Our reliance on the old QGLWidget has been somewhat of a stumbling block now that the renderer is starting to embrace FBOs and other modern day OpenGL concepts. Fortunately, Qt 5.4 now offers a new way to manage the OpenGL surface in a way that is more compatible with OpenGL 3+ and the Core profile. Furthermore, since Doomsday doesn’t need the OpenGL surface to be an actual QWidget, it will save resources not having to treat it as one. Continue reading OpenGL Window