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Postponed means that the issue was either a feature request or something that requires major refactoring on our side. Since that makes the issue not actionable in the close future we choose to close it as Postponed and add it on our internal roadmaps and technical debt pages instead.

Postponed

Votes

22

Found in

5.5.0a1

2019.4

2020.3

2021.2

2022.1

2022.2

Issue ID

805160

Regression

No

[NavMeshSurface] Trees placed on Terrain are not taken into account when baking NavMesh

AI Navigation

-

How to reproduce:
1. Open the attached project (TreeTest.zip)
2. Open scene Scenes/SampleScene
3. In the Hierarchy window, double-click on the GameObject "TreeLocation" to observe the Trees in the Scene view
4. In the Hierarchy window, select "NavMesh Surface"
5. In the Inspector window, under the NavMeshSurface component, select Bake
6. Observe the NavMesh in the Scene view

Expected result: the Terrain Trees are taken into account in the NavMesh
Actual result: the Terrain Trees are not taken into account in the NavMesh

Reproducible with: 2019.4.36f1, 2020.3.30f1, 2021.2.13f1, 2022.1.0b9, 2022.2.0a5

  1. Resolution Note:

    This feature request has been added in NavMeshComponent backlog

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Comments (8)

  1. SexyNoodleMan

    Jul 24, 2025 22:11

    Please fix the issue. I know making two separate Unity features (Terrains and NavMesh) work together is difficult, but I believe it is a very common scenario in which a developer will want to make a large open-world terrain navigable by the AI. To have Terrain Trees not included correctly in the bake for NavMesh Surfaces is a glaring oversight in my opinion.

  2. Crzed

    May 15, 2025 18:59

    This would be funny if it wasn't so egregious.

  3. DatmosPro

    Sep 09, 2024 05:40

    Is this bug real ? i can not understand how we can do big "nature maps" with thousands of trees, rocks,... were its imposible to put every single tree or rock manually.

    How are we supposed to do this?

    I'm freaking out that this bug exists and that it's been around for so long!!

  4. crdgre

    Apr 01, 2024 14:20

    I do not understand why it's not fixed yet.

  5. hublard

    Feb 05, 2024 15:38

    lol this is a joke, that that is still a bug? it force u to use the new navmesh surface but u cant bake terrain tree navmesh? wtf unity fix it. using unity 2022

  6. Maelstrom_Ben

    Jan 27, 2024 02:08

    I would like to +1 getting this prioritized. It's crazy that the new version of navmeshes has a regression as big as this.

  7. leondino0309

    Aug 22, 2023 11:39

    Also leaving this here for everyone with this issue (which are gonna be a lot of people now that it is forced with the newer versions of Unity).

    This guy made a really good fix:
    https://github.com/Malikir324/Unity-NavMesh-adding-Obstacles-To-Terrain-Trees

  8. leondino0309

    Aug 22, 2023 11:12

    Please fix this issue.
    From Unity 2023 forward, the new AI naviagtion systems forces you to use NavMesh Surfaces, instead of baking it through the navigation window. (Unless you use the obsolute version, which shouldn't be neccesary.)
    This means that in the newest versions of Unity it has become IMPOSSIBLE to bake terrain trees, without using outdated feautures with a warning that they will get deleted...

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