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PolarNick239/marching_cubes_cases.cpp

Created June 18, 2018 17:21
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marching_cubes_cases.cpp
const int triangles[256][5*3+1] = {{ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},{ 0, 4, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 5, 0, 9, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 8, 9, 5, 8, 5, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 1, 5, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 0, 4, 8, 1, 5, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 9, 11, 1, 9, 1, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 8, 9, 11, 8, 11, 1, 8, 1, 4, -1, -1, -1, -1, -1, -1, -1},
{ 4, 1, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 10, 8, 0, 10, 0, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 5, 0, 9, 4, 1, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 10, 8, 9, 10, 9, 5, 10, 5, 1, -1, -1, -1, -1, -1, -1, -1},
{ 11, 10, 4, 11, 4, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 11, 10, 8, 11, 8, 0, 11, 0, 5, -1, -1, -1, -1, -1, -1, -1},
{ 9, 11, 10, 9, 10, 4, 9, 4, 0, -1, -1, -1, -1, -1, -1, -1},
{ 8, 9, 11, 8, 11, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 8, 6, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 6, 2, 0, 4, 6, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 6, 2, 8, 5, 0, 9, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 5, 4, 6, 9, 5, 6, 2, 9, 6, -1, -1, -1, -1, -1, -1, -1},
{ 1, 5, 11, 8, 6, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 1, 5, 11, 6, 2, 0, 4, 6, 0, -1, -1, -1, -1, -1, -1, -1},
{ 6, 2, 8, 9, 11, 1, 9, 1, 0, -1, -1, -1, -1, -1, -1, -1},
{ 9, 11, 2, 2, 11, 1, 2, 1, 6, 6, 1, 4, -1, -1, -1, -1},
{ 1, 10, 4, 2, 8, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 2, 0, 1, 6, 2, 1, 10, 6, 1, -1, -1, -1, -1, -1, -1, -1},
{ 5, 0, 9, 4, 1, 10, 8, 6, 2, -1, -1, -1, -1, -1, -1, -1},
{ 5, 2, 9, 5, 6, 2, 5, 1, 6, 1, 10, 6, -1, -1, -1, -1},
{ 2, 8, 6, 4, 5, 11, 4, 11, 10, -1, -1, -1, -1, -1, -1, -1},
{ 5, 2, 0, 6, 2, 5, 11, 6, 5, 10, 6, 11, -1, -1, -1, -1},
{ 9, 11, 10, 9, 10, 4, 9, 4, 0, 8, 6, 2, -1, -1, -1, -1},
{ 9, 11, 2, 2, 11, 6, 10, 6, 11, -1, -1, -1, -1, -1, -1, -1},
