AnalyticalGraphicsInc/cesium — pull request #663 by bagnell (2013-04-19 18:33:27+00:00)
Title: Overlap Frustums

Overlap the near and far planes of consecutive frustums.

These are not cracks between tiles:
![image](https://f.cloud.github.com/assets/1494815/403431/81223d4a-a91f-11e2-8ab7-0a0e365db29d.png)