mrdoob/three.js — pull request #3518 by crobi (2013-05-26 15:20:48+00:00)
Title: Fix SkinnedMesh so that it can be used with BufferGeometry

THREE.SkinnedMesh previously assumed its geometry was an instance of THREE.Geometry while normalizing skinning weights

See also https://github.com/mrdoob/three.js/issues/3510