The original GLU Tessellator[1][2] used that structure for most of its internal representation of meshes, it's a very powerful data structure for meshes. [1] h

The original GLU Tessellator[1][2] used that structure for most of its internal representation of meshes, it's a very powerful data structure for meshes. [1] https://github.com/memononen/libtess2/blob/fc52516467dfa124bdd967c15c7cf9faf02a34ca/Source/mesh.h#L40 https://github.com/memononen/libtess2/blob/fc52516467dfa124b... [2] http://www.glprogramming.com/red/chapter11.html#name1 http://www.glprogramming.com/red/chapter11.html#name1