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Demo: Integrating OpenSceneGraph with Qt Quick

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osgosgearthopenscenegraphquickqml
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  • C Offline
    C Offline
    cmannett85
    wrote on 13 Oct 2013, 11:11 last edited by
    #10

    I found the problem, the signal/slot connection to the failing method:

    @connect(window, SIGNAL(beforeRendering()), this, SLOT(frame()));@

    It should be specified as a Qt::DirectConnection as noted in the "QQuickWindow docs":http://qt-project.org/doc/qt-5.0/qtquick/qquickwindow.html#exposure-and-visibility - "Warning: As signals related to rendering might be emitted from the rendering thread, connections should be made using Qt::DirectConnection."

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    • R Offline
      R Offline
      rooi
      wrote on 12 Nov 2013, 22:16 last edited by
      #11

      Hi Konstantin,

      I recently got some more time to look into your project again. As I stated before I like the way you integrate osg and qt/qml.

      I tried to extent the functionality by adding some osg pickers to allow identifying the name and type of a node underneath the mouse. This seems to work initially, but unfortunatly it doesn't after a resize of the window.

      Do you have any idea why this occurs? My guess is that something does not get the new window size after a resize, but which object? Hopefully you could give me another pointer to try and get this fixed.

      Thank you very much!

      Rooi

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      • R Offline
        R Offline
        rooi
        wrote on 13 Nov 2013, 13:07 last edited by
        #12

        Hi,

        I managed to get the picker to work by doing the following:

        Add the following lines to updateViewport()
        QSize size(quickItem->boundingRect().size().toSize());
        if(view->getCamera()->getGraphicsContext())
        view->getCamera()->getGraphicsContext()->resized( 0, 0, size.width(), size.height() );

        Thanks.

        V 1 Reply Last reply 21 Aug 2015, 02:42
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        • A Offline
          A Offline
          alydev
          wrote on 27 Feb 2014, 11:53 last edited by
          #13

          Is someone can send me the demo ? I can't download it...

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          • P Offline
            P Offline
            podsvirov
            wrote on 11 Mar 2014, 10:36 last edited by
            #14

            I am sorry, but the link to the archive is not working.
            You can try to get the code via git:
            @
            git clone git://podsvirov.pro/osg/osgqtquick.git
            @

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            • P Offline
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              podsvirov
              wrote on 17 Apr 2014, 13:18 last edited by
              #15

              Good news: a link to a screenshot and the source code in the archive is working again!

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              • A Offline
                A Offline
                anu.rastogi
                wrote on 7 Dec 2014, 00:38 last edited by
                #16

                Hi Konstantin,

                Sub: enable multisampling

                Your example is really well done, Thanks. Now I want to enable multisampling, but I can not figure out how to enable it. I want to use the buffer mode.
                The QOpenGLFramebufferObjectFormat.setSamples(4) does not seem to work. I don't have a very deep knowledge or osg::GraphicsWindow and its traits. But if you can guide me, I can take a look.

                Thanks a lot,

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                • A Offline
                  A Offline
                  anu.rastogi
                  wrote on 7 Dec 2014, 00:38 last edited by
                  #17

                  Hi Konstantin,

                  Sub: enable multisampling

                  Your example is really well done, Thanks. Now I want to enable multisampling, but I can not figure out how to enable it. I want to use the buffer mode.
                  The QOpenGLFramebufferObjectFormat.setSamples(4) does not seem to work. I don't have a very deep knowledge or osg::GraphicsWindow and its traits. But if you can guide me, I can take a look.

                  Thanks a lot,

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                  • R rooi
                    13 Nov 2013, 13:07

                    Hi,

                    I managed to get the picker to work by doing the following:

                    Add the following lines to updateViewport()
                    QSize size(quickItem->boundingRect().size().toSize());
                    if(view->getCamera()->getGraphicsContext())
                    view->getCamera()->getGraphicsContext()->resized( 0, 0, size.width(), size.height() );

                    Thanks.

                    V Offline
                    V Offline
                    Voya
                    wrote on 21 Aug 2015, 02:42 last edited by
                    #18

                    @rooi
                    oh I am facing the same problem as you did. when I resize the windows ,it seems that the Qopenglcontext turn to null . so the fbo is initialized failed. using the method you give it does not work . i try to delete the updatafbo it works but the size of texture does not changed any more.

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                    • P Offline
                      P Offline
                      podsvirov
                      wrote on 10 Sept 2015, 06:37 last edited by JKSH 9 Dec 2015, 00:27
                      #19

                      Meet osgQtQuick 2.0!

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                      • P Offline
                        P Offline
                        podsvirov
                        wrote on 24 Nov 2015, 17:16 last edited by
                        #20

                        Wow! More than 10 000 views :-)
                        It seems that many who like it!

                        I repeat: Meet osgQtQuick 2.0!

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