blueprint

[frosty heron]

Takes like a min though.

[pine carbon]

The issue was more that half of them do not have VS Code or know how to use it, and that turned out to be dangerous.

What with VS Code recommending horribly outdated plugins that break everything. If it were up to me everyone would be using Rider.

I spent several days undoing the damage caused by a commit featuring one of those stupid plugins. Granted, I was very inexperinced with Perforce at the time and I could definitely do it faster now, so it was a good learning experience, but still.

[frosty heron]

Oof dont use VScode

Use Visual studio or rider

[errant snow]

Yeah, you really want an automated build machine and a tool like UGS to do editor builds that artists don't have to compile.

[pine carbon]

We, meaning not me, want to publish this game, and Rider costs money.

Visual Studio and VS Code both do the same thing with being wildly out-of-date. All modern support for Unreal seems to be in Rider. I wish Unreal could just be fully decoupled from the Microsoft IDEs.

[frosty heron]

Sure but your artist only need to hit ctrl b without touching or reading a code.

[pine carbon]

UGS came up a lot when I was investigating this initially. Definitely something I will look into when I have the time.

Also making Perforce depots that have the modern features so we can use actual push restrictions. We're using a Classic Depot still for whatever reason, which lack some important version control capabilities.

[pine carbon]

Is there a way to view stuff like this in a more legible format?

And how can there possibly be no valid instances in existence? It's stopped on a breakpoint inside one!

[gentle urchin]

Or the programmer could sit there in plugin heaven, and just push and update those for the arists amd whatnot to use

[frosty heron]

Was there a reason to ever use module other than to indicate that this section is speicifc to this project?

[normal raft]

Does any one know why i get the dataflow editor instead of the GC collection ?

thats the screen i want?

[gentle urchin]

You're asking the wrong person xD I got 3 modules in my plugin, but my reasoning is mostly that they can and should not be used independently

hence not being 2 or 3 separate plugins

[pine carbon]

In retrospect, perhaps I should have used a more simple partition algorithm.

Fricking WORKS though. Woo.

[glad stone]

Probably it is showing you a message related to something else or it's just broken 😆

[pine carbon]

I never did find a good solution, so instead I ended up writing a bunch of helper print functions to log stuff.

Ended up working pretty well tbh.

[glad stone]

Do you have some reprodution steps that you can provide?

[pine carbon]

You want the print helpers?

[glad stone]

I thought you had some bug going on there, sorry I misunderstood ^^

[pine carbon]

Ah. No, these are what was used to fix the bugs.

The many, many bugs. And crashes.

Unreal seems pretty chill with indexing past the end of an array accidentally but it instantly kills itself whenever I tried to index past the beginning.

[manic geode]

Hello. Does anyone know if there is an equivalent to planetary gravity for FirstPersonCharacter? I watched this tutorial, but it is for third person, and everything broke in first person for me. https://youtu.be/gsGJP_rOOnw

[gentle urchin]

The view mode doesnt affect how this works

The tutorial might use thirdperson character to do sole casting, but its really any pawn , and should be as generic as that

[shy vapor]

Does anyone here know how to use scene render target 2D?

https://www.youtube.com/watch?v=6BT-Ux56KBs&list=PLFtEjstbbTBcTKEjstYWALf0YBGjQvdml&index=28

Because I followed everything in this tutorial but it looks like it's full of headbobs (I'm using UE 5.5.4).

İs there any seamless portal tutorial fot 5.5.4?

[gentle urchin]

Isnt it just a capturecomponent + rendertarget?

[shy vapor]

idk.

it works but not like tutorial

it looks delayed

[gentle urchin]

Wrong tick group

[shy vapor]

so which one?

[shy vapor]

let me record a video

[pine carbon]

I'm gonna try to explain a goal I have, and I'd be grateful if someone could point me towards a good approach. I want to make an animation for a Progress Bar widget that will "lerp" the scroll percent. I know how to take input and convert it into a percentage relative to a full value, and I know how to make an animation that will make the fill bar go between two values, but I DON'T know how to do both of those things together. Basically, I want to be able to do this:

def scrollBetweenValues(newVal):
  newPercent = newVal / progBar.maxVal
  progBar.scrollAnim.playBetween(progBar.percent, newPercent)

The best way I've found to do this is making an animation that scrolls Percent from 0.0 to 1.0 and doing some math on the time to manually start and end it at specific points, but I'm sure there is a better way somewhere.

[gentle urchin]

Thats mostly it yes

You gotta cache the current value and set value and restart the lerp whenever it changes

[pine carbon]

You can't, like . . . make a curve at runtime and shove it in an animation somehow?

[gentle urchin]

You can make a delta curve, but pure interp with optional easing does the trick nicely

[pine carbon]

Could you elaborate on that?

[gentle urchin]

I can show you my setup in a few minutes

I do the actual lerp in the material, but its all the same really

[pine carbon]

Oooh, what about this?

[gentle urchin]

heh 😛

argh, something something timing ... i can't show it right now, i coincidentally moved my engine installs to a new drive xD

[pine carbon]

Where would I find the necessary input for the Curve ID pin? There doesn't seem to be a match inside the animation variable.

[gentle urchin]

if you really want to use a timeline, you can hack it in through the owning controller

the owning controller owns it and calls a widget event for the updates

widget controls the play of said timeline

[pine carbon]

I'm awful with controllers, and I've been trying to get away from using Timelines. Is that Node a timeline thing?

[gentle urchin]

No it's an interface call

[shy vapor]

its same again. i set post update work tick group for both my portal and fps

[pine carbon]

I can see that it's an interface call, but I don't know what implements that interface.

[gentle urchin]

if its not you implementing it, how does calling it help?

[pine carbon]

If the builtin Animation Object implements it.

[gentle urchin]

Actually in this super ancient project, i vaguely recall using the timeline trick for it

so the owning controller holds the timeline

ffs..... it doesnt build, ofcourse

this is what it looks like

I scrapped the timeline for a FInterp

the material is just a linear gradient

[pine carbon]

I don't see an animation anything here?

[gentle urchin]

no, it's just tick + interp doing the job

[pine carbon]

Unless it's one of the Material nodes. I'm not good with mats.

Ahhh, SUPER raw animation.

I guess that's also an option. Definitely cleaner than the time thing.

[gentle urchin]

i didnt go for any easing

but you could easily do easeing if you want it smoother or anything

InterpEaseOut is prob what you'd want

starts fast, slows down as it gets closer

[shut blaze]

I was thinking
Should I make this a function?
when something hits async it load, but what about when it receives 2 calls, does it still tell them to save both, or can it only async one at a time thus the need for a function which runs individual code for each

[pine carbon]

I would at least like to see what this does first, but I cannot find a single node that outputs that Curve ID pin type. It's "Animation Curve Indentifier Structure," which has no results on Google except for one person asking the exact same question as me.

[gentle urchin]

functions cant be latent

[shut blaze]

wdym?

[gentle urchin]

so event is your only option

[shut blaze]

well damn

[gentle urchin]

functions require immediate return

latent nodes are non-immediate

latent - delayed

in the futuure

[shut blaze]

oh ok

[pine carbon]

That popup looks like something out of Unreal 4.

[gentle urchin]

you can load several at once

[shut blaze]

thanks

[gentle urchin]

but you gotta track the ones you're trying to load

for example with an array

[shut blaze]

fair

[gentle urchin]

https://dev.epicgames.com/community/snippets/OKNo/unreal-engine-async-load-assets

this assumes you want to load an array specifically,

but you could usue the same logic, but push it to the array when it requests a load, and remove it from the array on load complete

thus keeping a buffer of things that are currently loading

[shut blaze]

alright alright

is normal loading faster than async loading?

ye

[ornate trail]

how can I hide this bit of the actor for screenshots?

[shut blaze]

press G

[ornate trail]

love the easy problems

[gentle urchin]

Normal is blocking tho

[shut blaze]

that's what I meant

forgot to mention lol

good for loading screens

[gentle urchin]

So if it takes 5 seconds, itll freeze the game for 5

[shut blaze]

I got another question about the SaveGame thingy

Does it create a folder named after itself?

So basically you can have a folder named player, another named system (2 blueprints)

[gentle urchin]

Only if you give it a folder iirc

[shut blaze]

iirc?

too lazy to test making another save game object

I always forget how this thing works, I ain't watching a tutorial for the 30th time, just gonna copy paste for future games

[astral summit]

Hello. In a string variable, how do I branch if it has a new line or not?

Since moving to a new line is considered a character, how can I check whether it is a new line or not?

I tried checking whether it was \n or Shift + Enter, but none of them worked

[warm oriole]

I'm having some trouble getting my AI characters to replicate their movement with State Tree & GASP. In Standalone I can verify that the movement is working correctly but in PIE-Client they never move, but I can tell they are moving on the server because the gameplay debugger is updating the perception results.

I've got my AI Character set to replicate movement and the controller is setup the same just incase it needed the flag there, but regardless of my setup the AI does not replicate it's movement to clients. I know GASP is doing some multiplayer work inside of of the BP with CMC (not using mover), is there an obvious flag I'm missing here?

[crude dew]

Hi, Having a moment and cant remember how the Identical Array node works I want to check 2 arrays for the items and the issue i have is that if the arrays are identical but in a different order they return false. Do i really need to use a For Loop and and use Contains Item to check if 2 arrays contain the same items please?

[astral summit]

Yes, if the index is different, you need to check each element individually.
Therefore, it's best to reconsider your writing style for logic, perhaps there are easier and faster methods

[crude dew]

Thank you

[dark drum]

If the array would only contain unique items and the order isn't important, you can convert to a set and check that way with the various set comparisons.

[gentle urchin]

Even if it did compare same ness per element and not by memory, it would still do a litteral forloop to check it

Probably faster to just sort it and compare it afterwards

[warped juniper]

So, what's the reason I cannot make a blueprint class that inherits from Trigger Volume?

I was working on a system that was too basic to bother doing in C++, but I just found out for some reason I cannot understand, you literally cannot inherit from the class for a BP... weird.

[warm oriole]

What is it you are trying to make? Depending on what you need to can just use a box collider/similar which is functionally similar to a trigger volume.

[warped juniper]

I need a Volume specifically because of the Encompasses Point function exclusive to Volumes

Basically checking if a point in space (not a collision shape or object, important distinction) is in fact within the boundaries of an area

The tricky thing is I can't use simple math alone because I need to check with different shapes for the purpsoes of versatility

Volumes also have the upside of being able to switch between different shapes as needed

@warm oriole WAIT WAIT WAIT

I think I have an idea....

So theorically unreal would tread a sphere radius as degenerate if it has a radius of 0, but if it has a mathematically very low size it could be considered a point in space, right?

[granite nacelle]

Hello everyone, I’m having an issue with localization inside my project. What i did was i exported my language .po file to a website called translatepot for anyone who's familiar with it, but for some reason it won’t localize the string tables even though my widgets and string tables are in the same folder in my project, I’m not sure if the websites the issue, help would be greatly appreciated thank you.

[maiden wadi]

I'm more likely to assume this is your gathering settings. The PO file doesn't care about the source file. All it cares about is the Namespace, Key, and SourceText

[wispy mulch]

there's a few things going on, if anyone has clues on any one of them I'd appreciate it.

[faint pasture]

Show the code for untargetting on enemy death

[granite nacelle]

I thought it would care since the string tables are included inside the widgets folder, also after exporting the .PO file i looked inside it and did see the string tables they're just not translated, so it seems it just skipped them. Any ideas on how i should go about making it work ?

[wispy mulch]

I think the combo sometimes working and not working is an issue with the animation state with floating in the air, but I can't reliably recreate it

[wispy mulch]

hit effect and the jello thing are somewhat related (hit effect does spawn if they are hit from a non-jello state, but once they become jello it doesn't spawn/spawnes in a weird spot)

[maiden wadi]

That's odd. Your stringtable has a namespace set? And you're giving entries unique keys?

