Hi guys. Im just beginning to learn AI and following a tut, I setup the behavior tree, blackboard, chsracter BP, etc. To make the NPC find a random point within a 1500uu radius around it, wait 2 seconds and repeat.
But the character always just stands there. I’m pretty much 100% sure i did exactly what the tut did, but it uses UE4 and I’m on 5.
Is there something extra or different I gave to do to make this work on 5?
This is the tutorial:
The nav mesh doesnt show a green plane in 5. It just makes the ground darker. Is there some setting in the nav mesh I have to change to make it work?
On your blackboard tree, select the node “move to” and go to the right panel. Make sure the variable K_TargetLocation = Vector, not “self actor” as default. You need to make sure the names always match up.
Could it be an issue with the nav mesh? It works for the guy I’m following and I did exactly what he did. Could it be something about ue5 since I’m using it and he uses 4?
I did add a navmesh. Is it supposed to be black instead of green in UE5? Every video I see it’s green. And does it have to be the third person template? I think mine is the first person one. I’ll try this out, but I’d really like to find out what went wrong. Thanks a ton for yhe link!
Hey again @BO-DACIOUS! So you already mentioned the navmesh view acting funny, could you enable it and show us how it looks on your ground? Does the Nav mesh volume cover the entire zone? Are your blackboard events firing? (try to print something when attempting to do things, might give us an idea of where things are failing)
Hi, so this black square us my navmesh. This is UE5. Never seen it black before. Every node in that image of the BTTask blueprint fires successfully over and over. So what do you think about all of that?
I’m also testing in UE5, I’ve also never seen it in black. You can actually change the color of the navmesh in it’s settings but assumedly you haven’t. Let’s test the navmesh itself. Pop 2 of these bad boys in your scene at different locations in the nav mesh and see if they can path to each other. (They don’t actually walk they just show the path they would take)
Hey yeah I dropped two of those down and to me it looks like something wrong. Here’s a shot if what I see.
If I stop replying its because I’m starting to fall asleep. Long stressful day of trying to find out why things don’t work. But please reply because this is very important to me. And I will 100% reply tomorrow. I really appreciate this.
Support: I was wrong. I had to check a box to make them work and they found each other. Now I’m completely confused. I’ll reply to you asap tomorrow. Thanks
I can try tomorrow for sure. I can’t seem to record smooth videos of UE5 but I’ll try my best. I’m just starting to fall asleep so I’ll reply tomorrow. Thanks again
@BO-DACIOUS All good, so since we know it’s not the navmesh, we’re gonna have to look through everything like LFA mentions, a video would be best, decent quality if you can.
Character BP
NavMesh Bounds Volume Settings (and how it looks in general)
AI Controller
Behavior Trees and Blackboard
etc.
Edit: also had an issue recently that was that their world was world partitioned and that caused an issue with the navmesh Simple Ai Not Moving? - #16 by KinGxSeGaL1 This is likely not your problem but I figured I’d mention it for the sake of it.
As much as you can show that’s relevant. Enjoy your sleep!
Also, I learned from another source that sometimes, you need to disconnect the behavior tree nodes and connect them again, not sure if this sort of bug still persists. Maybe you want to try that as well.
I disconnected ny behavior tree modes and replaced them and that didn’t work. The tut just places the npc In the world too. Somewhere it let’s y.ou pick spawned or placed in a dropdown and I’ve tried all those options. I don’t know why this is so difficult. It was very easy to follow and it should work. This is extremely frustrating.
