blueprint

[frosty heron]

the code dropped there is entirely to blame I'm pretty sure

[lofty rapids]

thats unusual it would do that, there must be something in the code thats off because it normally doesn't just change

but i've seen unreal have some weird bugs also

[pulsar vigil]

any keybind to create a new custom event in a bp fast ?

[primal hare]

thank you guys, I think I solved it. It may not make sense but I just set the needed boolean at one extra place and now it seems to fine.

[granite frost]

is their any docs or video that goes over binding function to an animation player for animation blueprint. I am facing error after following lyra and I am not sure what is wrong their and I don't know what lyra did but all the parts where animations was added to the variables are missing and they're all empty so I don't know how to make it work.

[blazing plinth]

Hello everyone.
I'm new to unreal engine and I'm trying to deform a beam under the weight of the player using the finite element method.
At the moment I have normalized the position of the player when he hits the beam.
After that I tried the deformer graph, materials, blueprint and even creating bones in C++ to use them as elements.
But I can't create deformations, I don't know which method is best to use, and in C++, I can't save the bones properly.
I also saw the FemFx plugin from AMD, but it seems to be abandoned and works on unreal engine 4.
Do you have any suggestions? How can I do it?

[untold ivy]

Is there a way to make a list of regularly used tags? I'm about to have a bunch of tags depending on areas of my game, so I kinda want to more easily handle them by having a common tag for each area.

Also, since there is one Blueprint that is basically the "Area manager", how can I set that tag as a variable in there so I can look for every item with that tag?

[storm vigil]

when checking the detailed stats for cpu and gpu, especially for cpu stalls wherein in shows the list of tick events, is it normal to see more counts when opening other bps in editor? and once i close those bps, the tick/tick related counts are reduced? Thanks

[toxic nacelle]

are you talking about Gameplay tags, or legacy tags ?

[untold ivy]

These kinda tags. I'm not sure what difference there are between Legacy or Gameplay tags

[toxic nacelle]

these are legacy tags, and I don't recommend to use them. Gameplay tags are hierarchical tags, with no chance of naming mistakes, and it is possible to retrieve assets that refer to a specific tag (if that's what you're looking for)

do you need this "list of regularly used tags" at runtime or in editor ?

[untold ivy]

I am not sure. I planned on creating all the objects with tags In editor, and "On Begin Play" of the volume to populate the list of items with these tags. So I guess Runtime?

[toxic nacelle]

Other than to iterate over all the actors in the Scene, retrieve each of their tags, and list them in a Map, I can't think of anything better 🤔

alternatively each eactor can notify the manager of the tags it owns at begin play (to avoid iterating)

but this only works for custom actors

[untold ivy]

The basics is that I want NPC to select a random smart object from all those available in a particular shop. Each cone here is a smart object. But since I have a bunch of things that belong "To a shop" I decided to make a "Shop" blueprint that I could query whenever I need something. So Ineeded a way to tell that volume "All these are yours" at runtime so I can use them later on.

[toxic nacelle]

did you check about EQS?

Environment Query System

if not, what I have suggested doesn't work ?

[untold ivy]

Nope. From my understanding EQS was to help NPCs move around areas, here I don't need that. NPC can move around and reach their destinations. I just needed a way to encapsulate things properly.

[toxic nacelle]

what is "volume" is our exemple ?

the volume we see on your picture ?

(that overlaps all the shop ?)

[untold ivy]

Yes

[toxic nacelle]

Retrive all actors of type smart object inside the volume, retrieve theirs tags and find the most common tag is the solution ?

[digital palm]

do you have a idea of how I could blacken the background around a specific object? like having a widget in the background for example maybe?

[toxic nacelle]

render textures ?

[digital palm]

what is that? render target?

[toxic nacelle]

yes render target

you can render your cube inside a render texture

and show the texture inside a UMG widget

with your background

[digital palm]

oh I see

gonna try it, thanks

[toxic nacelle]

good luck 🙏

[wild sage]

Does anyone know why i need to close out my game (package build) to actually delete the save game and start a fresh new game?

My save system is stored in GameInstance

[wild sage]

In other words, going back to the menu and clicking on NewGame doesn't work, it only works if I close the .exe and open it again

[wild sage]

Ok i already found a solution

[clear marlin]

wdym not enough info, i want that effect where anything is in shadows is invisible and things in light are visible

[lunar sleet]

There, that’s a bit more comprehensible

[clear marlin]

Oh sorry

Basically whatever the light is touching is visible and whatever the shadows touching is invisible

(using a cube for now so i dont have to press play)

[lunar sleet]

Not sure how you’d go about that tho. It’s one thing if you’re turning off visibility on each component, or each material index at least, but any single part of a mesh that’s in the shadows turning invisible seems very complex.

[clear marlin]

Well how the heck didi the dude do it then for this

[maiden wadi]

Post process with custom stencil.

@digital palm For better context. This. Except that the rest of the material is black except that stencil value.
https://www.youtube.com/watch?v=PiQ_JLJKi0M

[jagged moss]

is there a way to get the speed of a projectile on either hit or overlap?

[maiden wadi]

It's velocity shouldn't change when those events fire if I recall correctly. So if you don't do latent stuff it should be gettable?

[jagged moss]

the speed of the object will change, but i need to know the speed at overlap event(or hit event)

[digital palm]

oh yea, thanks for that

[jagged moss]

but how do I get it, i cant find any number that is correct.

[dark drum]

You can get the length of the velocity vector.

[jagged moss]

that returns a number around 4K, so im guessing im getting a base value instead of the actual value? how do I get the actual value then?

[rugged wigeon]

what do you mean "base value" vs "actual value"

[jagged moss]

this returns about 4000 no matter the actual speed. If i see the projectile move at 1km/h its 4000. if it travels at mach speed, its still 4000

Same with this

[rugged wigeon]

well what is causing it to move if not the projectile movement velocity

[jagged moss]

it has an impulse when it spawns in. and this impulse changes. and colitions will also change the speed. i need to know the speed on a specific hit

it should also be able to loose speed on the way over to that hit, and its not the launch speed i need, its the actual speed upon the hit

[dark drum]

Well this is how you get it. So when are you getting the velocity?

[jagged moss]

i want the velocity/speed of the onject when it passes through or hit a target

basicly, the faster it passes through the more dmg it should leave behind

[rugged wigeon]

right but show where youre calling "get velocity" and printing it

[willow gate]

Hey folks. I'm implementing a little object pooler for the projectiles in my game. I'm doing so by creating an Actor Component that any actor can be given which manages ammo type, spawns actors of the desired ammo type class, stores them into an array and then places them into an innocuous place in the map.

When fired, the component gets a projectile from the array at current index, increments the index (checking to make sure we haven't gone past the last index of the array) then moves the projectile to the appropriate location and activates it. This is all working fine. The problem I am having is that when the projectile hits, it seems to activate the "Projectile Hit Events" function on ALL of the projectiles in the array. lol. Any idea why that would be happening?

[jagged moss]

I placed it in here, as im trying to get the speed of the object as it hits

[rugged wigeon]

why would you pre-spawn ammo and move it around the map rather than just spawning it as needed

[jagged moss]

it is on the projectile itself

i could also change it to calculating it on the pawn instead of the projectile, not sure which is best

but i stil dont understand how to get the speed

[willow gate]

Are you asking me why object pooling is a good idea?

[rugged wigeon]

yes

[dark drum]

That is how you've set it up is correct. That is the speed.

[willow gate]

To avoid any lag/performance issue during a "bullet storm" where lots of projectiles are being spawned at once. Object pooling is an efficient way to pre-load assets and then reuse them.

[jagged moss]

but its always 4000, which is not the actual speed

[dark drum]

What makes you think it's not the actual speed?

[jagged moss]

couse if i roll the projectile at 1km/h its 4000. if it travels at mach speed its also 4000

if its flying almost faster than i can spot it its 4000, if its barely rolling on the ground its also 4000

[dark drum]

Well 4000 is 40m which is most likely it's terminal velocity.

[jagged moss]

i dont want the terminal velocity, i want the actual velocity

[rugged wigeon]

don't do this until its actually a problem

[rugged wigeon]

show a video

[willow gate]

ok. May I ask why not? Problems like this one perhaps? 😉

[rugged wigeon]

prematurely optimizing for performance is just not a good use of your time. You want your design to be quick to develop and have the simplest design possible.

plus if you really need performance you'll probably scrap it all and rewrite in c++ as needed for final issues.

[willow gate]

Object pooling took me like 10 min to impliment. I'm just running into this snag for some odd reason. But I see your point.

[jagged moss]

dont have a good recording software as far as i know, but I noticed that if i just drop the object I get 4000. and when I shoot it as fast as it can be shot with the current programming. it becomes lower, lowest i got is 3850-ish.
Does this mean that the faster it goes the lower the number?

[rugged wigeon]

windows key g

[jagged moss]

tried, but the recording button is grayed out. ill try to take 2 pictures, one with a flying projectile and one on the ground

the projectile went to fast to take an actual photo in the last shot, but its way into the distance

the speed in which it fell to the ground was slower than it shooting over the horizon, yet the number is close to 4K

[rugged wigeon]

show the code for where you set the initial velocity

[jagged moss]

it spawns with an impulse, that depends a lot of other stuff that happens on the player character, but this should not matter for the actual speed on impact?

i have learned better ways to do this since, but this is how i solved it a while ago. i know it can be done better. but all i needed was to spawn a projectile and controll its starting speed

[crisp garnet]

I could use some help, I am trying to create a AI random roam using the method I have in the photo, I have this method called on Begin play in my NPC. The Method goes into the success but they do not move, I do have a navmesh generating dynamically at runtime and my NPCs do move If they are enemies.

[faint pasture]

So are you using physics or projectile movement component?

