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Thread: Qt + opengl+opencv black screen

  1. #1
    Join Date
    Apr 2011
    Qt products

    Unhappy Qt + opengl+opencv black screen

    hi, i have compiled a code taken from http://rafaelpalomar.net/sites/defau...xample.tar_.gz to display the webcam output on a qt widget. The code works great on my laptop which has nvdia graphics, but when i compiled the same code using my netbook which has a intel nm10 chipset the output only shows a black widget but i am able to display qt opengl example on the netbook. Can anyone here tell me what i am misssing or do i need any extra package to make the system work.

  2. #2
    Join Date
    Jan 2006
    Munich, Germany
    Thanked 399 Times in 393 Posts
    Qt products
    Qt3 Qt4 Qt5 Qt/Embedded
    Unix/X11 Windows

    Default Re: Qt + opengl+opencv black screen

    It probably GL extensions issue.
    Have a look in the code which GL extensions are used, and run a GL extension info tool on your the netbook, and see if the graphics card there support these extensions.
    Intel graphics chips support GL extension very poorly.
    ==========================signature=============== ==================
    S.O.L.I.D principles (use them!):

    Do you write clean code? - if you are TDD'ing then maybe, if not, your not writing clean code.
    Watch these videos, and read his books they are must if you want to write clean code:

    Recommended off-line reading Qt:
    The Foundations of Qt Development (ISBN: 1-59059-831-8)

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