warp.hash\_grid\_point\_id
==========================

.. function:: warp._src.lang.hash_grid_point_id(id: uint64, index: int32) -> int

   .. hlist::
      :columns: 8

      * Kernel

   Query the index of a point in the :class:`warp.HashGrid`.
   
   This can be used to reorder threads such that grid traversal occurs in a spatially coherent order.
   
   :returns: -1 if the :class:`warp.HashGrid` has not been reserved.