blueprint

[earnest tangle]

Or is that from someone else's project?

I don't think that node is a builtin so it's coming from somewhere else, possibly a plugin or a custom function

[kindred marsh]

Hello guys i really need your help. I am working on a VR project i have the oculus rift hmd and i didn't manage to see my vr controllers. I saw a lot of tutorials and i follow the steps but nothing. I believe that it was the steam VR i close it but same problem. Could anyone help?

[vagrant flicker]

Hello. Can somebody tell me how to limit the animation sequence to play only from the first to the last frame?

In my case, I have two issues:

First, If I press the backwards button "T" and the animation is on 0 frame -> The animation will play from the backwards. I do not want to. I want the sequence to be played backwards only if its on certain frame and not go bellow 0.

The second problem is that when I play the level sequence backwards, when it goes to the first frame (0) the animation is going at the minus graph.. -1000 and etc while I am holding the button.

I fix that for the forward part by using "EventOnFinished" and now when the animation goes to the last frame, it stops and even If i press again the button nothing happens, its stays in the last frame, but for some reason its only working for the forward part.

https://blueprintue.com/blueprint/fkz8khfn/

[jovial prairie]

how to fix font from AAAAAAAAAAA back to normal

[maiden wadi]

@jovial prairie That looks like RichText?

If it is you'll need to create a RichTextFormat file.

[jovial prairie]

got it

[sonic crescent]

Hi! Any good tutorial/notes to animate a spaceship banking when the ship is turning? I want it to bank/roll quick a start, and go back to position when releasing…

[faint pasture]

Get yaw rate, map that to your desired bank angle, profit.

[spice smelt]

Hi, I'm relatively new to unreal, and I'm working on a film/television project.

I need to make an actor spawn where I click, which means just taking the trasform of a raycast hit from screen space to world space.
However while doing so for play mode was pretty straightforward, I found nothing about doing so from edit mode instead of play mode...

[tidal marlin]

its not my project so i cant do it. But dude where i give it really sure that its not plugin.....]

[earnest tangle]

You'll have to ask the person whose project it is to try and hover over it to see where it comes from

It should say "Target: Something" where Something is where it's defined

[icy dragon]

Why would you need to do that on edit mode anyway?

[spice smelt]

We need it to spawn mannequins while virtual production camera (ue's beta feature) is running and while third parties may modify the scene

[icy dragon]

I don't know how VR Editor works or any difference with the VP camera thingie, but can't you spawn the content browser menu while it's running?

[sonic crescent]

Thank for your answer. I understand that i need use the yaw. The thing i'm not aware with, is the way to animate it (fast yaw, fix yaw, then releasing yaw).. Do i use a Timeline for that?

[spice smelt]

yes, but you should assume the person holding the virtual camera knows nothing about unreal or computers in general, he just wants to touch a table and make a mannequin appear on top of it

[white scroll]

Any way to show all blueprint compile warnings while in the editor?

We are getting following warnings a lot when building the game through cmd but can't figure out what blueprints are causing these
LogInit: Display: LogEnum: Warning: In asset 'None', there is an enum property of type 'EPlayerTeam' with an invalid value of 'EPlayerTeam::Attacker'

[quartz glade]

Are blueprints garunteed to complete all processing before firing another event on the next frame?

Consider the BP above. If I click the mouse button briefly, and trigger some long and complicated function, am I garunteed in this scenario that no matter how long that function takes, it will be completed before UE processes the mouse released event?

[earnest tangle]

Yes

The only exception to this is if you use latent nodes, such as a delay

obviously whatever logic is in the delay will run later whenever the delay (or whatever the latent action is) finishes

[quartz glade]

yep, that makes sense. But otherwise its all single threaded?

[spice smelt]

imagine if it was a blocking sleep 😆

[earnest tangle]

That'd be fun

@quartz glade and yeah, the game logic runs in UE's gamethread which is just one thread

[quartz glade]

cool - thanks. makes it easier to reason with some of the processes

[spice smelt]

from a generic game engine perspective, even if objects methods were run multithreaded, all the events should be guaranteed to have completed before the next step/update/whatever you call it

[quartz glade]

yeah - so a mouse pressed, then a mouse released, they should technically always be on two seperate ticks right?

[spice smelt]

there can be funky lower level exceptions, like if you click the mouse outside of your game, drag it on the game window, and then release it inside

in that case you never know it was pressed

[quartz glade]

oh right - i can see how that occurs - ok

[spice smelt]

but those are edge cases that won't happen 99.999% of the times, and just can't happen if your application is fullscreen

[quartz glade]

a related question to confirm I'm not going crazy - there is no such thing as a "mouse held down" event/status. The only way to detect that scenario is get "pressed", set a bool, deal with it until "released"?

I checked the new UE5 event input stuff, didnt see it there either..

[spice smelt]

that said bear in mind that all i'm saying comes from generic development, I've no experience with if and how ue handles these edge cases internally

[earnest tangle]

There's probably no event for "held down"... There might be a way to query the current button status for example in a Tick handler

But not sure if that's available in BP's

[unique wasp]

I'm confused about where I'm supposed to put my camera. I thought I could put that in my Pawn class, but if I do that, then it doesn't seem to get used. If I put a camera directly in the level and set it to Auto Activate For Player 0, then I get the behaviour I want, but then the PlayerController doesn't 'have' it because it's in the level instead of in the Pawn. I'm confused, how is this supposed to work?

(I have a GameMode, PlayerController and Pawn Blueprint class, and have set the Editor Preferences and GameMode to use those.)

(I'm making a building game, by the way, so there's no player avatar in the world: just a cursor to click stuff)

[earnest tangle]

If you put it in a pawn, and then set that as the default player pawn, it definitely should be the one used

[tranquil rain]

Can anyone help me with this? How do I stop list items showing others variables?

[obtuse herald]

https://youtu.be/JyMEAx8-nbY

[unique wasp]

That's exactly what I did. Or well, I think that's what I did. Apparently I'm missing some step along the way?

[tranquil rain]

https://answers.unrealengine.com/questions/1023716/view.html

This is the issue I'm having but I'm unclear on how to set the last node to visualise the widget

[unique wasp]

Ah, I figured it out: I had set my GameMode but had then accidentally quit without saving. After restarting I continued working and didn't realise my GameMode wasn't used, and thus the Pawn with my camera also wasn't used.

[trim matrix]

why cant I collapse to function ???

[obtuse herald]

also check the log

[obtuse herald]

That's a custom function

Your problem is that you're not refreshing (or at least not correctly) your Entry widgets with the new Item data they've received.

[tranquil rain]

I might I do that. My items are being set on construct

[vagrant flicker]

Hey folks! I still need some advice, can anyone take a look when its possible? ❤️

#blueprint message

[obtuse herald]

Did you already added the UserObjectListEntry interface? If not do that first.

[tranquil rain]

That is done

[obtuse herald]

Ok, now on you left side you should have Interface functions

[tranquil rain]

Yeah

[obtuse herald]

Implement the OnListItemObjectSet function

This will give you an event with an fancy icon

[tranquil rain]

That's how I do it

[obtuse herald]

And you're refreshing your data based on the ListItemObject you're receiving through this event?

[tranquil rain]

I set all the item entries with it

[obtuse herald]

show me

[tranquil rain]

@obtuse herald

[obtuse herald]

that looks good

[obtuse herald]

now, what do you do when clicking on the widget?

[tranquil rain]

Select data to be applied to spawned actors in the next level. It all works fine except the check boxes showing as checked when not.

[minor galleon]

anyone know why sequence graph editor wont F*&(king stop popping up?

[tranquil rain]

Only the data from the ones you actually click is taken

[obtuse herald]

Ok, change the state of the check box at OnItemSelectionChanged

to the IsSelected state

[tranquil rain]

I'm not selected the item tho

Just clicking checkbox within the item

[obtuse herald]

Ah, well you need some way of telling your entry widget if the item is selected

I'm assuming you always want max. 1 item selected

So you need to store somewhere which item is selected

[tranquil rain]

I want 4

[obtuse herald]

ok

then you need to store which 4 items are selected

and based on that, change the checkbox state when receiving new data inside the entry widget

[tranquil rain]

I'm storing the index number

[obtuse herald]

So the your Item object knows the self index and can access the index of every Item selected?

[tranquil rain]

It could

[obtuse herald]

Ok then, check if the index of the received object is one of the indexes currently selected (at OnListItemObjectSet)

If so, tick the checkbox, else untick the checkbox

[tranquil rain]

I'll give it a try. Thanks

[obtuse herald]

Because currently your EntryWidget does receive it's new data, but doesn't do anything with the checkbox, so it just stays ticked

[tranquil rain]

Will let you know the results 😀

[gray hare]

If I add a component to an actor in C++, the inherited component shows up in blueprint, but the details panel is empty. Is there a way to make it not empty?

