Fig. 14
From: An extended triangulation to the Marching Cubes 33 algorithm
Orange meshes represent the behavior of the trilinear interpolant in the Marching Cubes cases: 7.4.2, 10.1.2, 12.1.2, and 13.5.2. The green meshes are the triangulation proposed by Chernyaev to approximate the isosurface inside the cube in each case. a Case 7.4.2, b case 10.1.2, c case 12.1.2, and d case 13.5.2