Async Loading Screens and Transition Levels | Unreal Fest Europe 2019 | Unreal Engine

This engineer-oriented talk about assets loading management for good performance and smooth transitions by Epic Games' Support Engineer Axel Riffard goes over different methods to craft beautiful and highly optimized loading pipelines for your game, be it single or multi player.
Learn more about Unreal Engine at www.unrealengine.com

[@CinematographyDatabase]

So happy to see something tangible on how to make loading screens. That being said, I wish there was a simple Blueprints/INI settings way of doing this with out C++ modules.

[@urbantwilight]

Cinematography Database yeah, it's kinda surprising the engine doesn't make it much easier... and try adding a loading progress, that's when the fun begins.

[@jgharding2]

Coming hear a year later for exactly this and yeah, I was expecting it'd just be a blueprint setup, I've no hope of doing this successfully... pretty sad...

[@Slash27015]

Check out "Reids Channel", he made something like this using just blueprints. I've tried making it myself and it only lags a little on the first initial boot (aka when starting the game for the first time)

[@jgharding2]

@@Slash27015 just checked this out, thanks, it looks like it works a treat!

[@BlizzardZGaming]

@@jgharding2 looks like he deleted the comment, do you happen to remember what he said?

[@cafo5997]

Love this man, I want more talks from him!

[@jayice8412]

So Happy to see someone that actually wishes to understand the computer, and learn assembly.

[@curtisnewton895]

ActionRpg is now in "Samples" tab

[@stefevr]

nice of him to present in front of a normal map

[@ArtofWEZ]

Thank you, would be awesome to have this in Blueprint or plug in build in. As an art first developer the things that scare me the most are loading screens and saving.

[@haroo5738]

its strange that the things that seem the most simple are the biggest time consumers lmao

[@mattmurphy7030]

How much would you pay for a blueprint solution?

[@tastysnak]

I love how everyone laughs at 3:30 regarding Unreal Engine's documentation.

[@bryancorell9092]

ShooterGame uses the same LoadingScreen setup and has for years.

[@pavelnevasilevskiy4196]

Thanks!

[@ErebusWolf]

This is great, but how do I make a loading screen for VR? Because a slate movie wont play in a vr headset correctly...

[@SSHEINI82736]

Thanks

[@bkkaan52]

Any video inplementing this that i can learn?

[@WildOxStudios]

Umm? But transition maps don’t actually execute any code? Even if not blank you can’t use begin play or tick in the level blueprints? As far as I know you can’t have any logic there? Are you using a begin travel client side dispatcher or callback? How are you actually handling any logic during the level transition other than saving actors for travel?

[@jorhoto7064]

Looks like overlay complicated. How come there is not a blueprint process to add a simple loading screen? Same thing to add and manage modules.

[@iansmith3301]

Is the ActionRPG sample gone? :(, I can't find it anywhere.

[@TheFoyer13]

It's under the samples tab under Unreal Engine in the launcher... But it hasn't been updated to UE 5 so I'm wondering if they do things differently now..

[@HiChunTaChen]

Execuse me. If Slate is running in another thread, how can it display graphic? As far as i know, graphic-related update should be done in main thread.

[@Chuklov]

Only I have an issue with the loading screen on 4.25.3? After adding a module the project cannot be started as a Module is broken or created with another version. Great engine, but some main points as the Loading screen and Save&Load is hell and not implemented in the Engine at all.

[@DimitryArsenev]

Need RemoveAllWidgets before next level? Why? I think its deleted in new level.

[@JohnDaniels]

Have been searching high and low but have not found a way to display an animated loading screen in Blueprint besides using level streaming. Anyone else ever figure out how to have a simple animated loading screen in Blueprint?

[@spaceharryproduction9125]

There are simple and more complex ways :) This was a simple way in 2015: kzbin.info/www/bejne/bKeWlHeLmL6phZo Hit me up for guidance :)

[@mattmurphy7030]

How much would you pay for a blueprint solution?

[@alextwofaced8596]

bUseSeamlessTravel... where? Why cut source code screenshots at all? Quite limited talk. 3/4 of it was about the talk itself.