[odd ember]

make properties UPROPERTY(VisibleDefaults) or BlueprintReadOnly or BlueprintReadWrite

[maiden wadi]

Also don't hotreload.

[odd ember]

dunno why this is in the blueprint channel though

[gray hare]

I wasn't sure if this was a C++ or BP issue. Conversation is continuing in #cpp. Thanks for the help.

[odd ember]

I meant the discussion

or the question rather

poe's law in action

[gray hare]

I tried hot reloading way back in 4.13, but it was horrible and bad and it scarred me. So no more.

[maiden wadi]

TLDR, just enable LiveCoding, and if you change a class constructor, or a .h file, close the editor and F5

[gray hare]

Most of what I do involves touching .h files.

[icy dragon]

War never changes, and so does Hot Reload.
Safe to say they gave up and started integrating Live++ into the engine.

[gray hare]

I've had good luck using Hot Reloading when iterating on unit tests.

[maiden wadi]

You'll have good luck until one of these days, you hotreload, and then spend two weeks rehooking up half of your blueprints when they just randomly decide to corrupt. 😄

[gray hare]

yeah...

[maiden wadi]

I used to think I could just be careful around it. Then I had it happen to me. Screw doing that again.

[pure relic]

Hello! I have one question. I'm looking to make an object of my choice ripple once (As in the geo ripples) and it can be triggered by an input of my choice. Anyone know how I can do it? I've only been able to find raindrop tutorials x.x'

[odd ember]

you might have to reword that

I have no idea what you mean

[pure relic]

sure. So I am looking to find a way to have some geometry (lets say a disc) ripple from the center when triggered by pressing a key

[odd ember]

what does that even mean

what is a ripple

[pure relic]

Sorry if Im not clear

https://g.foolcdn.com/editorial/images/480441/ripple.jpg

^ like this. It needs to show depth, not just a material

unless 3d depth can be shown via a material

[odd ember]

I don't think this is the right channel for that type of ask. I can't see anything in blueprint that would help you with that. try #graphics

[tawdry surge]

anyone have any idea why my left mouse button input is not firing from my game mode BP
However my on click event in my player's ui widget still works fine

[icy dragon]

Okay, first, I don't think Game Modes are supposed to handle inputs.

[tawdry surge]

no i lie

[obtuse herald]

I don't think game modes can even receive input events in the first place

[tawdry surge]

the button reacts the event wont fire

[obtuse herald]

game mode really isn't the place for whatever you are trying to achive

[tawdry surge]

ok thats what i was wondering

[icy dragon]

Game Mode is practically server side in MP situations.

[tawdry surge]

this is just a single player stand alone

[obtuse herald]

Usually you define stuff like winning conditions in there

[tawdry surge]

shouldnt matter

[icy dragon]

It doesn't care if your game is single player or not.

Just don't do input events in Game Mode.

[tawdry surge]

playing in single is playing as the server so it doesnt matter in this instance
the input thing does matter

well apparently you cant

[obtuse herald]

PlayerController / PlayerPawn is probably the thing you want to put this in

[north marten]

Is there a way to have a static mesh use a sequencer for a spawning in and out animation? The tutorial i followed shows to use the level sequencer but it has to have the actor in the level in order for it to work and i cant have it spawn in if its already there

[obtuse herald]

Use Timelines instead

[north marten]

Crap i completely forgot about those, thank you

Can timelines work with material parameters?

[odd ember]

sure

[icy dragon]

Yes.

[north marten]

Can someone give me a quick crash coarse on that please?

[odd ember]

something easily googlable

[icy dragon]

As far as the Timeline concerned, it just outputs float for anything else to feed from.

[odd ember]

I'm sure there are tutorials by the boatload

[north marten]

yeah I was looking around and havent found anything for it, just meterial collections and using the sequencer

[odd ember]

maybe try using the keywords

[icy dragon]

Basically on Timeline's update exec, set materal instance dynamic's scalar parameter, and feed its float input with Timeline's float output, which was fetched from the value in Timeline's current time.

[north marten]

alright Ill see what I can do, thanks for the help there

[uncut lark]

so Im having an issue. my walk button will override the normal walking behavior. For now, it will just continually walk at the walk speed until you let go of W, then itll return to its original behavior.

Any ideas?

[fallen glade]

Is it possible to have request a random point in reachable range but in a doughnut so it's not too close to me?

Right now I'm doing it like this:

Get random point
Is point far away enough?
If not, fail,
Repeat after a delay

[odd ember]

should be

[uncut lark]

Yeah there should be like a range value

[odd ember]

even easier

I was going to suggest the math

[fallen glade]

you guys mean by code or bp?

[obtuse herald]

I can't remember one

[obtuse herald]

would be hard because the point needs to be reachable

[fallen glade]

I mean it's working now but I'm getting a lot of false results depending on the doughnut size

[obtuse herald]

yeah honestly I wouldn't know a better way

[fallen glade]

oh well thank you anyway 🙏

[obtuse herald]

you could try the EQS way

[odd ember]

ternary operator?

[obtuse herald]

?

[odd ember]

select node

[obtuse herald]

yeah but where would that help?

am I dumb rn or..?

[hybrid ether]

Hello, I have building system and its like placing actors and then destroying actors. Base building like rust or ark. How to save those?

[granite jacinth]

hi, very new to ue4, i'm trying to ge tthis "character rotation" variable to send the number into my anim blueprint, but i don't know how. anyideas at all?

i need the number to end up here

[tacit oyster]

Hi everyone, I'm creating a chat system. I use the bp player state to store the nickname (it comes from the gameinstance). For first I spawn the character, after that I assign the nick to the player state. The issue is that when the node called to assign the nick is executed the spawn has not been completed yet, despite the node for the spawn comes before the node for the nick. The only way I found is to use a long delay. Is there any solution? Thanks.

[earnest tangle]

How did you determine the spawn is not complete?

[fallen glade]

Do you know what's the best learning resource to learn EQS? I find it very confusing

[obtuse herald]

actually, I got another idea:

(I didn't test it tho)

[obtuse herald]

https://www.youtube.com/watch?v=kL0m0jOudQY also this made EQS clear to me

[dawn gazelle]

In your Anim blueprint you probably have an "Event Blueprint Update Animation" that has a cast in it that is setting some values. This is where you'd need to set the Character Direction you need.

[granite jacinth]

i made a float variable in the anim bp, which do pull off of?

there's also this one

[dawn gazelle]

The ThirdPersonCharacter cast or the AsThirdPersonCharacter variable.

[granite jacinth]

@dawn gazelle is the stuff on this end ok, no changes?

[onyx token]

okay so i'm currently trying to make 8 directions of dodge with 8 different dodge animations

depending on input

i'm about to plaster my entire blueprint full of AND / OR / XOR / whatever nodes

but before i do this-

is there a better way to do this?

[odd ember]

create a function

[onyx token]

well this is inside a makro

[odd ember]

I don't trust macros personally

[onyx token]

why?

[odd ember]

there's been cases of them not being able to validate data correct, use functions correctly, and in some cases straight up crash

[onyx token]

hmm so i shouldn't use functions and just put 8 different montages in my normal blueprint?

because afaik i can't put a montage onto a function

[odd ember]

I would not do animation logic outside of animBP

possibly, for the animations

[onyx token]

but i thought blend spaces are for looping animations?

[odd ember]

it's for... animation blending?

[onyx token]

yea like running / walking

[odd ember]

but you can also have 2d blendspaces

so you can blend a lower and an upper part of an animation

and have them blend correctly based on 2 values

[onyx token]

ooh nono i don't want the animations to blend, i'm fine with those 8 animations not blending at all

(they can't really blend anyways, they're vastly different from one another)

[odd ember]

well

[onyx token]

i just wanted to know if there's like a "get direction" node or something

[odd ember]

perhaps a select node could work

but again, I would not do this outside of animBP

[dire frost]

what do you mean by "get direction" do you mean like where the player is facing or where is the player going?

[onyx token]

hmm... can i play animations in the animBP with an event, or do i have to have a bunch of booleans and put it on Update Animation?

[onyx token]

input direction

WASD

or controller input

[dire frost]

oh, you can just get the input axis for each one

[odd ember]

those are the same values

[onyx token]

so i got this for my attack animation, the bool "Firing" gets set to active when i press Leftclick

so should i make 8 different bools and put them all into the animBP?

or maybe make an int and have a selector in the animBP

[odd ember]

handle animations in the animgraph, not the BP graph...

but

you somehow need to collapse those 2 values into 1 value

[onyx token]

wait in the animgraph?

i'm supposed to handle animations here??

