[vtkusers] same camera on different viewpoints

Wed Jan 9 14:53:38 EST 2008

hummmmmm, that is interesting... I will testing this and then tell you what
happen!
thanks everyone for the help!!!!

On 1/9/08, jonathan grimm <flymolo at gmail.com> wrote:
>
> If you want CrystalEyes alternate frame stereo, vtk will do everything for
> you.  Did you enable StereoCapableWindow?  Have you tested stereo on your
> system with another app?
>
> If you want the 2 separate images, you can create a RenderWindow with
> StereoTypeToLeft and one with StereoModeTypeToRight.
>
>  On Jan 9, 2008 11:36 AM, Sicilia Judice <siciliajudice at gmail.com> wrote:
>
> > 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 <http://www.lncc.br/%7Esicilia>
> > > > 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
> > > > _______________________________________________
> > > > This is the private VTK discussion list.
> > > > Please keep messages on-topic. Check the FAQ at:
> > > > http://www.vtk.org/Wiki/VTK_FAQ
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> > > >
> > > >
> > > _______________________________________________
> > > This is the private VTK discussion list.
> > > Please keep messages on-topic. Check the FAQ at:
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> > >
> > >
> >
> >
> >
> > --
> >
> >
> > ---------------------------------------------------------------------------
> > Sicilia Ferreira Judice
> > www.lncc.br/~sicilia <http://www.lncc.br/%7Esicilia>
> > 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
> >
> > _______________________________________________
> > This is the private VTK discussion list.
> > Please keep messages on-topic. Check the FAQ at: http://www.vtk.org/Wiki/VTK_FAQ
> >
> > Follow this link to subscribe/unsubscribe:
> > http://www.vtk.org/mailman/listinfo/vtkusers
> >
> >
>
>
> --
> Sometimes it's hard to tell the dancer from the dance - Corwin in CoC

-- 
---------------------------------------------------------------------------
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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