Changelist 18715:

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]

Currently makes a number of broad assumptions about timing, so depending on the scene it'll be reasonably centered vertically, or it might scroll uncontrollably as if there's bad vsync.