I forgot to say that I was two instances of osgviewer::viewer.
Thanks again,
Nicolas.
2008/2/22, nicolas peña <[EMAIL PROTECTED]>:
>
> Hi Robert,
>
> I have done several tests and have reached to the conclusion that it is
> not possible
> to use two viewers at the same time from one process.
> This happens even when they do not share anything and even if I set-up
> the viewers from different threads.
> I have done the most simplistic code and even this fail.
> I'm using OSG 2.3.4 on Linux 2.6.22 with NVIDIA proprietary drivers.
>
>
> I would like to help to solve this if you confirm it as a bug and if it is
> possible.
>
>
> Thanks a lot,
> Nicolas.
>
> 2008/2/22, Robert Osfield <[EMAIL PROTECTED]>:
> >
> > Hi Nicolas,
> >
> > Its really hard to know whats going on at your end w.r.t application
> > setup and flow control so advicing on it is easy. In general I can
> > say that sharing a scene between View's is OK within on
> > CompositeViewer as they will Views on the same scene will share the
> > same FrameStamp i.e. there will be all at the same point in time.
> > Sharing one scene between multiple Viewers will hit up against the
> > problem that in one set of traversals the scene graph is one time and
> > then the traversals from the other viewer will try to change the time
> > back - and likely to cause a mess. This timing issue isn't likely to
> > cause problems with high level rendering though - it should just mess
> > up things like particle systems and sequences.
> >
> > Robert.
> >
> >
> > On Thu, Feb 21, 2008 at 8:33 PM, nicolas peña <[EMAIL PROTECTED]>
> > wrote:
> > > Hi all,
> > >
> > > As I need to control the frame rate of my cameras independently, I
> > have
> > > set-up a viewer for each one.
> > > One camera has to draw in a window and accept user input, while the
> > others
> > > should not appear in the screen at all
> > > (they have an image attached and send a copy of it to other
> > process).
> > >
> > > To achieve this, the interactive camera's graphic context is set from
> > a
> > > traits with pbuffer = false
> > > and the other one with pbuffer = true.
> > >
> > > The problem is that if a set up a loop that calls the frame method of
> > both
> > > one renders over the other as
> > > if the rendering contexts were the same.
> > >
> > > Can I share the scene among different viewers?
> > >
> > > If yes what do I need to do to render properly?
> > >
> > > Please ask for the needed details...
> > >
> > > Thanks a lot,
> > >
> > > Nicolas.
> > >
> > >
> > >
> > >
> > >
> > >
> >
> > > _______________________________________________
> > > osg-users mailing list
> > > osg-users@lists.openscenegraph.org
> > >
> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
> > >
> > >
> > _______________________________________________
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> >
> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
> >
>
>
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