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NavMesh Setup with Level Streaming?

I just began working with level streaming and I've got some problems with it. I have a persistent level that's almost empty and I want to load different environments into it by level streaming. The sub-levels contain a NavMesh. From what I can tell they get properly loaded, too (when I turn their visibility on, it looks ok). But my pathfinding doesn't work and I assume that the NavSystem doesn't know about the streamed-in new nav-data. What do I need to do here?

Product Version: UE 4.11
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asked May 26 '16 at 05:02 PM in Using UE4

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2 answers: sort voted first

Got it: You don't need to set it to Dynamic, this couse a huge fps drop. Just setup two NavMeshBounds, 1 into you Persistant Level and 1 into your Level Stream. I do so by just copy/past my NavMesh and use CTRL+M to add the copied one to my Level Stream. And important as well is: You have to make all the level stream visible to make nav meshs work well.

Works fine for me ;)

Don't forget to mark the answer for the others...

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answered Jul 03 '18 at 09:38 PM

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avatar image leadermax Aug 02 '18 at 12:37 PM

excuse my stupidity...what's STRG? I tried CTRL+M, but nothing happens because it is not bound to anything in my keyboard shortcuts. And I'm not sure where exactly to click before doing that EDIT: ctrl+M moves an actor. i wasn't able to copy and move it right away, but anyways I edit>duplicate the navmesh, edit>copy, make sure the destination level is selected in Levels tab, right click in the viewport, edit>paste. and then adjust position.

avatar image HitEmUp Aug 02 '18 at 01:42 PM

i m sorry, mb. I m from germany and our CTRL key is called STRG :) So its CTRL+M. And you also need to know: You have to make all the level stream visible to make nav meshs work well.

avatar image leadermax Aug 02 '18 at 01:51 PM

Yeah I figured that :) anyways thank you for your answer, it worked for me !

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This is currently a problem with navigation streaming. Take a look at the forum post I linked below. It should contain the information that you need to get this working properly.


If this does not resolve your issue, or you have additional questions, feel free to let me know.

Have a great day

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answered May 26 '16 at 05:24 PM

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Sean L ♦♦ STAFF
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avatar image MaxPower42 May 26 '16 at 05:47 PM

Thanks for replying. I don't know, if that's a solution for me. I posted in the topic.

avatar image Sean L ♦♦ STAFF May 26 '16 at 05:50 PM

I will mark this topic as resolved for now. When you get a chance to test that solution, feel free to respond to this thread if it is still an issue.

Have a great day

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