{ 9, 2, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 7, 9, 2, 4, 8, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 0, 2, 7, 0, 7, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 7, 5, 4, 2, 7, 4, 8, 2, 4, -1, -1, -1, -1, -1, -1, -1},
{ 7, 9, 2, 5, 11, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 1, 5, 11, 0, 4, 8, 9, 2, 7, -1, -1, -1, -1, -1, -1, -1},
{ 1, 0, 2, 1, 2, 7, 1, 7, 11, -1, -1, -1, -1, -1, -1, -1},
{ 1, 7, 11, 1, 2, 7, 1, 4, 2, 4, 8, 2, -1, -1, -1, -1},
{ 4, 1, 10, 9, 2, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 7, 9, 2, 0, 1, 10, 0, 10, 8, -1, -1, -1, -1, -1, -1, -1},
{ 4, 1, 10, 2, 7, 5, 0, 2, 5, -1, -1, -1, -1, -1, -1, -1},
{ 2, 10, 8, 1, 10, 2, 7, 1, 2, 5, 1, 7, -1, -1, -1, -1},
{ 7, 9, 2, 10, 4, 5, 11, 10, 5, -1, -1, -1, -1, -1, -1, -1},
{ 11, 10, 8, 11, 8, 0, 11, 0, 5, 9, 2, 7, -1, -1, -1, -1},
{ 11, 10, 7, 7, 10, 4, 7, 4, 2, 2, 4, 0, -1, -1, -1, -1},
{ 11, 10, 7, 7, 10, 2, 8, 2, 10, -1, -1, -1, -1, -1, -1, -1},
{ 7, 9, 8, 6, 7, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 4, 6, 7, 0, 4, 7, 9, 0, 7, -1, -1, -1, -1, -1, -1, -1},
{ 6, 7, 5, 8, 6, 5, 0, 8, 5, -1, -1, -1, -1, -1, -1, -1},
{ 4, 6, 7, 5, 4, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 5, 11, 1, 8, 6, 7, 9, 8, 7, -1, -1, -1, -1, -1, -1, -1},
{ 4, 6, 7, 0, 4, 7, 9, 0, 7, 11, 1, 5, -1, -1, -1, -1},
{ 8, 1, 0, 11, 1, 8, 6, 11, 8, 7, 11, 6, -1, -1, -1, -1},
{ 11, 6, 7, 1, 6, 11, 6, 1, 4, -1, -1, -1, -1, -1, -1, -1},
{ 1, 10, 4, 6, 7, 9, 6, 9, 8, -1, -1, -1, -1, -1, -1, -1},
{ 0, 1, 9, 9, 1, 10, 9, 10, 7, 7, 10, 6, -1, -1, -1, -1},
{ 6, 7, 5, 8, 6, 5, 0, 8, 5, 1, 10, 4, -1, -1, -1, -1},
{ 1, 7, 5, 10, 7, 1, 7, 10, 6, -1, -1, -1, -1, -1, -1, -1},
{ 11, 10, 4, 11, 4, 5, 7, 9, 8, 6, 7, 8, -1, -1, -1, -1},
{ 0, 6, 9, 9, 6, 7, 6, 0, 5, 5, 11, 10, 5, 10, 6, -1},
{ 8, 7, 0, 6, 7, 8, 4, 0, 7, 11, 10, 4, 7, 11, 4, -1},
{ 11, 10, 6, 11, 6, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 11, 7, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 0, 4, 8, 11, 7, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 9, 5, 0, 11, 7, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 11, 7, 3, 4, 8, 9, 5, 4, 9, -1, -1, -1, -1, -1, -1, -1},
{ 3, 1, 5, 3, 5, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 0, 4, 8, 7, 3, 1, 5, 7, 1, -1, -1, -1, -1, -1, -1, -1},
{ 3, 1, 0, 3, 0, 9, 3, 9, 7, -1, -1, -1, -1, -1, -1, -1},