[rugged wigeon]

so it works for enemies but not for players? are you sure the player one is possessed by an ai controller?

[faint pasture]

Sounds like you're mixing them

[jagged moss]

this is whats on my projectile atm, should I add a physics component instead?

[faint pasture]

Choose one

Is Sphere simulating physics?

[jagged moss]

yes

[faint pasture]

I'm pretty sure you have the rest of the actor flying at 4000, and the sphere off on its own flying at whatever speed it gets through physics

your projectile is split in half

[jagged moss]

i see, i turned off physics, gonna give it a test

[rugged wigeon]

you need to use the projectile movement component to cause the motion

[faint pasture]

This projectile is a mess, you will end up needing to choose whether you want to use ProjectileMovementComponent or physics to move the thing around.

[jagged moss]

i guess physics would be the way to go

[rugged wigeon]

probably not

[faint pasture]

idk, what do you need?

physics probably isn't unless you need really chaotic physics driven stuff

[jagged moss]

im just outside my knowledge atm, so im a bit confused what to choose. i removed the projectile movement component and everything works. but if i keep it and uncheck physics i get errors. and im allready launching it without using its movement component, so does that not make it closer to using physics?

[crisp garnet]

The Enemies and NPC's are all children of the same Parent NPC Blueprint. I am using the Flexible combat system if that makes a difference

[faint pasture]

Start by reading up on kinematic vs physics movement and choose what you want

You probably want kinematic, meaning the ProjectileMovementComponent or your own system.

[jagged moss]

but if i just want the speed of the projectile atm, how will i get it, i removed the movement component but now instead of 4K i get 1,0

i just want this small function to work so i can move on to the next part of the game. i will remake the whole game a few more times before its done anyway, so i can figure out this later. i just need the speed atm so i can move on

[faint pasture]

ok make a choice, projectile movement component or physics?

flip a coin

[jagged moss]

which would be less to change from what i have?

[faint pasture]

doesn't matter

super simple either way

[jagged moss]

okei, then since you said to avoid physics then lets do the other then

or not avoid, but you recomended the other as i understood

as long as the numbers that is being sent from my player character still changes the starting velocity

[faint pasture]

https://www.youtube.com/watch?v=Wagn7bGjAGQ

This doesn't look too bad

use your sphere instead of the box as root

[jagged moss]

this does not work as i want i think. it looks like you set a default speed for the bullet, instead of taking in the allready exisiting variables from the character. maybe physics is what i need instead then? i allready have a bullet and everything determening its starting speed. i just need to know the speed of the projectile in the moment it overlaps with the enemy

[dark drum]

You need to set the thing that has physics as the root of the actor. This would most likely be the sphere mesh with the collision attached to it. Having the default scene root for physics based actors causes issues.

[jagged moss]

like this?

[dark drum]

yea.

[jagged moss]

it seem to be working ^^ it does not register if the projectile is too slow it seems, but that should not matter anyway

thank you for the help ^^

[fluid silo]

i don't know if that's the right place but i have questions regarding the Game Animation Sample project made by UE, it's related to edges and how to transfer the blueprints & logic to something else than a cube (lets say a 3d model on a barrier i got)

[round elk]

hey

real quick

why is it worldgrid material

even when I hit play

its supposed to be bric

?

[vital dome]

I'm working on chunk loading in my project, I want the function that calculates the active chunks to be called on loop every few fractions of a second when the player is moving and to be called almost immediately after they stopped moving once.

I thought this hackjob with Do Once nodes could do the trick but it only calculates active chunks when the player has stopped moving.

Any tips on a more effective/working solution please?

[quaint fable]

Hey all! I've been trying to get an interaction system working through line trace and a blueprint interface. It doesn't work when I press 'E' to interact. When I connect print string after the line trace, it tells me I'm interacting with the object. With this door blueprint I have it set up with a timeline, which works fine when I have the timeline set to autoplay, or if I have the interaction system set to interact with overlap.

Hopefully that made sense

[lunar sleet]

Is the Interact node firing in BP_DoorBedroom?

[quaint fable]

No actually

[lunar sleet]

There yo go

[eternal totem]

then hit actor /= BP_DoorBedroom

[quaint fable]

So in the future, if I'm running into problems, I should do a print string down the line yeah?

Thank you! Let me see what that does

[eternal totem]

when you drag hit actor into your print string, what is the display name?

and yes

[lunar sleet]

Or breakpoints

[untold ivy]

How can I transfer data from the menu to my level?

[lunar sleet]

But also could be the interface is not implemented

[pallid nest]

hey guys , I have a question regarding casting. I have a parent bp which I use for pooling in a couple of actors. I am trying to cast in this one (parent) so I avoid having a multiple cast in each of the child. The inheritance is fine as I can see the variables and access it in the child but it won't work. When I debug it doesn't say my casting is invalid, any ideas please?

[eternal totem]

pretty sure through variables in the gamestate, it is persistant between levels (or is it gamemode?)

[quaint fable]

BP_InteractionAreaMaster1060 is what it says when I drag hit actor into the print string @eternal totem . /= is NOT equal right?

@lunar sleet yeah the interface is implemented

[eternal totem]

/= mean not equal correct. And yeah thats your problem you're not hitting the door

[dawn gazelle]

Through the GameInstance, Subsystem (requires some C++ to make), objects that have the GameInstance as their outer, or through a save game object.

[lunar sleet]

I mean if you’re doing that you might as well scrap the interface and cast

Much simpler anyways

[eternal totem]

@quaint fable you can start by checking the collision channel of your door static mesh's. You want visibility and camera set to overlap

[narrow sentinel]

Anyone able to help here as I'm really confused

[dawn gazelle]

Save yourself some headache and avoid using SetTimerByFunctionName. You can use SetTimerByEvent and plug in a "Create Event" node into the delegate pin allowing you to use them in functions.
DoOnce nodes won't function within functions as each call to a function is its own instance, so it doesn't keep its state through each call to the function. If you want to use DoOnce nodes, then you have to use an event, not a function for this logic.

[quaint fable]

I would do Casts but I have several things I want to interact with and I want to save on CPU.

[narrow sentinel]

So I have in here mutliple interaction components and I have adding their interaction events to my graph for each one. For some reason when I go through the interaction on one of them it seems something odd happens that they all fire

[lunar sleet]

Then you need to figure out why your interface msg is not going through

[narrow sentinel]

I've debugged and can only see the one line firing the middle one

[quaint fable]

The door mesh was set to blocked for everything so I set the visibility and camera to overlap. It still does nothing though

[quaint fable]

Yeah, it was working when I had it set up for interact when overlapping

[worldly skiff]

What is the best practice to reset Animation Blueprient state?
My current problem is that I want to go from Death state to Stand state upon Character Resurrection. The straightforward doesn't seem to be optimal.

[quaint fable]

I'll try and figure out why the interact message isn't going through. If I really can't figure it out after scouring the internet I'll come back here. Thank you all!

[eternal totem]

Has anyone used the "Restart Player at Player Start" node? I have a situation where my player moves onto the next level, but if they come back to the previous level I want them to spawn at the second player start that's at the end of the level. When using the node all it does is reset the camera rotation to the horizon. I can get teleport to work and just use that but it's not respecting the rotation of the player start, only the location.

[dawn gazelle]

If you're overiding Begin Play in the children, you need to right click on the Begin Play event and there should be an option "Make call to parent function" or something along those lines and then connect it up.

[pallid nest]

thank you

[storm shale]

There's def stuff for which interfaces are great but generally speaking Id recommend using hard references for stuff like that, it doesn't have a negative effect in performance
Only reason id use an interface is if I don't want the referenced class to be loaded with that blueprint always. Other than stuff like that there's little to no gain on overcomplicating stuff with them.

[frosty heron]

Game instance not game staye

[steady night]

hey im tryign to rotate a projectile towards a target location by changing velocity but im unsure how ?

[quaint fable]

Oh okay. There's a lot of conflicting information out there on what's best practice and I'm still a newbie

[frosty heron]

If you are using projectile component, just change the direction

Since it will shoot straight

[steady night]

like the rotating ?

just use the look at ?

[frosty heron]

You can probably use look at

[broken wadi]

Two cubes stacked on top of eachother with the exact same location?

[steady night]

how else +

[frosty heron]

It's projectile/spawn location - target location

Then you have to make rotation from one of the axis then apply quaternions I don't remember

No editor atm

[steady night]

hmm

[round elk]

yeah

[glass blade]

Why can't i look up and down properly but can look left and right while an animation is playing?

[storm shale]

With a trenchcoat*

[glass blade]

this video doesnt showcase it properly but essentially it kinda glitches out when trying to look up and down during the reload

but it works fine if i look left&right

here's a better one

[tropic peak]

I don't think anyone will tell you why without seeing the code

[faint pasture]

because left and right rotate the whole skeleton, while up and down is a blend space I'm guessing

[round elk]

anyone know how one might fill that triangle

[broken wadi]

You can use the new ue5 modeling tools. Check out #geometry-tools and the pinned messages for some videos to get familiar with how to use it.

[gentle swan]

Hello, new to this discord, so sorry if this is too much of an ask. I'm trying to make a flying game. I have found an issue with my Angle of Attack function (in terms of pitch, and not yaw), so I have isolated it down for simplicity, and turned off gravity. As shown, I have a print statement linked to the relative z velocity of my mesh. The x and y velocities are fine, but as seen in the video, when I add a torque to spin the airplane, it for some reason results in some z velocity. I have also done debugging, and set up a print statement to directly see the planes position, and it certainly is not moving in the z direction. What is going on, and can anybody help me out?

[gentle swan]

*Update, I tried doing the same functions with a flying cube, and it seems to work fine. So, is this a problem with my airplane mesh?

