holmanelias/away3d-core-fp11 — pull request #2 by mziwisky (2013-09-04 16:40:09+00:00)
Title: Plane3D math fixes

Fixed some of the math of Plane3D -- mainly problems related to a false assumption that the normal vector, (a,b,c), would be unit length. Also improved performance by memoizing the inverse of the magnitude of the normal vector.