{ 7, 8, 9, 4, 8, 7, 3, 4, 7, 1, 4, 3, -1, -1, -1, -1},
{ 1, 10, 4, 3, 11, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 3, 11, 7, 8, 0, 1, 10, 8, 1, -1, -1, -1, -1, -1, -1, -1},
{ 4, 1, 10, 5, 0, 9, 11, 7, 3, -1, -1, -1, -1, -1, -1, -1},
{ 10, 8, 9, 10, 9, 5, 10, 5, 1, 11, 7, 3, -1, -1, -1, -1},
{ 4, 5, 7, 4, 7, 3, 4, 3, 10, -1, -1, -1, -1, -1, -1, -1},
{ 10, 8, 3, 3, 8, 0, 3, 0, 7, 7, 0, 5, -1, -1, -1, -1},
{ 4, 3, 10, 4, 7, 3, 4, 0, 7, 0, 9, 7, -1, -1, -1, -1},
{ 10, 8, 3, 3, 8, 7, 9, 7, 8, -1, -1, -1, -1, -1, -1, -1},
{ 11, 7, 3, 8, 6, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 11, 7, 3, 2, 0, 4, 2, 4, 6, -1, -1, -1, -1, -1, -1, -1},
{ 11, 7, 3, 8, 6, 2, 5, 0, 9, -1, -1, -1, -1, -1, -1, -1},
{ 5, 4, 6, 9, 5, 6, 2, 9, 6, 3, 11, 7, -1, -1, -1, -1},
{ 8, 6, 2, 3, 1, 5, 3, 5, 7, -1, -1, -1, -1, -1, -1, -1},
{ 3, 1, 5, 3, 5, 7, 6, 2, 0, 4, 6, 0, -1, -1, -1, -1},
{ 3, 1, 0, 3, 0, 9, 3, 9, 7, 2, 8, 6, -1, -1, -1, -1},
{ 9, 4, 2, 2, 4, 6, 4, 9, 7, 7, 3, 1, 7, 1, 4, -1},
{ 8, 6, 2, 11, 7, 3, 4, 1, 10, -1, -1, -1, -1, -1, -1, -1},
{ 2, 0, 1, 6, 2, 1, 10, 6, 1, 11, 7, 3, -1, -1, -1, -1},
{ 5, 0, 9, 4, 1, 10, 8, 6, 2, 11, 7, 3, -1, -1, -1, -1},
{ 11, 7, 3, 5, 2, 9, 5, 6, 2, 5, 1, 6, 1, 10, 6, -1},
{ 4, 5, 7, 4, 7, 3, 4, 3, 10, 6, 2, 8, -1, -1, -1, -1},
{ 10, 5, 3, 3, 5, 7, 5, 10, 6, 6, 2, 0, 6, 0, 5, -1},
{ 8, 6, 2, 4, 3, 10, 4, 7, 3, 4, 0, 7, 0, 9, 7, -1},
{ 9, 7, 10, 10, 7, 3, 10, 6, 9, 6, 2, 9, -1, -1, -1, -1},
{ 3, 11, 9, 2, 3, 9, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 4, 8, 0, 2, 3, 11, 2, 11, 9, -1, -1, -1, -1, -1, -1, -1},
{ 0, 2, 3, 0, 3, 11, 0, 11, 5, -1, -1, -1, -1, -1, -1, -1},
{ 2, 3, 8, 8, 3, 11, 8, 11, 4, 4, 11, 5, -1, -1, -1, -1},
{ 2, 3, 1, 2, 1, 5, 2, 5, 9, -1, -1, -1, -1, -1, -1, -1},
{ 2, 3, 1, 2, 1, 5, 2, 5, 9, 0, 4, 8, -1, -1, -1, -1},
{ 0, 2, 3, 0, 3, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 2, 3, 8, 8, 3, 4, 1, 4, 3, -1, -1, -1, -1, -1, -1, -1},
{ 1, 10, 4, 9, 2, 3, 11, 9, 3, -1, -1, -1, -1, -1, -1, -1},
{ 10, 8, 0, 10, 0, 1, 3, 11, 9, 2, 3, 9, -1, -1, -1, -1},
{ 0, 2, 3, 0, 3, 11, 0, 11, 5, 1, 10, 4, -1, -1, -1, -1},
{ 5, 2, 11, 11, 2, 3, 2, 5, 1, 1, 10, 8, 1, 8, 2, -1},
{ 10, 2, 3, 9, 2, 10, 4, 9, 10, 5, 9, 4, -1, -1, -1, -1},
{ 5, 10, 0, 0, 10, 8, 10, 5, 9, 9, 2, 3, 9, 3, 10, -1},
