First version OpenGL drawing

main.cpp

@@ -1,8 +1,15 @@
 #include "mainwindow.h"
 #include <QApplication>
+#include <QSurfaceFormat>
 
 int main(int argc, char *argv[])
 {
+    QSurfaceFormat format;
+    format.setMajorVersion(3);
+    format.setMinorVersion(0);
+    format.setOption(QSurfaceFormat::DebugContext);
+    QSurfaceFormat::setDefaultFormat(format);
+
     QApplication a(argc, argv);
     a.setOrganizationName("nou");
     a.setApplicationName("Tenmon");