mrdoob/three.js — pull request #5156 by erich666 (2014-07-31 14:10:05+00:00)
Title: Demos with ground planes have consistent up

Give the demos with ground planes of some sort a consistent "up" direction for the camera, instead of having rotation be able to change this. Simple change: Trackball to OrbitControls. This looks much better, the ground doesn't rotate to be sideways or above the viewer.