Function, Macro and Custom Event in UE4 (Unreal engine blueprint tutorial 2021)

Everything you need to know about Functions, Macro and custom event in unreal engine 4.
UE4 Blueprint tutorial for beginners 2021.
00:00 Intro
00:07 Function, Macro, Custom Event Overview
01:47 Function demonstration (Deal damage based on velocity)
06:51 Macro demonstration
10:03 Custom Event demonstration
Function
- Can communicate
- is processed only once
- cheapest
- demonstrate with velocity and DMG
Macro
- can't communicate
- is processed every time
- Can be used with delay and time
- More Exec pins
- demonstrate with Is score high enough?
Custom Event
- Can communicate
- Most expensive
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• Unreal engine blueprin...
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[@Thoriumus]

I think you missed the main difference of functions, custom events and macros.
A macro is nothing more then collapsed blueprint logic. When the blueprint is compiled the macro is resolved, meaning the nodes inside the macro actually become part of the blueprint script as if they where normally placed. The advantage is you can reuse them easily and they are less expensive than functions, not more expensive.
Custom events and function can both be called from outside but the main difference of them is that functions are self contained in the sense that they can have return values and local variables, but can't use any timed nodes. While custom events are part of the main script and can't have any local logic or variables, but can use timed events. The main reason you want to use a function is if you need return values and/or if you want to have variables, which are only existing inside of the function. Which also means you can use them recursively.

[@vergilmora8460]

which is the less and the most expensive? and why?

[@chiboreache]

custom events can pass variables as well as dispatcher events

[@Thoriumus]

@@chiboreache yes, but they cant have local variables and they cant pass return values. If you add return value it automatically becomes a function.

[@chiboreache]

@@Thoriumus for sure

[@danielexceed6882]

Thanks! Your explanation helped me now

[@adamjensen253]

That was realy helpgul for me. thanks alot!

[@colelindbom6012]

I enjoy learning unreal from macklemore ;D seriously tho you do a great job

[@chiboreache]

macro can be called from macro library in any bp

[@Mike-we7rt]

Hey I’ve been using unreal for VR and the hands always feel awkward when holding objects is there a way to reposition the hands when gripping?

[@SirFansi]

Check out VR expansion plugin, you have much more options to modify hands position there.
th-cam.com/play/PLQAo6pRlrb_XZHKww9xkA_P0i5_Xs3usu.html

[@N1coDe]

Hi mate.
I already watch lesson about this, but i want to see your video)

[@SirFansi]

Well, be my guest. xD

[@karakamen]

Please speak slower... No point in doing tutorials if people can't understand what you're saying.