Hi Tomas,
today I could check how I implemented the frame-update for multiple Windows
under Win32. It is done like this:
long FOX_OSG_MDIView::OnIdle(FXObject *sender, FXSelector sel, void* ptr)
{
if(m_osgViewer.valid() )
{
if(m_osgViewer->getCamera()->getGraphicsContext()->makeCurrent())
{
m_osgViewer->frame();
m_osgViewer->getCamera()->getGraphicsContext()->releaseContext();
}
}
getApp()->addChore(this, ID_CHORE);
return 1;
}
I justed checked if multiple Windows are updated correctly, but I havn't done
further testings on this. Also tested resizing and closedown of some of the
viewer-windows. it worked so long without probsunder win32.
just instantiate multiple views like this:
FOX_OSG_MDIView* mdichild;
for(int i = 0 ; i < 2; i++)
{
for(int j = 0 ; j < 2; j++)
{
mdichild=new
FOX_OSG_MDIView(__sharedScene.get(),mdiclient,"FOX osgViewer", NULL,
mdimenu,MDI_TRACKING,10+(640*i),10+(480*j),640,480); //not MDI_MAXIMIZED!
}
}
mdichild->setFocus();
mdiclient->setActiveChild(mdichild);
the GUI update mechanism is independent from the render-main-loops, so you will
get stable update rates in the viewer windows. I'm running each of the viewer
windows with stable frequency of 50 Hz, while the gui is also updated, but at
very low frequency.
Updating your osg related stuff is easy in fox (same as in qt, fltk, wxwindows
etc.):
simply create datatargets used by the gui-widgets, connect them with your
application data make your application data accessible by update-callbacks and
uniform-callbacks in osg.
It works fine for me so long.
Markus
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