Move all the entities into the scene, since the scene will be created in a different thread.
Move all the entities into the scene, since the scene will be created in a different thread.
Make the sector radius 2 when we're zoomed out, so you don't get stuff popping in and out.
Added an explicit dispose to the whole scene when we recreate it. For Issue #18.
Dispose in other places. Also add a log line to log how long the scene takes to render.