{ 0, 2, 4, 4, 2, 10, 3, 10, 2, -1, -1, -1, -1, -1, -1, -1},
{ 10, 8, 2, 10, 2, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 11, 9, 8, 3, 11, 8, 6, 3, 8, -1, -1, -1, -1, -1, -1, -1},
{ 0, 11, 9, 3, 11, 0, 4, 3, 0, 6, 3, 4, -1, -1, -1, -1},
{ 11, 5, 3, 5, 0, 3, 0, 6, 3, 0, 8, 6, -1, -1, -1, -1},
{ 3, 4, 6, 11, 4, 3, 4, 11, 5, -1, -1, -1, -1, -1, -1, -1},
{ 3, 1, 6, 6, 1, 5, 6, 5, 8, 8, 5, 9, -1, -1, -1, -1},
{ 0, 6, 9, 4, 6, 0, 5, 9, 6, 3, 1, 5, 6, 3, 5, -1},
{ 3, 1, 6, 6, 1, 8, 0, 8, 1, -1, -1, -1, -1, -1, -1, -1},
{ 3, 1, 4, 3, 4, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 11, 9, 8, 3, 11, 8, 6, 3, 8, 4, 1, 10, -1, -1, -1, -1},
{ 3, 9, 6, 11, 9, 3, 10, 6, 9, 0, 1, 10, 9, 0, 10, -1},
{ 4, 1, 10, 11, 5, 3, 5, 0, 3, 0, 6, 3, 0, 8, 6, -1},
{ 5, 10, 6, 1, 10, 5, 6, 11, 5, 6, 3, 11, -1, -1, -1, -1},
{ 10, 5, 3, 4, 5, 10, 6, 3, 5, 9, 8, 6, 5, 9, 6, -1},
{ 6, 3, 10, 9, 0, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 3, 10, 0, 0, 10, 4, 0, 8, 3, 8, 6, 3, -1, -1, -1, -1},
{ 6, 3, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 10, 3, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 3, 6, 10, 0, 4, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 5, 0, 9, 10, 3, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 3, 6, 10, 8, 9, 5, 8, 5, 4, -1, -1, -1, -1, -1, -1, -1},
{ 11, 1, 5, 10, 3, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 0, 4, 8, 1, 5, 11, 10, 3, 6, -1, -1, -1, -1, -1, -1, -1},
{ 10, 3, 6, 0, 9, 11, 1, 0, 11, -1, -1, -1, -1, -1, -1, -1},
{ 8, 9, 11, 8, 11, 1, 8, 1, 4, 10, 3, 6, -1, -1, -1, -1},
{ 4, 1, 3, 6, 4, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 0, 1, 3, 8, 0, 3, 6, 8, 3, -1, -1, -1, -1, -1, -1, -1},
{ 5, 0, 9, 3, 6, 4, 1, 3, 4, -1, -1, -1, -1, -1, -1, -1},
{ 8, 9, 6, 6, 9, 5, 6, 5, 3, 3, 5, 1, -1, -1, -1, -1},
{ 6, 4, 5, 6, 5, 11, 6, 11, 3, -1, -1, -1, -1, -1, -1, -1},
{ 0, 6, 8, 0, 3, 6, 0, 5, 3, 5, 11, 3, -1, -1, -1, -1},
{ 3, 9, 11, 0, 9, 3, 6, 0, 3, 4, 0, 6, -1, -1, -1, -1},
{ 8, 9, 6, 6, 9, 3, 11, 3, 9, -1, -1, -1, -1, -1, -1, -1},
{ 2, 8, 10, 3, 2, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 3, 2, 0, 10, 3, 0, 4, 10, 0, -1, -1, -1, -1, -1, -1, -1},
{ 5, 0, 9, 8, 10, 3, 8, 3, 2, -1, -1, -1, -1, -1, -1, -1},
{ 9, 3, 2, 10, 3, 9, 5, 10, 9, 4, 10, 5, -1, -1, -1, -1},
{ 11, 1, 5, 2, 8, 10, 3, 2, 10, -1, -1, -1, -1, -1, -1, -1},
