OpenGL Accelerated Series work only from Qt Creator

mBoot

My system is: Windows 7, with Qt 5.11.1, QtCreator 4.7, MinGW 5.3

I'm displaying many LineSeries (depending on the configuration from 1 to 21) on a QChart, with new points every ~20ms.

For performance reasons I need to use OpenGL acceleration, which I can set by:

setUseOpenGL(1)

If I start the compiled program from QtCreator (Ctrl+R) it works correctly, since the "graphic" of the points changes, and the performance is increased.

If I run the compiled exe from windows, it does not.

Assuming a DLL is missing (even tho', I get no errors whatsoever) I copied:

opengl32sw.dll
libGLESv2.dll
libEGL.dll
Qt5OpenGLd.dll
Qt5OpenGL.dll

But nothing has changed, the performance is low and the graphic is the "common one".

Do you have any idea on what I am doing wrong?

Thanks

SGaist

Hi and welcome to devnet,

How are you doing the deployment ?
Did you already check windeployqt ?

mBoot

@SGaist Thank you for your answer.
I did not know windeployqt, I had found many people suggesting using Dependency Walker and that's what I did :).

Anyway, I've just run it, it copied a bunch of stuff and created directories in the exe folder.

BUT, sadly the problem is still there.

Maybe Qt Creator sets some enviromental variables?

mBoot

Ok, following my last post I solved the issue.

Qt Creator sets in the environment variables:

QT_OPENGL = angle

which was not set automatically in Windows.

I simply tried

set QT_OPENGL = angle

in the console, and then I run the program (from the console). Now it works correctly.

I believe Qt should implement some notification if setUseOpenGL fails for some reason tho' :-)

Cheers