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Different angle photos from a camera that you know perfectly the lens length
and the lens distortion ( I m using a Canon 300D ) may help to make an
accurate tracking with no pain even if you don't know the shot details.
Harry Bardak
TD / Compositor.
Http://perso.wanadoo.fr/harry.bardak/
+33 6 76 63 35 54
+44 781 661 4147
From: Jordi Bares <jordibares(at)the-mill.com>
Reply-To: XSI(at)Softimage.COM
To: XSI(at)Softimage.COM
Subject: Re: "real" cameras in xsi
Date: Fri, 27 Jan 2006 09:24:34 +0000
I would be happy if the cameras store accurate lens information per
frame, that *truly* would help us.
About camera position and orientation, you are going to need an
incredible accuracy when dealing with certain shots, therefore i am not
expecting this to happen anytime soon.
jb
On Thu, 2006-01-26 at 16:46 +0000, Adrian Wyer wrote:
> of course we are...... the day we no longer have to track cameras will
be a
> great day indeed!
> no more dealing with crappy/incomplete camera information
> no more dealing with crappy camera men
> no more getting the whole shoot to stop while we stumble around on set
> trying to measure stuff
>
> i cant wait!
>
> a
>
> adrian wyer
> head of 3d
> milltv
> adrian(at)the-mill.com
> www.the-mill.com
> t: +44 (0)20 7287 4041
> f: +44 (0)20 7915 0551
>
> ----- Original Message -----
> From: "Jordi Bares" <jordibares(at)the-mill.com>
> To: <XSI(at)softimage.com>
> Sent: Thursday, January 26, 2006 4:30 PM
> Subject: RE: "real" cameras in xsi
>
>
> > Dreaming again??? ;-)
> >
> > jb
> >
> > On Thu, 2006-01-26 at 13:16 +0000, kim aldis wrote:
> >> Wait till Gallileo comes on line. GPS on cameras accurate to a
> >> centimetre.
> >> No more camera tracking. Yeehahh!
> >>
> >> > -----Original Message-----
> >> > From: owner-xsi(at)Softimage.COM
> >> > [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Stefan Andersson
> >> > Sent: 26-January-2006 07:06
> >> > To: XSI(at)Softimage.COM
> >> > Subject: Re: "real" cameras in xsi
> >> >
> >> > Talking about "lenses" I just had to share this link that I
> >> > was given yesterday... pretty damn cool.
> >> >
> >> > http://graphics.stanford.edu/papers/lfcamera/
> >> >
> >> > regards
> >> > stefan
> >> >
> >> > On 1/25/06, Francois Lord <francoislord(at)gmail.com> wrote:
> >> > > cuz you don't have an RSS feed of xsi-blog.com in your
> >> > Thunderbird mailer.
> >> > > It's not too late to fix it!
> >> > >
> >> > > Robert Moodie wrote:
> >> > >
> >> > > >How the hell did I miss that, Francois?
> >> > > >
> >> > > >Cheers
> >> > > >_rob
> >> > > >
> >> > > >----- Original Message -----
> >> > > >From: "Francois Lord" <francoislord(at)gmail.com>
> >> > > >To: <XSI(at)Softimage.COM>
> >> > > >Sent: Wednesday, January 25, 2006 2:37 PM
> >> > > >Subject: Re: "real" cameras in xsi
> >> > > >
> >> > > >
> >> > > >And don't forget, this can be useful:
> >> > > >http://www.xsi-blog.com/?p=65
> >> > > >(awfully shameless plug)
> >> > > >
> >> > > >Gene Crucean wrote:
> >> > > >
> >> > > >
> >> > > >
> >> > > >>Holy thread revival batman!
> >> > > >>
> >> > > >>I'm still a little confused by this stuff (I know I know). So
in
> >> > > >>boujou, it wants the film back size (which I don't have,
> >> > but I know
> >> > > >>it was shot on a Sony HDW-5900H), and the focal length which is
> >> > > >>3'2". I tried searching on the web for the film back size of
that
> >> > > >>camera but no information for that camera even comes up
> >> > at all. So I
> >> > > >>guess my first real question is does anyone know the FB
> >> > size of that camera?
> >> > > >>The only information that we have on the camera is the lens (7m
> >> > > >>which I'm assuming is a typo meant to be mm), the foc
> >> > which is 3'2"
> >> > > >>and the PSF which is 23.98. Well and some other random info
like
> >> > > >>height, tilt, Tstop, roll etc.
