[vtkusers] same camera on different viewpoints

[Sicilia Judice]

Are you sure that the generation of the two views occurs internally??? The
example I have found use this method (SetStereoTypeToCrystalEyes) but also
create manually the stereo images...

On 1/9/08, CLEMENTS, ROBERT <rclement at kent.edu> wrote:
>
>  If you are trying to use crystal eyes why not just
> SetStereoTypeToCrystalEyes on the  renderwindow.  You don't get much control
> over 3d rendering parameters (offset...), but everything is taken care of
> internally by vtk, including the generation of the 2 views.  Also
> ren2->SetActiveCamera(ren1->GetActiveCamera()); probably wouldn't work for
> this application since the two viewpoints should actually be 2 different
> views, consequently different cameras, right?
>
>
> Rob
>
> Luca, I had tried that myself at one point:
>
>      ren2->SetActiveCamera(ren1->GetActiveCamera());
>
> but would get random crashes, has it been ok for you? I eventually had
> to manually copy over camera parameters between the two cameras
> instead to get the same effect.
>
> I think what Sicilia wants is to have the same interaction propagated
> to all renderers (since the cameras may be setup in different
> locations). This probably isn't a typical thing to do, normally you
> want the camera location copied throughout all renderers instead. I
> was looking into this but couldn't figure out myself how to Invoke()
> the same interaction on another renderer. We can listen on Interaction
> events on the render window's interactor, but not quite sure how to
> propagate it to the other renderers.
>
> Mark
>
>
> On Jan 9, 2008 8:52 AM, Sicilia Judice <siciliajudice at gmail.com> wrote:
> > I think I am very near to finish this...
> >
> > Let me try to explain... I have to generate stereo images to use with
> > Crystal Eyes... So, I have create two viewports, displayed vertically,
> one
> > over other... The upper viewport is the stereo image for one eye, and
> the
> > second one for the other eye. I have to put one of this images with a
> > difference of 5° (the paralaxe). I was creating two cameras, each one
> for
> > one viewport. In the second camera I was using the method Azimuth(5).
> But in
> > this way, I was having to take care of the interaction, what I could not
> > done... Now I have try a different solution: I create only one camera
> and
> > set to both viewports. Now, any action with the mouse move the two
> images
> > together... But I have to translate the second image in 5°, and I do not
> > know how to do it... How can I translate an imagem in a viewport???
> >
> > ps.: sorry for the english, I am from Brazil!
> >
> > ps2.: thanks for the attention!!!
> >
> >
> >
> > On Jan 9, 2008 11:42 AM, Luca Pallozzi Lavorante <lplavorante at gmail.com>
> > wrote:
> > >
> > >
> > >
> > > Sicilia,
> > > if you work in C++, let's say you have two viewports, with two
> > corresponding instances of vtkRenderer, ren1 and ren2. Say that you want
> to
> > modify ren2´s camera according to whatever interaction you perform on
> ren1
> > (via a vtkRenderWindowInteractor). The command to accomplish that is :
> > >
> > > ren2->SetActiveCamera(ren1->GetActiveCamera());
> > >
> > > Hope this help
> > >
> > >       Luca
> > >
> > > _______________________________________________
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> > >
> >
> >
> >
> > --
> >
> ---------------------------------------------------------------------------
> > Sicilia Ferreira Judice
> > www.lncc.br/~sicilia
> > sicilia at lncc.br
> >
> > Laboratório Nacional de Computação Cientifica
> > Avenida Getulio Vargas, 333 - Quitandinha.
> > Petrópolis, RJ, Brasil - CEP: 25651-075.
> > Sala 1A-44  | Tel. +55 (24) 2233-6173
> > Lab. Virtual | Tel. +55 (24) 2233-6098
> > _______________________________________________
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> >
> >
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>


-- 
---------------------------------------------------------------------------
Sicilia Ferreira Judice
www.lncc.br/~sicilia
sicilia at lncc.br

Laboratório Nacional de Computação Cientifica
Avenida Getulio Vargas, 333 - Quitandinha.
Petrópolis, RJ, Brasil - CEP: 25651-075.
Sala 1A-44  | Tel. +55 (24) 2233-6173
Lab. Virtual | Tel. +55 (24) 2233-6098
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