Can someone give me answer: what's the difference between OpenGL version of Qt and basic version? Saw that in installer. Thanks!
"this page":http://qt-project.org/wiki/Qt-5-on-Windows-ANGLE-and-OpenGL explains the differences and also has some recommendations on which version you should choose.
Hope it helps.
Saw this document, but hadn't got that it refers to versions. Once again thank you)
What do you mean by basic OpenGL ?
Qt allows you to setup your OpenGL environment and then you can use raw OpenGL functions. Qt also provides the QOpenGLFunctions_Y_X_Z classes which are wrappers around the corresponding OpenGL specification. By using these wrappers you're assured to not use functions from a later version of OpenGL.
Hope it helps