Returns an array of the point/primitive numbers of the neighbours of a point/primitive.
2 distinct advantages of these VOPs over the default Neighbours VOP, apart from lack of a primitive neighbours VOP, is that they allow specifying the depth of traversal. So at each depth, the result of the previous depth is used to get the new neighbours.
One useful parameter is Accumulate, which allows you to gather the result of all the depths vs keeping only the last depth, in case you need some kind of radiating gathering of geometry neighbours.
https://www.dropbox.com/s/ikffp1gzb0sc3ao/PointNeighbours_VOP_Animatrix.otl?dl=1
https://www.dropbox.com/s/ltqrmht3ypnd7ji/PrimNeighbours_VOP_Animatrix.otl?dl=1