Sorry Robert,
I should precise in detail my problem. Each slave gets updated each frame.
osg54-osgd.dll!osg::View::updateSlave(unsigned int i=0) Line 154 C++
osg54-osgd.dll!osg::View::updateSlaves() Line 144 + 0xc bytes C++
osg54-osgViewerd.dll!osgViewer::Viewer::updateTraversal() Line 927 + 0xe
bytes C++
osg54-osgViewerd.dll!osgViewer::ViewerBase::frame(double
simulationTime=1.7976931348623157e+308) Line 607 + 0xf bytes C++
And the slave gets the master camera's projection matrix * offset. so what
happends when we resize the master camera, the aspect ration gets changed,
and then it has also
an impact to the slave camera. so should we apply an slave inverse master
projection * slave projection => slave._projectionOffset, make not much
sense w.r.t. performance
or should be change to Reference Frame : Absolute, and update each time the
view matrix externally. or should be fix this in the code.
void View::updateSlave(unsigned int i)
{
if (i >= _slaves.size() || !_camera) return;
Slave& slave = _slaves[i];
if (slave._camera->getReferenceFrame()==osg::Transform::RELATIVE_RF)
{
slave._camera->setProjectionMatrix(_camera->getProjectionMatrix() *
slave._projectionOffset);
slave._camera->setViewMatrix(_camera->getViewMatrix() *
slave._viewOffset);
}
slave._camera->inheritCullSettings(*_camera,
slave._camera->getInheritanceMask());
}
2009/1/26 Robert Osfield <robert.osfi...@gmail.com>
> Hi Adrian,
>
> You can control the management of the projection matrix w.r.t resizing
> via osg::Camera methods. I can't recall them off the top of my head,
> go have a browse.
>
> Robert.
>
> On Mon, Jan 26, 2009 at 10:20 AM, Adrian Egli OpenSceneGraph (3D)
> <3dh...@gmail.com> wrote:
> > Hi Robert,
> >
> > for each slave camera, osg overwrites the projection matrix (each frame).
> > what happends when i have a slave with w=1,h=1 and a second w=2,h=1 ->the
> > aspection ratio should be different, but i get wrong output. i believe
> that
> > the aspect ratio
> > gets overwritten with the master cams, this is for example similart to
> the
> > first slave w=1,h=1. do i right understand the osg? if yes, how should if
> > fix this issue in our appliction
> >
> > adrian
> >
> > --
> > ********************************************
> > Adrian Egli
> >
> > _______________________________________________
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> > osg-users@lists.openscenegraph.org
> >
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> >
> >
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--
********************************************
Adrian Egli
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