Minimal OpenGL Example in C++ Qt5, PyQt5 and TypeScript WebGL 1.0

• Added an example in WebGL 1.0 and TypeScript. Run in browser by one click: https://plnkr.co/edit/GRn9ADgJAJXnEoTF?open=main.ts&preview

If you want to start to learn Python I sagest to use PyQt5 and QtOpenGL together. OpenGL allows to create 2D/3D graphics and PyQt5 allows to create GUI elements. You can program simple games or create some interactive graphics applications. It is related to C++ and Qt5 too, and of course to another languages that you can use with OpenGL. I like, for example, WebGL and TypeScript/JavaScript. I wrote a simple example in PyQt5 where I just set a background color using OpenGL: https://rextester.com/SUEYYG2969​​

from PyQt5.QtWidgets import QApplication, QOpenGLWidget
from OpenGL import GL as gl
from PyQt5.QtCore import Qt

class Widget(QOpenGLWidget):
    def initializeGL(self):
        gl.glClearColor(0.5, 0.8, 0.7, 1.0)
    def resizeGL(self, w, h):
        gl.glViewport(0, 0, w, h)
    def paintGL(self):
        gl.glClear(gl.GL_COLOR_BUFFER_BIT)

def main():
    QApplication.setAttribute(Qt.AA_UseDesktopOpenGL)
    app = QApplication([])
    widget = Widget()
    widget.setWindowTitle("Minimal PyQt5 and OpenGL Example")
    widget.resize(400, 400)
    widget.show()
    app.exec_()

main()

C++ Qt5. I build it for Android and Desktop. Create a QWidget project without form and delete the Widget class. Add to .pro file: win32: LIBS += -lopengl32 I use #ifdef here to enable the second video card on notebook. Source Code: https://rextester.com/FXW78096​​

// Minimal OpenGL example that works on Notebook and Android
// Add to .pro file: win32: LIBS += -lopengl32

#ifdef _WIN32
#include <windows.h>
extern "C" __declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
extern "C" __declspec(dllexport) DWORD AmdPowerXpressRequestHighPerformance = 0x00000001;
#endif

#include <QApplication>
#include <QOpenGLWidget>

class Widget : public QOpenGLWidget {
    Q_OBJECT
public:
    Widget(QWidget *parent = nullptr) : QOpenGLWidget(parent) { }
private:
    void initializeGL() override {
        glClearColor(0.5f, 0.8f, 0.7f, 1.f);
    }
    void paintGL() override {
        glClear(GL_COLOR_BUFFER_BIT);
    }
    void resizeGL(int w, int h) override {
        glViewport(0, 0, w, h);
    }
};

#include "main.moc"

int main(int argc, char *argv[]) {
    QApplication a(argc, argv);
    Widget w;
    w.show();
    return a.exec();
}

The next example is in WebGL 1.0 and TypeScript. You can run it by one click in your browser: https://plnkr.co/edit/GRn9ADgJAJXnEoTF?open=main.ts&preview