" and "look_at", then the
field of view (focal length) will change when these values change.
The best way to control directly the FOV is with the angle keyword, e.g:

camera {
   location -z
   look_at  0
   angle    40
}

	For more details on camera parameters, I can only refer you to the
documentation (section 2.3.1):
http://www.povray.org/documentation/view/3.6.1/246/

		Jerome

- --
******************************
*      Jerome M. Berger      *
*  mailto:jeb### [at] freefr   *
*  http://jeberger.free.fr/  *
******************************
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2 (GNU/Linux)

iD8DBQFDalXBqIYJdJhyixIRAjrUAJ9RM+3v2nla2A1N673yqZXruWVT3ACeOPyU
rVoN0X3ZP4aV4L85SLZVz0w=
=uI0K
-----END PGP SIGNATURE-----

Post a reply to this message