AnalyticalGraphicsInc/cesium — pull request #1018 by kring (2013-08-06 21:58:41+00:00)
Title: Fixes #1016, broken ellipsoid rendering in Columbus View

Dan previously disabled depth testing when using the `EllipsoidTerrainProvider` in Columbus View in order to keep primitives on the surface from depth-fighting. This caused the skirts around terrain tiles to become visible. The correct fix is to clear depth after rendering terrain in CV like we were already doing in 3D.