[odd ember]

the whole point of the animBP is the animgraph

if you click on the "default state machine"

yes

because the animation graph runs on a separate animation thread whereas BP runs on the game thread

[onyx token]

i see....

but how would i play a different animation in the animgraph tho? With a bunch of Layered blend per bone - which just are set to all the bones?

[odd ember]

the same way as you would otherwise

it's a question of transition

[onyx token]

how would i do otherwise?

[odd ember]

you can handle it inside of a single node

called BlendPoses

in fact, I handle all my animations through that node

[onyx token]

i see....

the thing is- all the tutorials i watch, they literally just play animations in the third person character blueprint - screw it

i never knew you're supposed to play them in the animgraph

[odd ember]

montages where things are happening as a cutscene or similar can be done in normal BP

but if you're actively playing while animating, you'll want to have the separation

[odd ember]

it's kind of in the name innit

[onyx token]

well i guess....
Blueprints are named blueprints despite not being blue

[pseudo narwhal]

Hi, do you know how can I get all the elements from a widget inside blueprints? I dont want to create references for all of them

[odd ember]

blueprints refer to schematics because they used to be drawn on blue cloth with chalk afaik

or no, it was actually paper

[onyx token]

create a reference to the widget and you can control them the individual parts?

[odd ember]

https://en.wikipedia.org/wiki/Blueprint this might be a more in depth version

[pseudo narwhal]

I wanted to select all of the elements (images, text, buttons...) at once, isnt there any specific node for that?

[onyx token]

nope

ok so this can't be correct

do i need to do this for every single animation?

and then have 1 bigass int to select them all?

[pseudo narwhal]

Thanks @onyx token , I'll do it one by one then..

[odd ember]

I would suggest creating an enumerator for directional inputs

[onyx token]

ok sure- but you get what i mean

[odd ember]

yes

then the mapping between input and enumerator

is where it gets interesting

[onyx token]

wait so i actually just stack 7 "Blend poses by int" nodes?

[odd ember]

no

[onyx token]

and the question is just how i choose them?

[odd ember]

just one node

if you make the enumerator

you can blend poses by enum

[onyx token]

but where can i set more?

[odd ember]

read pls

[onyx token]

ooh you mean one of these
https://cdn.discordapp.com/attachments/847253861403197471/905547570951094322/byfy7zrdaX.mp4

ok hang on

lemme get an enum, maybe it gets less if it's context sensitive

[odd ember]

that's why I said make one

that represents your directions

[onyx token]

uh.... so.... this?
https://cdn.discordapp.com/attachments/847253861403197471/905548249824378880/h7Kh7Nqn5j.mp4

[odd ember]

yep

if you make more enum states the node size increases

[onyx token]

but i have a bunch tho...

[odd ember]

you'll have 8

[odd ember]

if you right click on the node, you should be able to add or remove poses

[onyx token]

ooooh add pin for element!
i would've never ever found that

ever

[late cave]

wait until you discover that some nodes have stuff to change in the detail panel only...

[odd ember]

anyway

the next step is converting your input into an enum

you basically have a 2d vector value of [forward, right]

[onyx token]

wait hang on, i need a default null value in my enum right?

[odd ember]

those go between -1..1

[onyx token]

not just 8 different directions

i also need a "not rolling at all"

[odd ember]

you dont

you only want to transition into a roll state when rolling

so having a default state isn't necessary

but it's there regardless

[onyx token]

alright.... So how do i fill the RollAnim? Can i pull it from my third person character via animBP?

[odd ember]

so you have the animations somewhere as assets

just add them where appropriate

[onyx token]

sure, i call it the "noodlynator"

[odd ember]

all you have to figure out now is how to transition your inputs into the enum

[odd ember]

I don't know where your camera is in relation to your character, but basically this

[onyx token]

ok wait but... how do i get it to default now?

like

i can set the int

to 1-8, no problem

based on which WASD is pressed

and if i set it to 0 it goes default?

nvm i can't set it to 0...

[odd ember]

you put this inside your animation state machine

not your end result

[onyx token]

[onyx token]

i don't wanna take up so much of your time, i feel bad, are there any tutorials i can go through that explain it all to me?

[odd ember]

it's really intuitive

but yeah idk there probably are

I don't know the tutorial stuff out there

[onyx token]

so i'm using the standard mannequin.... i would do this then?

[odd ember]

what I gave you with the blend poses will most likely not be covered very easily, but the transition between states in an animation state machine will definitely be covered

and all you need to do is to take that blendposes node

and put it inside a node inside the state machine and figure out a transition condition

[onyx token]

okay....

so the transition condition would be me pressing the roll button

and then i'd put the enum inside of the node inside the state machine

which is inside my anim graph, being filtered via a bone filter

which is inside my mesh

which is inside my third person character blueprint

what is happening

my brain hurts

[odd ember]

well consider this

I have about 7 systems layered on top of each other in the game world alone

never mind what is going on on the character/player

games are very complex machines

[onyx token]

i'm in

system layer 4, going deeper...

[odd ember]

lmao

[onyx token]

wait, if i add a custom event in my character mesh animation BP-
Why can i not call it in my third person character if i have the mesh right there?

oh wait, it's because i'm dumb.

[dire frost]

<@&213101288538374145> this one right here

[torn kettle]

:no_entry_sign: Omnicy#3240 was banned.

[nimble vortex]

thank you.

[onyx token]

wait wtf?

[odd ember]

it might be worth handling a lot of the initial logic on begin play instead of using expensive functions on the animation tick

what you do want on animation tick is switching direction and checking for input

[onyx token]

ye nono i just wanted to use the Shift key as a way of setting the "i'm rolling" bool
and set an int in my third person character BP - which i would then send via the custom event over to my animBP

should i use an interface instead?

i'm confused why the custom event doesn't work...

[odd ember]

you need to bind your event dispatchers if you want a direct link

[onyx token]

oh right event dispatchers were a thing too

okay, so now i got the rolling to work - but of course it never stops rolling...

[odd ember]

have you set the exit condition?

[onyx token]

that's what i'm trying to figure out

the exit condition would be once the animation is done

[odd ember]

it should be the opposite transition of entering

[onyx token]

well entering is "roll is true"

but exiting needs to be "animation is done"

[odd ember]

then drag a new transition back to idle

or what have you

[onyx token]

yea

[odd ember]

there's an animation percentage thing

that you can use

percentage completed or whatever

[onyx token]

all i found is this but this doesn't work...

although epic did use it on the jump animation...

[odd ember]

so you gotta find the same one

[onyx token]

oh you mean the one playing right now?

[odd ember]

yep

[onyx token]

like this? The only ones i have are these ones

[odd ember]

I think there's one called GetRelevantAnimTimeRemaining

which is probably the one picked

because someone has had this problem before and solved it

[mild flare]

Hello,
I am trying to setup a Killfeed and it actually works pretty fine, displays the killfeed on client and server-side. but I still get error messages when I am done testing - can't figure out to avoid that, tried running it with a delay broke it, also did making it reliable

what am I doing wrong?

[dawn gazelle]

Player controllers are only present on the owning client and the server, not on other clients.

[mild flare]

so the multicast is ruining it, do i get that right?

should it be run on owning client?

[dawn gazelle]

Right. The multicast is calling on all other clients, so they can't see that player controller reference. Even if you were to "Run on Owning Client" it still wouldn't receive the references correctly.

[mild flare]

hmm damn, thanks for the hint

[dawn gazelle]

What you probably want to do is have your UI bind to an event dispatcher in the game state. When a player is killed, the server can run an "executes on all" RPC in the gamestate passing the playerstates of the causer and victim which then calls the event dispatcher and passes through the referenced playerstates. The event dispatcher in your UI can then create your message you want to display and read the names from the playerstate value it passes through.

I say to pass through the playerstate reference as it's probably less data passing the references than the entire stringed names every time.

[mild flare]

alright, makes sense will try to make it work like you said - thanks!

[onyx token]

ok.

i got this

and it's being triggered by this

which works

and to go back, i wanna do this

which doesn't work.

and i'm stuck. I literally have no idea why.

i tried all of these.

[vapid ibex]

Is there a way to store something in the editor? I'm loading an XML object during the work, and the problem is that the editor crashes if I load it too many times, I'm seeking a way to load it once and then store somewhere.

[dawn gazelle]

You're loading the XML at runtime?

[onyx token]

nvm, i was really really really really stupid.

i never set the bool to "stop being activated"

end me

[onyx token]

but thanks so much for helping me, you're da best @odd ember

[vapid ibex]

No, in the editor. Basically XML stores my dialogues. In the runtime I load it once in game instance, but I also use it when I'm editing the dialogue trees to display text of the phrases, and apparently it crashes the editor. I use EasyXMLParser.

