Class Crease

tutorials/common/scenegraph/obj_loader.cpp:17–22

  };

  struct Crease {
    float w;
    unsigned int a, b;
    Crease() : w(0), a(-1), b(-1) {};
    Crease(float w, unsigned int a, unsigned int b) : w(w), a(a), b(b) {};
  };

  static inline bool operator < ( const Vertex& a, const Vertex& b ) {
    if (a.v  != b.v)  return a.v  < b.v;