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Using raw OpenGL in QQuickItem?

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  • A Offline
    A Offline
    Alexey
    wrote on last edited by
    #1

    Hi,
    I'm trying to implement a custom QQuickItem that uses raw OpenGL calls to render itself. Qt 5 docs says:

    "create a FramebufferObject, render into it and use the result as a textured node in the scene graph, for instance using a QSGSimpleTextureNode"

    But I'm new to OpenGL and didn't ever work with Framebuffer Object before. I didn't find any appropriate example on the Internet. Could you, please, provide here code snippets demonstarting the proposed steps:

    1. creating FrameBuffer Object
    2. rendering into it (for example, line or rectangle)
    3. using the result to initialize QSGSimpleTextureNode

    Thank you very much in advance!

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    • Z Offline
      Z Offline
      z.emb
      wrote on last edited by
      #2

      http://qt-project.org/forums/viewthread/21396/#114311

      doesn't help you at all?
      In my thread mentioned above is also a link to the "Ogre":http://qt.gitorious.org/qt-labs/qmlogre implementation which does basically the same thing.

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      • A Offline
        A Offline
        Alexey
        wrote on last edited by
        #3

        [quote author="z.emb" date="1360759775"]http://qt-project.org/forums/viewthread/21396/#114311

        doesn't help you at all?
        In my thread mentioned above is also a link to the "Ogre":http://qt.gitorious.org/qt-labs/qmlogre implementation which does basically the same thing.[/quote]

        Thank you, it helped me, but... not enough.

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