[vtkusers] QVTKOpenGlWidget black screen and tests FAILED

[Elvis Stansvik]

2017-06-15 15:02 GMT+02:00 sebastien247 <sebastien247 at gmail.com>:

> Hi,
>
> I try to use QVTKOpenGlWidget with Qt Designer. But i obtain a black screen
> in my VTK view.
>
> I run tests and following tests FAILED:
>         525 - vtkGUISupportQtCxx-TestQtDebugLeaksView (OTHER_FAULT)
>         526 - vtkGUISupportQtCxx-TestQtTableModelAdapter (OTHER_FAULT)
>         527 - vtkGUISupportQtCxx-TestQtTreeModelAdapter (OTHER_FAULT)
>         528 - vtkGUISupportQtCxx-TestQVTKOpenGLWidget (OTHER_FAULT)
>         529 - vtkGUISupportQtCxx-TestQVTKOpenGLWidgetWithMSAA
> (OTHER_FAULT)
>         530 - vtkGUISupportQtCxx-TestWin32QVTKWidget (OTHER_FAULT)
>         531 - vtkGUISupportQtOpenGLCxx-TestQVTKWidget2 (OTHER_FAULT)
>

Hi Sebastien,

Could you try disabling multi-sampling with:

    auto defaultFormat = QVTKOpenGLWidget::defaultFormat();
    defaultFormat.setSamples(0);
    QSurfaceFormat::setDefaultFormat(defaultFormat);

before constructing your QApplication.

Or alternatively:

    vtkOpenGLRenderWindow::SetGlobalMaximumNumberOfMultiSamples(0);

If that doesn't help, perhaps you are running into
https://gitlab.kitware.com/vtk/vtk/issues/17058

On which platform/GPU is this?

Elvis


> Thanks
>
> Sébastien
>
>
>
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