[Interest] Qt3D and SceneGraph, flickering

[Russell, Matthew]

With Qt 5.8.0 on a Windows Surface, I'm experiencing flickering in my app that has both a SceneGraph (modelled after the Squircle example) and Qt3D renderer (RenderSettings, with a viewport, with a RenderSurfaceSelector) in a QQuickView

The flicking only seems to occur when the QML and SceneGraph are rendering, and gets lot worse in full screen mode.  I also don't see any flicking when built on Linux or on a Windows laptop.

I've also tried rendering on the beforeRendering and afterRendering signals, I get the flickering either way.

Is there a good way to mix these two technologies?  Or should I only use my scene graph?  (I'm primarily using the Qt3D to display a 3D model with SceneLoader, I could probably figure out how to draw this in my scene graph as well, but hoping there's another way)

Another idea I had was to somehow call my SceneGraph as a render pass, instead of on the before/after rendering signals, but I also don't have any idea how to do that right now.
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