warp.volume\_sample\_grad
=========================

.. function:: warp._src.lang.volume_sample_grad(id: uint64, uvw: vec3f, sampling_mode: int32, grad: Any, dtype: Any) -> Any

   .. hlist::
      :columns: 8

      * Kernel
      * Differentiable

   Sample the volume given by ``id`` and its gradient at the volume local-space point ``uvw``.
   
   Interpolation should be :attr:`warp.Volume.CLOSEST` or :attr:`warp.Volume.LINEAR`.