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Random render artefacts on Windows

  • Hi,

    So I am developing a software with Qt Quick that does pointcloud rendering.
    I have some rendering code which uses the old Fixed Function Pipeline methods (can't really change this).
    I am trying to create my rendering code as an Qt Quick item that I can add to my project like any other QML element.
    And to achieve my goal I am using QQuickFramebufferObject and QQuickFramebufferObject::Renderer.
    It works fine on all platforms (Windows, Linux, MacOS).
    Have to mention that I am using Qt 5.9.
    I recently deployed the software after testing it on all mentioned platforms in the office and I got an email from a customer including these images and asking what is happening with the visualization:

    The pointcloud and all the old Fixed Function Pipeline visualization works just fine on their system only the Qt elements have these random render artefacts.

    I really don't know what is the issue and since I can't recreate the problem on the machines that I am using for testing I don't know how I can figure out the problem.
    So has anyone encountered a similar issue?
    Or Do you have any suggestion on what could be the cause of this problem?
    I would appreciate any help.

  • Moderators

    Try it out on machine with no OpenGL drivers installed - maybe they have issue with MESA or the DX12 renderers?

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