*Update 2, I tried to add the lift force one the cube, but it is still extremely buggy. It may not be an issue with the airplane mesh.

[mellow coyote]

Hello, I'm pretty new to unreal engine and the way blueprints work. I am trying to create a counter that is displayed onscreen that goes up every time an ore is mined. In the event graph for my ore I have an integer variable that goes up every time I mine ore called "Ruby Count". What I'm trying to do here is show onscreen "Ruby Count: x/3". I'm guessing my issue is with casting because I am unfamiliar with how it works. I've tried looking at many tutorials but still cant figure out what should go in the "object" pin.

[marsh sonnet]

This probably will get filed into "simple solution I'm missing, as a newb" but--I have animations for if character gets hit by enemy--one for if they're on the ground, and one for if they're jumping. But the jumping state doesn't last long enough for it to ever register that jumping-hit animation. What's the easiest way to draw out that jumping bool state longer?

[hoary prairie]

Hey everyone, I' ve encountered a problem I really can't wrap my head around, basically I'm spawning an actor (which works as a timer) and playing with its lifespan in order to get the actual time left after a certain event.
I'm also passing this actor to a widget working as HUD for some design stuff and everything works fine in editor and standalone mode but whenever I package the game it won't work, specifically it will create the actor once but without passing its reference to the widget.
Pasting some screenshots below

[glass blade]

how should i approach solving this?

[hoary prairie]

I've tried creating an interface and using its function to set the actor reference everytime one is spawned and it still won't be passed.

well I guess I'm just dumb, got it fixed by creating and setting a variable when spawning the actor and getting it in the widget via the ref to the pawn i already had

still don't know why it wouldn't have worked the first way tho

[frosty heron]

The object is the instance of the class. So in your case you need to set ruby outcrop to point to an instance that exist in the world.

Right now you are casting a ruby outcorp(actor) but which actor in the world? You never make it point to the actual ore in the world so you will just get accesses none error here unless you did set it.

[clear marlin]

Can someone help me make a LOS esque thing but for my lights, so they are the ones that cast rays and when the player is outside of the LOS of any light they go invisible

Would really appreciate it

[frosty heron]

Learn box or plane modelling in a 3d modelling software

[mellow coyote]

Thank you for the reply, I think I understand what you are saying. Is there a particular node I would use to select this instance from the world? Similar to how you would use Get Player Character in other situations?

[lofty rapids]

you can check is falling on tick

[mellow coyote]

looks like I actually was able to get the intended result without a cast after all, using Get Actor of Class

[frosty heron]

This not gonna work

You are just getting a random one from the world

What if you want to get the ore that you gather?

Suddenly get actor of class make no sense and your code breaks

My suggestion is to watch blueprint communication video.

[mellow coyote]

alright, I'll take a look at some

[frosty heron]

One tip here is that one way is to pass the object (the ores in the world) upon creating the widget

[maiden wadi]

Not an answer to your question, but a note on your casting misunderstanding. This post might help you. Casting is simply an access level change attempt with a check to see if that attempt worked. Your issue with casting here was likely the misunderstanding of instances and pointers. Pointers(the sky blue variable types) hold instances of an object. They can also be null unless they're set to point to a specific instance. And if they're empty pointers or you're trying to cast something to the wrong thing, it'll return cast failed. You have to have a pointer set with a valid instance of something that is within the cast's hierarchy tree to get a successful cast.
#blueprint message

[mellow coyote]

thanks, I will check it out!

[round elk]

Alr thanks you

[mellow coyote]

so this would happen in the blueprint I use Create UI Widget in right? And sorry, but what do you mean by "pass"?

[frosty heron]

Blueprint coms got it covered

Essential basic skill to have

[mellow coyote]

alright, thanks!

[dreamy sail]

Hello everyone. I've been struggling since yesterday to find a solution to this, without any success. ChatGPT is driving me crazy constantly lying and complicating things for me. I know this should be simple, but I'm too big of a noob...

I am trying to accomplish something simple, I replied to my old message just for more context, but you can completely ignore that.

I have a game with 20 levels, and level 21 is supposed to be the level where, after you win, you can select and play any other level you want. This means that , after you fiinish the game, you should be able to select any level that you want to play again, in case you want to get a better score.

The logic I want to create is really simple. After player reached level 21 ( finished the game ), the menu button should switch from opening the regular MainMenu ( before player finished the game ) to opening level 21 .

Is there a really simple way of doing that ? I feel like I'm missing something really obvious because of how big of a noob I am

I don't need to use my previous logic at all, if there is a better way of doing this, I just want to make sure that there is a way I can either set a boolean to "game finished" that will stay like that regardless of what level I'm in, and based on that, my button will change from opening MainMenu to opening level 21 ( L21)

🙏

also, this is my level progression logic, so I dont have an array with the level names. it just adds +1 to the L name of the level, if that makes sense.

my main issue is that when I reach level 21 and I try to cast to my BP character in order to set gamefinished to true, it doesn't cast. I tried casting and also tried with get all actors of class + for each loop, but without success.

maybe I don;t need any of this, but again, I'm not good at UE at all, I'm really a noob

[glass blade]

do tutorials exist for this particular topic? It'd be infinitely better to see how someone does it

[dreamy sail]

i tried using an overlap event in order to make gamefinished true, I also tried event beginplay, nothing worked...

[dreamy sail]

I looked up everythign on youtube, but without success

[glass blade]

are you trying to create a simple counter where it adds +1 ?

[dreamy sail]

but , zooming out , if someone understands the big picture, I would really appreciate some general advice, or something... my main issue is that collisions in level 21 can't cast to BP character for some reason, and also in level blueprint , the event beginplay doesn't allow me to do that either

[dreamy sail]

the counter works, the one you see in the screenshot

[glass blade]

then if it reaches more than 20 it restarts your game ?

[dreamy sail]

no, it goes to level 21, but the button to open the level , keeps opening MainMenu regardless.

so basically, the boolean that sets gamefinished to true, doesn't work for some reason

[glass blade]

show boolean and related stuff

[dreamy sail]

this is the button Im reffering to

and the boolean is this :

[glass blade]

for loop doesnt need that for body output connected?

[dreamy sail]

or this( trying a different way ) :

I also tried it like this

[dreamy sail]

I tried it like that too, but it didn't work

[glass blade]

i dont udnerstand what your for each loop is doing there

[dreamy sail]

yeah me neither, thats just what chatgpt told me

you can ignore all the crap I tried, I don't really know what Im doing tbh

but Im trying to achieve this: a good way to set that boolean in my character bp to true when I reach level 21

gamefinished boolean is in character bp, and needs to be set true from another BP in level 21

I hope it's clear enough, idk if I explain it properly

[glass blade]

integer -> if greater than 20 = set boolean true

i mean 21

[dreamy sail]

ok, and then, after this, is there a way to make sure that it stays true? regardless of what level I'm in?

Because: level 21 allows the player to select any other level in the game, so lets say Im in 21 and then I play level 3, but then I want to press my button to go back in level 21 and select a different level, if that makes sense

[dreamy sail]

this will only be set to true if Im in level 21?

I hope Im not too stupid explaining this lol

[glass blade]

no idea honestly

try it

see what happens

[sharp totem]

If I have this base item master class and I want all items to be pickable from the ground but with a different mesh like in the souls games, would this mesh go into the base item along with the logic for picking up items? And would the equipped item mesh (and logic) be added on top for the equippable items making one or the other visible depending on the situation? or do i need an extra class or smth

[weak vale]

Is it possible to have a blueprint component intercept "destroy actor" node in the blueprint that the component is attached to?
I want to add special behavior to actors by using a component that will for example replace them with another actor when they are destroyed.

[versed sun]

@weak vale there is an On Destroyed Event

[faint pasture]

Where can I yoink a good looking demo landscape material that comes with the engine or its template projects?

[crude tartan]

Lookup unreal sensei. He provides a really nice free landscape material.

[crude tartan]

Things that all items would use I would put in your base class. So if every item has a static mesh then yes have your mesh component in your base class and then you just change what the static mesh is on each child class. For item specific code I would put that in your child class if it’s not shared by other child items.

[fiery sierra]

Rammed my head into a wall for 2 hours to figure out how to make my interaction system work with independently functional actors.... finally got it

[lunar sleet]

I didn’t realize concussions lead to epiphanies, good to know

[crude tartan]

I would think the best way to do that is to check if the actor has the component before destroying. If it doesn’t then destroy the actor. If it does then call a function on the component instead.

[sharp totem]

yeah so every child looks like the base item mesh that has the "pickable" glowing mesh on it and pickable logic, and then for weapons and armor i add the specific weapon/armor logic on their class, is it possible to add various meshes and make them visible/invisible so after picking (and equiping) it has the mesh of the weapon and after dropping the weapon it has the pickable mesh?

[fiery sierra]

They do wonderful things, remember the kid who went to sleep in a concussion and woke up speaking spanish?

[lunar sleet]

No, I do not know this hombre

[fiery sierra]

nvm it was a coma

tomato tamatoe

[faint pasture]

I was just seeing if there was a redistributable one around in the stock Unreal stuff. Making a plugin and wanted something nice to look at for the demo scene.

I made one out of the stock Grass and Rock mats lol

[crude tartan]

Yeah, if each item has its own pickable and equipped mesh then you could just store both meshes in the child as other items won’t share them. If all of the pickable meshes are the same but only the equipped mesh is specific then you could have the pickable mesh in the base class and just reference the equipped mesh in the child.

[sharp totem]

alr nice, with this workflow is it possible to make a single pickable item that adds various items to your inventory? or do i have to include data tables?

[frosty heron]

@sharp totem you want to use data assets or data table for inventories

[glass crypt]

Anyone know what I can't set option pins when trying to set members in this struct? It allows me to break the struct and select option pins, but not set.

