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

[DFailure]

Am I reading this correctly? The documentation was expanded and improved, not the AI system itself, right?

[KrystalDeMagicka]

Very excited, thank you!

[marineuac]

im ready

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[Elfideo]

[Question]

is it a good practice to use a behavior tree for branching dialogue?

[KristofMorva]

[Question]

is it a good practice to use a behavior tree for branching dialogue?

These are two totally different systems with different tasks, it's not suitable for that task at all.

[motorsep]

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 VictorLerp and Wes Bunn

[Elfideo]

These are two totally different systems with different tasks, it's not suitable for that task at all.

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 ?

[KristofMorva]

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 ?

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.

[Oldsiren]

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

[Rollocasual]

Im glad to see that documentation its something that Unreal care

[Elfideo]

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.

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

[KristofMorva]

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

Sure, here is the one I knew: https://github.com/jinyuliao/GenericGraph
And this one I just found on Google: https://github.com/artemavrin/UE4-DialogueSystem

I hope they can help!

[pbdarcey]

Looking forward to watching this tonight...

[ayretek]

VictorLerp - downloadable projects & files from streams used to be posted here: https://forums.unrealengine.com/unre.../asset-sharing

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

- Base: https://epicgames.ent.box.com/v/AIProjectBase

- Complete: https://epicgames.ent.box.com/v/AIProjectComplete

[VictorLerp]

VictorLerp - downloadable projects & files from streams used to be posted here: https://forums.unrealengine.com/unre.../asset-sharing

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)

[/URL]

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!