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Box Component Creates Invalid Navmesh Data

The associated screenshot demonstrates what bringing a "blocking volume" into my scene creates. I have an actor blueprint that contains a Box Component which (regardless of configuration options) cannot replicate what the Blocking Volume class does.

In the screenshot you will see that both the top, and interior, of the Blocking volume are flagged as walkable. In my blueprint however, configuring the box component at construction time will not affect the navmesh at all. Instead of receiving walkability data on the top of the box, I only get the walkability from the interior of the box.

Unfortunately it is difficult to describe the fail case in a screenshot because there is no data to display (no navmesh walkability is created.)

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asked Sep 01 '14 at 12:02 AM in Bug Reports

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Thomas Ingham
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avatar image Jonathan Dorman STAFF Sep 03 '14 at 06:47 PM

Hey Thomas,

Can you tell me a little more about how you set up the Blocking Volume in the blueprint? A picture would help too. I'm trying to reproduce your issue so it can be investigated.

avatar image Thomas Ingham Sep 04 '14 at 02:48 AM

The pictured blocking volume was dragged out of the Modes palette. I did not resize it or anything, just snapped it to the geometry that was already producing good nav data. When I enable a Box component on the object pictured I get no walkable mesh for the region.

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Hey, Thomas.

After a bit of research, I've found that this is a known bug and that we've got a fix ready. The fix should be included in the next engine update.



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answered Sep 04 '14 at 04:09 PM

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