Having pathing problems with Halla? Here's a fix

[Sennerezza]

I'd discovered and fixed a small navmesh bug in Halla earlier today, but I've spent more time trying to find a channel to communicate with Elianora than I did fixing the bug itself so I've given up on that and now I'm posting my findings/fix here just in case someone wants it.

 

Here's the problem: NPCs will path through Halla's garden instead of the main road, even though it's visibly a longer path. Coming from the adjacent bridge, they'll even go so far as cutting the road intersection out of their path entirely and dipping in through your side gate; an incredibly uncharacteristic behavior for properly navmeshed roads.

 

Here's the bug: Loading the navmesh in CK, I found that all the borders highlighted green and CK-pathed perfectly fine. For the actual game itself though, one of the vertices on the main road in front of Halla is floating a few inches too far in the air, misaligning the border edge with the adjacent cell's border edge which breaks the navmesh there even though CK claims, and demonstrates, that it's perfectly fine.

 

The fix: Load the .esp in the CK, go to the shack's exterior in the worldspace, select the Vertex I've illustrated in the gallery below, and use Drop Vertices (F by default) to drop the vertex to the ground which will align it and the faulty edges with the neighboring cell. Finalize the navmesh and save the plugin as usual and your pathing problems will be fixed.

 

As for the illustrations, here's an imgur gallery showing in-game pathing with the clairvoyance spell before and after (CK's pathing test does NOT show similar behavior at all, practically all NPCs use the same pathing as Clairvoyance though), and the vertex that has to be edited: http://imgur.com/a/DL3cl

 

 

I'd love if this reached Elianora somehow, but I can't find an open channel to communicate so maybe someone else can pass this along.

 

Here's a patch esp, cleaned and error-free courtesy of xEdit. Load it immediately after Eli_Halla.esp in your load order:

[yian]

Thank you so much for your excellent work!