[granite nacelle]

Namespace? both key and source string has there own unique info.

[maiden wadi]

Namespace is at the top of the stringtable in editor

[granite nacelle]

Yes they all have their own namespaces

[granite nacelle]

Example: Namespace ST_Notes inside of it there are 8 key and source string

[hardy merlin]

Can anyone tell me why the OnPossess function in my Player Controller BP is no longer firing?

[frosty heron]

multiplayer?

[hardy merlin]

Nope.

[frosty heron]

well did the controller possess a pawn or naw?

[hardy merlin]

Yes, it did.

I checked and it's a weird code problem. 🙁

Player controllers don't call OnPossess in Blueprint.

[frosty heron]

yes it does 0o

[hardy merlin]

No it doesn't.

[frosty heron]

I can assure you I've done many things on OnPossess in bp

[wispy mulch]

circling back to this, if anyone can help

I can rubber duck a little further tomorrow maybe ill revisit it then

[pine carbon]

Where in an animation blueprint should one place a death animation? Dead things should stop moving after they die, and I'm having trouble figuring out the "proper" way of dealing with that.

[frosty heron]

just play montage then

[slender dagger]

montages usually

[pine carbon]

How do I get it to not return to idle?

[frosty heron]

montage section at the end of the frame and loop it.

[pine carbon]

Is that safe on variable framerates?

[slender dagger]

haven't tested it personally but I see no reason why it shouldn't

[frosty heron]

what?

wdym by that

[slender dagger]

basically all you're doing is saying "continue playing this animation from x point" and then never giving it an exit point. If you loop it close enough frame rate should be irrelevant

[pine carbon]

Montage frame rates are usually way lower than the actual game, and the spaces in-between get interpolated for higher framerates, right? If I loop on the last frame of a montage stored at 24fps, is it gonna be jittery at 120?

[frosty heron]

it's not? you are just looking at montage preview frame rate maybe.

it should be as smooth as much as your frame rate allows.

[pine carbon]

Is there, perhaps, a way to snap keys onto Montage section boundaries?

[proper moon]

you can use a montage or just make a blend by bool on a dead state

the blend by bool being the first check, so it overwrites everything else as death has the highest priority then

[pine carbon]

Is one better than the other?

[frosty heron]

With montages, you can have various death animations.

programatically added.

[pine carbon]

I did consider the death state, but that didn't feel like how state machines are supposed to be used.

[proper moon]

u aren't making a new state machine for it

[frosty heron]

nothing stopping you from doing it but montages already done the job

[proper moon]

the only time montages wont be good is when you want to for some reason play another montage

[frosty heron]

For me, locomotion, staggered, stunned -> Anim instance

[proper moon]

after dying

[frosty heron]

knock back, attack, death -> montages

[proper moon]

and it should go back to death state then again (witghout playin that death montage again)

[frosty heron]

nothing stopping someone to play montage after dying though it's weird unless the creature is a zombie.

[proper moon]

or if u just want 1 ending anim for all death montages, like a ragdoll state anim

so they play the motage, and when its over, all go into that 1 abp state

[slender dagger]

you can also look into simulating physics if you want ragdolling (though it's likely you'll have to tweak the physics asset constraints)

or physical animation

[pine carbon]

I meant having it as a state in the existing one.

[proper moon]

blend by bool directly seems much better than that imo

[pine carbon]

The whole point of this is that won't be happening, so no issues there.

[proper moon]

great then u have ur answer

[slender dagger]

honestly though if it's just a simple "play animation then stay dead" looping the montage is the quickest way to implement and will honestly be fine in most use cases

[pine carbon]

Sweet.

Not a fan of the montage editor. It feels clunky.

But, that did work. Poggers.

[proper moon]

what seems wrong with it?

the only thing I can think of is anim sequence blending within montages which is missing and should be added imo

[pine carbon]

Lack of the refit feature like on similar editors, These dropdowns hiding their associated properties for some reason, right click just doing nothing in most contexts, these snapping properties being . . . something. I'm sure they affect something but they don't affect keys and they don't affect section boundaries, so I'm not sure what else they do.

[empty crown]

Hello! Im having a bit of a problem where when I play in my editor, the maps I have load perfectly fine and my character is spawned in the game correctly. However when I play using the standalone tester, my video widget map doesn't play, and my character doesn't spawn into my main map. What do you think might've caused this issue?

[scarlet root]

Play in Editor as "new PIE Window" or "Play in Viewport"

Did you set the Startup map for the game in your projectSettings > maps and Modes?

[empty crown]

Play in editor as new PIE window

Yes! I set up my startup menu as my main menu map

[empty crown]

I did set it up in that area!

[scarlet root]

Can only guess, since for a deeper investigation.. we would need some visual stuff.. like.. your setup of maps and Modes.. world settings..

[empty crown]

I will send it over now!

[empty crown]

here is my project settings: more incoming...

My main menu settings:

My animatic settings

code from the animatic to main level

Code from main menu to animatic level

[empty crown]

Would this be enough?

Main menu world settings:

[scarlet root]

Yes and no..
What is GM_TAH, it is not on your Screenshots, beside set in the Maps and Modes..

Your start level is Lvl_MainMenu..

What GameMode is set in there?

Advices:
1st: you should always add the Header/Title of a Window.. to make it clearer what it is..
2nd: For the future, when sharing Graph screenshots.. use the Graph Printer Plugin (free)

[empty crown]

GM_TAH is the name of my main default game mode, eg basically third person! My game mode for my main menu is GM_MainMenu

I will use that plugin tomorrow to send you new screenshots!

[scarlet root]

Ok.. to make stuff concrete:

Lvl_MainMenu starts your game and has the GM Override to GM_MainMenu.

GM_MainMenu does what exactly in graph?

GM_Animatic seems to be some sort of.. transition GameMode..?
It is in some other map as override.

You open the Level for Animatic by your MainMenu Play Button.

Animatic GameMode then opens the actual level.

Correct?

[empty crown]

Yes! Correct

[scarlet root]

Ok..
When starting Standalone, you get a black screen anf nothing happens?

[empty crown]

My main menu screen shows up fine and everything works perfectly, but my animatic video doesn’t load, and directly loads up my game map.

And then my character doesn’t spawn it in the game map

[scarlet root]

ah - now we are talking 🙂

Ok.. this might be a crazy recommendation.. but..

Use CommonUI - Being precise: use CommonVideoPlayer

After enabling the Common UI plugin:
Create a new Widget containing:

Overlay
   CommonVideoPlayer

You can add functions for playing, pausing and such in the Widget. Even EventDispatchers to return finished state..etc..
Use a variable for the Movie Source, so you can re-use that Widget.

In your Transition Map, Create this Widget and Start your selected Video inside of it.

Your Videos HAVE TO BE PLACED inside Content/Movies/ - This Folder is hardcoded!! You cannot use an other Directory.

To give your Videos even more Compatibility, you also want to enable the Electra player and Electra related Plugins.

Then open your Video in the Content Browser - and at the bottom right you select the Playback being Electra only.

The CommonVideoPlayer in combination with Electra, works much better than the Media Player Actor system..

[dark drum]

Talk about an AI response haha.

[dark drum]

If it's that an external video file that isn't playing, you need to manually add them to the relevant folders in the build directory. It doesn't do this automatically during the build process.

If the map itself isn't loading during a build, make sure it's included in the maps to include in the build settings.

[scarlet root]

?

[scarlet root]

For packaged build.. yes.. Standalone out of editor, no.. just placing the Video inside Content/Movies/

would be nice if we could change the Movies directory to our own one.. or even allow subdirectories..

[dark drum]

Your comment was AI generated.

[scarlet root]

What makes you asume that?

beside using Grazie for Grammar and writing correction.. (instead of the non-free LanguageTool).. no ai..

I am just writing in such a style xD

[slender dagger]

me when I use notoriously terrible websites that don't do their job well to prove a point on a discord server instead of just saying I generated it be like:

[scarlet root]

gimme a better one - was first google hit

[slender dagger]

they're all terrible. That's my point. However it's clear just from the way it's typed. I'm not going to give a full breakdown over discord because it's honestly not that deep, honestly idc if you generate a response, just reads a bit low effort. Like at least put the effort in to actually help someone in your own words

[scarlet root]

It is.. low effort of course.. I am writing fast here, doing it beside my minutes of break pauses 🙂

• i make so much typos and wrong grammar i correct later on or right after..

[dark drum]

Just common phases I often see. 'now were talking' and 'Being precise: use CommonVideoPlayer'

They just seem out of place to me in normal speak but is often how AI talks.

[scarlet root]

understand that ^^
but was typed by hand

[slender dagger]

lmao. If it's just for grammar corrections and stuff it makes sense, but last I checked there are tools that are focused purely on cleanup without adding AI fluffspeak. Idc all that much but there are online corners that will tear you to shreds over it lmao

[scarlet root]

Unfortunately, I can't help my writing style. 🤷‍♂️
Just want to try to write nice to people (at least before they annoy me)

I think it is sadder to get on a text with "this has to be AI written cause it is written as......"

sad times today..

[slender dagger]

yeah it's honestly no biggie lmao. Apologies if it sounded like I was giving you a hard time. My deadline stress still hasn't really settled yet lol

Honestly though the random capitalisations and the punctuation are usually dead giveaways for AI generated text

[scarlet root]

i currently got 15 Minutes of spare time.. god bless.. need coffee

[scarlet root]

German writing english fast 🏎️

😂

[slender dagger]

mate I had my deadline tuesday night, barely got it submitted after staying up for like 50-ish hours and I'm still tired lol.

Kinda glad though because that deadline all but reaffirmed that unreal is way better than unity at least for me.

Speaking of I should probably go for a coffee

[scarlet root]

to be precise (yes - again 😝 ): fast and out of the moment. Not thinking that much about being correct in grammar and typos at that point.

[lost wolf]

i think ur right he might be AI

"I'm not AI " is what an AI would say that is pretending not to be an AI

[dark drum]

To be fair, if English isn't your native language and you're using software to help, that'll probably be the reason why. I'd imagine alot use AI these days.

I've just come hyper attuned to spot it. 😅 There's certain ways of talking that out never really see outside an academic papers.

[scarlet root]

Hmm.. maybe.. last week I failed the "Are you human" Check of Discord Quest.

[lost wolf]

AI speaks like incompetent middle management mixed with an african service desk representative that speaks english very well

[slender dagger]

I was the same until it clicked English isn't his first language. After that realisation it explains a lot

[dark drum]

If you're ever a little bored, just prime your AI agent to speak in cockney slang. 😉 you're in for a wild ride when it's explaining something about UE.

[lost wolf]

I dont lookat the language being used

[slender dagger]

I HAVE TO try this

[scarlet root]

Need to say: I speak better than I am writing. Maybe direct P2P conversations are running better through the processor on my Mainb.. BRAIN!

[lost wolf]

You have to instruct your agent to call you solid snake, to interject his thinking with random rants where he agressively swears about goats

i swear to god this improves the programming skills of your agent with over 9000%

you bypass all the bad training

by hacking into its core

[slender dagger]

my personal favourite is asking them to randomly interject in all caps random words or phrases from pantomime scripts and then continue as if it was never typed

Genuinely the funniest things I think I've ever read

non-brits are in for a shock when they discover panto lol

[lost wolf]

i might have instructed our shared work ai to do the above without turning it off or telling anyone

bossman taught he had lost his mind

[slender dagger]

pmsl

[lost wolf]

yes the AI did call him a goat fuck boi

[slender dagger]

can't wait to do that for my next dev log lmao

thought I'd try something new...

[slender dagger]

greatest suggestion ever btw

[scarlet root]

ValidatedGet is my best Friend 😄

[scarlet root]

OMG - found out the reason for my FPS to drop by around 20 when running around on my test-level, without anything inside of it.

One should not draw a 4K RenderTargetTexture of a FlowMap, each 10 ticks...