[dawn gazelle]

May not be exposed to blueprints

[glass crypt]

Ohh I just realized they're set to BlueprintReadOnly instead of BlueprintReadWrite. I think that's the issue. Thanks.

[frosty heron]

That's deffinitly the issue

[stone obsidian]

does anyone know how I can increase the distance at which the light on my emissive ball renders? I have to get very close for some reason.

[frosty heron]

Might have better luck in #materials

[sharp totem]

are data assets for meshes? is it better to use data assets/data tables entirely for this case or inheritance and data tables for the inventory?

[frosty heron]

Data assets are just container for data

It can hold the address to your static mesh, skel mesh icons , desc etc

Don't use hard reference in your DT or DA. This is where you need to learn load stuff as you need.

[sharp totem]

what is a hard reference? ive read that DT should be used only for textual data like stats, description, etc.

idk about DA tho

[hollow schooner]

How can I access the occlusion volume in my level and bring it into my Blueprint as seen here in the screenshot?

I was able to get the collision enabled node, but cant figure out how to get the occlusion volume into my BP as seen in the reference screenshot...

[wispy depot]

Hi everyone, I am trying to recreate a chained together chain system between two characters and characters can't get out from each other with blueprint. What do you think about how I can create this mechanic. Do you have any ideas?
I have tried to use physics constraints between characters but it seems not working. I also tried to launch characters but it did not give us quite a good result.
I haven't try to add force to character movement component. I will try to test it too
What do you think chained together developer created its effect.

[cyan hazel]

https://www.youtube.com/watch?v=TEKJlLbIbac How does this person get the refernce from one BP and paste it into another BP in this video?

time stamp 7:56

[lunar sleet]

A regular reference. (Not soft)

[flat mauve]

Anyone?

[fiery sierra]

There are tutorials online for this iirc

[dawn gazelle]

This is a niche product that has a hefty price tag so it's very unlikely you'll find help with this here. You're likely better off contacting the dev for support.

[wispy depot]

can you share link?

[spark steppe]

hefty price tag? wasn't that plugin like $15

[dawn gazelle]

The one I'm seeing right now is $40 (CAD)

[spark steppe]

hm, okay, maybe i got it on sale

but i think it's pretty pointless since game feature plugins are a thing

at least for me, it wasn't worth to mess around with it too much -_-

[fiery sierra]

https://www.youtube.com/watch?v=TfzwyPms2ic

It's not english, but if you follow along he shows how to do it and some other cool stuff on his channel.

[young meteor]

Hey folks
I'm having issues with my click event. It works about 90% of the time, but suddenly it won't fire the event.
I'm guessing Input mode might be a cause but I'm not sure, and not sure how to find out actually.
How would you guys go about finding the issue?

[dark drum]

The only think that jumps out to me is if you're in one of the UI input modes and the UI consumes the click/press. Are you able to provide more information regarding the setup?

[young meteor]

That might be the case. Is there a way to just check if I'm in a UI input mode?

I built from a TopDown template and still have a bit of the logic to control a pawn movement with the left mouse click as well.
I have varius build/upgrade menus I open/close. Not directly on top of the Actor I'm trying to click.
I also have a resource canvas panel active at all times. (see screenshot). Item list is set to collapsed.

[dark drum]

Do you set the input mode to either UI or Game & UI at any point? It might be a good idea to make sure the relevant elements in the UI aren't hit testable as well if they should handle clicks/inputs.

[young meteor]

Think I set it to Game and UI. Would have to double check.

[dark drum]

Yea so in that case, the UI would get first dibs on the input and if it's handled, it'll get consumed meaning it wouldn't pass to the game. Check to make sure elements in the UI aren't hittestable that shouldn't be.

[young meteor]

If it is any clue, when I try to click an Actor and fail, I still move the pawn from Topdown Template.

[young meteor]

Right. Just to make sure I understand. I need to set input mode to "Game and UI" right? Since I need to be able to press buttons as well as game.

[dark drum]

From my understanding yes. Game & UI is for when you need to interact with both the UI and the world. (Game) You just have to remember that the UI will try to handle the input first and if it's handled it never gets passed to the game.

[young meteor]

Thank you.

[proud pier]

would there be a way to change the Color Grading of a PostProcessVolume at runtime? Like binding it to a function?

[young meteor]

Found out it was related to enemies passing close by the Actor I wanted to click. Thought it was their health bar at first, but it was not. Guess I was simply clicking them instead (or a particle effect with bigger meshes), so set up an actual line trace with a custom channel for it. That worked. Big thanks though. 🙏

[maiden wadi]

You can only do this in the Level Blueprint. Because everything in the level is encompassed by it. Similar to how you can get an actor's components within that actor's blueprint. Except that the level encompasses actors, so it can get the actor references within it.

[maiden wadi]

FYI You can change the Clicked trace channel for actors in the PlayerController too.

[maiden wadi]

Not specifically sure what you mean. But this sounds like Material Parameter Collection area.

[young meteor]

Just change this under Class Defaults?

[maiden wadi]

Yep. It'll change the trace used for both the Hovered and Clicked events.

[young meteor]

Smart. Thank you.

[primal hare]

What would be the best approach to limit character from turning back? Basically clamp in -30 to 30 of forward vector.

[spiral kite]

I try to export something from blender to unreal with plugins but I have a big error message now

and I cant understand it at all

can any body help me

[primal hare]

You'd have better help if you post in the correct section. Good luck.

[rugged wigeon]

make it a byproduct of how they rotate to begin with

[tropic peak]

when the game starts I want to check if my BP overlaps a volume. I noticed that when I launch the game the volume object disappears from the outliner (but is still clickable in the editor when the game is running). It obviously should detect an overlap but it's not.

[rancid monolith]

Im trying to import a shader/texture but UE crashes with this error

Error: appError called: Assertion failed: false [File:D:\build\++UE5\Sync\Engine\Source\Runtime\RHICore\Private\RHICoreShader.cpp] [Line: 60] 
Shader attempted to bind uniform buffer 'FOpaqueBasePassUniformParameters' at slot [Name: SceneTextures, Slot: 9] with hash '332399464', but the shader expected 'TranslucentBasePass' with hash '441254321'.

[proud pier]

basically I'm looking for a way to smoothly adjust the color tint of the surrounding to player position

[primal hare]

a little more detail please

[maiden wadi]

When you say smoothly, do you mean over time or like a gradient?

[proud pier]

a gradient

[young meteor]

How come I can't use my Interface event "Clicked", when I can in a different BP?
Both have the interface implemented in Class Settings.

[maiden wadi]

You could maybe post process that via making an MPC of the player's location which the player pawn or something updates on tick. Then a post process material which uses that world location to affect pixels within or out of the radius of that.

[maiden wadi]

Am not following, what can you not implement it on?

[tropic peak]

okay I guess there's no collission because the actors are overlapping when the game starts so it can't be detected unless I'd add some weird workaround.

[proud pier]

That sounds pretty good! I'll look into MPCs - I'm rather new to this

[young meteor]

I have two different Blueprints (Actors). One I could implement the red event "Clicked" in.
The other I can't (trying to show what came up when I searched for "Clicke" and it is not there)

They both have the Interface implemented.

[maiden wadi]

The TLDR is that Material Parameter Collections are just global properties(floats and vectors) which materials can reference. They're just a way for gamethread to set values easily from anywhere in the game, and rendering to read them in shaders.

[young meteor]

Sorry I'm stupid. Was in a function graph. Not the Event Graph. 🤪

[maiden wadi]

Oof. 😄 Also as a note, I'd personally recommend just making an interactable component. Once you make the component, you get a lot of easily reusable code by just dropping the component on anything that needs to be interactable. Then your code just finds the component by class on the traced actor and runs like a "StartInteraction" function. Using Interfaces for interaction tends to lead into a lot of repeated code in different classes.

[young meteor]

Smart. Once again. 😄

[lofty rapids]

what is TLDR ?

@maiden wadi

[maiden wadi]

Too long didn't read

[lofty rapids]

ok, thanks

[wicked hound]

Hello, I have been struggling to get this right and have no clue how to get it right. I an using the behaviour tree to create and ai creature to roam in an area and when the creature sees the player it will chase the player and play a sound. The sound works for the first time but when either the player dies or the creature looses sight of the player, and when get regains sight of the the player the sound doesn't play. I know its because of the DoOnce node but I struggle to figure out on how to reset the DoOnce node when player gets out of sight. And the other issue is when I the AI Creature looses sight of the player the sound still plays and i don't want that. But if I remove the DoOnce node, everytime i walk behind a tree it plays the sound. and my level is set in a forest so its going to play the sound constantly. I want to sound to play again when it regains sight.

[tropic peak]

add bool "isInSight" and set it when the player is in sight, when not in sight set false output from a branch to do once reset ?

just a guess

[primal hare]

This sort of does the trick. But character is still able to walk backwards.
Also hopefully this is a good use of dreaded Event Tick?
Put this in Level BP because it is just a small level.

[wicked hound]

Let me try it real quick

[maiden wadi]

I wouldn't worry about tick. Honestly. It's one of those things where if you need it, you need it. And you won't understand the complexities of optimization and requiring it until you hit that wall. Make your stuff to the best of your ability. If it works, great. If it doesn't, then learn from it and refactor.

[wicked hound]

I don't think it did it right, but there is no sound know coming through when the creature see the player.

[dark drum]

I assume this is a task. If you only want it to fire the first time, just use the on Receive Activation AI event instead of the receive execute event.

[lofty rapids]

finding out when you loose sight of something is a pain in the ass i think

i did it awhile back, had to do a workaround

[dark drum]

You loose sight when they get to the targets last seen location and can no longer see them. 🙂

[wicked hound]

I don't have a Receive Activation AI. maybe im doing something wrong

[dark drum]

What is this code inside?

