private void EnqueueClose(bool clipmapUpdate) { if (EnvironmentSector.IsClosed) { return; } Debug.Assert(m_closed); if (clipmapUpdate) { Debug.Assert(m_manager.ActiveFace == Face); m_manager.EnqueueOperation(this, -1, !m_split); LodSet = -1; } else { Debug.Assert(m_manager.ActiveFace != Face); EnvironmentSector.SetLod(-1); LodSet = -1; if (!m_split) { m_manager.CheckOnGraphicsClose(EnvironmentSector); } } }