FIGURE 15 - The non-manifold issie caused by Chernyaev’s lookup table. Left: The zero level-set of a 5x5x5 randomly generated piecewise-trilinear scalar field, from the same data used in the Figure 1. Middle: The mesh generated by an implementation of the Marching Cubes 33 algorithm. The mesh has two non-manifold edges caused by the triangulation proposed by Chernyeav in his work. Right: The mesh generated by our package. In our implementation was included the solution proposed by Custodio et al. to fix the non-manifold problem.