{ 3, 2, 0, 10, 3, 0, 4, 10, 0, 5, 11, 1, -1, -1, -1, -1},
{ 9, 11, 1, 9, 1, 0, 2, 8, 10, 3, 2, 10, -1, -1, -1, -1},
{ 10, 2, 4, 3, 2, 10, 1, 4, 2, 9, 11, 1, 2, 9, 1, -1},
{ 1, 3, 2, 4, 1, 2, 8, 4, 2, -1, -1, -1, -1, -1, -1, -1},
{ 0, 1, 3, 2, 0, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 1, 3, 2, 4, 1, 2, 8, 4, 2, 9, 5, 0, -1, -1, -1, -1},
{ 9, 3, 2, 5, 3, 9, 3, 5, 1, -1, -1, -1, -1, -1, -1, -1},
{ 3, 2, 11, 11, 2, 8, 11, 8, 5, 5, 8, 4, -1, -1, -1, -1},
{ 5, 2, 0, 11, 2, 5, 2, 11, 3, -1, -1, -1, -1, -1, -1, -1},
{ 4, 3, 8, 8, 3, 2, 3, 4, 0, 0, 9, 11, 0, 11, 3, -1},
{ 9, 11, 3, 9, 3, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 10, 3, 6, 9, 2, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 9, 2, 7, 10, 3, 6, 0, 4, 8, -1, -1, -1, -1, -1, -1, -1},
{ 10, 3, 6, 7, 5, 0, 7, 0, 2, -1, -1, -1, -1, -1, -1, -1},
{ 7, 5, 4, 2, 7, 4, 8, 2, 4, 10, 3, 6, -1, -1, -1, -1},
{ 10, 3, 6, 9, 2, 7, 1, 5, 11, -1, -1, -1, -1, -1, -1, -1},
{ 10, 3, 6, 9, 2, 7, 1, 5, 11, 0, 4, 8, -1, -1, -1, -1},
{ 1, 0, 2, 1, 2, 7, 1, 7, 11, 3, 6, 10, -1, -1, -1, -1},
{ 10, 3, 6, 1, 7, 11, 1, 2, 7, 1, 4, 2, 4, 8, 2, -1},
{ 9, 2, 7, 6, 4, 1, 6, 1, 3, -1, -1, -1, -1, -1, -1, -1},
{ 0, 1, 3, 8, 0, 3, 6, 8, 3, 7, 9, 2, -1, -1, -1, -1},
{ 0, 2, 7, 0, 7, 5, 4, 1, 3, 6, 4, 3, -1, -1, -1, -1},
{ 2, 5, 8, 7, 5, 2, 6, 8, 5, 1, 3, 6, 5, 1, 6, -1},
{ 6, 4, 5, 6, 5, 11, 6, 11, 3, 7, 9, 2, -1, -1, -1, -1},
{ 9, 2, 7, 0, 6, 8, 0, 3, 6, 0, 5, 3, 5, 11, 3, -1},
{ 3, 4, 11, 6, 4, 3, 7, 11, 4, 0, 2, 7, 4, 0, 7, -1},
{ 11, 3, 8, 8, 3, 6, 8, 2, 11, 2, 7, 11, -1, -1, -1, -1},
{ 9, 8, 10, 7, 9, 10, 3, 7, 10, -1, -1, -1, -1, -1, -1, -1},
{ 9, 0, 7, 0, 4, 7, 4, 3, 7, 4, 10, 3, -1, -1, -1, -1},
{ 8, 10, 0, 0, 10, 3, 0, 3, 5, 5, 3, 7, -1, -1, -1, -1},
{ 10, 5, 4, 3, 5, 10, 5, 3, 7, -1, -1, -1, -1, -1, -1, -1},
{ 9, 8, 10, 7, 9, 10, 3, 7, 10, 1, 5, 11, -1, -1, -1, -1},
{ 1, 5, 11, 9, 0, 7, 0, 4, 7, 4, 3, 7, 4, 10, 3, -1},
{ 11, 0, 7, 1, 0, 11, 3, 7, 0, 8, 10, 3, 0, 8, 3, -1},
{ 7, 1, 4, 11, 1, 7, 4, 3, 7, 4, 10, 3, -1, -1, -1, -1},
{ 4, 9, 8, 7, 9, 4, 1, 7, 4, 3, 7, 1, -1, -1, -1, -1},
{ 7, 1, 3, 9, 1, 7, 1, 9, 0, -1, -1, -1, -1, -1, -1, -1},
{ 8, 7, 0, 0, 7, 5, 7, 8, 4, 4, 1, 3, 4, 3, 7, -1},
{ 5, 1, 3, 7, 5, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 3, 4, 11, 11, 4, 5, 4, 3, 7, 7, 9, 8, 7, 8, 4, -1},
