Stuttery resizing when OpenGLContext is attached

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Might it have something to do with this?

OpenGL bug (at least on Mac) with resizable windows

The lockstep does not solve the problem as there are still frames which escape. That causes the jumping. There are three threads which need to be synchronized: Main thread: repositioning, repainting OpenGL Render thread: rendering in OpenGL Display thread: were everything gets displayed When Main thread and OpenGL Render thread are locked, the display thread still runs free for some ms. That is where when resizing the OpenGL component the OpenGL rendered content gets distorted until a proper…

It seems that there are circumstances where there is no proper update synch happening between the main thread paint code and what is going on on the OpenGL thread…