I’ve done everything I know how to do so far. I’ve added navmesh obstacles, volumes, and regular modifiers to the prefabs for the trees I am using for the terrain. no matter what I do when I bake the trees on the terrain are ignored and the NPC’s walk right through them. I’m assuming this is because of my ignorance of the navmesh system, but obviously, I need to fix this.
I’ve read this forum thread and tried doing all of the suggestions but nothing helped. My trees all have colliders.
Navmesh Surface componentAfter countless naughty words I think I finally figured this out.
When you bake from the Navmesh Surface component the terrain trees are ignored no matter what I do. However when you Bake from the Navigation window it works fine.
Go to Window → AI → Navigation to open this window. Go to the Bake tab in this window and press the Bake button. Now trees are included in the navmesh bake.
This gave me a headache for so long.
This is a bug that Unity is not addressing at the time of this post.
2026, using Unity 6000.3 and have the same issue.
F’in ridiculous.
Theres a point where a bug is no longer a bug, but just a broken mechanic. Hence, this.