message: Resort to 4x splits
diff: @@ -485,14 +485,21 @@ struct renderer : viewer_type
  auto p010 = split(p01.first);
  auto p011 = split(p01.second);
  - curves.push_back(p000.first);
  - curves.push_back(p000.second);
  - curves.push_back(p001.first);
  - curves.push_back(p001.second);
  - curves.push_back(p010.first);
  - curves.push_back(p010.second);
  - curves.push_back(p011.first);
  - curves.push_back(p011.second);
  + // 4x
  + curves.push_back(p00.first);
  + curves.push_back(p00.second);
  + curves.push_back(p01.first);
  + curves.push_back(p01.second);
  +
  + // 8x
  + // curves.push_back(p000.first);
  + // curves.push_back(p000.second);
  + // curves.push_back(p001.first);
  + // curves.push_back(p001.second);
  + // curves.push_back(p010.first);
  + // curves.push_back(p010.second);
  + // curves.push_back(p011.first);
  + // curves.push_back(p011.second);
  }
  for (unsigned i = 0; i < curves.size(); ++i)
  