Scene graphs in user interfaces

[Zenaan Harkness <zen freedbms net>]

Hi, I just read the recent 2013-08-14 LWN article:
http://lwn.net/Articles/562856/
in particular regarding Clutter, a scene-graph canvas, and the calls
over the years to merge Clutter with GTK.

This motivated me to read the linked wikipedia page:
http://en.wikipedia.org/wiki/Scene_graph

and, in particular, to add the section "Scene graphs in user interfaces":
http://en.wikipedia.org/wiki/Scene_graph#Scene_graphs_in_user_interfaces
which is currently primarily a list of various canvas libraries.

My hope is to raise awareness of the alternatives, to make it easy for
future canvas and UI scene-graph hackers to appraise themselves of
what's already available.

Of note to my mind is Evas:
http://docs.enlightenment.org/auto/evas/

which appears surprisingly simple in its API, yet enough for UI
building, and is a scene-graph with all sorts of benefits that
entails, and given the design decisions made with Evas in particular.

I hope the starting list of canvas's at wikipedia is useful. Dunno if
there's an appropriate QT -dev list to forward this email to, or if
there might be some cross-project mutual interest between qt/gtk/evas.

Regards
Zenaan