[narrow sentinel]

Does anyone know if the Gameplay Messaging System is present nativly in 5.6 or not ??

[scarlet root]

It is a Plugin that comes natively with UE, yes

hidden gem imo

[narrow sentinel]

put it's only in 5.6 onwards, cause I can't find plugin anywhere in 5.5

[scarlet root]

you may can try to copy the plugin over from 5.6 into your 5.5 project.
Open the uproject file in a txt editor and change the Engine version accordingly, then build from source.

if it does not rely on 5.6+ code and only is just implemented from 5.6 upwards with own source, it should not be a problem.

cause it is always possible to have a plugin in a newer version, not available in 2-3 versions below, cause they didn't want to make the extra step

[rare shore]

Hello! I just want to ask 1 basic question, what do you guys use to save the game to google play store? There are tons of different information online and everything is so complex, isnt there a simple way to make players sync save files to the google sever up and down? PLS anyone

[lost wolf]

a 4k flow map has an insane amount of cells

but i was able to run my fluid simulation that uses multiple render targets with 100-300 passes each frame depending on the accuracy in 4k at 300fps when not using unreal

[scarlet root]

nope.. only 128*72

reason - i am stupid xD

[lost wolf]

you do realize that each pixel is a cell

[scarlet root]

the Rendertargettexture got rendered by gridResolution * CellSize... which..is dumb...

[lost wolf]

lol

[scarlet root]

and yes.. i realized it .. that's the reason i posted..

a 128*72 pixel RTT would be enough

[lost wolf]

ever considered using 3D textures

texture arrays (same thing)

[scarlet root]

for what?

[lost wolf]

for 3d flow maps

[scarlet root]

don't need

only using XY

i also only generate a RTT with RTF RG 16f.. no B or A

[lost wolf]

are you solving it on the gpu

the flow itself

[scarlet root]

you mean the particle movement? or the actual generating?

[lost wolf]

determining what direction the particles need to flow in

like generating the actual flow map

[scarlet root]

current code

[lost wolf]

yeah so the pathfinding is on cpu

[scarlet root]

The code is nothing special.. wrote it 2 years ago.. and currently try to adapt it for a pathfinding system..

it originally was meant to work for material effects only

[lost wolf]

you can do it in shaders

[mighty cipher]

hey folks. can you have pure functions as part of an interface in blueprints?

[scarlet root]

no

[mighty cipher]

chatgpt gaslighting me again

[scarlet root]

I know.. I also thought about using Iterative Relaxation...
Scene Depth is much faster than my traces, totally aware of that.. my code is old.. I won't rely on that.. but it is my current dummy to make the particles move 🙂

• I also will have some normal actors that need to follow the Flow Field, and I currently have no clue (and do not read into that) how to drive AddMovementInput with a GPU approach.

[narrow sentinel]

i'm happy to move to 5.6 just wanted to make sure it's defo native cause I've read here and there its something apart of lyra and don't wanna be pulling in for example lyra just for one thing

[scarlet root]

if you can move to 5.6, you can also move to 5.7 🙂

the difference is not that big

[scarlet root]

last time i wrote an usf was in 2018 🙈

[narrow sentinel]

how many bugs etc is there in 5.7 though as isn't that the latest engine version ?

I normally try stay one or two versions from the latest version to ensure against any major issues latest one has

Also I use source control so could I move my engine version up without making a copy of the project out of interest

[scarlet root]

It depends...
In my opinion, I haven't found any bugs yet, but I also don't use all the features.

[narrow sentinel]

I would think cause I use Source control I can just revert the engine upgrade process if needed can't I

[gentle urchin]

5.7 seem good so far

[narrow sentinel]

awsome I'll go to 5.7 then and if it be so I can always revert back to 5.5 and go up to 5.6 if needed

[gentle urchin]

Given that perf is still subpar but oh well

[narrow sentinel]

prob should have gone to 5.6 first but hay ho haha

[narrow sentinel]

yeah I don't think I ever expect that to improve

[gentle urchin]

4.26 was a blast

[narrow sentinel]

defo seems Epic are going down the road of UE being more of a Live production tool then Game creation tool

just with for example the feature highlights they did for 5.7

out of interest is there a way to install engine symbold for debugging after installing an UE version, forgot to tick option before installing 5.7

[scarlet root]

While coding - this shader would be 1 pass..
I doubt this works as "pathfinding" and more like a "guess he is there".. not avoiding dead ends or turning when the player moves away 🤔

[narrow sentinel]

oddd its decided to stop randomlyu

[scarlet root]

maybe some background cleanup..

[narrow sentinel]

Update Project Files (C++ Projects):
Modify Target.cs files: Open your project's .target.cs files in the Source folder. Update BuildSettingsVersion to V6 and IncludeOrderVersion to EngineIncludeOrderVersion.Latest or EngineIncludeOrderVersion.Engine5_7.

is that step correct out of interest when upgrading project to 5.7

i'd imagine I'd alter them in the IDE and not in a text document

[gentle urchin]

Ye

.Latest is what i run with

And just fix whatever comes my way

[narrow sentinel]

seems to be compiling apart from it moaning about Visual studios version not being latest something like that but see if that comes up as error at the end

I do seem to have that error though

[gentle urchin]

Got the project set as default ?

Had to fix that from time to time

Never with Rider tho

[narrow sentinel]

is that right ?

moaning about V6 bit

unless I leave it set to V5

[gentle urchin]

Buildsetting also Latest for me

[narrow sentinel]

arr didn't realise I could use latest for both of them, do that instead

[gentle urchin]

Im lazy like that

[narrow sentinel]

time to see if editor opens or not

ermmm

5.5.4

pretty sure I should be seeing 5.7 there

[gentle urchin]

😂

Clicked wrong ?

[narrow sentinel]

yeah it defo aint launching 5.7

so any idea what I need to do here ?

I assume process would be same regardless of IDE

[gentle urchin]

Right click uproject -> switch engine version

[narrow sentinel]

yeah done that

and then what ?

any folders I need to delete etc

[gentle urchin]

Not really

[narrow sentinel]

so I don't need to click generate project files before opening IDE ?

[gentle urchin]

Pretty sure it does that already but worth a shot i guess

[narrow sentinel]

this is coming up which never did before

[gentle urchin]

Got some background instance running ?

[narrow sentinel]

maybe not sure just fixed one plugin missing from engine see what happens in Rider now

[mental trellis]

IDEs can run UBT on their own in the background which can interfere with stuff.

[narrow sentinel]

that might of been why I was getting that error then on previous attempts

hmm only thing I'm getting at the moment is some cpp issues

for example this

0>BaseNPCController.cpp(171,22): Error C2079 : 'Request' uses undefined struct 'FSmartObjectRequest'
0>    FSmartObjectRequest Request;
0>    

I've included relevant thing so not sure why it's moaning that it's undefined and the FSmartObjectRequest is incomplete

sorted it seems in UE 5.7 theres a new include needed for that

[mental trellis]

👍

[empty crown]

Would this also fix my character loading/spawning issue?

[narrow sentinel]

out of interest when it comes to attribrute sets are these meant to live I assume so I'd have to create the object and then add the attribute to the relevant ability system component ?

[scarlet root]

Kinda.. you don't add 'the' Attribute, but 'All' Attributes of the Set

[narrow sentinel]

well i'm running this for now on begin play but obvs cause it's not on the player character I feel like the debug thing is not seeing it

APawn* ControlledPawn = GetPawn();
    if (AbilitySystemComponent)
    {
        AbilitySystemComponent->InitAbilityActorInfo(this, ControlledPawn);
        
        /** Create Attribute set objects */
        UAttributeSet* PlayerVitals = NewObject<UPlayerVitalsAttributeSet>(this);
        
        /** Adds objects to Ability System Component */
        AbilitySystemComponent->AddSpawnedAttribute(PlayerVitals);
    }

i'd do this in Bps normally but apparently attribute sets aren't supported fully on BPs

[empty crown]

I got it to work! There were just some issues with the delay. But my character still doesn't spawn in

[narrow sentinel]

so currently my issue is around I can't debug the player controller so can't see the attribrutes I have on it

[scarlet root]

the character is set as Pawn in the GameMode?

[narrow sentinel]

so i moved ASC to the player character, silly question though is what and where would I bind to get feedback on when attributes have changed, I can't seem to find the right Delegate to bind to

[scarlet root]

there is none - you have to create it by yourself

in your AttributeSet, you normally add the Override for PostGameplayEffectExecute

Inside check what attribute changed and call a Handle<Attribute>Changed you have in your ACharacter class.

And the ACharacter then should have a On<Attribute>Changed Function, with the UFUNCTION property BlueprintImplementableEvent, to make it an event you can add in BP

[narrow sentinel]

how would I check what Attribute changed

nvm it has data into it

so google is telling me to use this at the moment on the character side

AbilitySystemComponent->GetGameplayAttributeValueChangeDelegate()

[scarlet root]

Example for Health attribute...
In your AttributeSet Header:

    UPROPERTY(BlueprintReadOnly, Category = "GAS|Attributes|RPG_Basic", ReplicatedUsing = OnRep_Health)
    FGameplayAttributeData Health;
    ATTRIBUTE_ACCESSORS(UUYourAttributeSet, Health)

In your AttributeSet cpp:

void UYourAttributeSet::PostGameplayEffectExecute(const FGameplayEffectModCallbackData& Data)
{
    Super::PostGameplayEffectExecute(Data);

    FGameplayEffectContextHandle Context = Data.EffectSpec.GetContext();
    UAbilitySystemComponent* Source = Context.GetOriginalInstigatorAbilitySystemComponent();
    const FGameplayTagContainer& SourceTags = *Data.EffectSpec.CapturedSourceTags.GetAggregatedTags();

    float DeltaValue {0.f};

    if(Data.EvaluatedData.ModifierOp == EGameplayModOp::Type::Additive)
    {
        DeltaValue = Data.EvaluatedData.Magnitude;
    }

    AYourCharacterClass* TargetCharacter = nullptr;

    if(Data.Target.AbilityActorInfo.IsValid() && Data.Target.AbilityActorInfo->AvatarActor.IsValid())
    {
        AActor* TargetActor = nullptr;
        TargetActor = Data.Target.AbilityActorInfo->AvatarActor.Get();

        TargetCharacter = Cast<AYourCharacterClass>(TargetActor);
    }
    
    #pragma region Uncategorized
    #pragma endregion

    #pragma region RPG_Basic
    // The Characters's Health
    if(Data.EvaluatedData.Attribute == GetHealthAttribute())
    {
        SetHealth(FMath::Clamp(GetHealth(), 0.f, GetHealthMax()));

        if(TargetCharacter)
        {
            TargetCharacter->HandleHealthChanged(DeltaValue, SourceTags);
        }
    }
[....]

Then in your Character Class Header:

    UFUNCTION(BlueprintImplementableEvent)
    void OnHealthChanged(float DeltaValue, const struct FGameplayTagContainer& EventTags);
    virtual void HandleHealthChanged(float DeltaValue, const struct FGameplayTagContainer& EventTags);

And in the Cpp:

void AYourCharacterClass::HandleHealthChanged(float DeltaValue, const FGameplayTagContainer& EventTags)
{
    if(bAbilitiesInitialized)
    {
        OnHealthChanged(DeltaValue, EventTags);
    }
}

repeat for all your attributes again

(ignore the pragma regions.. directly copied from my code)

[narrow sentinel]

so out of interest why would you be settings the health ?

would that already have not been done prior this function being ran ?

[scarlet root]

You don't set health directly

[narrow sentinel]

arr i see

[scarlet root]

you do it via GameplayEffect

as everything

[narrow sentinel]

what going to say cause I have gameplay affect slowly reducing it at moment

[scarlet root]

the only attribute you maybe set directly, is levels

i find the GAS setup so tedious, that i build a plugin to handle that for me 😅

[narrow sentinel]

so my next question is within the on health changed but for me its on oxygen changed, is the delta value the new value of for me oxygen for example ?

or would I need to pull from the attribute set object the value

[scarlet root]

gimme a sec

should be the new value..

i on my end don't rely on that DeltaValue, and directly grab my Health value from my character..

