On Thu, 25 Dec 2003 20:48:54 EST, "MrJuB" <sas### [at] mtuthaicoth>
wrote:

>What exactly does it mean??

It means that up right and direction are not perpendicular. While POV
will have no problem rendering the picture (unless two of them
coincide), the vista buffer depends on orthogonal camera vectors and
will be switched off.

If you manually specify your up and right vectors, make sure you give
them a proper direction (pun intended). For example this is a very
common mistake:

camera {
  location ...
  look_at ...
  right 16/9   // or 2.35 or 5/3 etc.
}


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG      e-mail : pet### [at] tagpovrayorg

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