private bool LoadBrushSideLump(Q3BSPDirEntry dir, BinaryReader fileReader)
        {
            int brushSideCount = dir.Length / Q3BSPConstants.sizeBrushSide;

            brushSides = new Q3BSPBrushSide[brushSideCount];
            for (int i = 0; i < brushSideCount; i++)
            {
                brushSides[i] = Q3BSPBrushSide.FromStream(fileReader);
            }

            bspLogger.WriteLine("No of brushsides: " + brushSideCount);
            return(true);
        }