small refactoring of OcTree to simply change the intersection test function during construction. This allows to choose between accurate or fast functions.
OcTree is working now. Only included the static geometry at the moment. Can now ray cast into the scene.
I'm applying the same animation matrix to the normals (with 0.0 as w component of the vec4 as this is a vector not a point).
Upon closer inspection the main problem seems to be in the fold of the book. Here both joints of the opening halfs are applied. Maybe that causes problems as the cancel each other out.