Hi, I'm trying to render a scene node in a QtQuickItem. For this I used the Qt example "Scene Graph - Rendering FBOs" as a base template:
qtquick-scenegraph-textureinsgnode-fboinsgrenderer-cpp @ qt.io Additionally I found a Gists which does nearly the same thing I'm trying to achieve: gist:9bf4cec0aee18fc6e27b On construction I create an EmbeddedWindow and a Viewer, and setup my scene. Afterwards the createFramebufferObject is used to allocate the FBO and resize the EmbeddedViewer and the Viewport. Rendering is triggered with a frame() call inside the render function and the osg::Viewer is set up to run SingleThreaded. As long as I use/add a simple osg::Node to the scene, e.g. cow.osg, everything seems to work fine. As soon I start to change the CameraManipulator to osgEarth::Util::EarthManipulator and use a osgearth::MapNode instead, the first drawn frame is black, and changes only on re-sizing and recreating the FBO, but only once. Afterwards, the render function is called, but frame() seems to not render anything anymore. I suppose something gets messed up with the OpenGLContext or osgEarth does not work SingleThreaded, but I'm currently not able to understand the problem as a whole. I even tried to create a new shared context like rickyviking/qmlosg at github did, but could not get it to render a propre scene. Any help would be appreciated! Thank you! Cheers, Sascha p.s.: I've tried different other approaches in advance, where many of them seem to be outdated or lacking simple re-sizing functionality. My current implementation uses a QQuickItem which has a re-implemented QSGSimpleTextureNode which shares an FBO with an osg::Camera. But i cannot manage to resize the fbo texture ... p.p.s.: Sorry for not posting the links directly, but "You must have 2 posts before you can post URL's/Links." ... ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=63192#63192 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