I guess this gets called too often.

[dawn gazelle]

Is it possible to do the load from file before calling this function and pass the XML object reference in?

[vapid ibex]

Ideally that's what I want to do, yes. I just don't knowe where to store the XML object when in the editor.

https://forums.unrealengine.com/t/store-variables-values-in-editor-utility-blueprint/144997/3
Found this, will try that approach and see how it goes.

[trim elbow]

I'm trying to make my character invisible to the AI when it's hidden in darkness. Added collision to the light blueprint and I got no clue how to set in the overlapped area to be visible for the AI

[odd ember]

that's uh

a very difficult thing to do

early thief games could do it because their renderer was entirely software based

so light values per vertex were available directly

[trim elbow]

But the sphere collision should't technically solve that for a simple game ? I did a boolean variable isHidden and trying to set it to true on collision , however no clue how to make the AI ignore the character.

[odd ember]

you can fake it by having a collision that blocks the visibility channel or whichever channel the AI uses for vision

but that sounds like a boatload of markup, with a lot of markup debt and performance issues

there aren't really any solid solutions for this as of yet

that's why no game has done it since the thief series

[icy dragon]

I'd say to fake it by having the static dark areas to be covered by a trigger sphere/box, and do a check if player character overlaps with it.

Of course, that has to be static, and you would make an exception to the rule if the player overlaps with another fake light trigger areas.

[odd ember]

you don't have to consider players overlapping it

[faint pasture]

You can either calculate lightness heatmap in 2 or just dynamically calculate illumination by lights within range etc

[odd ember]

if you have the correct collision channels blocked it's automatic

[faint pasture]

Like if you have 5 lights in relevance just run some function to calculate an illuminance from distance and a line trace vs visibility from light to character.

[odd ember]

a light heatmap sounds like an interesting concept, but it's probably costly... either in terms of production and/or in terms of performance

[faint pasture]

It all depends on the design. If it's 3d then I'd just trace vs lights and calculate it dynamically.

[odd ember]

I would imagine it more like a navmesh style map where light values are mapped perhaps

but certainly not something that's possible in BP

[odd ember]

sounds very expensive performance wise

[trim elbow]

I'm a beginner so guess I 'll go with the simpler way as with the trigger volumes .

[odd ember]

you don't need to have trigger volumes. the collision just needs to block vision

[faint pasture]

Around 10 traces per frame is absolutely dirt cheap. I do 1000 in worst case for a FOV system and it doesn't affect perf.

[odd ember]

I'd probably in your case create a custom collision channel that is used exclusively for AI vision, so that it doesn't interfere with the use of other channels

[faint pasture]

You already have Visibity, can also just use that.

I'm sure there might be a way to leverage EQS to do this too.

[odd ember]

10 traces per AI per light in a level with 20-100 AI and some 150 lights? let me see that performance report

[odd ember]

many other unreal based objects use that, including cameras

hence why it's smart to make a custom channel

[icy dragon]

Put in some wager for extra fun.

[faint pasture]

You only need to trace vs player character

And only from lights within a range. Dirt easy

[icy dragon]

What about cover obstructions?

[odd ember]

I imagine this is only when there is a direct hit on player from the trace

[faint pasture]

We're talking illumination here right? Like Theif and Splinter Cell

That's a trace from Lights to Character blocked by Visibility.

Npc seeing the character can be a function of trace from their eyes to character blocked by Visibility

[trim elbow]

More like a simple lowpoly maze game , that i'm trying to hide/crouch in the dark areas to avoid patrolling AI's

[odd ember]

I'm still wondering how your trace alone will account for illumination based on the information of the light. a custom light class with exposed volume that has linear values for illumination is perhaps the best case, and even that sounds a bit dodgy.

[icy dragon]

I'm putting into account cover system for the heck of it. Say, player hiding under a bench or behind a protrusion.

[faint pasture]

And whether or not they see you is
Illumination x Visibity or whatever

[odd ember]

again it doesn't seem you take specific light information into account

so all lights would be the same light

which isn't true

nevermind indirect lighting

[faint pasture]

You can do a distance function etc.

[odd ember]

yeah but you're still not taking into account any light information

which means a candle and an industrial spotlight have the same effect on the AI

[faint pasture]

Ok so then you use Power in the function.

Illumination = TraceHits x Power x 1/distance etc

[odd ember]

I'd make prop actors where the stealth collision is built in, in a case like that. it's not going to be perfect, and perhaps some adjustment will be necessary. but you'll be a lot better off than any of the way more complex systems necessary for this otherwise

[odd ember]

and where does this power come from?

and what is it based on?

[faint pasture]

Whatever you want, or just take the Illuminance off the light component.

[odd ember]

again that's just a linear distance to the light

it doesn't account for e.g. IES textures

[icy dragon]

Considering you're working on a low poly game, you might want the tracers to be more generous. Let's say around 40 cone shaped line traces.

[faint pasture]

Well no shit lol, but you can easily use direction and cone angle etc to filter it to the general light shape.

[odd ember]

I can't imagine the performance issues with 40 cone traces going on

[odd ember]

good luck with that

it's for good reason there hasn't been a commercial game that has tried this

[faint pasture]

What alternative are you suggesting then that uses the IES then?

I'm guessing none. So checking for a general cone is better than nothing. Make your light profiles fit the cone close enough and call it a day.

[odd ember]

I'm not suggesting an alternative for any of this. it's a pipedream to try and make something like that work through traces, and I don't think the end result will be worth the effort put in.

I already suggested just using the visibility collision for the person asking, and keep it at that

and perhaps the closest to a "professional" solution would be something like an actual navmesh that takes light values off the ground and allows AI to sample them

which would likely require some degree of baking (e.g. limited dynamic light support)

[icy dragon]

People just generally lower their expectations when it comes to lowpoly games and its feature implementations. Unless the game style is hyper realistic, they'd expect the AI to be more generous and not cheesing them with realism.

[vapid ibex]

Every time AI spots the player, run a check for if isHidden is true or not, and if true - simply abort the whatever it must do when it spots the player.

[odd ember]

again you can avoid that by just having the right collision channel

[faint pasture]

Skyrim does it exactly as I suggest.

https://gaming.stackexchange.com/questions/37662/does-light-affect-sneaking

Stop being a Debbie downer.

[icy dragon]

It's just given that low poly = less realism all around

[odd ember]

that's not at all what you suggested. they use complex calculation of light values that do not seem linear whatsoever. it's also not just a line trace to anywhere, it's specific spot, which probably allows for some degree of GL magic to happen. probably why they can pull that much vis information

[icy dragon]

As far as the logic sight goes, typically games see the player as either a huge box or cylinder/capsules.

(MGS2 seem to be the exception by detecting per limb collision with artificial delays)

[vapid ibex]

You don't need trace. Just simple dot product between direction to you and the direction the light faces with check if it's less than the angle of light's cone.

But then again, yeah, true stealth is very hard, since I don't know if it's even possible to solve cases when for instance you're in the shadow but there's a bright lit wall behind you, so you CANNOT be hidden.

[odd ember]

no accounting of the indirect light value associated with said light, only works for linear illumination, does not take into account complex (e.g. IES texture) type information

points I've already made further up

[vapid ibex]

You don't really need to anyway? Approximation is more than enough unless your character is an ant and it's really detrimental if they're between the rims of IES texture or no.

[odd ember]

approximation is more than enough, which is why even most stealth games don't bother with a light check and instead either implement through other means (e.g. markup) or not at all

[vapid ibex]

I suspect that it's not that they don't bother, it's that their versions are more optimized than linetracing to every light in the vicinity.

[odd ember]

I know that they don't bother

at least for some games

[icy dragon]

I'd say 40 line traces covering up a cone is pretty generous, and you could even skip outer walls that players can't hide with at all.

Dangit, I think you can even reduce the trace count if player character's overall hitbox is not on sight at all.

Only increase the trace count if player hitbox is on sight, then check for the limbs hitboxes.

[odd ember]

just adding to this point, there is a difference between perceived safety and actual safety, and it's much easier to play on that difference than it is to make AI work well with lights

[icy dragon]

If you want to go further, don't line trace at all if distance to player is further than max linetrace distance.

[odd ember]

I wouldn't do a single trace until more conditions have been fulfilled, personally

[vapid ibex]

Yeah, UE's unaccessibility to light levels bite me when I wanted to make AI that avoid lights.

[odd ember]

within maxrange/within dot half angle/trace

[vapid ibex]

Just stopping it from going closer than needed to a light was simple enough, but then I wanted it to pathfind while sticking to the shadows...

