[vtkusers] opengl2 vtk rendering back end and Qt

Róbert Špir spir.robert at gmail.com
Tue Dec 20 01:50:56 EST 2016

I think you need to set stencil buffer size using these calls


QSurfaceFormat surfaceFormat = ui->qvtkWidget->windowHandle()->format();






From: vtkusers [mailto:vtkusers-bounces at vtk.org] On Behalf Of Alexandre Boucher
Sent: Tuesday, December 20, 2016 6:48 AM
To: vtkusers at vtk.org
Subject: [vtkusers] opengl2 vtk rendering back end and Qt


Hi All,


I am having a problem using the opengl2 backend with QVTKWidget (I tried Qt 5.4 to 5.7 and vtk 7.0 and 7.1). When looking at a simple vtkImageData for instance some of the faces of the grid are not properly displayed, see image below.  Everything works fine with the opengl1 backend.


I also try using QVTKWidget2, but I am getting a crash when the widget call OpenGLInitState().


Is there a trick to use Qt and opengl2?






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