Here are a few images of models and the results of the Loop and butterfly subdivision. Note that the Loop subdivision surfaces will generally appear smooth but may shrink a little bit. The butterfly subdivision will not shrink, but will be of poorer quality, especially if there are a lot of vertices of low degree and high degree in the mesh (Butterfly is smooth only for degrees between 4 and 7). Other reasonable input files are the pawn, pig and shark from project 2.

RESULTS FOR HORSE200:

Original:


Loop iterated 4 times:


Butterfly iterated 4 times:



RESULTS FOR RABBIT100:

Original:


Loop iterated 4 times:


Butterfly iterated 4 times:



RESULTS FOR OCTAHEDRON:

Original:


Loop iterated 4 times:


Butterfly iterated 4 times:



RESULTS FOR SMALL_TORUS:

Original:


Loop iterated 4 times:


Butterfly iterated 4 times:



RESULTS FOR SHAPE:

Original:


Loop iterated 2 times:


Butterfly iterated 2 times: