Hi, I found the solution now. The only change needed was in the main window constructor:
Code: MainWindow::MainWindow(QWidget *parent) :QMainWindow(parent) { QGLFormat f; f.setAlpha( true ); //enables alpha channel for this format QGLFormat::setDefaultFormat( f ); //set it as default before instantiations setupUi(this); //instantiates QGLWidget (ViewerQT) //other code } Thank you! Cheers, Dženan ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=30795#30795 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org