But what if I'm not explicitly specifying up right and direction vectors..
something like what I showed..

camera {    // This one posts a warning
  orthographic
  angle 40
  location < -1500,1000,-1600>
  look_at <-100,-200,500>
}

camera {    // This one doesn't
  orthographic
  angle 35
  location < -1500,1000,-1600>
  look_at <-100,-200,500>
}


can you tell what my up right and direction vectors are exactly in each
one?? Aren't they the same because "angle" only altering the sizes of the
vectors not the directions?? I can't tell if they aren't perpendicular if I
don't know what they are..

Thanx again

"Peter Popov" <pet### [at] vipbg> wrote in message
news:09snuvckvabo7sbidlj269h75uhfor4oh9@4ax.com...
> 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

Post a reply to this message