warp.fem.node_inner_weight_gradient

warp.fem.node_inner_weight_gradient = <warp._src.fem.operator.Operator object>

Returns the gradient (w.r.t world coordinates) of the inner element weight associated to a local node of the field f at the sample point s.

If f is a discrete field, node_index_in_elt is required and indicates the element-local index of the node to consider. If f is a Test or Trial field, node_index_in_elt must not be provided, and will be automatically set to the test (resp. trial) node currently being evaluated.