Computing the 3D convex hull

As a new optional functionality of the OFF to VRML converter, I coded the extraction of the convex hull of a 3D shape based on the implementation of the incremental algorithm proposed by O'Rourke in "Computational Geometry in C". Despite the clear explanation of the algorithm and included code, it took me some time to adapt it to the data structure I am using. However, the expected result were achieved.

3D model and corresponding convex hull.