[pliant snow]

Im new to this server, which channel can i go to ask for help?

[scarlet root]

depends on the problem

[narrow sentinel]

so for now I'm pulling the oxygen and max value from the attribute object which is living

[pliant snow]

Third Person Shooter Recoil functionality

[scarlet root]

yes.. but.. what problem...?

[pliant snow]

Can i post a 30 second video so u can see the problem? quicker than explaining

[pliant snow]

In short, for my recoil, im adding a rotation onto the player's camera instead of using a random spread within a radius like Fortnite or or pre-set spread like CSGO. The way im doing it right now is great for FPS games but for a TPS the rotation of the camera leadfs to issues. The player can easily leave frame if a gun has a large enough magazine or has high recoil. Its easier to show than to explain, but i hope you kinda get the gist?

[scarlet root]

quick Mods

[gentle quartz]

Quick question, I am trying to disable my Crafting button if I don't have the resources available.. this is my code... but now when I don't have the resources my crafting button is enabled... I want it to be disabled until I have the resources.. If you see any flaws in my code or have any suggestions let me know.. I really need to get this sorted out its been driving me crazy

[noble canyon]

Does anyone know how i can make a first person swimming player movement

I will make the game be underwater but i genuinely cant make the character go vertically

All the tutorials use third person blueprints so they are different

[crimson briar]

This should be >= perhaps? Just a guess though, not sure how you stack your items in the inventory

[gentle quartz]

That wasnt it. Thanks though.

these are the resaults im getting

Swear I've tried everything. Just can't get it working properly

[crimson briar]

Then you need to debug. Start printing variables and branches to track down the breaking point

[lofty rapids]

acutally i think you want <= here because you have the quanitity at the top and your checking the amount comming in right ?

so if you wanted >= you would flip the top and bottom ?

or am i not seeing it correctly

[gentle quartz]

correct

let me try that

[gentle quartz]

That was it!

[cobalt bramble]

does anyone know why my spline loses its nice curvy when i alt drag out a new point. anyway around this? always gives the most accurate shape with two points but when more are added it always ends up messy

[maiden wadi]

Need to see the code.

[lost wolf]

if you want to have a smooth spline without hard corners then it needs to adjust the handle of the end of the first segment to be 180 degrees with the first handle of the second segment

[wispy mulch]

I tried separating my combo attack into an actor component, but even when I made the component implement interfaces necessary for attacking it doesn't seem to work properly
I know interfaces and ACs are tricky but idk how to hook them up properly

[pulsar geode]

Hey everyone, I have been experimenting with Level Streaming in UE5 using Level Streaming Volumes and even with smaller sized levels I am noticing a short "hitch" or lag spike when the new level is loaded.
Is there a way to decrease this without shrinking the loaded level? I assume there must be some way to increase the async loading time to make it less noticable.
I messed around with several of the settings in the Level Streaming sections of Project Settings but increasing all of the async timers here didn't seem to change much. Is there something I am missing?

[faint pasture]

The spline is still curvy, its your spline mesh that's not

spline mesh can only have 2 keys afaik

you need multiple spline mesh instances here

[empty crown]

Hello! This is an urgent issue, as this project is for a game jam and needs to be submitted very soon (today). My team and I are trying to package the files but we keep running into the same error: Unknown Cook Failure.

So far we have tried: deleting saved folder, derived data cache folder, intermediate folder. Fixing file redirections in content drawer. Checking important blueprints such as gamemode, etc. Checking unnecessary plugins. Microsoft’s Copilot told us that the error happened after the cooking step.

I have attached our output log. If there is any way you can help, it would be greatly appreciated.

———

LogCook: Display: Done!

LogSavePackage: Display: Took 0.018297s to verify the EDL loading graph.

LogInit: Display: Finished.

LogInit: Display:

Execution of commandlet took: 1m 17s (77.96 seconds)

LogShaderCompilers: Display: Shaders left to compile 0

Took 92.62s to run UnrealEditor-Cmd.exe, ExitCode=1

SafeDeleteFile C:\Users\ASUS\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.7\Cook-2026.02.20-00.27.51.txt

SafeCopyFile C:\Program Files\Epic Games\UE_5.7\Engine\Programs\AutomationTool\Saved\Cook-2026.02.20-00.26.18.txt C:\Users\ASUS\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_5.7\Cook-2026.02.20-00.27.51.txt

SafeDeleteFile C:\Program Files\Epic Games\UE_5.7\Engine\Programs\AutomationTool\Saved\Cook-2026.02.20-00.26.18.txt

AutomationException: Cook failed.

at AutomationScripts.Project.Cook(ProjectParams Params)

at BuildCookRun.DoBuildCookRun(ProjectParams Params)

at BuildCookRun.ExecuteBuild()

at AutomationTool.BuildCommand.Execute()

at AutomationTool.BuildCommand.ExecuteAsync()

at AutomationTool.Automation.ExecuteAsync(List1 CommandsToExecute, Dictionary2 Commands)

at AutomationTool.Automation.ExecuteAsync(List1 CommandsToExecute, Dictionary2 Commands)

at AutomationTool.Automation.ProcessAsync(ParsedCommandLine AutomationToolCommandLine, StartupTraceListener StartupListener, HashSet`1 ScriptModuleAssemblies)

==============================================================================

AutomationTool executed for 0h 2m 37s

AutomationTool exiting with ExitCode=25 (Error_UnknownCookFailure)

[slender dagger]

do you have VS installed?

[empty crown]

Yes I have visual studio 2022 installed

[slender dagger]

do you have these packages?

[empty crown]

Yes I do

[slender dagger]

is that everything in the output log?

[empty crown]

That is the last 300 or so lines

[slender dagger]

a cook failure is quite broad in what it could be afaik. It'll tell you what's wrong in the output log somewhere.

Obvs don't copy the full thing in if your file paths have any sensitive info like if you're on a networked drive but if you go through you can quickly filter which lines might be pointing to an issue

maybe #packaging might be of more help

[empty crown]

Ok thank you!

[frosty heron]

You need to look at the first error. Normally marked with red text.

[twin needle]

Probably a simple question but to my understanding the Construction Script runs when an actor is created while the EventGraph runs when i press play. Is there any way to have a blueprint active without pressing play that also updates when I make changes to the variables of the actor?

Because what I did in the screenshot in the construction script works initially but adjusting the float variable doesn't change the size of the debug circle.

[pine carbon]

Is there a way to do a "Find References" for an entire actor or actor component?

[maiden wadi]

What are you trying to do?

[crimson briar]

Any change to the instance of this actor in level should rerun construct. Do other things like moving it run it correctly?

[maiden wadi]

Do you even see a circle at all? You have no thickness or duration.

Really wish the debug system had a handle system so you could update or remove a specific debug draw without flushing them all.

[twin needle]

Omg maybe it wasnt the circle i was seing but a leftover from my previous attempt 😂

But knowing it should work already helps a lot, ill have to check on monday when im back at work

[pine carbon]

Find anywhere a depreciated actor component is used.

[gentle urchin]

Mark it deprecated , then engine gives you warnings doesnt ir

[pine carbon]

Only in graphs that I have open in the editor.

[gentle urchin]

Ah shiet

Well reference viewer then

[errant snow]

If that's the case, you can probably run the CompileAllBlueprints commandlet and you'd get all the errors from the blueprints with that component.

[pine carbon]

Didn't know that existed. That should work nicely.

[gentle urchin]

Any pro tip on how rts / city builders usually do roads ? I was thiinking something along the lines of some world material manipulation, 'drawing it' on the actual world material ... how dumb would that be

[stable birch]

Probably a landscape that gets drawn on

virtual textures stuff I'd assume

[wispy mulch]

I'm using these variables no where else but here

but for some reason the default values and the values at execution time are completely different

[dark drum]

I'd imagine some sort of displacement on the landscape and then a mesh for the road.

I guess it depends how close you want to allow the player. Might be too detailed if far away.

[dark drum]

Check the values on the instance placed in the level.

[gentle urchin]

very

xD

slight displacement and possibly a road mesh might work, but virtual textures sounds easier from the get go

otherwise there'd be so many types, wouldnt it?

gridless map, intersections and whatnot

[maiden wadi]

PCG recently added spline mesh support. Might be something there that could be useful if you wanted to carelessly just throw splines around where they should be.

[wispy mulch]

that was it. AC default values vs. the values set in the component of the character BP were different

thanks

[modern cove]

I have a door object that I want to act differently when the player is on its right vs on its left. Is the better general practice to: Use a World Location Comparison check, or to set up 2 Hitboxes on the sides?

[faint pasture]

Check sign of DotProduct(PlayerLocation - DoorLocation, DoorRightVector)

swap door right vector with door forward vector depending on your layout

or inverse transform position of player to get its position relative to door in doors reference frame, then you can just check its x or y

[modern cove]

I could. Also probably should have mentioned: It's a 2D game, so there's no Y to compare; just X

[torn python]

On loading into my level I'm trying to add a fade in effect so the player doesn't see the level loading.

I tried putting this in the player controller and level BP and it still is flashing the level before doing this fade in widget animation

[maiden wadi]

My initial guess would be slate prepass for a couple frames maybe? Does it work if you make an actual CameraFade call?

[torn python]

Nah sadly this didn't fix the flash of the level first either :/

[maiden wadi]

Hmm. Dunno. I don't have to fight that anymore. 😄 We're running CommonLoadingScreen, so game world never gets shown til we want it to be.

[torn python]

I'll check that out, ive tried async loading screen but it was buggy at times

[maiden wadi]

CommonLoadingScreen is just a widget that isn't removed during the level transitions automatically until things are ready.

AsyncLoadingScreen I wouldn't personally touch anymore. We used the same underlying tech in Red Solstice 2 and fought a lot of rare bug crashes in it from the movieplayer running slate's tick.

[frosty heron]

Yeah, as mentioned you need widget tgat lives through lvl transition.

Theres no event you can hook up fast enough. And that delay will even be more apparent in client, like a couple seconds because it takes time for server to give a client a copy of the controller.

Use CommonLoadingScreen from lyra and start fading out when ready. E.g when the controller possess a pawn.

[torn python]

Got the Lyra CommonLoadingScreen working - thanks for the tip! ❤️

Now the only bug I see is that it loads between all levels now like my boot screen -> main main etc.

Is there better documentation you can point me to so I can see how to turn it off for like the boot screen -> main menu for example?

[woven saddle]

any obvious disadvantages to using a Map variable type to handle a small database? It seems to work for what I want but wondering if I'm missing any gotchas here

[frosty heron]

I actually only copy the code partially so i dont even know the full extend on how they work :D.

Like the only thing i did was turnung the widget into a shared ptr, so it doesnt get destroyed on level transition.

The rest of the logic to display, fade out, fade in is handled in my own game instance subsytem.

[frosty heron]

If index matter then map isnt the tool.

Fot a key pair value use case, sure just use it

So what to use is really depend on the data structure

[woven saddle]

Can't the index = key?

if I want to look up index 2 I'd look up key 2 on the map no?

I know key is a name variable but you can just convert an int to string and then to name

slightly janky but seems to work

[frosty heron]

Index as in the list number

0, 1 , 2 , ...

[woven saddle]

yeah that's what I mean

[frosty heron]

If ordee matter then map isnt it.

Also key in map cant be a duplicate.

Thats pretty much what you have to consider when using map vs array.

The data base i know uses map though. But the key is the primary key which is just numbers in order.

[woven saddle]

I'm not sure if it makes much difference but it's a Map of a database

[frosty heron]

The idea is to make a pair.

Having a key as number doesnt make sense in general context.

