Nodes themselves do not have a normal. You would have to sorta create your own way of getting that information. It’s come up in a handful of threads, so you can hopefully find some inspiration here:
The nodes themselves don’t really have a normal. So this is not exposed anywhere. The graph visualization will instead position the y coordinate of tile corners at the average of all y coordinates of the nodes that touch that corner.
The relevant code is in the GridGraph.CreateNavmeshSurfaceVisualization method.
There is the MovementPlaneFromGraphSystem.SampleSmoothNavmeshNormal method that you can use, though it’s not really written for ease of use. It’s mostly for internal use.
Hi
The normal is not explicitly stored for any node, however if you have a navmesh/recast graph you can calculate the normal like this:
TriangleMeshNode triNode = node as TriangleMeshNode;
var normal = Vector3.Cross((Vector3)(triNode.GetVertex(1) - triNode.GetVertex(0)), (Vector3)(triNode.GetVertex(2) - triNode.GetVertex(0)));
You may also be interested in some methods on the TriangleMeshNode class, such as ClosestPointOnNode , ClosestPointOnNodeXZ and ContainsPoint.