public ModelMatrixElement() {
   matrix = new Mat4f();
   matrix.makeIdent();
 }
 public ManipPartTransform() {
   super();
   offsetTransform = new Mat4f();
   offsetTransform.makeIdent();
 }
 /** Sets this element to the identity matrix. */
 public void makeEltIdent() {
   matrix.makeIdent();
 }