[woven saddle]

I think it'll be fine on this end methinks but I appreciate the extra info, it's a fairly simple usecase so I think having it as an array of multiple variables works on my end

[dense charm]

Has anyone done this before? it's very smooth except for like 1-frame glitch that looks awful

[narrow kite]

Anyone have a quick tip on using Spawn System at location (niagara effect), but forcing it to be played on the floor (elevation, z axis)?

Solved: Line Trace by Channel (use out hit location). End 0,0,-3000 (Negative to go down otherwise you will find the ceiling, don't ask how I know that 😉

[dawn gazelle]

Just a guess, but you may be able to clean it up by setting the player controller's control rotation to match the view target's rotation before possessing.

[nova kelp]

Hey all, I'm Seb, and I'm still very very new to Unreal.
I'm facing something that I really don't understand. I'm trying to drive a text on a UMG BluePrint the "correct way" but I'm missing something.

Here is my setup: I have a train on a spline, and of course train stations along it. When the train enters the station, through a Begin Overlap event, I trigger my BluePrint Interface "OnEntering" and send the name of the entered Station.
In my UMG text graph, I have an OnEntering Event to set the name to the text field.

Both The station BP and the Text BG have my BPI set as Interface.

Using a good old Print, I can verify that the Begin Overlap is properly triggered and the station name is correct. But on my text widget, the OnEntering Event is never called. So I must be missing something, but I can't figure what.

When I started working on the game a few weeks ago, I build another text widget that is working, a the time using a function binding, but it uses a Cast, which from what I'm understanding is not a great solution.

So my question is: Am I doing the BluePrint Interface wrong? Should I be using casting nodes instead? Or is there another solution that is preferred?
Thanks a lot for your help!

[frosty heron]

another victim trying to replace cast with interface

@nova kelp what implements the OnEntering function?

[nova kelp]

@frosty heron Just an Interface. Basically created the new BPI, renamed the function and added an input to store the name.

[frosty heron]

I'm not talking about the interface it self but the objects that inherit the interface.

you want to use interface when you need common method for objects that doesn't share the same base class.

You basically need to plug the object / actor that inherit the interface as the target.

[maiden wadi]

This talk never gets old. 😄

[nova kelp]

Oh my bad, sorry english is not my native language 😅 The target is a text in a UI Widget

[frosty heron]

you are not passing anything as the target here. So it pretty much does nothing.

[frosty heron]

No, that's not the target.

booting editor brb.

[nova kelp]

Yeah I think that's where I'm missing some basic understanding

(So sorry, it feels like it is a common issue that I have failed to properly find a solution for on Google)

[frosty heron]

No one understand from the get go, well I know I don't.

took a while to get these concepts to click.

[maiden wadi]

In short. You should just cast it for the moment so you have an understanding of what it's doing.

Is this textblock showing that something is in the station like a train, or the player?

[frosty heron]

@nova kelp where is this? can you show full screen shoot uncropped.

need to look at the class at the top right corner.

[nova kelp]

@frosty heron Here you go:

[frosty heron]

Ok so here, you need to pass reference of the widget as the target.

[nova kelp]

@maiden wadi This text block is supposed to display the name of the station (stored as a viariable in the BP) when the train (my Pawn) enters said station (I have a collision box at the entrence of the station)

[maiden wadi]

Should place that on the local player's playerstate and let the UI pull it from there.

Player(you) enters station. CurrentStation gets set on their PlayerState. UI pulls CurrentStation->StationName to set in it's textblock.

Bonus points for making this a setter in the PlayerState with an event dispatcher.

Or the pawn. Pawn or PlayerState really. Maybe doesn't matter so much depending on your game's context.

[frosty heron]

Since "correct way" brought up, I would totally vote for event dispatcher

that way, anything that needs to know about Station name, can react to the change.

[nova kelp]

I'll give event dispacher a try then. I thought BPInterfaces where what we are "supposed" to use to send event to be honest. So my question is, when should I be using an Interface vs a Dispatcher?

Also, if I try to pass my WDG_NextStation as a reference the only node that I can add is a Cast (which is what I was trying to avoid) @frosty heron . I feel I need to go through more tutorials 😄

[frosty heron]

casting is just a type check.

you still need to plug the reference to the cast.

[maiden wadi]

In general. Interface should be one of the last things you consider using to send an event.

Your question doesn't really make sense because they're completely different cases.

An interface is a single event being sent to something without caring about it's type or if the thing even uses the interface.

An event dispatcher is a registration service that calls you back when something important happens. A subscriber(your widget) asks(binds) the dispatcher to send it a message. The dispatcher can then be used to broadcast a message to anything listening.

[nova kelp]

Oh got it. I think I got the two confused. Because dispatcher is effectively what I was trying to achieve using interface

[frosty heron]

@nova kelp

1. Create an actor component, call it AC_StationInfo.
2. In AC_StationInfo create a variable called Station Name. Type is string.
3. Still in AC_StationInfo create a function called SetStationName with input string InStationName.
4. Create event dispatcher called StationNameChange with a string output.
5. The function set the value of StationName, then broadcast StationNameChange.
6. In your Player Controller, add AC_StationInfo.
7. In your widget that wants to show the station name. Get a reference to your player controller -> Get Component By Class (AC_StationInfo).
8. Here you want to bind to StationName Change to a function.
9. That function set the text of the widget and you are done here.

[maiden wadi]

Conceptually speaking, you should put the station name or even better a CurrentStation pointer in your Pawn or Playerstate. Because you don't want your widget to need to bind to 3-35569 stations just to listen for an event from them. It's a singular concept of where your pawn is. So it belongs to the pawn or it's associated playerstate.

The Station can be used to tell the Pawn or Playerstate that this has changed, but then your widget only needs to bind and listen to one thing, the pawn or playerstate because that's where the data makes sense.

Or a component like Cold suggests. 😄

[nova kelp]

Thanks a lot to both of you. I’m gonna try your suggestions tomorrow after a good night of sleep. I’ll let you know how it goes.

[frosty heron]

if you are still here, I am compiling the blueprints

[gentle urchin]

Are you telling me NOT to do GetAllActorsOfClass->BindToCustomDelegate???

Everyone binding to everyone so i can send global message from any class , thought i was pretty genius here

Btw my fps is staggering

[frosty heron]

@nova kelp

@nova kelp

[nova kelp]

@frosty heron Excellent !👌

[frosty heron]

if you are stuck just ask around, but I recommend watching https://www.youtube.com/watch?v=y4fE2JdFdvY to understand event dispatcher.

[nova kelp]

Thanks a lot. I’m still early in my journey learning Unreal, but modular, event based building is what I’m trying to achieve to avoid dependencies, so I’m slow. This is super helpful, thanks again 🙏

[fathom spindle]

hi all, does anyone know why the branch filter in the layered blend per bone node in the new metahumans face post process anim bp doesn't work anymore? I'm trying to set it up so that anything above neck_01 in the heirarchy gets copied from the body skeletal mesh, and only bones including and below neck_01 apply the face animation. this worked fine in previous versions of this animBP so not sure what i'm doing wrong. no matter what im doing wrong. one clue possibly in the fact that changing the blend weights 0 has no effect unless its exactly 0.0, anything above that is fully on for the whole skeleton. anyway, no branch filtering or blending appears to be taking place no matter what i try. appreciate any tips.

[maiden wadi]

https://tenor.com/view/this-is-not-gonna-end-up-well-gif-9653372

[maiden wadi]

No joke. I love that you took the extra time to put a Niagara marker on this instead of just making the collision visible. 😄 Neater.

[frosty heron]

right I could just make it visible 😄

[proper moon]

is there no way to ignore components for a trace in Bp like C++?

[gentle urchin]

And just do yourself a favor, never store references in the gameinstance 😆

[frosty heron]

Save game object being exception? :3

[normal raft]

any one know whats going on with this
that actor is BP_GCBuilding .. for what ever reason if i search for as a specific class it doesnt get returned, if I search for by actor/tag it returns but then proceeds to not work ??
why isnT GetAllActorsOfClass working correctly?

its also placed in the level so it does exist

[maiden wadi]

Would need to see the thing you have placed in the level. And you're not doing level composition or anything?

[normal raft]

this is the thing that is placed in the level

[maiden wadi]

The only way the above fails is if you have an actor that is not a BP_GCBuilding with the GCB tag on it.

Realistically. Since you expect it to be that type. You should always use the class scoped GetAllActorsOfClassWithTag. Non class variants are much slower.

[normal raft]

yeah it finds it find by TAG alone but the minute i am asking for it by Class alone it then retuns None and so does the tag version of that ... so i was wondering if its getting confused because when i type out BP_Building it shows only one other bp class that has Building in its name

[maiden wadi]

Can you show what you have placed on the level? It's details panel?

[normal raft]

np will do just goto reup the coffeee all quick

[frosty heron]

show the info that actually matter.

like the tag

[normal raft]

how is the tag relevant it fails on GetAllActorOfClass regardless of the tag

[frosty heron]

GetAllActorOfClassWithTAG was the issue?

[normal raft]

no i was just mentioning it will find it by tag

GetAllActorOfClassWithTAG also fails

[frosty heron]

in your level blueprint, drop a reference to the placed BP_GCBuilding, then print the class.

[normal raft]

ok

[normal raft]

oh my

grah that was unfortunate

all caused by a silly typo and duplicate

One version called _Bulding and one called _Building in separate folders and the ones in the level where the Bulding ones

[narrow kite]

The projectile niagara in this case is not updating on BP_NS_Projectile. Both variables are Niagara system objects. I verified the variable setting it displays the correct niagara system name. It's just not passing it to the other blue print.

I have a working version of this in another section where the only difference I can see is in that case it's a character BP instead of actor BP.

If you put a cast to BP_NS_projectile it seems to correctly state that isn't needed because it's already that. Because that is already the class being spawned in the image. Unreal also doesn't show target errors etc. So they should be matching.

In this example it works. One main difference is there is a parent/child relationship here so the class is a child of the mastery enemy character. That's why in this case the casting is set.

Shouldn't I be able to update the variable in the top image since I am creating an instance of the BP_NS_Projectile and have a direct reference to it. (Like you would get from overlap actor for example)

This is showing/proving it is a correct reference variable from BP_NS_projectile. That's how it's pulling the default name chaos explosion. That is the only place that variable default exists and it shows it's reading it.

That image is from the master enemy blue print. Everything shows it should be linking and identifying the correct BP. It's just not actually passing the value. (Which again from print string shows the correct new name as (attack line)

[narrow kite]

I created the page again from scratch and simplified a few things, but the same issue persists.

The variable still does not pass. It has the default value set. It does play the correct niagara effect, but only because I manually set it here. I can't attack the variable to properly set it because it's not updating.

The new page has fix on the name. This is the cast to showing it's already casting to the correct BP.

It's essentially saying the return value is the same. Essentially it's already cast to that specific instance.

[proper star]

Hello everyone. Is there a specific place to ask for help? I just joined and read the community guidelines, but it didn't specify if there was a channel or preferred way of doing so. Thought I'd ask before I post here. Specifically, I have a cooking error which seems to be coming from a blueprint, but I am not sure what is causing it. Thanks!

[proper moon]

send the log

[proper star]

@proper moon thank you! This is the issue.

While the blueprint itself compiles fine, if I copy paste the entire blueprint in text I see there is an error 1 with one of the nodes, which apparently is fatal during compilation. The blueprint is here:

For reference, this project has been ported from UE 4 all the way to 5.5, then 5.6 and 5.7 We only noticed the issue from 5.5 onwards. I am asking n behalf of my partner who scripted the blueprints, and I am not good with scripting. But running this through some AI ( I know...) tells me:

1. Clear compilation error (node will not compile)Node: K2Node_CallFunction_7 (the call to Ev_ShowUI)
   Position: around x=464, y=-288
   Problem: The node has ErrorType=1 explicitly written in the export (this is how UE marks broken nodes in .uasset/.umap text dumps).
   Why it fails: This custom event call node is trying to call Ev_ShowUI with input "Show=true", but Ev_ShowUI itself has an output pin named "Show" (user-defined output bool).Unreal does not allow a function/event to have an input pin and an output pin with the exact same name (here both called "Show"). This naming collision breaks compilation.Fix options:Rename the output pin on Ev_ShowUI to something like bShouldShow / IsVisible / ShowRequested
   Or remove the output pin if you don't actually need to return the value

[frosty heron]

need to download symbol to inspect further

[frosty heron]

ChatGPT?

