While I got OpenGL transitions working under Gtk3 at the end of last year basically matching the Gtk2/Generic OpenGL quality the transition into and out of the OpenGL sequence wasn't very satisfying. And with access to HiDPI it was clearly even worse with an unscaled image momentarily appearing before the correct one.
So here's the before and after of the improvements that landed on upstream master today. Just screen-recordings with built in ctrl+shift+alt+t under gnome3 and positioned side by side and clipped roughly together in pitivi
