On Windows, QtCharts can only work using ANGLE in openGL es 2.0 (with setUseOpenGL(true))

We want to plot lots of datas on a histogram implemented with QtCharts module, hence we have to enable the openGL acceleration.

We using gles (enabled with QCoreApplication::setAttribute(Qt::AA_UseOpenGLES)), since we want to make this as a cross-platform application.

We found it cannot render correctly over gles version 2.0, but we have to use some features which only supported over 2.0.

The two attached images show the result for the offical QtChart example "OpenGL Accelerated Series Example". One with gles 2.0 and the other with gles 3.0.