I'm trying to use OSG 2.2 to create a main display of the primary scene with a smaller "picture-in-picture"-style display of a completely different scene in one of the corners.
The few examples that I've found so far have been for the older OSG 1.2 (using the old Producer interface). I initially looked at using a slave camera, but got the impression from some mailing list postings and the API that that was for a different view of the same scene. Based on that and other mailing list posts, I've been trying to use the new CompositeViewer. I've tried running the example "osgcompositeviewer" executable with every combination of the -1, -2, and -3 flags possible from the code, but I can only ever get it to show one scene on my single display. http://www.openscenegraph.org/projects/osg/browser/OpenSceneGraph/trunk/examples/osgcompositeviewer/osgcompositeviewer.cpp If I use completely separate windows in my code, I can get each scene to show up in a separate windows, but this isn't what I want. By using an osg::GraphicsContext::Traits and view->setUpViewOnSingleScreen(0), I've been able to get one scene to show up in only the specified portion of the monitor, but I still can't get two scenes on the monitor at the same time. Below is a very stripped down skeleton of the basic code I've been working with and trying to add different osg::GraphicsContext::Traits and Viewports too. ========== #include <osgViewer/CompositeViewer> #include <osgViewer/Viewer> #include <osgViewer/ViewerEventHandlers> #include <osgDB/ReadFile> #include <osgGA/GUIEventHandler> #include <osgGA/StateSetManipulator> int main (void) { osg::ref_ptr<osg::Node> cessna = osgDB::readNodeFile("cessna.osg"); osg::ref_ptr<osg::Node> cow = osgDB::readNodeFile("cow.osg"); osgViewer::CompositeViewer viewer; // Main scene (fullscreen on a 1600x1200 screen) { osg::ref_ptr<osgViewer::View> view = new osgViewer::View(); view->setSceneData(cessna.get()); viewer.addView(view.get()); } // Other scene in one corner ("picture-in-picture" style) { osg::ref_ptr<osgViewer::View> view = new osgViewer::View(); view->setSceneData(cow.get()); view->getCamera()->setViewport (new osg::Viewport(0, 512, 0, 512)); viewer.addView(view.get()); } return (viewer.run()); } ========== I've tried putting the cessna in a viewport that doesn't overlap with the cow viewport, but I only ever see either a fullscreen cessna. Am I one the right track, or am I completely off base here? Any pointers on how to achieve my desired picture-in-picture view of two separate scenes would be greatly appreciated. - Michael Berg _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
