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QT installation - OpenGL (No ANGLE)

I have installed the last version of QT but it seems that this one contains some DirectX calls, so I expect that the default installer use ANGLE !

I wish to install a 100% openGL version, but I can't find one !

Any idea ?

Thx

Solution

  • All official binary packages are configured with

      -opengl dynamic

    which means that programs can either use the installed (desktop) OpenGL driver, DirectX (via ANGLE), or an OpenGL emulation in software (Mesa) as OpenGL backends. If you always want to use Desktop OpenGL, you can force this by

    1. Setting the environment variable QT_OPENGL to desktop
    2. Calling QCoreApplication::setAttribute(Qt::AA_UseDesktopOpenGL)

    See also http://doc.qt.io/qt-5/windows-requirements.html#graphics-drivers .

    If you want a Qt version that only supports the Desktop OpenGL backend, you have to build Qt from sources.