Hi all, and thanks in advance for any interest to this post. I'm trying to build an application with multiple views and an overlay GUI.
I dediced to use the CompositeViewer to allow different scenes and manipulators in each background views. Unfortunately, I don't manage to make the foreground view transparent. It always hide the background views. Is it only a configuration issue (camera, graphical context ?), or is it something that Views can't do ? Here is my code for now : Code: osgViewer::CompositeViewer * compositeViewer = new osgViewer::CompositeViewer(); // Initialize the graphic context osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits; traits->x = 100; traits->y = 100; traits->width = 300; traits->height = 300; traits->windowDecoration = true; traits->doubleBuffer = true; traits->sharedContext = 0; osg::ref_ptr<osg::GraphicsContext> gc = osg::GraphicsContext::createGraphicsContext(traits.get()); // Build background view osgViewer::Viewer * backgroundView = new osgViewer::Viewer(); backgroundView->getCamera()->setGraphicsContext(gc.get()); backgroundView->getCamera()->setViewport(new osg::Viewport(0, 0, traits->width, traits->height)); compositeViewer->addView( backgroundView ); // Fill background view osg::ref_ptr<osg::Node> backgroundNode = osgDB::readNodeFile(pathToScene); backgroundView->setSceneData(backgroundNode); // Build foreground view osgViewer::Viewer * foregroundView = new osgViewer::Viewer(); foregroundView->getCamera()->setGraphicsContext(gc.get()); foregroundView->getCamera()->setViewport(new osg::Viewport(traits->width/2, 0, traits->width/2, traits->height/2)); compositeViewer->addView( foregroundView ); // Try to set it transparent foregroundView->getCamera()->setClearColor(osg::Vec4(0, 0, 0, 0)); // Fill foreground view osg::ref_ptr<osg::Node> foregroundNode = osgDB::readNodeFile(pathToScene); foregroundView->setSceneData(foregroundNode); // Run the composite viewer compositeViewer->run(); The foregroundView is indeed set to black, but is not transparent at all. Thank you for any help ! Stephane[/code] ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=59592#59592 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