[odd ember]

it's not UE's fault per se, it's that modern graphics libraries aren't necessarily able to all use the same functionality due to the hardware involved. thief's software renderer worked because it didn't require any specific extra hardware

[vapid ibex]

I even pondered some ridiculous hacks like "render a small 2x2px camera view right down the NPC's center, and try to sample brightness of that texture"

[odd ember]

I mean, the NPC's visibility doesn't really matter

it's the player's location that matters

[vapid ibex]

Not if NPC's behavior is affected by how much lit it is. The idea was of an NPC that's cowardly in light but attacks in darkness.

[odd ember]

I see

[faint pasture]

If lighting informs ai as well just bake it to a tilemap and use that, or EQS

Same thing tho, not really sampling GPU light but a function of nearby light and their properties.

[sonic crescent]

Sorry to disturb.... i can't remember.. I need to shoot a Big bullet every 10 Bullets... What was the node to do that? I think it was something to do with N ...

[odd ember]

.

[faint pasture]

Modulo %

[sonic crescent]

thanks it be that

[faint cloak]

You guys know how to add all this options to a custom event?

I'm trying to update a health bar after fall damage

nvm i found the way

[tranquil rain]

@obtuse herald thanks for your help worked a treat

[ripe rose]

when my player picks up a weapon and the appropriate static mesh and other visual components are added to their actor, i need other player clients to also do that. do i need to do a repnotify for adding the components? can i just make the components replicate? or what's the easiest way to do this?

[final nimbus]

How do you get blueprint pins to show their values when setting a breakpoint?
I've tried hovering, clicking, setting watch points on this Start/End FVectors and no luck.

[dark crow]

BP ones are not reliable

Just log them

¯\_(ツ)_/¯

[glass crypt]

shouldn't a child automatically call a parent's event? i can't for the life of me call the "interact" event that's implemented in the parent.

tried this too

if i set a breakpoint in the child bp it gets hit, but never hit if i set it in the parent bp

the whole point of inheritance is to inherit functionality from parents so i'm not sure what's going on

is it because it's an interface event?

[tulip mason]

Yeah I think so, not 100% sure but I think interfaces need to be implemented where you want them regardless. Even it's a copy and paste deal.

Only other solution u can think is to have a function in the parent/child called from the interface that carries down from parent to child.

[tranquil rain]

I have checkboxes on list items how could I stop allowing them to be checked after a certain number?

[dawn gazelle]

Keep count after each one is manipulated. If >= amount - disable all unchecked. If < amount - enable all.

[tranquil rain]

I tried this but can only seem to lock all or none

I think I'm trying to halt the whole thing

Where would be better

[upbeat shore]

okay I am losing my mind trying to figure this out so I'll ask here. is there an easy way to do a snap 40-50 degree turn with a character blueprint? I'm trying to set up a basic VR character but every tutorial for a snap turn is with the player being a Pawn and not a Character, so the methods simply do not work, either not doing any rotating at all or for some reason actually changing the location instead of rotation

I can set up a smooth turn super easy, but the snap turn is just not working

[velvet dagger]

I'm trying to make it where when a button is held my character will slowly descend instead of descending normally, how would I go about doing that?

[thorn ermine]

maybe show some stuff you are trying that is not working, or you just want to know how to do this in general?

[upbeat shore]

just in general, but with regard to vr. the iterations i've tried that didnt work are basically just versions of the current template VR snap turn code

i have tried pretty much every single rotate node for everything. it seems like rotators just do not like it when you have an HMD active

[thorn ermine]

just off the top of my head, are you following a tutorial? or just kind of winging it?
there are a few out there, and I see one recently has been updated to handle 4.27 new VR template. maybe start there, unless someone here might know right off the bat.
https://www.youtube.com/watch?v=1rQvPnKvlfk

[upbeat shore]

I've tried both tutorial and winging it

yeah I already checked that one out. I followed it to a T, but instead of rotating the character, it would just kinda move it slightly forward and to the right

[neon heath]

guys i been stuck on this for 4 hours

[upbeat shore]

the problem being that he is using a Pawn blueprint type and I'm using a character, so for some reason it can't work the same

[upbeat shore]

at least I think that's the issue

[neon heath]

any ideas? I am literally just trying to make a car movable / drivable - I have everything setup but for some reason no results still, yes everything is rigged, yes the model is being instantiated through the blueprint into the world

following this dudes tut: https://www.youtube.com/watch?v=T6vvnLRzjvY

[upbeat shore]

oh. my. god

so now i have it working

[neon heath]

forgot a semi colon? XD

[upbeat shore]

earlier I attempted to use the add yaw input with a do once, but it was just moving smooth

so I deleted it, but I figured I would redo it to show "i tried this but it was only smooth turning" and I go to test and it is snapping

[neon heath]

very nice!

[upbeat shore]

so I guess i'm happy its working but why didnt it work earlier

[neon heath]

I feel dumb too right now, spent 4 hours to get a damn car to move and still having issues

using chaos Physics

chaos vehicle plugin

etc

[upbeat shore]

man, I wish I could help you but I know nothing about vehicles in unreal

also it seems like the issue was before I had it in a function? If I put the same code into a function it breaks, but outside it works

[thorn ermine]

now we could be getting somewhere. doonce is dependant on context, if its in a function, the context is within that function, so if you call doonce outside of a function, the "once" is dependent on the life cycle of that function ( it could be an event, or tick for example )

[upbeat shore]

OH that makes a lot of sense then

[thorn ermine]

but glad you got it working

[upbeat shore]

because that function would just be constantly repeating due to it being executed from an axis event right?

[dawn gazelle]

Have you actually possessed the car actor?

[neon heath]

what do you mean by possessed? I have the blue print with everything in it

[dawn gazelle]

Possessing an actor is what allows you to control it.

[dawn gazelle]

You placed the actor in your scene yea?

[neon heath]

yes

if you'd like, I could share screen with you

[dawn gazelle]

Click on the actor in the world and look at the possess options

You want to change Auto Poessess Player to Player 0.

[neon heath]

im in ue5

[dawn gazelle]

Should be something similar I imagine. I'm not at all familiar with Ue5 yet.

[neon heath]

oh there

those are the default settings

[dawn gazelle]

Yeah change Auto Possess to Player 0

[neon heath]

done

I have a lot better camera rotation now @dawn gazelle

but still no movement

[thorn ermine]

I mean the amount of times and even the speed at which it gets called has kind of no impact on the state of the function itself, the documentation on this is also not very clear, so trial and error suggests blueprint functions reset their state upon entry ( we know it does this for doonce ) whereas the tick function itself does not reset this state each time it gets called ( otherwise doonce would never work as expected )
https://forums.unrealengine.com/t/do-once-not-doing-once/1794
This is going to cause problems for more people for sure, but it is also a good idea to make small test cases that you can quickly assert behavior independently of your game, if you are unsure of exactly how or why something works, specially if you are making it a prime mechanic in your game 🙂

[dawn gazelle]

Try checking your input axis values by putting a print string after them and feeding in your axis value, specifically Throttle.

[neon heath]

yup i had done that for an hour lol

its insane - like, they print out values when they aren't even being pressed

[dawn gazelle]

yeah they would since they're axis - they always fire.

[neon heath]

it seems for some reason, i think my issue is with the input settings

right axis true

fair

gah

[dawn gazelle]

and you are getting values out? like between -1 and 1?

[neon heath]

oh i was printing text before, sorry I misread your above

damn 0

[dawn gazelle]

Check your input binds.

[worthy frost]

i always do Axis Not Nearly Zero to a branch

so i don't get spammed

[neon heath]

W = throttle, represented by a var of positive 1

should be sending

[worthy frost]

S is also -1

err 1`

it should be -1?

oh wait nevermind

its bound to different axis

@neon heath does the value increase when you press the key?

or is it always 0?

[neon heath]

always 0

so its not being recieved i think

[worthy frost]

do you have anything else that could be overriding that

[worthy frost]

and consuming the input (tho it should not even execute)

[neon heath]

nothing else really in here thats saying 'w' or 'W' as input

[worthy frost]

no i mean another event in another blueprint

[neon heath]

up here there is tho

[worthy frost]

bound to the same input

[neon heath]

but that shouldnt be valid to reference because that would be in access of a diff bp like, firstpersoncharacter etc

let me see

[worthy frost]

its likely the key got consumed

[neon heath]

jesus wow

i had done a test earlier in another BP

that was it

[worthy frost]

yeah it was being consumed elsewhere

[neon heath]

so i got the car moving now

thanks btw @worthy frost @dawn gazelle

but its super slow lmfao

[worthy frost]

well

[neon heath]

how i speed this thing up, maybe just multiply by some vars?

or what

[worthy frost]

you need to provide a multiplier to your input

[neon heath]

right yea

[worthy frost]

Axis * value * DeltaSeconds

where value is your speed multi

so Axis * (500 * DeltaSeconds) (to ensure car has same speed if frame rate changes)

[worthy frost]

maybe i dunno its 6 am

[neon heath]

lets see if this is yummy

[worthy frost]

and not slept

[neon heath]

damn

i did that last night

i feel it

2 am here

up since 11 am

same stuff

[worthy frost]

been working all day, crunching last minute fixes for DLC release

[neon heath]

went bed at 6:37 last nite xd

very nice

whats your project?

