AnalyticalGraphicsInc/cesium — pull request #1370 by bagnell (2014-01-07 20:55:25+00:00)
Title: Fast SLERP

Implements the algorithm from [A Fast and Accurate Algorithm for Computing SLERP](http://www.tandfonline.com/doi/abs/10.1080/2151237X.2011.610255#.UsxYrPROLnF) by David Eberly.

The performance in Chrome is about 50% faster. For Firefox, its only slightly faster.