[Interest] Qt 5.7 glGetError returns GL_INVALID_OPERATION in QSGGeometryNode::preprocess

[Roberto Garrido]

Hi!
We have just updated our Qt app (using a custom QQuickItem to render our
OpenGL scene via QSGGeometryNode::preprocess) to use Qt 5.7.

Calling glGetError the first thing in QSGGeometryNode::preprocess returns
a GL_INVALID_OPERATION GL error.

Any idea on why could be happening?
Thanks in advance,
Robert.


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