[@coolzo2524]

I know this was posted a year ago but for anyone wondering you set bUseSeamlessTravel in your game mode

[@ViniciusRozario]

Why spend 17 minutes explaining pros of multi threading, and then literally 10 seconds on how to implement a module interface to make it work

[@DigitalLoom]

there should be preset loading screens for everytheme of game that can be easily edited by a kid built into ue4! why do the devs make it so hard?

[@sam_making_games]

Sometimes with engines as big as UE4 it's easier to give the tools to the developers that can be used to create systems that they want. This engine is not meant to be for kids, it's a proper game engine with tons on built in functionality and on top of that you have the source code available to you so you can modify the engine if you need to.

[@nitroneonicman]

Because UE4 is not made for kids, it's made for serious developers.

[@eliaslorsen2941]

Not working async. Maybe for movies it works but for images, text its not.

[@Odb718]

Video starts at 16:37

[@luigiermini9914]

On Unreal 4.25 Loading Screen Widget does not show up.

[@eobet]

15:50 C#!? what is this, Unity? :P

[@illyay1337]

Yeah, ironically if you touch C++ you'll be touching some minimal C# code to modify those target and build files.

[@mattmurphy7030]

The build system is c# obviously. Have you never made an unreal project before?

[@curtisnewton895]

complicated as F@#K just to have loading screens ??? really ????

[@jorhoto7064]

We just want to create games and let the engine do the low level stuff c++ efficient.

[@jorhoto7064]

@@bezoro2008 Do you really understand you need all this for a loading screen? I can't imagine what you will need for the complex side. In Unity you have LoadAsynchronously (int sceneIndex) and it returns an object that you can use to obtain progress info, success status, etc. That's what I search in a game engine, not having to deal with a coding bible for each single task (totally irrelevant for the game itself you are creating). Focus in the game you are creating, I don't want to deal with low level stuff (modules) and 2 programming languages c++ and c#, calling "slate" to force a new thread, etc............. For god's sake.

[@bryancorell9092]

Nothing about a game engine is simple, its a magical dance of countless complicated subsystems. You want to be given a fish but you should be learning how to fish.

[@jorhoto7064]

@@bryancorell9092 I agree with you, for the top-notch features. But to display a loading screen you need to travel to the low level engine? Give me a function that I pass an array of actors I want the engine to load and that's all. Bear in mind that at the video start it even says that it is not about how to build loading screens in multiplayer. So for multiplayer you are alone, etc.....

[@SneakyKittyGameDev]

so game dev is not for you

[@DronX_]

​@@SneakyKittyGameDev may be you must code in binary all instead to use a game engine >:v

[@DimitryArsenev]

Worse tutorial - i dont understand nothing. At 12:00 talk about Modules, but i not see any reason to use modules here. Says about separate logic and etc, dude folders already separate logics, not need to to modules, loading its game logic - its not offside asset. Okay, at 20:30 tutorial starts at 20:50 tutorial ends.... 20 seconds its all tutorial..... What?

[@jd-foo]

"Multithreading is the ability of making multiple calculations on the same CPU" This is probably the worst multithreading definition I ever read.

[@aidentalksue4904]

Apparently this guy was wasn't updated with the new coding standards of not using the word Black. We certainly don't want to offend someone's feelings with our logic or explanations. No, we should tip toe around it and just keeping increasing this ever increasing list. It's the only logical thing to do, for feelings. Diversity and inclusion by exclusion I always say.

[@mattmurphy7030]

Are you lost?

[@aidentalksue4904]

@@mattmurphy7030 Why would you ask that? Clearly, I was referring to the new coding standards. We don't want to impede on the delicate sensibilities of people offended by the word black. I was just expressing my dissatisfaction at this old video and how it did not adhere to these new and delicate principles.

[@aidentalksue4904]

@@mattmurphy7030 I'm astonished you weren't offended. I would think more people would be. Clearly, otherwise they wouldn't be new coding standards.

[@ferlaur113]

Can't you hear yourself saying hum ... hum... hum... heu ... heu .... ten times a phrase?

[@iansmith3301]

Dude understands Japanese, French, English, and assembly. Give him a break.

[@mattmurphy7030]

No I literally don’t hear it. What a whiner