mrdoob/three.js — pull request #4567 by richtr (2014-03-12 14:37:59+00:00)
Title: DeviceOrientationControls.js updates

Minor optimizations to DeviceOrientationControls.js including:

* making `_rotationMatrix` private.
* optimizing to avoid subroutine execution.
* optimizing to avoid unnecessary garbage collection.
* generally improving code layout + presentation.