}
private static float[] createVertexNormalsArray() {
// throw new UnsupportedOperationException("not implemented yet");
List<Vector3f> normals = new ArrayList<Vector3f>(24);
Vector3f front = vec(0, 0, 1);
Vector3f back = vec(0, 0, -1);
Vector3f left = vec(-1, 0, 0);
Vector3f right = vec(1, 0, 0);
Vector3f top = vec(0, 1, 0);
Vector3f bottom = vec(0, -1, 0);
normals.add(front);
normals.add(front);
normals.add(front);
normals.add(front);
normals.add(front);