anchor.diff:        }
       }
       if (wrapped) {
  -      assert(_faces4.length == w * h);
  +      assert(_faces4.length == w * h, "face4 length mismatch");
       }
     }
   
  
positive.code:     }
    }
  
    void AddVertex(VM.Vector3 v) {
      vertices.add(v.clone());
    }
  
negative.code:         uvs.add(VM.Vector2(y / (h - 1), x / (w - 1)));
        }
      }
      assert(uvs.length == w * h, "grid uvs lengths mismatch");
    }
  
    void GenerateRegularGridFaces(int w, int h, bool wrapped) {
  