Accessing advanced QOpenGLFunctions

FrankE

Most of the calls are ok just by making

QOpenGLFunctions f(QOpenGLContext::currentContext());
f.glClear(GL_COLOR_BUFFER_BIT |GL_DEPTH_BUFFER_BIT);

So my context is ok

Unfortunately, I need to call some functions that are not on the base of QOpenGLFunctions like glLoadIdentity() but they are not defined in QOpenGLFunctions so I tried something as naive as

QOpenGLFunctions_3_0 f3;
f3.glLoadIdentity();

or

f3.glLoadIdentity();
((QOpenGLFunctions_3_0*)&f)->glLoadIdentity();

But it crashes in both cases, do you have any tip?
Thank you in advance.

SGaist

Hi,

After a quick check I think you are looking for QOpenGLContext::versionFunctions.

Hope it helps

FrankE

@SGaist Thank you!