 | | | "real " cameras in xsi | "real " cameras in xsi 2005-06-12 - By Stefan Andersson
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another thing... would be really really really really nice if the good
people at Softimage could include this as a script for future versions
(or change the camera behavior).
regards
stefan andersson
On 6/12/05, Stefan Andersson <sanders3d@(protected)> wrote:
> Thanks for the info... I'll see if I can figure this out :)
>
> regards
> stefan andersson
>
>
> On 6/12/05, Dirk <news4dirk@(protected)> wrote:
> > To determine the field of view use this formula
> >
> > alpha = 2*arctan(d/(2*b)
> >
> > To dertermine the focal length convert the formula as follows
> >
> > b = d/(2*tan(alpha/2))
> >
> > with
> > alpha = aperture angle (FOV)
> > d = 24.892mm (for horizontal)
> > d = 18.912mm (for vertical)
> > b = focal length in mm
> >
> > Pay attention to the different film back values for the horizontal an
> > vertical measurement.
> > XSI unfortunately don't convert vertical to horizontal FOV automatically
> > if you switch from one
> > to the other.
> >
> >
> >
> > Stefan Andersson wrote:
> >
> > >Is there anyone out there that has a conversion script or something to
> > >convert camera info to "xsi camera info".
> > >When I try matching footage and have all the info from the client, I
> > >still end up "eyeballing" it because I have no idea on how to convert
> > >the info to xsi.
> > >
> > >regards
> > >stefan andersson
> > >
> > >
> > >
> > >
> >
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> >
>
>
> --
> http://www.sanders3d.com/
>
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