[wicked hound]

Its in a BTTask_BlueprintBase

for behavior tree

[dark drum]

Ah ok, receive execute is the correct one then. What you need to do is in the BT itself, select the task in the tree and tick 'Ignore Restart Self'.

That way the receive execute shouldn't trigger if it's already running and you can just call the sound.

Having said that, is all the task doing is playing the sound? I feel like the sound should be played from where ever you set the target. (what it has sight of)

[wicked hound]

Have just tried this, it didnt seem to work.

[wicked hound]

yes thats all what the task is doing.

[dark drum]

Show the BT tree.

[wicked hound]

where is the BT tree and the Task is in the zoomed in Image.

[rugged wigeon]

something is causing your player to rotate. presumably it is player input. rather than fixing the rotation every frame on tick, just make it so that the player inputs only turn the unit when they're within the desired bounds. You also mentioned walking backwards being a problem. That is something else you should be changing in the player inputs.

[dark drum]

Yea I would play the sound when ever you set the 'IsAfterPlayer' and remove the chase music task.

[primal hare]

I was trying to fix it in player input but then isn't player input additive rotation?

you rotate 30 and then in next press button you roatate another 30

[wicked hound]

So how would which part would I put the sound. Would I put it with the BTTask_ChasePlayer or somewhere else. I don't quiet know where exactly to put it

[rugged wigeon]

yes but you can modify it yourself so that it doesn't add anything when rotation is at the bounds.

[primal hare]

hmmm I'll keep it in mind, for now on this small map this works.

[rugged wigeon]

thats fine

[primal hare]

But yes backwards movement is still an issue

I guess that can only be fixed in inputs

[rugged wigeon]

yeah just clamp the forward input at 0->1

or remove the input binding for moving backwards entirely

[primal hare]

thank you

[steady night]

hey im doing a "shield system" wher i need to remove damage fdrom the "shield" and if any damage overlapps when lower then 0 then do damage

anyone got a sweet formula for this

[proud pier]

gotcha, works wonderfully as well - thank you!

[dark drum]

Well where do you set 'IsAfterPlayer'?

[rugged wigeon]

shield damage = min(damage, shield_amount)
shield_amount = shield_amount - shield_damage
health_damage = damage-shield_damage
health = health - health_damage

[steady night]

hm

can i get that in BP form x)?=

[limber parcel]

https://tenor.com/view/boring-unimpressed-meh-really-seriously-gif-16279809

[wicked hound]

So the blue square is where the AI chases the player and the Green is when the ai "kills the player" and the red is checking the players last location when the player is not seen and goes back to roaming

[dark drum]

Where do you set the value used in the BB for this?

[rugged wigeon]

= means set.

• means subtract.

min means minimum.

[wicked hound]

Are you talking about there ?

[steady night]

@rugged wigeonwell thats not what im after exactly but ok nevermind ill try solve it on my own

[dark drum]

Yes

[wicked hound]

Ohhh Okay, those are the values for the selector you circled

[dark drum]

That still doesn't tell me where you physically set the BB value 'IsAfterPlayer'.

[wicked hound]

I'm sorry a bit confused this is my first time using a Behaviour tree, are you asking where i set the value in the BTTask for the sound?

[dark drum]

No I'm asking where you set the 'IsAfterPlayer' variable in the blackboard that is used to control the flow of the BT.

[wicked hound]

This is my blackboard.

[dark drum]

Again, you're still not showing where you set the 'IsAfterPlayer' variable. 🤷‍♂️

[graceful sage]

Can anyone help me? I want to search my inventory for any of the recipe array items then remove the amount of that item from my inventory. I think what I have is close but not sure. I also want to return some bool to determine if I found these items and removed. But since I'm not using a break as I want to find all these items I believe I'm not sure how I'd return a bool for this.

[graceful sage]

may have figured something ig

[hollow pecan]

@dark drum I have a challenge problem for you lol. I'm trying to make a moving vehicle + buildings under water where when the player are inside they act as a normal fps then when in the water they are swimming and have the visual effect of being under water.

I'm assuming to achieve this you would use physics volume and post processing. Is it possible to have a post processing volume inside another (Which would be infinite Extent) and override it? I know there is a priority system but it seems to still use both volumes.

I have tried to find an answer there doesn't see to be much on this and I can't figure it out

[maiden wadi]

AFAIK the priority should work fine. EG your world having an infinite extent and then each building having an override.

Then you fake it from inside of the building when removing the water post process. EG put a tint on the windows or wrap the building in a one sided plane which makes everything blue when looking out a window.

[tropic token]

guys, why on begin cursor over (on static mesh) can actually trigger only when mesh is clicked? nothing happens when I just hover it with cursor

[hollow pecan]

Cheers, I'll keep messing with it, Thinking about how I want this to work, There is going to be several things that need to happen to make it seamless

[willow gate]

Hey my dudes. I have a strange question for you. I'm working on a 3D top-down ARPJ experiment and I want to project a shadow straight down (to help the player track landing and also for falling objects/enemies to allow the player to anticipate where they will be landing). This seems like a fairly simple thing to do in 2D because the game world is flat. I could just project a circle texture onto the ground using a line trace but that looks wonky when it encounters terrain that isn't flat or when it intersects with an object in the game. Anyone have any ideas for how I might do this a different way?

[graceful sage]

make it a decal?

[willow gate]

duh. I'm a moron. Thanks

[tight pollen]

hi, WidgetInteraction Component can be replicated?

[tropic peak]

how would you approach crafting, where you add materials to a box, and based on what's inside an item is made? you can put 5 different materials in, and based on what's in the box you determine what's going to be made

[willow gate]

Now the question is, how to get a decal to ignore the player and just project under him

[graceful sage]

is the trace ignoring the mesh?

[willow gate]

You'll want to create a solid inventory system first, preferably in an actor component so you can put it on your character or chests or crafting tables without having to recode. Then one way you could set this up is by creating a structure for recipes. Then you can have your crafting table check the materials inside of it's inventory against any recipe structures that your player has unlocked in order to display what you can make. Then you'd have the inventory component consume the crafting ingredients when you choose to craft something.

[willow gate]

Right now it's just a decal component in the player which I was going to just move around when in the air based on a line trace

[sterile quest]

Is Attach Component to Component bugged in the current build of UE5?

This doesn't seem to attach the two components together.

[tropic peak]

I already have the system in place, it's not the usual crafting like in survival games. I'm just thinking of a way of naming the thing I made based on materials used to make it

[graceful sage]

maybe try spawning an actor that has the decal from hit location of line trace

[willow gate]

Roger. I'll try that

[sterile quest]

This also causes a duplicate meshes to spawn when I set relative rotation.

[tropic peak]

compare array with multiple ones each representing the item made?

[willow gate]

hmmm.. ok so your crafting system is already working fine, you're just talking about making dynamic names for the items? Or are you talking about creating procedural items as well?

[tropic peak]

okay, I'll be more descriptive. I'm making pizzas, and I want to determine a name of a made pizza based on what toppings are on it

[willow gate]

I see. So the ingredients don't need to change any properties of the created pizza. Cool. Well, can you explain how your crafting system works in a nutshell? You put actors inside of a box and then it makes a pizza?

[tropic peak]

You add toppings from the list of available toppings, they are added to an array, you press a button and a new object/item is created that player can pick up.

[willow gate]

Right. An array of what though? Names? Strings?

[tropic peak]

data assets

[willow gate]

Perfect. So... these data assets I'm assuming have a string or name in there that names the ingredients?

[tropic peak]

yeah. name, static mesh, icon, description

[willow gate]

ok then I think that should be simple. You should be able to just get the names of all of the ingredient data assets and append them into a string which you can set as the name variable for your new item. You could even set some conditions if you add a "type" field to your data assets (ie, meat, veg, cheese etc) and then based on if you have certain quantities or combinations you could have keywords added. For example, you could check the types of data assets and if there are 3 or more kinds of meat, it could become a meat lover's. If you have at least 3 veg, it could be a supreme. If you have both then it could be a meatlovers supreme etc etc

[sterile quest]

Hoping for some help with this still: #blueprint message

[tropic peak]

I had something a little different in mind, like when you add cheese, and pepperoni you get a pepperoni pizza

I want to keep it rather simple

[lofty rapids]

you could have arrays of recipes and just check that you have the ingredients

you would need to cycle through all recipes depends on how many you have

[stiff flame]

Hey all.

Trying to get a text popup when the camera is over an item. I currently have a Get All Widgets of Class and a custom event to show the popup. That part is working. But I want to know how I can implement a node with a string variable that will replace the widget text with a string variable from the actor blueprint?

[tropic peak]

yeah that's what I was thinking of doing

[lofty rapids]

you can set text of a widget np with a ref to the widget

[lofty rapids]

" Get All Widgets of Class and a custom event to show the popup." wdym ?

[stiff flame]

I have an event in my widget for showing and hiding the text box. I just want to replace the text box with a variable so i can have it show the variable for different items

[lofty rapids]

you can use a variable on the widget and bind it, or just set text from the reference

[stiff flame]

Okay, so I can call that specific variable from my actor? Would that be done in my widget bp or my actor bp?

Excuse my ignorance

[lofty rapids]

so idk exactly what you mean by "call the variable", but you can set the text of an item pretty easy

if you want that linked to a variable just create a variable and when you set text, use the variable

[stiff flame]

I mean I want the UI widget to reference the unique "name" strings I have for each item so that when I move to another item it loads the proper BP's string variable, if that makes sense.

[untold ivy]

A couple of questions:

How impactful is the "Event Tick" by itself? As in, I have a gate that closes right after the event so it's not doing anything most of the time, but is having even that check impactful? It's a function that will run for most of the NPCs in the game.