{ 3, 9, 0, 7, 9, 3, 0, 11, 3, 0, 5, 11, -1, -1, -1, -1},
{ 3, 7, 11, 8, 4, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 3, 7, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 6, 10, 11, 7, 6, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 0, 4, 8, 10, 11, 7, 10, 7, 6, -1, -1, -1, -1, -1, -1, -1},
{ 9, 5, 0, 6, 10, 11, 7, 6, 11, -1, -1, -1, -1, -1, -1, -1},
{ 8, 9, 5, 8, 5, 4, 6, 10, 11, 7, 6, 11, -1, -1, -1, -1},
{ 5, 7, 6, 5, 6, 10, 5, 10, 1, -1, -1, -1, -1, -1, -1, -1},
{ 5, 7, 6, 5, 6, 10, 5, 10, 1, 4, 8, 0, -1, -1, -1, -1},
{ 1, 0, 10, 10, 0, 9, 10, 9, 6, 6, 9, 7, -1, -1, -1, -1},
{ 1, 7, 10, 10, 7, 6, 7, 1, 4, 4, 8, 9, 4, 9, 7, -1},
{ 7, 6, 4, 7, 4, 1, 7, 1, 11, -1, -1, -1, -1, -1, -1, -1},
{ 11, 0, 1, 8, 0, 11, 7, 8, 11, 6, 8, 7, -1, -1, -1, -1},
{ 7, 6, 4, 7, 4, 1, 7, 1, 11, 5, 0, 9, -1, -1, -1, -1},
{ 11, 6, 1, 7, 6, 11, 5, 1, 6, 8, 9, 5, 6, 8, 5, -1},
{ 4, 5, 7, 4, 7, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 5, 7, 0, 0, 7, 8, 6, 8, 7, -1, -1, -1, -1, -1, -1, -1},
{ 7, 6, 9, 9, 6, 0, 4, 0, 6, -1, -1, -1, -1, -1, -1, -1},
{ 8, 9, 7, 8, 7, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 8, 10, 11, 2, 8, 11, 7, 2, 11, -1, -1, -1, -1, -1, -1, -1},
{ 10, 11, 4, 4, 11, 7, 4, 7, 0, 0, 7, 2, -1, -1, -1, -1},
{ 8, 10, 11, 2, 8, 11, 7, 2, 11, 5, 0, 9, -1, -1, -1, -1},
{ 9, 4, 2, 5, 4, 9, 7, 2, 4, 10, 11, 7, 4, 10, 7, -1},
{ 1, 8, 10, 2, 8, 1, 5, 2, 1, 7, 2, 5, -1, -1, -1, -1},
{ 1, 7, 10, 5, 7, 1, 4, 10, 7, 2, 0, 4, 7, 2, 4, -1},
{ 7, 1, 9, 9, 1, 0, 1, 7, 2, 2, 8, 10, 2, 10, 1, -1},
{ 7, 2, 9, 10, 1, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 8, 4, 2, 4, 1, 2, 1, 7, 2, 1, 11, 7, -1, -1, -1, -1},
{ 11, 0, 1, 7, 0, 11, 0, 7, 2, -1, -1, -1, -1, -1, -1, -1},
{ 5, 0, 9, 8, 4, 2, 4, 1, 2, 1, 7, 2, 1, 11, 7, -1},
{ 2, 5, 1, 9, 5, 2, 1, 7, 2, 1, 11, 7, -1, -1, -1, -1},
{ 4, 5, 8, 8, 5, 2, 7, 2, 5, -1, -1, -1, -1, -1, -1, -1},
{ 7, 2, 0, 5, 7, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 7, 2, 4, 4, 2, 8, 4, 0, 7, 0, 9, 7, -1, -1, -1, -1},
{ 7, 2, 9, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 10, 11, 9, 6, 10, 9, 2, 6, 9, -1, -1, -1, -1, -1, -1, -1},
{ 10, 11, 9, 6, 10, 9, 2, 6, 9, 0, 4, 8, -1, -1, -1, -1},
{ 5, 10, 11, 6, 10, 5, 0, 6, 5, 2, 6, 0, -1, -1, -1, -1},
{ 2, 5, 8, 8, 5, 4, 5, 2, 6, 6, 10, 11, 6, 11, 5, -1},