[worthy frost]

Red Solstice 2 on Steam

[neon heath]

very nice m,an

im working on a nft game

cant say too much but yeah

[sage pecan]

Hi, I would like my character to stay crouch if button is down, I'm thinking of looping the animation, how do I do that?

[neon heath]

prob use a boolean value, say if(bool==true) then basically animation.looping = true

etc

then if(bool==false) animation.looping = false

[sage pecan]

The problem is, I don't know how to do the animation looping since the event is fired only once when pressed

So the animation will be played only until the end of animation

[tawdry basalt]

you can use flip flop

how do I add objects in pawn to an array?

[thorn ermine]

And thinking about it a little more it seems more likely that those type of methods ( doonce, doN, etc. ) maintain their state via the Event Graph
so for events, tick, anything that you do inside the main event graph, will respect that state, whereas functions get their own "new" mini event graph upon entry, and it gets "destroyed" upon exit. 🙂
ok, done with this now, lets do some work

[worthy frost]

@sage pecan i would not use a montage for crouching

this would be done via the animation bp

then again looks like your doing something crazy cause deactivating the movement component, why?

also crouch will set the capsule size to crouched size (in the CMC)

so not sure why you are manually setting it there also

all you need is your animation bp to query the player and see if its crouching

but 100% i would not use a montage for crouch

[sage pecan]

I will try using that
I deactivate the movement because when I input the movement when crouching, it will overwrite the crouch animation and play the movement animation

[worthy frost]

cause you set your animation BP up wrong

and your playing montage,

[sage pecan]

I also thought that too, but when play mode, I noticed that the capsule component doesn't change, not sure why so I do it manually

[worthy frost]

it 100% does change

CrouchedHalfHeight in the CMC

[sage pecan]

Can I know when I should use montage and AnimBP instead?

[worthy frost]

(click the Character Movement Component in your character BP)

Montage are for things like sword swing attacks, etc

things which fire off dynamically

[ripe rose]

the following is part of a repnotify that triggers when a player fires their weapon. it works perfectly under normal circumstances, but if the player is holding the fire key when they enter relevancy range, it doesn't work. it actually runs the code, but that print statement i put there displays the name as blank. meaning it goes through the node to create a particle system, but it's null after it tries to save it
https://i.imgur.com/Hb7Eyqf.png

[worthy frost]

movement, crouching, etc should be AnimBP

[sage pecan]

Ohhh ok ok

[sage pecan]

This right?

[worthy frost]

bo

no*

CrouchedHalfHeight

and yes you need CanCrouch ticked also

its misleading cause its under Nav Movement

but the movement component checks that bool, to allow crouching, even for non nav agents

its weird but it is what it is

[neon heath]

I think my iq has dropped about 50% or so due to sleep deprivation, would someone be kind enough to tell me again - how do i just get the distance between 2 objects, yes a float - a float / vector - vector but more in depth

[worthy frost]

    FORCEINLINE bool CanEverCrouch() const { return NavAgentProps.bCanCrouch; }

    /** Returns true if component can jump */
    FORCEINLINE bool CanEverJump() const { return NavAgentProps.bCanJump; }``` as seen here

[ripe rose]

https://i.imgur.com/BjS3QNw.png

[worthy frost]

(Location - Location).Length

[sage pecan]

So the capsule component will follow this height?
Will it shows in the play mode if I disable 'Hidden in Game'?

[worthy frost]

or use that node 🙂

[neon heath]

I feel dumb because Im not sure what to use for the actual vector

im trying to do FirstPersonController and an in game object

but I need to convert to vector

[worthy frost]

?

[upbeat shore]

alright now I've got another issue. the camera height is either way too high with my guardian floor floating above my ground in game, or its too low and the guardian floor is beneath the ground. I'm using a quest 2 with the link cable. I cant test on my index if its a persistent issue or just oculus

[worthy frost]

you want to get what?

[neon heath]

player and a car

[worthy frost]

yes but what do you need/want

what you trying to achieve

[neon heath]

if(dist of 2 objects <= 1) ill debug a message

[worthy frost]

Car->GetActorLocation Player->GetActorLocation

[ripe rose]

get player pawn, get actor location

[worthy frost]

Distance < 1

[neon heath]

there yes!

getactorLoc

you guys are both great

thats what it was!

[worthy frost]

also

there is a node

Player->GetDistanceTo(Car)

which is cleaner

[ripe rose]

kaos do you have any inkling why this isn't working? it was actually working when i had it all in my player BP but i moved it over to a component and now it's not working. replication for the component is on

[neon heath]

beautifulll

[worthy frost]

@ripe rose i am not sure, if the particle fails to spawn

then the component its meant to attach to was null

try printing the attach component

[ripe rose]

o

[upbeat shore]

i got it. needed to make a parent scene component for the camera and controllers

[ripe rose]

i thought i checked that already but you're right

now i just have to figure out why that is null which i also don't understand rip

shoulda been created on beginplay of the component for all clients

i mean it is

it just goes null after leaving relevancy range

[worthy frost]

not sure what that component is

where is it created?

you do know relevancy destroys the actor right?

then recreates it when they enter relevancy

[ripe rose]

the player BP adds this weapon component on its beginplay, and then the weapon component adds a static mesh to the player and saves it as a reference

i vaguely understand relevancy

i probably have a gap in knowledge somewhere

[worthy frost]

yeah so its likely something is not running again

when player enters relevancy

[ripe rose]

yeah sounds likely

[worthy frost]

we just made our players always relevant

but for a 8 player co-op it made no sense to hide them

[ripe rose]

yeah

[worthy frost]

we do use that for the AI tho

cause we can have up to 200 ai in the world

and that would be nuts 😛

[ripe rose]

wellt he good news is the static mesh is being re-added when re-entering relevancy, it's just the reference that gets wiped

when something re-enters relevancy, does is just recreate all of the components it had without running their beginplays?

[worthy frost]

it should run the beginplays

[ripe rose]

weird

[neon heath]

goodnight guys - thanks for your help, I much appreciate it!

[ripe rose]

nite

[ripe rose]

it's trying to run the repnotify function before the beginplay functions, so it hasn't yet set the reference that it tries to use in the repnotify

idgi

This is how it is supposed to work. You can handle your logic in BeginPlay and be assured that the variable has been replicated by then.

maybe i'm doing something backwards

yeah i think i may more or less fully understand what's going on now

was simply an order of operations problem

wasn't a problem when i had this all on the player bp because the components weren't being added at beginplay

[pure walrus]

i just learn u cant check a checkbox and add it to a widget in the same frame UNLESS u check it before u add it (still same frame)

happily losing 30mn on this to start the day in shape

actually nvm it doesnt work
i had to delay to next frame

[ripe rose]

one time i had a variable that would set in editor correctly but in standalone wouldn't. i had to put basically a "if(true)" to make it work

ue4 can be special sometimes

[maiden wadi]

Wut? You should be able to set checked state after adding the checkbox to something else i the same frame?

@pure walrus How are you creating that checkbox?

[dim robin]

would you suggest any workaround to fix a physics simulated sphere to prevent it from rolling "forever" on a non-flat plane?

[earnest tangle]

give it a nonzero angular inertia or whatever the setting was called

[earnest summit]

Hii peeps, question I am trying to add a "Fire Rifle" animation to my character, If I dont have looping enabled it only does it once and with looping on it doesnt stop after releasing the mouse button. Is there a way to break the loop or maybe a more common use to add a animation like this?

[brittle plinth]

hey guys
Do you know how to add cinematic black bars ingame?

[earnest tangle]

Easiest way would probably be to just add a widget which has bars on top and bottom

[brazen pike]

You could probably make your own loop. Just a custom event that fires the animation and, after waiting the same amount of time the animation takes, calls itself or loops back on itself. Then you add a branch somewhere in there with a bool variable that is set to true when the character starts firing and set to false when they stop.

That way the animation only loops when the character is firing

btw you might want to turn the animation into a montage rather than just a straight animation. Tbh, I don't know why it is better but when I used straight animations in my own project it would mess up other animations and using a montage fixed that problem. Could just be my own issue though, I haven't taken the time to fully understand it all

[earnest summit]

Thanks so much for your response and help, I tried adding a Montage but with no success (the anim didnt play at all) I will try to do the montage again since everyone on google suggests using montages and the play anim breaks my other animations as well.

