Unsolved My QQuickRenderControl isn't calling the render function if root QQuickItem isn't “dirty”
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I'm experimenting with the "RenderControl" project from Qt's Examples with the goal of knowing how fast would Qt's Quick Framework with a QQuickRenderControl would render an empty scene.
The source can be found here
For this, I've removed almost everything from the qml file and left a simple rectangle but I noticed that my
WindowSingleThreaded::render()
stopped being called altogether.I saw that introducing a simple SequentialAnimation to the root item made the
WindowSingleThreaded::render()
get called again every frame.Now I'm sure this would be somewhat ideal for all those cases where you don't want to re-render your scene if nothing has changed but in my case, I want to have full control over the rendering loop even if the qml scene isn't "dirty".
I saw that maybe a qml Timer could be introduced to try to have the scene forcefully updated but even this doesn't sound like the ultimate solution as I want to avoid going to javascript and back every frame.
Does anyone know how I can forcefully have
WindowSingleThreaded::render()
whether the QQuickWindow wants it or not.Thanks