{ 10, 1, 6, 1, 5, 6, 5, 2, 6, 5, 9, 2, -1, -1, -1, -1},
{ 0, 4, 8, 10, 1, 6, 1, 5, 6, 5, 2, 6, 5, 9, 2, -1},
{ 1, 0, 10, 10, 0, 6, 2, 6, 0, -1, -1, -1, -1, -1, -1, -1},
{ 2, 6, 1, 1, 6, 10, 1, 4, 2, 4, 8, 2, -1, -1, -1, -1},
{ 11, 9, 1, 1, 9, 2, 1, 2, 4, 4, 2, 6, -1, -1, -1, -1},
{ 8, 1, 6, 0, 1, 8, 2, 6, 1, 11, 9, 2, 1, 11, 2, -1},
{ 11, 6, 1, 1, 6, 4, 6, 11, 5, 5, 0, 2, 5, 2, 6, -1},
{ 2, 6, 8, 11, 5, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 6, 4, 2, 2, 4, 9, 5, 9, 4, -1, -1, -1, -1, -1, -1, -1},
{ 5, 9, 6, 6, 9, 2, 6, 8, 5, 8, 0, 5, -1, -1, -1, -1},
{ 0, 2, 6, 0, 6, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 2, 6, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 8, 10, 11, 9, 8, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 0, 11, 9, 4, 11, 0, 11, 4, 10, -1, -1, -1, -1, -1, -1, -1},
{ 5, 10, 11, 0, 10, 5, 10, 0, 8, -1, -1, -1, -1, -1, -1, -1},
{ 4, 10, 11, 5, 4, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 1, 8, 10, 5, 8, 1, 8, 5, 9, -1, -1, -1, -1, -1, -1, -1},
{ 9, 4, 10, 0, 4, 9, 10, 5, 9, 10, 1, 5, -1, -1, -1, -1},
{ 0, 8, 10, 1, 0, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 10, 1, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 4, 9, 8, 1, 9, 4, 9, 1, 11, -1, -1, -1, -1, -1, -1, -1},
{ 1, 11, 9, 0, 1, 9, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 11, 0, 8, 5, 0, 11, 8, 1, 11, 8, 4, 1, -1, -1, -1, -1},
{ 11, 5, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 5, 9, 8, 4, 5, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 9, 0, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ 8, 4, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1},
{ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}
};
/*
* Source: https://github.com/mkazhdan/PoissonRecon/blob/16375a78928bd67b4cad1a410131f4b5f0afabde/Src/MarchingCubes.cpp#L528
*
* [0]---------------[1] o-------[0]-------o
* /| /| /| /|
* / | / | / | / |
* / | / | [4] | [5] |
* / | / | / [8] / [9]
* / | / | / | / |
* [3]---------------[2] | o-------[1]-------o |
* | | | | | | | |
* | [4]----------|----[5] | o-------[2]-|-----o
* | / | / | / | /
* | / | / [10] / [11] /
* | / | / | [6] | [7]
* | / | / | / | /
* |/ |/ |/ |/
* [7]---------------[6] o-------[3]-------o
*/
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