> >> > > >>
> >> > > >>I ran a quick track on it without using the correct FB
> >> > info and no
> >> > > >>surprise it comes into xsi with a FOV of something like
> >> > 12 (way off
> >> > > >>visually). I'm a little confused with all this conversion
> >> > stuff so
> >> > > >>any input would be appreciated.
> >> > > >>
> >> > > >>Thanks guys
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>On 6/15/05, *Robert Moodie* <robertm(at)hybride.com
> >> > > >><mailto:robertm(at)hybride.com>> wrote:
> >> > > >>
> >> > > >> While we're on the subject - here's a little something:
> >> > > >>
> >> > > >> Run this (vbs) script:
> >> > > >>
> >> > > >> NewScene
> >> > > >> SelectObj "Camera_Root", "BRANCH"
> >> > > >> ToggleVisibility
> >> > > >> DeleteObj "Camera_Interest"
> >> > > >> SelectObj "Camera"
> >> > > >> Rotate , 0, 0, 0, siAbsolute, siPivot, siObj, siX, ,
> >> > , , , , , , 0
> >> > > >> GetPrim "Null"
> >> > > >> GetPrim "Null"
> >> > > >> Translate , 0, 0, -20, siAbsolute, siPivot, siObj,
> >> > siZ, , , , , ,
> >> > > >> , , , , 0
> >> > > >>
> >> > > >> Now, hide the grid in the camera view and in any
> >> > other view - NOT
> >> > > >> THE CAMERA VIEW - select and rotate (pan) the camera.
> >> > > >> Watch what happens to the nulls - there is no parallax.
> >> > > >>
> >> > > >> Now run this:
> >> > > >>
> >> > > >> SetValue "Camera.kine.local.pposz", 1.5
> >> > > >>
> >> > > >> (What we are doing is offsetting the camera pivot to
> >> > be 'behind'
> >> > > >> the lens - to see the pivots turn them on in
> >> > Visibility options)
> >> > > >>
> >> > > >> Now select and pan the camera as you did before and watch
the
> >> > > >> magic of parallax.
> >> > > >>
> >> > > >> This is no limitation of XSI - it happens in all 3D apps -
but
> >> > > >> basicaly the pivot point of 3D cameras is also the
> >> > Nodal point.
> >> > > >> And this never happens in real life.
> >> > > >>
> >> > > >> For further explanation read this:
> >> > > >> http://360texas.com/tips/nodalpts.htm
> >> > > >> <http://360texas.com/tips/nodalpts.htm>
> >> > > >>
> >> > > >> Hopefully this may be a little help to someone. If
> >> > you know the
> >> > > >> make and models of your 'real' cameras, tripods or
> >> > dollies you can
> >> > > >> set the pivot offset values to match exactly what was on
set.
> >> > > >>
> >> > > >> _rob
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>--
> >> > > >>-gc
> >> > > >>
> >> > > >>
> >> > > >
> >> > > >---
> >> > > >Unsubscribe? Mail Majordomo(at)Softimage.COM with the
> >> > following text in body:
> >> > > >unsubscribe xsi
> >> > > >
> >> > > >
> >> > > >
> >> > > >---
> >> > > >Unsubscribe? Mail Majordomo(at)Softimage.COM with the
> >> > following text in body:
> >> > > >unsubscribe xsi
> >> > > >
> >> > > >
> >> > > >
> >> > > ---
> >> > > Unsubscribe? Mail Majordomo(at)Softimage.COM with the
> >> > following text in body:
> >> > > unsubscribe xsi
> >> > >
> >> >
> >> >
> >> > --
> >> > ______________________________________________________________
> >> > __________
> >> > http://stefan.sanders3d.com/
> >> > http://os3d.blogspot.com/
> >> >
> >> > ---
> >> > Unsubscribe? Mail Majordomo(at)Softimage.COM with the following
> >> > text in body:
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> >> >
> >>
> >> ---
> >> Unsubscribe? Mail Majordomo(at)Softimage.COM with the following text in
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> > --
> > Jordi Bares <jordibares(at)the-mill.com>
> > The Mill
> >
> >
> > ---
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Jordi Bares <jordibares(at)the-mill.com>
The Mill
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