Second, How can I measure the impact of something? For example, the Event tick.

[lofty rapids]

so when you overlap with the item, display the unique string ? i think that would be putting the variable on the bp you want to interact with, and before you show the widget, set it's text to the variable

[stiff flame]

Would that be after the Get All Widgets? How do I access the variables. It just has an array of Found Widgets

Thanks again

[lofty rapids]

as far as the widget ref, you should have a ref to the widget anyways

i usually put them in the HUD

but make the textbox instance editable

on the widget, and then get the widget, get the textbox, set its text

but before you set its text, get the variable from the item

you'll probably have to cast to it

is it one bp, or you have multiple of different things ?

[stiff flame]

I want it to be scalable. So I can just replace the HUD widget's text box's text with whatever is referenced in the actor objects BP.

The way I was gonna implement it before was horrible. A series of custom events for every object in the level in the HUD widget. I wasn't going to waste my time when I know I can just use a variable instead, but I was ignorant to how to implement it

[lofty rapids]

if it's ticking but the gate is closed, i wouldn't worry about it it's not doing much, not sure if it impacts anything but i would guess very little if at all

[lofty rapids]

you could have a parent class for all these things with the variable on there

this way you would cast to parent get the variable and as long as it was a child of that parent you would get the variable

[stiff flame]

Ahh that is a good idea.

I appreciate the help. I keep plugging things in lol

[lofty rapids]

trial and error, definately helps learn

[sterile quest]

Pardon the music. Forgot to pause it. Here's videos of the issues I am having. Three issues are:
-Attach Component to Component isn't working and isn't attaching components together.
-Two of the variables used (which are meshes) are having duplicates made of themselves when rotating.
-One of the components simply vanishes into thin air.
Here is my BP code: https://blueprintue.com/blueprint/7t-8r2d5/

Ignore three of the "Weld Sim bodies" being disabled. They are all enabled in editor.

[cyan hazel]

oh okay; but what is he actually doing? is there some key command that he’s doing cause it just seems like the reference is popping up in the blueprint node list without him doing anything

[maiden wadi]

He has it selected in the world outliner. Look at 7:57. He has BP_SwitchMesh selected. Then he right clicks in the BP graph and you can see that "Create a reference to..." there. You can also get the reference by dragging the object from the WorldOutliner to the level BP.

[cyan hazel]

ohhh okay cool thank you’n

!!

[vernal geyser]

Can i ask for help in this channel?

If not here, then where can i?

[maiden wadi]

@vernal geyser If it's related to blueprints.

[vernal geyser]

It is

But it doesn't have something like 'help'

So I wasn't sure

Sooo

May I ask?

Okay

It says that text.....

(I didn't see that cuz I'm on mobile rn, srry)

How do I make sonic like 360° movement in unreal Engine

[stray halo]

So i'm not sure why right now but I have it set up to update name when the player collides with the weapon but nothing is changing, it will print string just fine with the correct name but its not updating widget text.

im not sure if it has to do when its being updated, the widget actually pops up as a screen on an actor aswell dont know if that helps

Like this

[remote rapids]

hey i have a problem
i want that when my ball hit brick so the velocity of the ball be 0 and after 3 sec the ball continue his way and the brick will destory

that not working

[maiden wadi]

What do you mean by sonic like?

[vernal geyser]

Like in sonic games

The character rotates according to the floor angle

Completes loops

[maiden wadi]

Ah. It won't work in multiplayer. But in singleplayer you can to a trace on the character's tick to get the floor and set the rotation by the floor's normal.

[vernal geyser]

🐵...

...

Wat

[remote rapids]

?

[vernal geyser]

Does this tutorial show what you're talking about? https://youtu.be/YbPgJNSazec?si=N8jhtn-b9x9oqsAE

[maiden wadi]

Seems pretty close at a glance.

[vernal geyser]

But this doesn't work for angles 90° and above

Gtg now

Hope I find an answer tomorrow

[spring magnet]

Performance question: if I were to make a Master Widget that every other component in my UI system will inherit from, does it hurt performance if I put, say, a bound event (like OnInputMethodChanged) on it? This would mean essentially every UI element is listening for this change, but not every UI element will be reacting to it, only ones where I override and implement the event

[barren tangle]

hi, i have implemented a kind of auto aim for loot like that.
But some of them are not attracted to the character, when i know after print that all of them received the character in input.

Any idea what i could have miss? It's mainly happend when to loop appear on the character, that's why i add a same logic on the component end overlap but some of them are not attracted

[lofty rapids]

is update sword name firing ? i think you got the wrong settext node

[sterile quest]

Still waiting for help: #blueprint message

[willow gate]

The railcars are separate actors I'm assuming based on your code. If that's the case, I think you have to use attach to actor not attch to component because attach comp to comp is for components that exist inside of the same actor.

[frank locust]

Any idea what these blueprint functions related to Grid pathing do or how to use them?
Looks like a few different options to create grids and even set up grid navigation.
I’m currently using the ‘2D grid execution Macro’ that i seen a post about awhile back to create simple grids with instanced static meshes, but these functions seem like they could solve my pathfinding issues. I can’t find any clear documentation on any of them.

[stray halo]

no update sword isnt, what other settext is there?

[sterile quest]

The are separate actors in the scene but the same base BP

[lofty rapids]

if the event isn't firing then is the other part running ?

[willow gate]

Doesn't matter because those actors are instances of the same base class so their components don't belong to each other. You need to attach the traincar actor to the other traincar actor. Put a socket in the actor where the coupler is and use that as your attachpoint

[sterile quest]

Okay. Thank you for the suggestion. I'll give it a shot now

[stray halo]

Actually now that you say it, the update sword will fire a Print string inside the widget through a call in the weapon overlap gonna assume its the wrong text node

[jade patio]

Hello, im working on a small project as practice and to further my unreal knowledge by making a very simple minecraft clone but im having a tough time with optimising the terrain to hide/delete vertices that isn't visible cause the load time and framerate suffers

Is there even a way to do this with blueprints or it's too technical for blueprints?

Could there be any documentation for what im looking for?

[sterile quest]

This method breaks a couple things and so I don't think it works.

It breaks the constraints between the wheel trucks and the carbody. It also causes the carbody attaching to become ridged.

[stray halo]

so this is set up in the weapon on collison to set text, is that alright? but also it still didn't update sword name text

[willow gate]

hmmm. well I don't know what to tell ya man. Maybe someone smarter than me can correct me here but I'm fairly certain you can't use attach component to component between two actors.

[sterile quest]

There's no other method that I am aware of. Because as you can see, attaching actor to component breaks everything (basically) of the actor.

[lofty rapids]

so the execution is going to that but it's not working ? the text isn't changing on the widget ? i'm guessing sword name is a public variable in your widget ?

[sterile quest]

Back to waiting for someone to help I guess

[stray halo]

Acutally wont let me make Sword name Public

[willow gate]

It's hard to understand why without knowing exactly how your actors are built and function. It might be as simple as making sure that once they are attached, the attached actor is reinitialized. If you have some initialization steps for physics in your actor, then I suggest making a custom event o call them all again after attachment.

[stray halo]

I've managed to get a name but now its only one name from the weapons

[lofty rapids]

what are you trying to do here ?

i don't see why your using a for loop

[stray halo]

I thought you'd need it to get the name of each actor

[lofty rapids]

get the name from the thing when you overlap

[lofty rapids]

this will set text to last one in array every tick, and it actually runs through them all but you don't see it

when you overlap, cast to parent, get the variable, set the text, then show the widget

[lofty rapids]

is your overlap on the character or on the items ?

[stray halo]

its on the masteritem

[marble tusk]

The last two functions there are for the Procedural Mesh Component to create a grid mesh. I don't think they have anything to do with navigation

[lofty rapids]

so you should be able to cast to character, and just get the local variable from there, where are you displaying the widget ?

[stray halo]

im actually displaying a widget onto an actor that gets attached to the weapon i know its stupid now that i think about it but also this isnt making sence to me

[stray halo]

its prints the name of the correct weapos through widget but doesnt change the widget text at all

thats in the widget^

[lofty rapids]

so the print string shows the right name ?

[stray halo]

yes

[maiden wadi]

You're not telling the widget to change anything here.

[lofty rapids]

something with your sword ref

[jagged moss]

Is it possible to do something like this to make smoke come out of a pawn? nothing is happening atm, but its probably me overlooking or lacking knowledge

[stray halo]

the widget is located in the PickUPUI that i circled, the UI spawns when i overlap weapons on the world location of the weapon.

[maiden wadi]

What kind of actors are these train cars? They kind of look like something that you could attach together via a physic handle thing?

[versed sun]

Has anyone messes with making BP Input Modifiers?
Something about them make it so their variables are read only, and I cant set them... Why?

[maiden wadi]

Spawn it once on beginplay. Also Cascade is deprecated. Use Niagara stuff.

[lofty rapids]

looks like your setting the name before you even spawn the thing ?

[jagged moss]

still not seeing it tho, and I have not started to touch the niagara stuff yet, i think i have to do one step at the time before getting there

[stray halo]

Same thing the other way also

[lofty rapids]

and actor ui is a widget ?

[coarse condor]

Is there a better way to have a widget interaction with event dispatcher? I'm just trying to only call it whenever a widget is pressed, and this is the only way I've found to get the dispatcher to work; which isn't what I want since it obviously adds the shop to the screen on begin play, which I don't want.
I've tried every way I normally know event dispatchers to work but nothing is working how I thought it would.

[maiden wadi]

Make a new Niagara System. Pick Fountain as the template. Delete the Gravity Force entry on it. You should end up with a fountain that just throws stuff upwards in a cone. SpawnSystemAttached that on beginplay. You should see something vaguely resembling smoke.

