Hi all,
I have a QtWidget app which I am converting to QtQuick. My app works well with QtWidget but after transitioning to QtQuick I have observed that the whole scene is now left handed: not only the geometry is left handed (the z axis is down when it should be up - check joined file) but also the TrackballManipulator behavior (e.g. when I pan up with the mouse the scene goes down, and it's the same opposite reaction for rotate). I do not understand where this is coming from. I was able to easily put the geometry back right handed using a scale -1 on Z but I should not have to do that and this does not solve the TrackballManipulator behavior. I have used https://bitbucket.org/leon_manukyan/qtquick2osgitem as a starting point and my code does the following: I have a RendererImpl class, created by an OsgItem and which is responsible for maintaining the osgViewer::Viewer and the osgViewer::GraphicsWindow, here is its init method: void RendererImpl::init() { m_sceneRoot = new osg::Group(); m_viewer = new osgViewer::Viewer; m_viewer->setThreadingModel(osgViewer::ViewerBase::SingleThreaded); m_viewer->setSceneData(m_sceneRoot); m_viewer->setCameraManipulator(new osgGA::TrackballManipulator); m_viewer->getCameraManipulator()->setHomePosition(osg::Vec3d(4.0, -4.0, 2.0), osg::Vec3d(0.0, 0.0, 1.0), osg::Vec3d(0.0, 0.0, 1.0)); m_viewer->home(); m_sceneRoot->addChild(setupLight()); m_sceneRoot->addChild(setupGrid(6.0f, 2.0f)); m_window = new FrameBufferWindow(this); updateSize(); osg::Camera* camera = m_viewer->getCamera(); camera->setGraphicsContext( m_window.get() ); camera->setClearColor( osg::Vec4(0.2, 0.2, 0.6, 1.0) ); } And its update method on window size change: void RendererImpl::updateSize() { m_window->getEventQueue()->windowResize(0, 0, osgItem().width(), osgItem().height() ); m_window->resized(0, 0, osgItem().width(), osgItem().height()); osg::Camera& camera = *m_viewer->getCamera(); const osg::GraphicsContext::Traits& t = *m_window->getTraits(); camera.setViewport( 0, 0, t.width, t.height ); double aspectRatio = t.height ? (double)t.width / (double)t.height : 1.0; camera.setProjectionMatrixAsPerspective(30.0f, aspectRatio, 1.0f, 10000.0f ); } And I have an item which streams the events to the window, e.g.: void OsgItem::mouseMoveEvent(QMouseEvent *event) { m_renderer->m_window->getEventQueue()->mouseMotion(event->x(), event->y()); update(); } Does anyone have an idea of what is wrong in my code? I have looked for days and I am stuck! Thanks, Antoine.
_______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
