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Thread: System does not support OpenGL/framebuffer objects

  1. #1
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    Default System does not support OpenGL/framebuffer objects

    Hi,
    I'm running: Windows 2000 & Qt 4.2.3 Open Source.
    When I try to execute some OpenGL examples included with Qt, I get the following error:
    "System does not support OpenGL/framebuffer objects".
    Reading the code, I figured out that my systems asserts both
    Qt Code:
    1. !QGLFormat::hasOpenGL() || !QGLFramebufferObject::hasOpenGLFramebufferObjects()
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    . Both of them are false.
    What can I do to correct this?
    Also if I comment that, I get the picture which is somehow distorted (like skew) also some other drawings are displayed like "two". I don't know the name of that visual illness in English. You see two pictures of everything. I'll attach an image.



    Please note that this happens only with code that has frame buffer.

    What is the solution for that?

    Best Regards,
    -Mustafa

  2. #2
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    Default Re: System does not support OpenGL/framebuffer objects

    Do other (non-Qt) OpenGL based programs work correctly for you?

  3. #3
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    Default Re: System does not support OpenGL/framebuffer objects

    yes. i tried this code from NeHe lessons (the Visual C++ Code)
    http://nehe.gamedev.net/data/lessons....asp?lesson=02

    also, some other Qt OpenGL programs work fine (the code without any reference to frame buffer)

    -Mustafa

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    Default Re: System does not support OpenGL/framebuffer objects

    What video card do you have?

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    Default Re: System does not support OpenGL/framebuffer objects

    Sis 661FX built-in 32MB

  6. #6
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    Default Re: System does not support OpenGL/framebuffer objects

    I'm not an expert on this but I think it doesn't have support for framebuffers. Please also try some advanced benchmarking tool like 3DMark. It will probably tell you your video driver doesn't support shaders, framebuffers and/or some other things. Are you sure QGLFormat::hasOpenGL() returns false for you?

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