[brazen pike]

Oh I see you were asking about that now. Yeah I would definitely suggest using a montage.

[earnest summit]

Alright I give it a try thanks again bro 🙂

[brittle plinth]

Great, How do I add that

?

the whole widget

Trough out the game

done

😄

[willow phoenix]

quick savegame node question (nothing found about this here https://docs.unrealengine.com/4.27/en-US/InteractiveExperiences/SaveGame/)

Where does the editor store my "Save Game Slot"? i just want to wipe it for bugfix and i do not want to create a new "slot"

[icy dragon]

Look on your AppData folders.

[willow phoenix]

i mean from within the editor, its persisting the "stop play" ofc

oh

wait you mean appdata on win? 😄

[icy dragon]

Yes. That's where save slot files usually go, including those created from PIE

[willow phoenix]

do you know the path?

nevermind, found it 🙂

save game slot file is under in the project files \Unreal Projects\MyProject\Saved\SaveGames

[lucid lynx]

I have a -180 to 180 variable that indicates a direction in 3D space. I need to convert that information to an x,y plot of 0-1 and 0-1.

[gentle urchin]

Example value? What would -180 be in x.y space?

[lucid lynx]

-180 to 0 would be 0 to 1 on the x space for example.

[gentle urchin]

And 0 to 180 would be 0 to 1 in y space?

[lucid lynx]

Let's see...I think 90 would probably be x=0, y=0.5

[gentle urchin]

180 would be x 0 and y 1?

[lucid lynx]

Yeah, that's the idea. I think x would be 0.5 though.

[gentle urchin]

• 180 would be x 1 , y 0?

Map range clamped x2should solve it

Guess you gotta know the values you want

But the node that can solve this would be map ranged clamped

One of them handles -180 to 0 in x
The other handles 0 to 180 in y

However scaled you want/need

[lucid lynx]

Ah, I think that's what I'm looking for.

So I just feed the same info into that node two different times, one for my x and the other for y?

[gentle urchin]

Ye

Clamped makes sure the value isnt extrapolated beyond the values you've set

[opaque patio]

Anyone know what I'm doing wrong here? The teleporting works fine when the vehicle topples over, but only once. Once it "teleports" the whole thing of rolling over and teleporting doesnt work anymore. The 2nd time around it does print string "toppled", so it does go through it. I'm still a noobie, so if you're willing to help (thanks a lot btw 🙂 ) please take it easy on the terminology

its the teleport node that doesnt want to work twice for some reason

[maiden wadi]

@opaque patio What's with the GetActorOfClass?

[sacred current]

How can I change a value float smoothly from 1 to 0 over a given number of seconds, using a set timer by event?

[opaque patio]

only way I could get the actor reference, idk, tried another route but didnt work

[maiden wadi]

@sacred current You can't. Not unless something else is updating whatever you're using the number in. You need some sort of Tick,Timeline, etc. And by then you may as well just update your own float there.

[formal wren]

When using child actors, this happens after a while:

[maiden wadi]

@opaque patio But this is the blueprint of the car you're flipping isn't it? You should be able to just call this on self if that's the case?

[formal wren]

For some reason ue keeps the created child actor isntances on the map after playing

[opaque patio]

Thnx, ill try that. Thought of that as well, but didnt work. Maybe it does now

[formal wren]

resulting in my character having 20 hands instead of 2

[opaque patio]

That was it, thanks a lot!

[maiden wadi]

@formal wrenIs that via ChildActorComponent?

[full hare]

Well Oh boy i hate behavior trees anyone has any ideas why it isnt working? the GetBool casts to the controlled ai gets the boolean which works but then the blackboard based condition like breaks everything o,o

[earnest tangle]

is the idea that all those nodes will run in sequence?

so first it finds a location, then it gets a bool, then it moves?

[full hare]

yep the find loaction and move to works but i wanted to add a boolean to the move to

location*

[earnest tangle]

Yeah so the problem is you're using a selector and not a sequence

[full hare]

i tried using a sequence as well but let me try

[earnest tangle]

selector runs the nodes that you have in it until one of them succeeds

sequence runs nodes in it until one of them fails

so in this instance, the selector would probably never get to the last node if get bool is always successful

[full hare]

the weird thing is if blackboard is well not true then it stops since it doesnt suceed but if i use the other one then it stops when it suceeds

i meant if the boolean not blackboard mb

[earnest tangle]

Well yeah it would stop in the false-case because your blackboard decorator fails so it won't run the node in that case

[trim matrix]

Hello. If I am doing this manipulation it adds extra item , which wasn't in array

[full hare]

i used the sequencer now after the blackboard is true it no longer checks if the boolean changes and even if i use a simple parallel and i see the value change the blackboard doesnt care and execute the code anyway even though it isnt longer valid and it should stop

[earnest tangle]

so you want it to abort the move if the boolean value changes?

[full hare]

basically I want it only move to only if the boolean is true if its false dont move if its true again move there again

in short i have an enemy and it always follows the player but i want it to stand still when it shoots but after it shoots it needs to follow the player again

[earnest tangle]

Maybe try setting the blackboard decorator so it aborts self if the value changes

It should have an option for that

[full hare]

in on value change i have no options there

like in the observer aborts

i just have none

[earnest tangle]

That's odd, it should definitely have "self" 🤔

[full hare]

well there were no options so i had to cheese it a bit now it works thanks 😄

it didnt have self

but i added it to a simple parallel and now it has self so it works

thank you

[earnest tangle]

well that's good :)

[open elbow]

I'm wondering if anyone knows how to take a screen position that's fed to UE and trigger UI under that screen location? Regular mouse clicks won't work with my project set up

[marble olive]

Has anyone tried to make an Arcade machine with playable mini games? I would be interested hear if anyone has.

[earnest tangle]

I have one in my project

It just has one game in it though

[vapid ibex]

I have a problem in my UI blueprint that fills an element with slots. It should be a simple task, but forloop for some reason refuses to behave! What might be the problem?

[earnest tangle]

are you modifying active slots in your loop

if so, the problem is most likely that the last index pin gets re-evaluated every iteration, so the last index keeps becoming smaller and you get less items than you wanted

[maiden wadi]

👆

It is a very good habit in Blueprint to drop anything you're looping over into a function with the loop parameters. Less chances of reeval issues, and loops also tend to behave better that way. Also for the same reason and for a lot less execution, it's a good habit to mark your const BlueprintCallable C++ getters that return arrays with BlueprintPure=false

[vapid ibex]

Oh, so the last index is evaluated every iteration?

I thought it is evaluated only the first time when loop begins - which would be, you know, logical thing to do...

[maiden wadi]

Not necessarily. C++ does the same thing.

[thorn ermine]

I mean you can make it not evaluate it again by introducing a variable, and dont change it during the loop 😆

[earnest tangle]

technically it still re-evaluates it, the value just is constant

[maiden wadi]

If you follow C++, this for instance, would only print one time. Since I is being reevaluated every iteration.

{
  i += 50;
  UKismetSystemLibrary::PrintString(this, FString::FromInt(i));
}```

It's the same for blueprint loops, whether ForLoop or ForEachLoop.

I mean. If you wanted to, you could create your own BlueprintMacro that takes in the end value, or the array, stores it locally, and iterates off of that. StableForLoop, StableForEachLoop

Works well. 😄 May actually keep that.

[glossy bane]

I'm trying to change a vector parameter in cascade trough blueprints but I'm getting no results, anyone that could point to where I have made a mistake?

[maiden wadi]

Use that a User level Parameter?

[glossy bane]

I'm not sure what you mean

[maiden wadi]

In Niagara. What is Acceleration marked as? User, System, Particle, etc

[glossy bane]

This is in cascade not Niagara, and I have just right-clicked and selected acceleration as emitter module

[maiden wadi]

Oh. Brain went straight to Niagara. 😄

[glossy bane]

Yeah I should be able to do this simple effect in cascade so I just figured I would try

Changing the constant for Z axis in acceleration does exactly as expected in the particle preview

[south merlin]

What is the difference between Report Damage Event and Apply Damage?

I didn't even know there was a Report Damage Event until today. I always used Apply Damage

[earnest tangle]

report is for AI perception damage sense

apply damage works with the builtin damage system on actors

[south merlin]

so it wont' apply damage, just let the AI know it got damage?

like shoot a monster to agro it?

[earnest tangle]

that's up to how you want to implement it, apply damage does nothing by default as well

[south merlin]

ok, before I was using the apply damage to change the state of an enemy when you shoot it. Going to look into this damage report. It might clean up some code.

