AnalyticalGraphicsInc/cesium — pull request #682 by kring (2013-04-23 17:16:42+00:00)
Title: Horizon culling cleanup

Change the code slightly to match the horizon culling blog article.

Let's not merge this until that blog is up, at which point I'll update the URL to it in the code. I'm opening it now because otherwise I'll probably forget to do this at all.