[proper star]

Claude and Grok.

[frosty heron]

oh A.I yeah, I wouldn't listen to it for these stuff.

[proper star]

Yep, I've learned to disregard a lot of what it says and we are not vibe coding. I've bene asking around about this issue and haven't gotten many replies, so I thought I'd give it a quick shot. It has correctly said there is an error one output directly in the unreal output of the blueprint (you can even find it with ctrl F above) so I'd assume that is the issue at least. Only thing is I don't know what to do to fix it.

This seems to be the culprit, apparently:

[frosty heron]

I don't think so. Once again, disregard their hallucination.

Download debug symbol so you can get better log than UnknownFunction.

[proper star]

Do you mean the editor symbols for debugging in Unreal itself? The 51GB file? Or something else?

[frosty heron]

yeah, the one from the launcher.

[proper star]

51gb seems excessive lol. I guess I will be a while.

[frosty heron]

https://forums.unrealengine.com/t/error-opening-asset-on-5-6-bcustompropertylistforpostconstructioninitialized-custom-property-list-not-initialized/2660557/12

@proper star can you open your asset reference viewer?

check if there are circular dependencies.

damn looks like this happens on 5.6 onwards?

lots of victim by the look of it.

[proper star]

@frosty heron yes, we've found lots of threads of it affecting random people since 5.6, including that thread. We've tried various solutions, renaming the asset, duplicating it, recompiling it. My partner says there aren't any circular references, but I don't know if that's the case or not, with my limited understanding.

[proper star]

Looking into this now.

This one?

[frosty heron]

yeah but looks fine.

no circular dependency there.

I never encounter this error, seems a bit of a pain to dig for those who got affected.

epic staff didn't seems to come with concrete solution either.

[proper star]

Yep, and then there was one guy who uploaded a fix to git and it's not available anymore 😄

The SearchBreadthLimit in the reference viewer not an issue?

[frosty heron]

try to increase the dependencies depth and see if you got clearer result.

[proper star]

OK, well, with the symbols installed, this is now the error.

[frosty heron]

yeah error seems to derive from

Custom Property List Not Initialized

it's probably too much for most people on this channel to figure out.

maybe ask #cpp if you want to try your luck

[proper star]

lol, I expanded the breath to 200 otherwise I got the same error, I guess it's referenced a lot

Thank you, I will try that

[frosty heron]

yea still noo circular dependencies there as far I can see.

circular dependency happend when when the thing reference, also reference the outer back.

E.g Actor A -> Actor B -> Actor A

[narrow sentinel]

Anyone know why when I press the ' key, I get a view window bottom right showing a frozen image of players camera view

really annoying cause I can't get it to go away

[frosty heron]

@proper star cpp people suggest bp.NativePropertyInitFastPathDisabled

[proper star]

I am following it too, thanks for asking on my behalf. Where would I put that?

[frosty heron]

in editor, open the console and type that in.

you can open console by pressing `

[proper star]

Gotcha, thanks! And then try cooking again?

Gah, same issue again

[dense charm]

Ok here is a videoo, in case someone has an idea

[frosty heron]

Btw seems you have to set the value to 1. Have you tried that as well?

bp.NativePropertyInitFastPathDisabled 1

[proper star]

Yeah I did, I didn't the 1st time and thought I was being stupid (which apparently I was), then set it to 1 on the 2nd try and it still didn't work

[proper moon]

I haven't read the msgs later on but did you try updating the cook error verbosity in project settings?

Another thing I would try is fixing up redirectors and trying to validate the asset

and does it have C++ parent?

[proper star]

Yep, it gave me the same info as before. And we already tried fixing redirectors and validating.

I don't know about the C++ parent.

[proper moon]

check the top right of the Bp class, what does it show there

[proper moon]

Ah, u wouldve also tried regen files (intermediate, ddc, saved) right?

[proper moon]

howd you figure that out?

[proper star]

Hmmn, I don't think so. How do I do that?

[proper star]

Because this is the event throwing up the error 1 issue.

[proper moon]

delete .vs, binaries, intermediate, derived data cache, saved folder

then right click uproject file

and click generate visual studio files

[narrow kite]

Solution to transferring information (variables/data) to a spawned actor. (Detailed above)
-- This looks like an issue with how Unreal handles updating information. If you update the information on another blueprint with a correct reference (it WILL NOT update that information).

Even if you play that blueprint and associate back and forth with a parent/child, nothing will update. If you print string you will see the (wrong: non updated values)

There is an efficiency to not running an entire BP from a single variable change, but even running it does nothing.

Solution: If an event tick is running it will force the information to update. Or to prevent it running every frame if you call a function on that blueprint it will update.

Think about that though.......... If you run the function from the blue print it will not update. If you run it from another blueprint it will.

[proper moon]

hm I doubt it is that, but just to confirm, delete that function fully

(and just revert it later from version control)

and try packaging

if it gives the same error, well its somethin else then

you can try this before regen files, cuz regen files and opening project will take a while, and deleting saved folder means you gotta recook everythin

[proper star]

ok, I'll have to try this later, I need to jump out, but thanks for the help, I'll let you know how it goes

[gentle urchin]

Im not sure what this means tbh

Updating another actor through a reference ?

If its at runtime it 100% works, if its editor time there's other rules and bits at play

Like instance-editable variables

[narrow kite]

All of the original information is posted above. It was always correct, the logical flow of everything. In this case it's creating an actor BP for the purpose of a projectile OR an independent niagara effect. However, this also applies in many other ways such as a spawner creating enemy stats.

It does not work at run time. That was the entire issue. One might expect at run time it would update variables that where assigned from another BP, but that is not the case.

I used 2 forms. A hidden projectile object that plays a niag effect. Thus a sphere can move toward the players, but what they see is the niag effect of an electric ball for example. Or this a simple niag effect. In each case they create their own actor so overlaps can be detected and handled properly.

It's essential to pass information to use the projectile BP's like functions. Otherwise you would need a separate one for every projectile.

[gentle urchin]

If you swap from beginplay, and call a custom event instead after updating the variable it will work

Alternatively expose the variable as an 'expose on spawn'

[narrow kite]

Expose on spawn doesn't do anything in this case. It's not an actor set in the game like a spawner. Also calling a custom event from it's own BP does not update.

[gentle urchin]

Ofcourse it does. It exposes the projectile variable to the spawn projectile node

Which allows you to set the variable before beginplay is called

[narrow kite]

I already tested expose on spawn previously. It failed every single time. No impact on this case.

[gentle urchin]

Then you've done it incorrectly

I can promise you that if communication between blueprints didnt work, we'd all know about it .

You have an extremely generic usecase for it, nothing special at all

I update data from managers, owning classes and whatnot all the time 🙂

My tank has a projectile speed input to the spawn projectile node. It 100% works , expose on spawn

[narrow kite]

It's easily replicatable and I have found this issue before as well.

That is the master enemy blueprint creating the new actor. If you remove that end node and print string the variable it will be the default value.

That set function is working correctly and it's the correct reference. However, if you put a print test it will ONLY update if you call that function or event tick.

Every time I disable tick it gives only the default value. Every time I enable tick it gives the updated value.

100% of the time. The same with calling the function and printing the result from the projectile blueprint.

[gentle urchin]

So if you only have a print string after setting the value , you'll get the default value ?

Or are you talking about a print string running on beginplay?

Because those are not the same

[narrow kite]

The print string is on the projectile. Yes on event play

[gentle urchin]

Thats why its wrong

[narrow kite]

That's where the variable exists.

[gentle urchin]

Yes but beginplay is called before you set the variable

A spawn node in bp is like a side-task that it completes before moving back to what it was doing

[narrow kite]

I tested it on the construct also and same results

[gentle urchin]

Construct is even earlier

[narrow kite]

The BP doesn't exist until it's spawned

[gentle urchin]

You need something that is later

Thats why the custom event works

Because then you controll when the bp is executed

Alternatively, if you simply want to live in BeginPlay world, you must use ExposeOnSpawn, and feed the value directly into the spawn node

Right now game sees this

SomeEvent -> SpawnProjectile -> Projectile.Beginplay -> Print string -> return to whoever called spawn -> setProjectileinstanceVariable ->

[narrow kite]

That makes more sense

I'll clean it up, but the after call back to an event should fix it then?

It needs to update which niag effect to play for example

Also tick does work, but seems wasteful here. That's just a matter of it mashing execution and catching the update.

[gentle urchin]

Personally id have a exposeOnSpawn but you can always just do custom event (with the effect to play as an input for even cleaner communication)

[gentle urchin]

Exactly, it is indeed wasteful for this (you might want it for something else but thats a different topic)

[narrow kite]

Expose on spawn works for a set spawner in game. I use them a lot in a very customized spawner. In that case the variable is set from the actor because it literally exists as a visible spawner in game. This never exists in the game though before creation. Maybe I'm misunderstanding the expose, but how does it even apply here?

[gentle urchin]

It makes the va4iable show up on the Spawn Projectile node, as its own input

[narrow kite]

This enemy spawner used that. To set which enemy is spawned, special type, respawn time, level, etc.

[gentle urchin]

Thats instance editable

Which means you can set it per instance in the editor

[narrow kite]

I set instance editable and expose on spawn, but it does not update

[gentle urchin]

Show the spawn projectile node

You must connect the new variable/value

[narrow kite]

It's up above nothing changed

I'll delete and retry that

[gentle urchin]

Show it

Might neee to right click and refresh it

[narrow kite]

Still doesn't work

[gentle urchin]

Shooow

Dont tell

😆

[narrow kite]

I was I was.......!!!

I found it

[gentle urchin]

You didnt show the spawn node 🙁

The issue ?

[narrow kite]

I was relying on the set variable node manually. I didn't see it inside the spawn actor node

Because it wasn't there previously so i wasn't looking for that.

I spent quite a few hours tearing that apart, recreating the bp's, testing with a parent/child and other versions. It finally makes sense, thank you.

[gentle urchin]

No worries

Its an easy thing to get wrong when you're starting out

[narrow kite]

I'm not sure I can do that with the spawner. It's working fine anyway, but I was going to update it. However, it's a child/parent relationship and the stats are updated to the master BP.

The enemy actor class will be different and is set manually on the spawner in game

Exposing it doesn't do anything unless may I set it on every single enemy BP?

Actually, I can't even do that. They don't exist there.

The instance can pull data from the master as it's own, but the variables all exist in the master.

The BP reveals what is set on that instance. This is the actual class it's pulling.

It's fine though everything is working on the spawner. It uses that to reference which enemy to create, then casts to it's master BP. Which updates all the enemy stats. (Essentially a complex proceedural generated enemy stats.

[gentle urchin]

The rules are exavtly the same, but you must have and expose the variables in the master to get them exposed

If they dont exist in the masterz then there's a problem ofc

[narrow kite]

I'm not sure that works I tested it.

The spawn actor in that case if using the night stalker class.

Not the master

That's on the master (parent)

This is why

It's not referencing the parent class. It's creating an actor based on the specific child enemy BP

It's spawning the child (set manually by the spawner so you toggle any enemy). Then it casts to the master class while that instance is still in reference and updates the info.

[maiden wadi]

Enemy1Actor here needs to be the parent class type

[narrow kite]

The master enemy is the parent class because it essentially holds all universal data and is shared for all child enemy BP's. The children hold specific and unique information such as attack pattern/options.

[maiden wadi]

Okay. But to get the parent's variables as expose on spawn Enemy1Actor here needs to be the parent class type.