Then look up a simple smoke tutorial. From the fountain template with no gravity, it should mostly be setting the spite via a subuv and picking better spawn locations and changing the force to be slower.

[maiden wadi]

Need more context to the issue. Code looks fine. Unsure what this has to do with the shop being added on beginplay.

[coarse condor]

I only want to call it with event begin play, so then later when the button is pressed it has something to reference, but the only way that it seems to call it is when I use create widget+add to viewport, which I don't want the actual shop to open on begin play. I'm so sorry if this reasoning and explanation is scuffed.

[jagged moss]

it spawned way off in the distance, do you know why? location is set to get actor location

[maiden wadi]

I think I understand. If I'm not mistaken, you just need to Createwidget, and save that widget's pointer into a property. Then do the binding. Then when you want to show the widget, get that pointer property you put it in and AddToViewport.

[maiden wadi]

Unsure. Was that with the fountain?

Try changing the LocationType to SnapToTarget.

[jagged moss]

yea, but i noticed its where my other particles spawned too, which is why i could not find them

sooo, I deattached everything and its in the correct place, i guess i just missunderstood how its suppose to work

thansk for the help, i think i can do the rest ^^

[coarse condor]

I think so? I usually just slap an event dispatcher on event begin play whenever I want to call it later for a function to communicate between blueprints; I want to do that same thing for a widget press that's in a shop.

[stray halo]

I managed to do it, (I guess the main thing i was missing was a Cast to that widget) i just decided to throw out the junk pile i made for spawning the widget on the actor to show the widget. I just added the widget to the Master weapon BP and when ever you overlap it sets the widget visibility true and the correct text finally shows up! i appreciate your time and help

[olive pasture]

hello everyone. is there a way i can easily track all presently blocking actors of a collision? i basically want begin/end overlap except for blocking instead

[craggy tusk]

Anyone use that UE plugin from github that detects hard references in your blueprints?
Does it work well?

[maiden wadi]

Lol wtf? There's a plugin for that? The Sizemap will do that for you.

[dark drum]

As authaer said, just use the size map. I can't see it doing anything different. 🤷

[maiden wadi]

It's kind of one of those problems where once you realize the linker issue and you start making architecture to use linkers correctly, you rarely need to care that much about it. GAS is a great example of this with Cues. GameplayCues allow you to tell designers to just throw all the stuff in Cues. And cues get loaded as needed. Doesn't matter if the cue is a gig of content references. Only gets loaded on the map where it's needed. And clearly it needed a gig of content. Optimizing past that won't be anything to do with linkers, but having nice and calm, collected conversations with content creators about wasting pixel data and making ridiculous sound assets.

Also gotta say, speaking of GAS. I'm building a weapon system by pulling Lyra's apart piece by piece. I absolutely love this project's designs.

[odd kiln]

Hi all ! Anyone know how can I change a Niagara System Asset at runtime in Blueprint please ?

[dark drum]

Based on the information you've provided it sounds like you need something like the below.

Upgrade Manager: manages and handles current upgrades and applying new upgrades.

The upgrade manager creates the relevant upgrade widget and passes the relevant data to it.

Main Upgrade Widget: This widget will be the main container for how it should look and create the relevant buttons for buying upgrades.

Upgrade button widget: this widget just has a simple event dispatcher that is called when clicked and just returns the upgrade it's ossiated with.

So with these, the main widget would bind the button event dispatcher and ultimately calls another event dispatcher on the main widget.

The upgrade manager would bind to the event dispatcher on the main widget and then can handle what should happen based on the data that was funnelled down from the button that was clicked.

[odd kiln]

I tried the node "Set Niagara System Asset" but it does not work, nothing is showing up

I guess it's ok sorry it was a bug

I recompiled and it's ok now

[carmine palm]

For spawning multiple objects consistently: IE I made a spawner class that takes a template and it takes a radius and random spawns inside that radius these objects at the count you set. Is there a way to make it faster? Right now its essentially from 0->count, spawnActor from class at blah blah inside radius randomly

at game startup*

so beginGameplay is what I should fsay

say*

[maiden wadi]

What do you mean by make it faster?

[carmine palm]

Right now it takes a sec.

let me uh

one sec

1170 + 14220 (not doingthe math) this is obj count spawning at once

from two spawners

This is in editor though

[maiden wadi]

In BP, a second sounds pretty reasonable at those numbers.

[carmine palm]

so that might also be the visible slowness

6 seconds

looks lik

like

[maiden wadi]

What are you spawning, specifically? Like full actors, or?

[carmine palm]

I know editor uses a little more resources

aye. It's templated objects. They are interactable objects. Example. Mushrooms randomly spawned in forest for pickup

But instead I made spawners I could drop one item in world

(debug view of them)

that you can set count, radius. and it will auto spawn whatever mesh you set it to with correct pickup class mesh set

spawner object set for mushrooms

[versed sun]

You can use a seed to spawn them randomly
Then , you spawn everything in the editor while not playing
This way , everything will be loaded before you press play, saving you the 1-2 sec loading time
If you want to re-random it , change the seed and reload map

[maiden wadi]

I'd also be inclined to use PCG for this maybe.

[carmine palm]

I didn't even consider seeds

oh unreal has PCG framework built in?

[maiden wadi]

#pcg-framework

[carmine palm]

https://historia.co.jp/archives/34360/ just found this lol

This is due sunday, but i'll definitely try that next

I'll see what spawn time is out of editor in actual build

I know editor uses more resources

[versed sun]

It doesn't HAVE to be seeded, it just helps for testing
Point is load in editor before you play

[maiden wadi]

Honestly, PCG would make this faster really easy. You can grab your spawners, and make points around them all and then just spawn the actor from the points. BP has the issue of loops already and 100k iterations is just brutal in BP. That is probably a solid quarter second minimum before any math or anything else.

[carmine palm]

I thought I spawned 16k earlier. But I wrote 160k lol

Was't terribly slow. I was just like wtf

[versed sun]

You already have the code to generate it
Instead of Begin Play , make a Custum Event that is Run in Editor

[carmine palm]

then you get this

160k mushrooms

[versed sun]

needs more badgers

and a few snakes

[carmine palm]

Raccoon lol

Redd the Raccoon

Doing a climate jam 😐

Not my thing but its "internship" credit for school

I'm also thinking instead of destroying actor, I just set them hidden for a timer on each object once they are "picked up"

random timer *

and have them "respawn" by making them visible

vs spawning new actors

[coarse condor]

I figured it out, thank you for the reply. :)

[versed sun]

whats your FPS like looking around at all those mushrooms?

[carmine palm]

high

I forget what it was

it wasnt low by any means

[sterile quest]

Not sure I understand.
They are actors.

[odd kiln]

Anyone knows if I can make a "Rope Swinging" movement without physics ?

I have a "Rope Bridge" and I want to make it swinging but I don't know where to search

[dreamy yacht]

Hi. Can somebody help me? I am struggling to create a reference to a parent actor from Widget. I have built a widget for a racing car, but so far I am using "get actor of class" -> parent actor for each function in blueprint, but it's too resource consuming. I've been trying to use different methods: event construct -> get actor of class -> SET My Parent Actor Reference, or cast to game instance -> SET My Parent Actor Reference, but none of those seem to work :/

I want to create "My Parent actor Reference" inside the widget

So I dont have to use get actor of class every time in order to obtain specific variable from my Parent actor BP

[lunar sleet]

There’s a get owner function or some such iirc

[frosty heron]

Stop using it unless you are getting a singleton (an object that only have one instance)

[dreamy yacht]

Ive Been using it so far cause i didnt know any other workaround, but I will be glad to learn how to reference an actor from widget since i feeling how hard the "get actor of class" hits my game performance

[frosty heron]

Again performance is not the concern here. Mostly you are saying hey get me an actor of this type from the world.

Now what happend when you have multiple instance? Your game break or it just get random one.

[oblique cape]

DUMB QUESTION Why is my parameter node (image 2) different from the one in the turorial Im following (image 1)

[lilac hill]

I'm trying to build a mechanic that grabs a surface, and ragdolls the character's arm, so the character can be dragged along a moving object etc. However, i can't figure out how to do the whole grabbing part. The ragdolling part is fine, but if i try to attach component to component, say the hand socket of the player, to an object in the world, it only places the object in the hand instead, doesn't matter if i weld or not, or the object is stationary. Can someone nudge me in the right direction? Or is it not possible to grab a stationary world object AND have the rest of the body/capsule move freely.

[lilac hill]

2 different types of parameters. A parameter can be several kinds of types, the yellow one is a cube i think? A vector has 3 numbers, this one has 4. The green one is often int or float, i think.

[oblique cape]

I somehow fixed it, by holding down 1 and right clicking and then converting to parameter it made a node like the one in the first image

[frosty heron]

One is a vector, the other scalar

[oblique cape]

Okay I see, makes sense 😃

Weird how the green one doesn't show up in the search tho

The tutorial I'm following used some shortcut to create the green one but didn't mention what the shortcut was 💀

So I typed in parameter and pressed enter and it creates the yellow one

[lilac hill]

You can always just create a variable on the left, and drag that one in, it's the same as promoting to variable.

But i've had the same thing as you on a tutorial.

[fiery anvil]

https://youtu.be/ZxCzSgSgcZc?si=1CYXCOpXq6OmlWC6

Can anyone help me? I was following this tutorial on health regen as i have followed through with the series but when I got to this point a bug I can’t solve showed up, for some reason anytime I get hit it INSTANTLY heals back no matter what values I input whereas in the video it slowly and smoothly comes back up depending on his settings. I’ve watched the tutorial around 4 times and I can’t find what I’ve done wrong

[frosty heron]

@oblique cape right click and type scalar value.

