OpenGL with Graphics View?

[wysota]

Or would I have to overpaint in a QGLWidget to do this and not use the graphics view framework?

You can make the QGLWidget a viewport of the graphicsview and then use pure GL calls inside the items' paint() routines to do the painting, that's not a problem. You can even mix GL and QPainter based items if you want. Either way be sure to draw in the right coordinates (remember about the bounding rect and transformations applied to items).