Note. I'm not telling you to set the parent's class in the property. I'm telling you to change the class type of the property.

[narrow kite]

That's the child (individual enemy) not sure what you mean

[maiden wadi]

Click on Enemy1Actor. The purple variable property and show it's details panel.

[narrow kite]

You mean this

[maiden wadi]

See the Variable Type here? Change that to your Parent's class.

Instead of Actor

Then you should see the parent class's ExposeOnSpawn properties on the SpawnActor node. It might need the node refreshed.

[narrow kite]

Is that right?

[narrow kite]

I had to update the other actor class to it also. (You can choose multiple enemies in the spawner). I'll go through and update all the variables and clean up the spawner. It also doesn't seem to be spawning the other enemies, but that may not be related I'll need to look into it.

Thanks everyone for the assistance. That helped a lot in improving the code and a better understanding of the tools/concepts.

[cursive cosmos]

Hey all!

I want to make a collectible system for my game, but with different unique collectibles not just coins etc. They will be placed throughout my level and the player will be able to pick them up to collect them then be able to view them in the collectible screen with a 3D view of the mesh and some info about it.

I can't seem to find a single tutorial for this, especially the unique collectible part. I know I would have to use data tables etc but personally I need a video to help me do this and then connecting it to the widget to show them and the 3D mesh of it!

Any help would be great!

Thanks :)

[dark drum]

It sounds like you need a basic inventory system with a 3D model view.

[cursive cosmos]

awesome! ill look into it !!

tyty

[warped juniper]

I have worked on stuff like this in the past... What specifically did you wanna know first? Something on the widget area or storing the data?

[cursive cosmos]

mainly storing the data! i know i would have to use data table/s to store each unique collectible but how would i link that to the BP/widget!

if you could possibly do a very simple step by step thatd be incredible <3

[warped juniper]

Well depends, you mean the data of the items as assets?

Or the data of the items as you play and pick em up

[nova kelp]

@frosty heron @maiden wadi I was able to make it work using your examples and tutorial recommendation. Thank you so much 🙂 Event dispatchers for the win.

[maiden wadi]

🥳

[cursive cosmos]

yes this one!

[last peak]

WHat do you mean by that link it ?

You create a data table, you fill in your informations and in a blueprint you add a data table variable and set its default value to the table you just created
Now you can pull it in your graph and search for a row name to access the data

[warped juniper]

Sorry, back
First, tell me the sort of items you are trying to build

Coins, collectibles, resources, etc. As many details

[ruby cobalt]

y is this broken? I tried with gate.. same bug

[warped juniper]

Can you show what calls the branch first?

I see that, on false it runs Do Once, and on true it resets it...

But I need a bit more context

[cursive cosmos]

unique collectibles. the other stuff i can do. just the collectibles im having trouble on. each collectible is just like a viewable trophy

[frozen perch]

What's the proper way to reuse chunks of a map for procgen? Like spawning structures. Leve instance? Packed level actors?

[ruby cobalt]

it's within a custom function. it's called by another actor.. basically runs when i click an object in the level to grab it.

when i grab an object, i want to store currently valid physicscontrol parent for the camera..
then temporary switch the physics parent to be whatever object i clicked

on release, restore previous state.. this is why i want a do once.. i don't want to restore previous state at the wrong time, like before i click a thing.. mostly likely won't happen but you know..

what i don't understand is that we can clearly see the reset that should open the gate.. and yet the other message doesn,t go through!

[dark drum]

I assume this logic is placed inside a function. That means the state of the Do Once node is reset when the function is called again. If you need to state to persist across function calls, you'll need to either move it to the main event graph or store the state in a variable (such as a bool) and update accordingly.

[ruby cobalt]

ah yes that's it. thanks. so some of those stuff aren,t meant to be in functions

so i could use a bool and a branch instead maybe

[dark drum]

They can be in functions. You just have to remember the state of the node resets once the function has finished executing.

[ruby cobalt]

ah good point.. the whole logic could be used within the function itself while it runs once

[narrow kite]

The earth attack here is a niagara effect. I added a collion box because I need some way to detect when it hits the player. In this case though there is no other mesh or hidden object to be used as the projectile. It's just the niag effect since it already shoots forward. However the highlighted part in red is the collision box. It won't follow the niag effect.

The box is nested here.

[narrow sentinel]

Anyone know when it comes to GAS ability system how I would set mutliple set by caller on a specific gameplay effect. Currently it looks like I have to apply it first then update. Seems I can only do one value when doing make outgoing spec

[maiden wadi]

Not fully following this? You just chain the calls to the spec.

[narrow sentinel]

so there you can only set one set by caller on the gameplay affect before applying the gameplay affect

[maiden wadi]

Right. But look at the return value

You can add another SetByCaller node after that and chain them. And use the last node's Handle.

[narrow sentinel]

so there for example

[narrow sentinel]

ohh I didn't know that, I'll remeber that for future thank you

so i have another issue where here I remove some health on this gameplay effect but for some reason after the effect has ended the health seems to return to it's base value rather then remaining at the new level

[narrow kite]

If anyone has info regrading adding a hit collision to niagara effects please let me know. It looks like the collision is enabled on the effect, but I'm not certain how to interact with it.

[narrow sentinel]

so apparently my issue is the Duration and Instant only handles current value and not the base so if I wanted base to change I'd need to use instant instead which is fine I suppose just means I can't grant any tags

so question is how would I apply the affect for a duration but have the applied damage amount to affect base value rather then only affect value whilst effect is applied

[narrow kite]

Partially Resolved: I'm using a move node to match up the collision box with the niag effect. However, it doesn't always go in the right direction.

Any of that information can be updated as needed. There should be a lot of options. The spawn location is passed when it's created. It's basically just where the actor is spawned.

[crimson briar]

Uh, I don't know how you have it set up now, didn't follow. But it should be relatively simple.

1. Make the niagara system to spawn spikes in place as long as it is active, but make it movable with parent
2. Attach the niagara and the collision to an actor
3. Move the actor only

[narrow kite]

I have 2 projectile BP's. One of them essentially does that. It spawns a hidden sphere and simply plays a niagara effect on the sphere. So essentially the sphere is what you collide with.

In this case the niag animation already moves. I'm not sure it's designed to just play that animation in place?

[fervent jolt]

rotation from X vector is expecting the point local to the actor that you want it to go ( target position in world space, minus actor world location). however If you had the actors rotation that spawns the thing, you should be able to use that with get forward vector to get the right direction

[narrow kite]

I'll try to test that out. I can pass the rotation variable with expose on spawn.

[fervent jolt]

might work, if that ends up rotating the attack and making it look funny, you could also set it as a variable. "AttackRotation" might take a bit of trial and error.

[narrow kite]

Working on it. I have other code to reference. Such as a back dash that will dash backwards from the actor. It probably needs a lot of tweaking. I'm not sure the niag will actually cast straight forward every time. It's like the enemy needs to be able to move a little face toward the player and cast.

It's close and seems like it will match pretty well. At least enough to be very fair to detect whether the player should be hit. It generally starts out correct, but somewhere the collision box ends up going the opposite direction after a while.

[fervent jolt]

odd..

[narrow kite]

I can't really just use the actor location for this.

Because it's unfair if you're moving around it's not supposed to track like that

Actor being the player character

[fervent jolt]

it shouldn't really track the player as long as you set the direction only once upon spawning

[narrow kite]

Example: This works for enemies back dashing

I'll be working on it and testing. I think there is a secondary issue in ensuring the enemy is facing the player when casting. It generally happens, but if your already within radius that might be causing issues. It used the move to AI (player) then casts at the set distance. If it's already in range it might not rotate because it never has to move.

Thanks everyone for the assistance.

[maiden wadi]

Make the effect apply a secondary effect.

Your durationed effect can apply an instant effect.

[narrow sentinel]

Also out of interest how would i set the period on duration policy from outside of the GE ?

[narrow kite]

Fix Step 1 (Ensure enemy rotation is facing the player upon using skill)

Now the enemy is always properly rotated and the niag effect is always directed at the player. However, the collision box still needs work.

[maiden wadi]

Duration can be set by caller. Has a whole setting for it same as attributes do.

Period is a little trickier. You need C++ for that. It's set on the FGameplayEffectSpec directly.

Is this for like applying a Haste or similar effect for a GE?

[narrow sentinel]

It was an idea for damage effect where i set the durarion from the asset rather then hard set it to a min and max

Ive found though has duration only effects base value

And not current value so ive done another method

Used infinite with a period set so the current value is altered

[maiden wadi]

Yeah. I'd dig around in C++ for that. Maybe a library function that can set them on a spec.

[narrow kite]

Prepare yourself...........for great adventure............and stupidly easy solutions that appear to be working perfectly.

[granite nacelle]

Hello everyone, I’m having issues with localization saving and loading, so here’s the thing I’m using Unreal 5.3 I have a language widget with 8 different languages my question now is how can I save and load the last selected language that I choose before closing the game, I have a save game and game instance blueprint my problem is not knowing how to set everything up with what i already have, and tutorials aint helping

[gentle quartz]

How can I make breakable glass?

[narrow kite]

I think the issue in most examples referring to character movement is they multiply the forward vector. Including the x,y,z. For this case it's just set a rotation and move (x , amount)

It works with using the spawned rotation also. From the example above. Which sets the actor (enemy rotation) at the player

Simplified: There is no forward vector or actor location. You simply move (x amount) in (direction/rotation)

[ruby cobalt]

TIL that maps get erased during play?
I got a variable that is valid at begin play and gets erased after like 1 sec?

[narrow kite]

All variables should maintain unless a new map/level is loaded. You might need to explain more.

[warped juniper]

Okay, so you want unique collectibles to be like viewable trophies.
If the model is the only thing that differs these collectibles, a simple way would be to have a data table holding a list of all these trophies as ID, Name and Mesh

Each collectible would have an ID and, on pick up, it adds that ID to the player's list of unlocked trophies.
You do have to be mindful of not spawning the same ID twice, though, which should be overal simple to do so long you keep track of it.

[ruby cobalt]

this is so weird.. this exact code (pretty sure nothing changed, just new project and imported the same components) used to work perfectly..

i find all midi devices and since i want to call them by name, i stop them in a map instead of an array.

in many actors, after init, i get that map out of my game mode.. transfer it to have a local reference.. works for 1 second.. then it's gone

but i beleive if i do the same with array instead of map.. no issue

[cursive cosmos]

okay interesting. i'll have a play around with it tmrw!

this has been very helpful!

[ruby cobalt]

wow the weirdest part is that if the same data is in both array and map.. then the map works..

basically here.. i never ever read from that array.. i just read from the map.. but if i remove the array from there.. the map breaks

[narrow kite]

There is another method that is often much more efficient especially in MMORPG's. Depending on how the trophy is distributed. You can simply build an array/map that inserts the data as they are acquired. If you look at a larger SQL database structure for example that means each player ONLY maintains the essential data instead of the entire list.

You may be referring to that though in "adds to players unlock list".

[ruby cobalt]

my other project with the same map.. same code.. works just fine.

[narrow kite]

I did that with nodes in an old game long ago. It simply added a X,Y coordinate and Y/N for if it was obtained. Then a simple database update would reset the entire player base by just removing them all. So a node could be obtained on timed intervals.

[lost wolf]

every time i see manhattan lines i feel so happy

[warped juniper]

Well I'd like to hear more on this method

[narrow kite]

As an example I have special mobs in the game. (Lords, essentially like a boss). In this specific case there is no master database or table. It's simply not needed. Each enemy spawner has unique information and can create a Lord. When the lord is defeated an index is then added to the defeated array. So it's creating the array as you defeat them and that array can be referenced on whether to spawn them or not.

Each Lord has a unique name to use for that reference. This would be for example instead of creating a database that contains every single Lord in the game.

The real value is for multiplayer games. Each player could have an entire list of Every Lord. Then it would check whether they defeated it or not. However, when that is multiplied by 100's or 1,000's of players it's storing tons of useless info.

