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Random colorization of pixels in SceneGraph QQuickItem...?

  • Hi. I want to test the performance of QQuickItem vs QQuickPaintedItem. I am trying to implement a random change of pixel color in a 3000x3000 QImage. Every second, I pick a random color and colorize each pixel (9 million pixels in total).

    I implemented the QQuickPaintedItem part, but I have some kind of confusion to achieve this goal in SceneGraph.

    Any recommendations?

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