Navmesh rebuild issues

anonymous_user_39b040c8 · August 22, 2014, 10:55am

How to reproduce issue 1:

Check Edit->Editor Preferences->Level Editor(Miscellaneous)->Update Navigation Automatically
Uncheck Edit->Editor Preferences->Level Editor(Miscellaneous)->Update BSP Automatically
Open new level
Drag NavMeshBoundsVolume into the level
Set NavMeshBoundsVolume size to a big number like 5000x5000x5000
Drag BSP box into level
The NavMesh is not being updated no matter if you press Build all levels or build Navigation->Paths
It will update correctly as soon as you enable Update BSP Automatically again

How to reproduce similar issue 2:

Check Edit->Editor Preferences->Level Editor(Miscellaneous)->Update Navigation Automatically
Check Edit->Editor Preferences->Level Editor(Miscellaneous)->Update BSP Automatically
Open new level
Drag NavMeshBoundsVolume into the level
Do not move it
Set NavMeshBoundsVolume size to a big number like 5000x5000x5000
The NavMesh is not being updated if you press Build all levels or build Navigation->Paths
Move the NavMeshBoundsVolume a few centimeters
Now the NavMesh is being updated

This happens in 4.4 (might have happened in earlier version too as I did not test it there).

Thanks.

EDIT: Added issue 1 which is the main annoyance because you need to go into the menu to fix it again

anonymous_user_e281dc471 · August 30, 2014, 4:34pm

I’m experienced the same issue! My NavMesh doesn’t update in editor

anonymous_user_b9532c9a · September 2, 2014, 5:36pm

Hi everyone,

The reason this is occurring is because, with bsp’s when you move them and update automatically is off they do not actually move. In a similar scenario, when you place a bsp into the level without update automatically on they are not “actually” there until you build geometry. The Navmesh is not updating because, according to the editor there is nothing to update. Once the build button is pressed it recognizes the changes and acts accordingly.

anonymous_user_39b040c8 · September 2, 2014, 5:42pm

Hey ,

thanks for explaining, this makes some things clear. It however does not explain issue #1 which is completely reproducible and does not regenerate the navmesh even if you press the build button if “Update BSP Automatically” is unchecked. It is also actually my main issue here:)

EDIT: Actually both issues are about that navmesh is not regenerated if you press the build button

anonymous_user_b9532c9a · September 2, 2014, 6:56pm

Hi stfx,

It appears I had misunderstood your message. I was able to reproduce this on my end and will enter in to be assessed by the development staff. Have a great day!