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. Author manuscript; available in PMC: 2011 Feb 1.
Published in final edited form as: Methods. 2009 Aug 5;50(2):70. doi: 10.1016/j.ymeth.2009.07.012

Fig. 2.

Fig. 2

Initial mesh with eight crease edges and a crease vertex (a), results after bi-linear sub-division (b), and centroid averaging (c), and after 2 (d), 3 (e) and 4 (f) subdivision iterations, respectively.