A new player for example that quits would have a database record of every single lord. It's far beyond that though. It could be 20 different tables/records like this for all kinds of things in the game.

There really isn't much difference between the Array (technically a map) in Unreal and a SQL database. It's the same data structure. A SQL database is commonly used in MMORPG's to store the information. It's incredibly fast at looking up records and sorting information.

In PHP it would be a SQL statement to insert a record. In Unreal for a single player game it's simply adding an index to an array.

Note: That would apply to an achievement list for the players also. The only information needed in the stored database would be achievements they actually acquired, not all achievements. Otherwise you would have 10,000 copies of all achievements. It could still reference a single server side database if needed. This is more of an issue with how information is stored on a per player basis.

Does that make sense?

Note: The X,Y coordinate would be something for DIablo 4 statues. They are scattered all over the game. When you obtain one a simple update to the player table/database/record would simply add that statues Map + X,Y coordinate. So you can only obtain it once and each player only has a record of statues they obtained. Regardless of whether the game contains a master database/list/table of all statues.

[maiden wadi]

Why an X,Y coordinate though?

[narrow kite]

It's just a unique identifier. In this case it was a grid based tile map. So it was easy to do.

[maiden wadi]

Why not just some sort of FName related to it? Coordinates seem dangerous. Looking at a lot of issues with procedural maps, or even a designer just moving it.

[narrow kite]

In the case of Lords I just use a string for their name. Easy to identify and reference. The point was really more about how to store player data especially in a multiplayer environment.

Really it's a MAP array, name, boolean (defeated) etc.

[dark drum]

I don't think I'd use the coords for storing collected collectables either. The moment you decide to move one it'll mess the saved data for that specific collectable.

Using an actual GUID of sorts would be safer.

[cosmic hill]

i was using this from a break hit result on the physical material output to calculate damage to different body parts, on ue4, when i upgraded the project, it says its deprecated, are there any other nodes that can replace this one? i tried with a swicht and a select, but no luck so far

[narrow kite]

That really wasn't the point. That was all PHP/Javascript and not in Unreal. It made sense in a grid based game for identifying each location.

The point is you keep almost no records for a player in a MMORPG and only build the records as needed. Because of the multiplying factor of your player base.

[narrow kite]

AI says
In Unreal Engine, you can detect specific body part hits by
using Line Traces (raycasting) or OnComponentHit events against a character's skeletal mesh, which returns the specific bone or physics body part hit. The most accurate method involves using the character’s Physics Asset (PHAT) to identify bones, or using Physical Materials on specific bones for varied damage responses

I don't use specific parts, but it looks like the bone is already in the hit result

[ruby cobalt]

it would be so hard to go back hahaha

[crude dew]

Probably a stupid question but here goes, Is there a way to check a MAP for duplication... IE if i have a MAP of a Vector and Bool if the Vector is failed to add to the MAP due to the existence of this exact vector is there a way to generate another vector to add to the MAP instead? I cant see a "Success" check for MAP addition.At the moment im finding that if a duplicate is attempted to be added to the MAP it automatically doesnt add it and skips to the next one in the Vector Array.

[gentle urchin]

Map as in tmap?

Map.add replaces any existing value at given key

[gentle urchin]

Vector being floats, id be careful with that as a key

[crude dew]

Whats happening though say I have 30 vectors and I want to choose random vectors to spawn actorsd at.

[gentle urchin]

The vector wouldnt normally be the key

[crude dew]

But i dont want the vector location to have more than one actor spawned at it, So how would I go about doing this?

[gentle urchin]

If your map represents a location to spawn, then the key would be some identifier that makes more sense for you

[crude dew]

It seems so easy so i know im being dumb i think lol

[gentle urchin]

If its a pick random, then array is easy to shuffle

Wether or not a location already got some Actor to it, youd either maintain with two arrays (freeLocations/takenLocations), a struct, two maps or really any two container setup

[crude dew]

But then I want to store the Item and its location in this map, So maybe using the Actor and Vector would be better but then I could have Potion1 and Potion2 spawn at 0,0,0 because the keys dont match but the vectors do right?

Ahh so use a standard array for Free/Taken?

[gentle urchin]

Many roads lead to rome

It kinda depends on what you need from it

But keep in mind vectors being floats, so you can end up in weird situations if you do some comparators for any reason (hence almost equal exist)

But keeping two arrays sounds reasonable to me 😆 could shuffle them once, then its just maintaining the elements in one of the arrays

[marble tusk]

Could also use a struct. Have the struct contain the location vector and spawned actor reference. Only problem is having to loop over the entire array of structs since there's no way to "find" in a struct array. Honestly, it would be neat if epic could add a find node for struct arrays.

Oh, I'm kind of just repeating what was already said

[ruby cobalt]

been using unreal for a lil while now.. so i got used to it... but.. why are the event nodes inlet and outlet backward lol!

[dark drum]

If you still want to use a map to store the actors and it's assigned location, I'd use an int 3d (or int point if you only need the x/y) for the key. It's not very often you need to worry about the decimal portion.

[dark drum]

It's not backwards. The red dot is a delegate. The red on the event node is it's delegate as an output and on the function it's an input.

[narrow kite]

How can players complain their spawn location was unfair if they can't point to a fractional pixel position?

[lost wolf]

how are they used

[dark drum]

Delegates?

[lost wolf]

in this case for the red square on the custom event box its just for getting a reference to the event for binding something to it ?

or more specifically the delegate that the event invokes

[dark drum]

Yea. Alternatively you can use the 'create event' node and select it from the list. (Assuming it has a matching signature)

[narrow sentinel]

is this correct as currently I am applying the ability when sprint is toggled on and then removing the ability when player doesn't want to sprint anymore

currently my issue is that when I apply the GE affect which adds on movement speed I'm don't see to be getting that through on normal attribute set to feed into player charactors speed

their the properties of the sprint GE

[warped juniper]

That sounds logistically like an entirely different use case for a trophy / collectible system though...

[narrow sentinel]

Anyone around to help with my issue at all ??

[narrow kite]

It's in relation to how the data is stored for the player. It doesn't matter what table/data/structure it is.

The simple form is you have an empty array and fill it as things occur. Acquiring an achievement, unlocking a waypoint, etc.

[dark drum]

<@&213101288538374145>

[narrow sentinel]

so I think I've found my issue which is I'm not affecting base value so the post effect function won't be getting called

[warped juniper]

So I'm doing some Geometry Scripting tests here.
So far so good, but I wonder if there's a way to make the verteces collapse all into the middle for debugging reasons?
Process is just a formula to lay verts along a curve and extrude.

[true valve]

Hi - Anyway to enable Edit Layers to landscape created in previous UE version?

[modern cove]

If I tell a Construction script to execute 2 Custom Events that each have time Delays or timelines, will both carry out at the (nearly) same time?

[regal cosmos]

I have a question about the spline, I want to get the spline point location with specific location data, for example giving it the x and y value and the spline will show the debug sphere at the spline point with Z value as well.
Because I'm trying to make the closest distance spline point from character but ignore the spline Z value, like projecting the spline to flat then start to get the closest spline point.
The single get closest spline point node surely won't work though
(The screenshot showed the closest spline point when I'm trying to move left and right and the spline point will be a yellow sphere. And as I move left and right the middle spline won't be detected as the closest point if ignored Z value)

[crude dew]

Thank you 😉

[faint pasture]

what does that spline represent?

[crude dew]

I tried a slightly different approach than the arrays which i thought would work but it doesnt seem to can someone explain please? This is spawning items at the available locations (IE.Not locations inside walls etc but actually only walkable areas) Now I thought if i have 31 available locations and spawn 31 items it should in theory run out of spaces to select as a random location and spawn 1 item in every possible location but it doesnt seem to work that way. As you can see from the marked vectors its almost like its randomly selecting the same marker locations for some reason when it shouldnt be possibly as Remove Index should have removed that as a possible from the array of locations? The spawning happesn inside a For Loop it just tells it the num of times to loop and thats it. To double check this I stored the actual locations chosen from the random index selector.

Well if it selects random #18 from the list then there should only be 30 available spots not 31 right?@ because remove index should have removed 18 (IE.Resized the array).

Ok think i found the issue seems the random selector starts off ok but then just decides im not picking random numbers anymore for some reason lol

[regal cosmos]

That was going to be aligned with the roof, because I want to make a rappel system. But I only want the rappel grapple point to be manually set instead of using line trace to automatically detect since the building's wall isn't flat so it might get the wrong data. I also noticed a game R6 looks like manually set that thing so I'm trying to replicate that method.
So if I aligned the spline to the roof then the grapple point should look good
(Though I'm not sure if they're using line trace and set a unique channel for it to detect the roof)

[faint pasture]

So does the spline represent the roof edge?

[regal cosmos]

Yes, I will use an actor with spline to align the roof for the grapple point to get its ideal location

[dark drum]

The issue is down to you're logic. You're using an index which can repeat itself. When you remove from the array, you just shrink the top end for the random integer. Whilst unlikely, you could end up getting all 0's for each pull which would get the same location each time.

Personally, I would make a copy of available spawning locations and then shuffle the array. When you go to get a location, get the last index from the shuffled array and remove it when complete.

[glad grove]

hey everyone. i have a question for physics constraints.
so i created three seperate BPs. One is the fixed anchor, one for the ball, and one that is the physics constraint. and in BeginPlay i set the constrained component to the anchor and the ball, but for whatever reason the ball keeps going way below ground. it looks like the joint is detached and set to near the origin point for some reason? can anyone let me know how to fix this?

[digital lantern]

Hey could someone please tell me why "ModoCharacter" isn't being detected? I really don't understand; PlayerCharacter is detected and has the exact same configuration.

(On the left are the Character collisions, and on the right is the Collision box.)
Ping me pls

[narrow kite]

That's only a portion. Where are your overlap nodes? Or hit detection method

[digital lantern]

I'm using OnComponentEndOverlap with a print string, but nothing is coming out

[narrow kite]

It's functional, but more importantly it's pretty!!!!!

[narrow kite]

That image shows no tick under the collisions overlap.

Modo character (Overlap box : Empty that means false)

[lofty rapids]

so are you trying to collide the left with the right ? or what are you trying to do wdym "not detected"

[lofty rapids]

block and overlap are two seperate things btw

[digital lantern]

I'm trying to get ModoCharacter to be detected, but nothing happens with this box. I have a collision sphere that works perfectly and has EXACTLY the same parameters as my collision box

[lofty rapids]

ya its probably not exact most likely

[lofty rapids]

you have block on the left and overlap on teh right

i'm fairly confident they do not opereate on the same things

[faint pasture]

overlap x block = overlap

[digital lantern]

In print I only get "Sphere", "Box" never appears

[lofty rapids]

length - 1

indexes are zero based

[faint pasture]

Where is sphere begin overlap?

[digital lantern]

1 = box
2 = sphere

I see the AI ​​passing through it but no printout

[lofty rapids]

i see your pulling from a different node on seperate execution

this can be a problem

[lofty rapids]

how long you been using bp ?

[digital lantern]

A few years ?

[lofty rapids]

you have the execution from two different events going to a branch that is fine, but the branch rely on one of the events data outputs

this is a problem

[digital lantern]

But isn't that the problem? The printout must appear regardless of the case

[lofty rapids]

oh i see what you mean

it should say box, it doesn't say that ?

[digital lantern]

Yeah

[lofty rapids]

i would set modocharacter to overlap

[digital lantern]

Don't look at the rest of the code, I clean it up when everything's working, but right now it's a mess

[lofty rapids]

not block

[lofty rapids]

lol i hear that i make a mess all the time

i was just pointing out an obvi issue

[digital lantern]

I've already tried it, what I don't understand is that I have no problem with the sphere, but the box is having trouble

[lofty rapids]

so are you saying doormaster overlap event isn't firing ?

[digital lantern]

yeah

for the box only