Reports

Solved. I managed to get it working. Trick was to link the FrameGraph to the QRenderCapture instance. Here is the code added to init()

self.render_capture = QRenderCapture()
self.view.activeFrameGraph().setParent(self.render_capture)
self.view.setActiveFrameGraph(self.render_capture)

The other gotcha is to wait for the rendering to complete. Here is how I implemented it.

def capture_image(self):
   self.reply = self.render_capture.requestCapture()
   loop = QEventLoop()
   self.reply.completed.connect(loop.quit)
   QTimer.singleShot(200, loop.quit)  # Timeout after 1 second
   loop.exec()
        
   image = self.reply.image()
   image.save("capture_output.jpg", "JPG")

I just can't believe how poorly documented this Qt3D library is...

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