[Interest] Qt3D and SceneGraph, flickering

[Sean Harmer]

Can you file a JIRA with a test case that reproduces this please?

Thanks,

Sean

On Wednesday 15 March 2017 20:29:38 Russell, Matthew wrote:
> 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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