public void DumpLOD()
 {
     LogManager.Instance.Write("TerrainPage({0}, {1})", pageCoord.X, pageCoord.Z);
     for (int z = 0; z < numTiles; z++)
     {
         for (int x = 0; x < numTiles; x++)
         {
             TerrainPatch patch = terrainPatches[x, z];
             LogManager.Instance.Write("  Patch({0}, {1})", x, z);
             patch.DumpLOD();
         }
     }
 }