(I"m moving everything over to Behavior Trees for my AI)

thanks

[trim matrix]

Why does this not print to the play mode? Am I going about this the wrong way entirely?

[earnest tangle]

Your print node is not connected to the exec pins

Nodes with exec pins do nothing unless you connect them

[pine hatch]

Hi I have a problem regarding to my blueprints on hit event... I am using the event to set vector parameters on my material.. so when it hits the other actor it sets the normal value to -1 on the hitted location.. it works fine but the only problem is when it doesn't hit the other actor anymore it doesn't set it back to 0... I tried to use isvalid on the hit result.. I also tried to use the on component end overlap event.. but non of those works.. I wonder could I use some kind of custom event or how could I get an event to tell the bp when it should set it back to 0 ???

[south merlin]

@pine hatch is this a damage effect that wears off over time? Or do you mean once the overlap ends it should go back to 0?

[pine hatch]

once the overlap end it should go back to 0 but i have to use the on component hit event it doesnt work with on component being overlap event

[zealous moth]

is there a way to move individual components in editor? Like an Actor with 2 cubes. Move one that isn't root and move the other (also not root)

I am not talking about move component node. Just drag and drop

[earnest tangle]

If you select the component when you have the actor selected you can move it

[zealous moth]

No I cant...?

omg

[earnest tangle]

Works for me unless I misunderstand

[zealous moth]

double click and I can

ZOMG!

[trim matrix]

God i love structures. best thing in the world.

[pine hatch]

is there like an is event active function?

[obtuse herald]

I have a love-hate relationship with them, they are really useful however they can sometimes break messing quite a few things up

[trim matrix]

can to many structures be game breaking?

[fluid stratus]

Might there be a way to go for high values such as like in a idle game? I am hoping to try for high values but things start to break at about 2billion mark. Tho numbers can show about 9 quintillion functionality breaks. I guess you could think of it a endless rpg is what I am working on. But atm 2 billion is the limit which is abit of a bummer then again I am trying to work with crazy ideas.

[earnest tangle]

usually they only break if you change fields in BP structs, C++ structs work pretty reliably :P

[trim matrix]

I have about 20 structures as of right now lol

So much easier to store you information int here than copy and pasting everything voer and over agian

[obtuse herald]

No, the issues mostly releates to editing the strcuts-structer after you used them. Sometimes things will go just fine; sometimes you get compile errors because you now have different struct "versions"; sometimes it compiles with different struct versions breaking things in runtime.

[obtuse herald]

really? well I guess I'll be only using cpp structs from now on

[trim matrix]

This is why there is a system to fixing a structure.

[earnest tangle]

Yeah I haven't had any issues with modifying structs declared in C++

[trim matrix]

Its a simple fix really. Save EVERYTHING, close editor, reopen editor, edit structure, Save structure, exit editor and DONT SAVE, close it. This does not break it.

[zealous moth]

Is there a way to automate adding new components in editor on construction?
I have an array of cubes. I want to add a new cube by clicking the instance editable array and just add a new one in the world.

So click add on the array, adds a new actor component of type static mesh comp defaulting to cube.

[earnest tangle]

construction script can do stuff in editor, maybe try that

[obtuse herald]

My try was always reloading the blueprint, fixed the issues 70% of the time

[trim matrix]

I tried that, but it just breaks blueprints with ease. I lost so many damn projects due to this lol

[zealous moth]

i know that, I just am not sure how adding a component to an array would make it work. Thinking...

[maiden wadi]

If the array is instance editable, and you change the array, it'll run the construction script usually.

[trim matrix]

Im trying out a new method other than doing this, Which system would be better? like this or anim notify??

[remote obsidian]

Hola, with bitmasking enums, is there a way to cast a bitmasked enum to the enum itself?
Eg. I want a function that has an input of a bitmasked enum, but it's not psosible to mark a function input as bitmasked it seems?

Similarly what if i wanted to have a map array of static meshes, with the key being a bitmasked enum?
Doesn't seem possible using blueprints to me?

Bitmask integer is not compatible with enum

[odd ember]

why aren't you handling animations inside animation graph?

[remote obsidian]

Int to byte then byte to enum, is that the path?:

[odd ember]

I don't know that BP is fully setup to deal with bitmask enums if they're not defined explicitly in cpp

(and exposed that way)

[faint pasture]

What if the parameter is a byte

[trim elbow]

Hello all ! I'm trying to get the sprint working , while simulating it never reaches the underlined false condition , while it's being pressed , is there a simple solution for this?

the ui seems to work fine

and that part is the issue i guess

[remote obsidian]

I think that makes issues when going back the other way for comparisons

I think i can make do with bitmask int > byte > enum

[trim matrix]

@trim elbow You are telling it to Move the stamina bar to search for the same value IF it is true or false?

Branch the condition to say stamina on?

add another branch on false, add the > to true?

[earnest tangle]

also if your game runs at even 100 fps, the stamina recovers in 0.3 seconds from 0 to >10

[trim elbow]

the ui display the stamina level properly

[trim matrix]

Thats because its only finding that value.

[trim elbow]

in the underlined part right?

[trim matrix]

Drag stamina On to the branch condition

add another branch to false

connect the condition to that

that SHOULD work i think.

[trim elbow]

i'll excuse myself if i'm wrong as i'm just a begginer

[trim matrix]

False to True then stop

not false flase

https://www.youtube.com/watch?v=cUAvmje9Pyg&ab_channel=MattAspland

follow that

[willow phoenix]

trying to sort my struct array. it is not even close to what im expecting it to happen. where did my brain turn 180°

[trim matrix]

sorry to ask such a simple question but nothing is filtering out when I search, is this a bug or did I click something?

[remote obsidian]

Another hopefully simple question, if I don't want to store my array long term, simply create it before a foreach loop, populate it, pass it to another node then forget about it, is that possible?

I've tried the make array node but it seems like it's not intended to be used this way, only for creating an array in 1 step with specified items

[trim elbow]

oki ty! will follow

[neon heath]

hey guys

does anyone know any really good UE5 assets?

and more specifically - UE5 population assets for random characters / npcs?

my population system isnt supported in ue5 yet

[trim matrix]

https://www.youtube.com/watch?v=2HHJ6AYnwFw

[south merlin]

You might want to do something like, On Hit, start a timer that repeats and checks a bool IsOverlaping? That is true on Hit and goes false on End Overlap Event. Then invalidates the timer. And use that timer to check if you are still overlapping.

[neon heath]

Unfortunately its not a plugin, its a whole system

[willow phoenix]

if anyone wants to sort a struct: i added a remove index for my temp array too, and now it works:

[faint pasture]

Are you sure you can't use a bitmask enum as a parameter? Why do you need to cast it?

[trim matrix]

https://www.unrealengine.com/marketplace/en-US/product/world-director-npc-pro-now-with-multiplayer

[neon heath]

isn't supported for ue5

[trim matrix]

You can convert it.

Just like

Strider is not UE5 supported

BUT converting it, it is now.

[earnest tangle]

Sorting in BP's is kinda annoying, it's much simpler in C++ :P

[odd ember]

not to mention slow

[faint pasture]

Sorting is the type of thing that is very good to have in a function library.

And yes, math in BP is very slow. I changed an algorithm from 8 milliseconds per frame to 0.05 milliseconds per frame just by moving some math to C++

[earnest tangle]

sorting almost anything in C++: Algo::Sort(AlmostAnything); lol

[remote obsidian]

As a function parameter with blueprints I can't seem to make the enum itself multiselectable
If I choose integer I should be able to set it to bitmasked but I don't get that option when setting up a function in a blueprint function library

Just going to keep the function working with a single enum selected input, I'll just have to call it multiple times

For now anyway till I have more time to figure this out

[maiden wadi]

Definitely everything. 😄
MyArray.Sort([](const MyStruct& A, const MyStruct& B){ return A.StructProperty < B.StructProperty; });

[earnest tangle]

Algo::SortBy(MyArray, &MyStruct::StructProperty) :P

[maiden wadi]

Fair enough. Side note.. Don't stay only BP if you're going to do UI. It's just not worth it. Sorting is just one example.

Like.. Here, sort this list.. You need to sort it by seven different categories. That's like, what, 30 lines of code for both ascending and decending for all seven? That'd be a nightmare in blueprint.

[dawn gazelle]

But I thought I did pretty good sorting 4 categories both asc and desc... D:

(only used for a relatively small list too....)

[odd ember]

I keep UI to menus 🙏

other than hud elements, I try to keep all other UI work diegetic

[final nimbus]

Is there no way to change the values of these select pins? I want to have -1 be an option

[odd ember]

don't think so