static public void InitLuminance(TileManager tileManager)
        {
            for (int x = 0; x < tileManager.sizeX; x++)
            {
                for (int y = 0; y < tileManager.sizeY; y++)
                {
                    for (int z = 0; z < tileManager.sizeZ; z++)
                    {
                        TilePosition pos = new TilePosition(x, y, z);
                        if (tileManager.GetTileLightSource(pos))
                            pendingUpdateLights.Add(PositionToInt(x, y, z));
                    }
                }
            }

            UpdateLuminanceLightVector(tileManager);
        }