Unreal Engine Livestream - AI: State of Mind - July 25 - Live from HQ

General Announcements
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22

Totally loved this stream (even though it only covered basics) !!! Hopefully we’ll see more of this kind of AI training in the future, covering more grounds! Thanks and Wes Bunn

23

Thanks for letting me know I saw some people that did this and I was going to go that route since it is more visual when setting up the whole conversation. Here’s the one I saw https://www.youtube.com/watch?v=wVGoXOKLAWQ

So if you wouldn’t approach with behavior trees what would you do instead ?

24

I guess they are using it because it’s the only graph in UE4 that can efficiently build a tree of nodes; but it’s like using a spreadsheet for bug tracking: it gets the job done, but it’s totally not made for that.

For a simple dialogue system, Blueprint is just fine - you can draw smaller horizontal trees. For bigger graphs, you very likely want a custom solution, which fits your problem more, for example as a unique UE4 graph asset. There are many of these solutions available on the Marketplace, and there are also open source free ones available.

25

Would you be able to go over the general workflow for synchronizing interactive agents in a multiplayer scenario that isnt based off of the character class? Like a bird that flies to different locations and attacks the player or something just as an example

26

Im glad to see that documentation its something that Unreal care

27

cool I’ll be happy to look into those if you have the links

28

Sure, here is the one I knew: GitHub - jinyuliao/GenericGraph: Generic graph data structure plugin for ue4
And this one I just found on Google: GitHub - artemavrin/UE4-DialogueSystem: Dialogue System source code

I hope they can help! :slight_smile:

30

Looking forward to watching this tonight… :slight_smile:

31

are they still being uploaded there or will there be a link to the files in the top post in the stream thread? (like the ones from this stream)

somewhere will they will be permanently archived hopefully.

  • Note: as of this posting I couldn’t find any download links so posting these for now & for convenience
32

When they’re directly related to a livestream, they will be posted under “RESOURCES” in the announcement post. I edited this one during the stream but looks like I never posted it. Fixed, and thanks for noting it!

33

I actually learned things I never expected to this week after watching this very cool dude presentation. He was Key i am still here and pushing forward thanks brother/s sisters and sys t ers~

34

Awesome Stream guys, with regard to the question on sight range you cant change it via blueprint at runtime, ive been trying to, only way is vai C++ but it only works on the AI controller, is it possible to have these exposed in blueprint please :slight_smile:

35

Thanks Victor and Wes, really appreciate the renewed emphasis on AI. Looking forward to future streams.

36

Thank you for making this tutorial. Found this very useful. Is there any date for the next stream on AI?

37

If all goes well, we’ll see Mieszko on the 12th of September.

38

Thanks, :slight_smile:

39

Hey Victor After watching many tutorials on the unreal youtube, I had a couple of questions and maybe you can let Wes know about these ones so that they get covered for the next stream :slight_smile:

  1. What is the best method for setting and not set the blackboard variables, have a timer that goes to false like in the last stream or creating a task that deal with unset the variable ?

  2. When using EQSTestingPawn do we need to give context for it to work properly or just by adding the EQS it would work on it’s own?

  3. This is not a question but I would love if they could go over decorators a bit more, I feel every tutorial out there just uses the blackboard decorator, and I would love to see some love for the others.

Thank you for your time.

40

Thanks for the files, last time in AI training stream that i watched devs did some changes offscreen. Was kinda hard to follow after that. Having something to refer to helps great deal.

41

Never mind, found the post saying it got cancelled.

42

Just curious if there is a new date for the next AI live stream :slight_smile: