message: demo: Don't use vector<T>::data
  This is only available in C++11.
diff: @@ -340,7 +340,7 @@ void optCompleteSimplify(Mesh& mesh)
  for (size_t i = 0; i < lod_count; ++i)
  {
  - memcpy(&mesh.indices[lod_index_offsets[i]], lods[i].data(), lods[i].size() * sizeof(lods[i][0]));
  + memcpy(&mesh.indices[lod_index_offsets[i]], &lods[i][0], lods[i].size() * sizeof(lods[i][0]));
  }
  // vertex fetch optimization should go last as it depends on the final index order
  