public Vector3f getSurfaceNormal(Vector3f position, Vector3f store) { return getSurfaceNormal(position.x, position.z, store); }
public Vector3f getSurfaceNormal(Vector2f position, Vector3f store) { return getSurfaceNormal(position.x, position.y, store); }
    public Vector3f getSurfaceNormal(Vector3f position, Vector3f store) {        return getSurfaceNormal(position.x, position.z, store);    }