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I have a working project on Qt using pcl and vtk....I was using QVTKWidget.

Now I need to re-build the project using QVTKOpenGLWidget as QVTKWidget is deprecated

This post suggests that the latest PCL version from master should be used QVTKOpenGLWidget and vtkGenericOpenGlRenderWindow with QTDesigner

I did that and changed the necessary files but when compiling the project always crashes when I link pclVisuiliser with QVTKOpenGLWidget.

QSurfaceFormat::setDefaultFormat(QVTKOpenGLWidget::defaultFormat());

QApplication app(argc, argv);

QVTKOpenGLWidget *widget = new QVTKOpenGLWidget();

vtkNew<vtkRenderer> renderer;
vtkNew<vtkGenericOpenGLRenderWindow> renderWindow;
renderWindow->AddRenderer(renderer.Get());

pcl::visualization::PCLVisualizer::Ptr pclViewer(new pcl::visualization::PCLVisualizer(renderer.Get(), renderWindow.Get(), "viewer", false));
widget->SetRenderWindow(pclViewer->getRenderWindow());

widget->show();

When these two lines are commented out the project doesn't crash :

pcl::visualization::PCLVisualizer::Ptr pclViewer(new pcl::visualization::PCLVisualizer(renderer.Get(), renderWindow.Get(), "viewer", false));
widget->SetRenderWindow(pclViewer->getRenderWindow());

I'm using Qt 5.9.5 and latest version from master on github for PCl and VTK.

Is there anything missing ?

Improve this question
3
  • Is this code part of the main() function of your application? Commented May 10, 2018 at 16:00
  • For your information, a new QVTKOpenGLWidget is coming. gitlab.kitware.com/vtk/vtk/merge_requests/3745 Commented May 23, 2018 at 12:24
  • One year later and still waiting for this merge. The old one that is deprecated and the new one that crashes... that's maddening. Commented May 8, 2019 at 12:22
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