I'm trying to load and display point clouds through a Qt+PCL configuration.
I managed to load and display a smaller point cloud (~60 thousand points), but could't display a larger one (~3 million points). Worrying that it might be a limitation on PCL, I've tried displaying both clouds directly through the PCL Visualizer class, without using Qt, and booth clouds were displayed fine.
I assume it's something to do with QVTKWidget. Is the widget somehow limiting point cloud size? From what I understand, QVTKWidget only displays PCL Visualizer's render window, which makes me suspect it's a limitation on VTK's end. Or can it be something else?
My Qt+PCL configuration is based on
- https://pcl-tutorials.readthedocs.io/en/latest/qt_visualizer.html#qt-visualizer and
- https://pcl-tutorials.readthedocs.io/en/latest/qt_colorize_cloud.html#qt-colorize-cloud.
Displaying through PCL Visualizer class based on https://pcl-tutorials.readthedocs.io/en/latest/pcl_visualizer.html#pcl-visualizer.
- PCL 1.8
- Qt 5.14.2