@Override
    protected void serialize(int i, Vector3f store) {
        int j = i*getTupleSize();
        array[j] = store.getX();
        array[j+1] = store.getY();
        array[j+2] = store.getZ();
    }
creates a compact vector array
@param dataArray the data array
@param index the indices
jme3-core/src/main/java/com/jme3/animation/CompactVector3Array.java