Unreal Engine - Blueprint Interfaces Tutorial

Learn about Blueprint Interfaces Today, Improve your Blueprinting!!! Compatible for both Unreal Engine 4 and Unreal Engine 5. (ue4, ue5)

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★ Timestamps ★
00:00 - Introduction
00:18 - Why use a BP Interface?
02:04 - How to use a BP Interface
03:53 - When to use a BP Interface

[ethanwasme]

worst part about taking breaks from unreal is knowing everything you need to finish a system, but forgetting all the specifics and having to follow toturials for a few days xD

[Seanie]

I thought I knew blueprint interfaces, but you blew my mind by calling out how adding details on the outputs changes how it's called. This is a real game changer for efficiency in what I'm working on, great video!

[GunGaming]

This is awesome. I'm not sure if you have something like this, but an in depth tutorial going over blueprint communication in general and the different methods would be a solid hit. There's no obvious tutorial out there that I've found.

[Grimsikk]

I'm really confused.

I am trying to have a pushable blueprint with a box collider tell my Interaction Component that the player is overlapping. I can't have Inputs and Outputs with the same variable name on a Function in my Interface, so I can only set or get in the respective blueprints. How do I pass this information between the two? It's just a simple "canPush?" boolean.

Nobody seems to explain this in a way I can understand.

[GTexperience_Channel]

All of a sudden I can no longer find the (message)?!? the class option is still there, it just doesn't say (message) anymore. any clue?

[connorjade]

Can I call individual variables from one blueprint to another using interface? For ex, I'm having some skeletal meshes inside my character bp. I want them to be called into another blueprint without using casting. Can interface do it? And if yes how?

[clebo]

So I'm still a little lost. I tried this (instead of a boxcollision I just used a keyboard input for the example) and it's not coming up. What I'm hoping this all allows for is a way to say trigger "things to happen" like the resetting of a boolean or a random location generator without Casting. is that what this is supposed to help with?

[VeilOfBlood]

You explained this so perfectly thank you so much!

[preston]

Get player character at 5:46 wouldn’t work in multiplayer though right; How would you interface with multiple players?

[spicygnomesoup]

This is a very helpful tutorial. I wish I had this earlier. I hope new developers watch this video and learn how to use interfaces instead of lvl bps or casting all the time.

[RMC_]

I've lost count how many tutorials I've watched about this and still can't get it to work. The first issue I have is that I can't even get a reference to to the correct blueprint as you do at 3:35, I only have the top option (the BP interface itself) and not the BP I've added the function to. I've compiled everything and added the function to both the blueprints. Does anyone have any idea why it wont work?

[mikey]

We need a pop quiz at the end of these xD
Nah, thanks for the vid my dude!

[DougieBoy]

It took me SO LONG to figure out how to use Interfaces. Now that I figured it out, it's so much easier. I don't know why interfaces seem so complicated, but they are really not once you understand them.

[_EliteKnight_]

This is the best explanation of interfaces! Finally I understand how they work. Thank you))

[jeobji]

amazing explanation and awesome examples! i really love how you show the examples. Thank you\

[Mygamesworldiq]

Add my name in intro video too, please

[fluffernaut]

this was invaluable in helping me. not to mention the production quality was enjoyable and concise. thank you very much.

[irjayjay]

Whao... interfaces are weird in blueprints. I was trying to save a reference to my class which implements the interface, but that wouldn't work. Meanwhile you can just call any interface method from any object and it'll work if it's implemented. Weird.

[jackye]

this is the best tutorial on interfaces that I've wateched so far that really made me understand when and why we would use an interface bp. so far I've been looking at ll these other tuts and at the end of the vid I'd still scratch my head still thinking "and still, how tf do I use them/for waht reason" this one is so clear and nice. Great work mate. Subbed

[SceneArtisan]

Overly complex, . and stupidly convoluted. I hated the 2004 editor and every iteration since. Horrible to work with, plus, nodes make NO sense to me whatsoever. All I wanted to understand was how easy it'd be to make a teleporter rise and drop out of the ground (a glass floor) as the player approached it / stepped away from it. I don't have the latest editor installed, it was just that a friend is porting my UT99 W007 map to UE4 (5) and she's not prepared to keep the functions I built in place in my original; I figured I'd find out how easy (or hard) it'd be to do it myself, despite having a passionate hatred of the new editor.