Hi,
I have several QGLWidgets sharing the same OpenGL context (using
shareWidget). Using the overpainting example I have been able to get
basic text overlaid on a single QGLWidget by overriding paintEvent
instead of paintGL and using QPainter.drawText(). However, when using
multiple QGLWidgets, it appears that GL-rendered graphics aren't always
being drawn to the widget, whether I call update() or repaint(); all I
get is a blank background with my overlaid text. I can see the code
doing the actual GL rendering being called, but nothing shows up.
However, if I remove the calls to QPainter and call the method paintGL
instead of paintEvent, everything updates correctly. What is going on?
Thanks,
-geordan
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