Drop it , right click the node and convert to param

[oblique cape]

Thanks but I already figured that out

[oblique cape]

😃

[lilac hill]

Anyone got any ideas on this? I am lost.

[sharp cloak]

⚠️ Can Someone Help me for my problem plz ? 😥

Hello guys, got a problem with relative location of an object. I am trying to set location to an actor that i just spawn and attached to another actor, and then after attached with this last one, i want to move the 1st object attached to a relative location. Everything works for X and Y, but Z ... omg i dont know why this doest want to put my item in the good location. Basically, the item attached is in the center of my 2nd item, so i just have to divide the height / 2 and i normally find the distance to move the object. And basically if i want my 1st item to be align correctly i need to divide /2 the size of my 1st object and substract this number to the movement .

I did that but on object protrudes from the ground, and another one is levitating ... what is the problem plz i don't understand, this does now 2 days that i am searching to solve it and i am a little bit bored now so i expect that someone can help me to solve it.

https://blueprintue.com/blueprint/11ibu4kl/

Thank you very much for you help

Please if you have a solution, come to talk with me in private cause i will not see if you write in this channel

[thin panther]

Don't crosspost, read the #rules

Also answers are best kept in this server, rather than dm's

[faint pasture]

how many new files do you need to make to make a new weapon?

[maiden wadi]

I dunno. ATM I have 5 if you also include the damage GE and the particle. 7 I guess with the sounds?

Why does file count matter though?

[unkempt moth]

Does anyone know why Cast to ThirdPersonCharacter isn't working in this video and could explain how to fix it?

[ember topaz]

stream

[split orbit]

hey, I am trying to create a ledge holding and climbing system in unreal engine 5. with every tutorial that I have watched they have implemented climb system also, I dont want that. İs there any tutorial that does this ? I have watched https://www.youtube.com/watch?v=wMzKJ1GsExM this one but instead of climbing he makes his character jump and mine gets stuck in a holding ledge animation. I cant show any screenshot due to how much stuff I have so if anyone can help me by guiding me to a correct video or just helping me to solve my issue would be great. you can dm me and I can screen share to show my problem also.

[unkempt moth]

I figured it out, I opened the thirdperson, compiled + saved then tried again. It worked. Seems like a bug, not sure, it was someone else's project

[dreamy sail]

Hello everyone. I have this level which should allow the player to select what level they want to play, each rock represents a specific level that can be opened. it's a geometry collection that will open the level once you shoot it. my question is, how can I make these level openening BPs visible only after the player has actually reached that level during the gameplay. ? for example : player reached level 1-> first rock is visible. player reached level 2-> second rock is visible, etc...

I got some complicated bullshit advice from ChatGPT, which included something in regards to Game Instance, but Im too big of a noob to make it happen, and chatgpt constantly lies and makes up stuff..

I just want these levels to be unlocked once the player reaches them, and otherwise they should be insvisible. So, how can I make them visible only after the player has reached them, what do I need to to in the BP of each level ?

[versed sun]

Game Instance is a great place for that info
Make a New Blueprint with a class of GameInstance

Make some variables in the Game Instance

When you load the level, run something like this to change the Bool to True

The magic of GameInstance is , There is only 1 and it is Always loaded
Everything else gets wiped and reset on level change

[dreamy sail]

In run this in each level BP starting with event begin play ?

[versed sun]

that should do it

one use of a level BP...

[dreamy sail]

ok, thanks. I was previously using an array and equal , based on chatgpt, that's what confused me and made it impossible to do it I think

[dreamy sail]

Im trying this now

[versed sun]

Now , if you want to save level progress , you will want SaveGame

for like between sessions of playing

[dreamy sail]

and then how do I approach making it visible ? which node do I need ? making it visible with the condition that Levelx complete

[versed sun]

the eyeball

[dreamy sail]

oh ok

[dreamy sail]

Am I missing something ? the first screenshot is in the level selection BP, and the second one is in the game instance. I can't get the level1complete to make it a condition for the actor to be visible

or is my whole approach wrong ? sorry again Im realy a noob in UE

[lunar sleet]

Yes

Drag from the return value

[remote meteor]

pull from here and type instead

[versed sun]

Pull off the Blue Pin in VRGameInstance

[lunar sleet]

Haha I win 🥇

[versed sun]

yah , that

[dreamy sail]

yay! thanks everyone, im testing now

damn I thought I got it, but how do I make it invisible by default ? because when I uncheck the "visible" in the geometry collection component, it doesn't work as it should :\ this is what I got in event begin play in level 1 blueprint. but it still stays invisible

[robust shuttle]

Hey peeps, oddball question here, I am not finding any resources anywhere for this information sadly. My cameras location is adjusted on tick, but moves based on some information calculated on a timeline. That being said, I am trying to apply camera shakes when the player lands. This works perfectly in its current form, but it only works if the camera is not moving. If the camera is moving, it does nothing. How can I attach the camera shake to the camera itself so movement doesn't actually matter, or is that possible?

[versed sun]

Is the camera on a SpringArm?

[robust shuttle]

It was, now it is not

[gusty dragon]

can anyone help me with a maths problem I have a storage box and when u click a button it takes all of your inventory items and stores them in the storage box the issue I am having is lets say the max stack amount is 20 and I have 10 items already in the storage box and 15 items in my inventory how do I find the remainder of the item amount until it reaches the max stack of 20

[dreamy sail]

I think I made it work by adding this . Hopefully it works when packaged as well

[versed sun]

I would add a Scene and parent the Camera to it
You move the Scene on timeline as normal , but shake it by moving the Camera Relative

[dreamy sail]

I just want the reached levels to stay visible in the ( level selection ) level. please let me know if thereis something I;m missing

[robust shuttle]

So you are saying, instead of directly moving the camera I instead move the scene. All camera movements are instead scene movements, so when the camera shake occurs it should technically still work becuase the transform isn't changing on the camera locally?

[versed sun]

yah , Moving 2 different components using 2 different timmers

[robust shuttle]

Hmm, I will play with that more in the morning. I just implemented a simple version (I never directly changed the cordinates of the camera until the end, so I just plugged in the scene component to the set world location node on tick and it did not work. May need me to play with it some more though

[valid vector]

Hello, what kind of event is this? the symbol are different

[proud epoch]

Good day everyone -
I am now stuck with a simple but hard to figure out Spline point issue.
Basically, I am procedurally adding spline points in game to use as a navigation system. Works like a charm except the Last point of the index, is not always at the end of the last tangent/spline connection.

I have tried multiple ways - "Get leaving tangent at location", line trace at last point. even a hard coded location but the last spline point is not always right at the end of the spline.

What then happens is the Actor I am using to follow the spline then just goes along the default 0,0,0 world vector when it completes the spline path.

Any help would be greatly appreciated

[proud epoch]

Is like the last spline point always adds on a bit of a tail on the spline itself and causing un-wanted behavior

[frosty heron]

What symbol, can you be specific?

It's a custom event with one input param

[valid vector]

As far as I know this is the normal symbol for custom event (Look at the icon on the left of word Control)

[valid vector]

But this stuff is different

[frosty heron]

@valid vector You might be overriding existing function or event from the base class

That symbol should be a function

[split orbit]

hey, I am trying to create a ledge holding and climbing system in unreal engine 5. with every tutorial that I have watched they have implemented climb system also, I dont want that. İs there any tutorial that does this ? I have watched https://www.youtube.com/watch?v=wMzKJ1GsExM this one but instead of climbing he makes his character jump and mine gets stuck in a holding ledge animation. I cant show any screenshot due to how much stuff I have so if anyone can help me by guiding me to a correct video or just helping me to solve my issue would be great. you can dm me and I can screen share to show my problem also.

[flat summit]

How does everyone get non repeating elements from a struct?
I could get random int in range, then delete the entry after it's been chosen, but then the range of ints to pull from will change.
Maybe I make an array, and add elements into it as they're chosen, then compare if the next chosen element is in the array already, and if so, pick a new element?
How do you do this?

[frosty heron]

Just make an array and shuffle it

[spice gazelle]

So, I'm having a hard time conceptualizing a UI aspect, because I suck at UI... I need a cross hair Widget to pop up on a targetted actor when it's currently being targetted, and I need it to stick on its location no matter the angle. How would I do that?

[flat summit]

But if I shuffle the array, couldn't it still potentially pick the same element? It's to randomly name characters and I don't want two characters with the same name

[dawn gazelle]

Make up a list of names somewhere (Data Table? Data Asset? Array within your GameState? Whatever you like)
Create two functions in your GameState: PopulateAvailableNamesArray , GetAvailableName.
Create an array named AvailableNames.

PopulateAvailableNamesArray Function:
Retrieve your predefined list of names and set it to the AvailableNames array > Shuffle AvailableNames Array

GetAvailableNameFunction:
Check if length of AvailableNames Array > 0
If TRUE: Get Index 0 of Name Array -> That's the name you're going to use > Remove Index 0 from the array. You can have your function return the selected name at this point.
If FALSE: Call the PopulateNameArray function and then do the same as the TRUE path.

When you want a name for something, call the GetAvailableName function. It will populate your list of available names automatically. You can continue to call it indefinitely and it will randomly assign names and when the list of names is used up, it'll repopulate itself ensuring each available name is used up first before starting over.

[frosty heron]

You can use add unique when populating array so it doesn't add an existing value

[flat summit]

I don't know much, but maybe a Widget of a crosshair over the object that "Adds to viewport" whenever a Boolean "IsTargeted" is set to true.
Make it so that when object becomes targeted, it toggles on B_IsTargeted.

The widget will have "Space" options, try changing between world/screen space as one of those will make it stay over the object I think.

If you need more I think you could adapt a tutorial of the "Pop up" or "Interact prompt" UI widgets for what you need 🙂

And thanks so much to Coldsummer and Datura for your replies, massive help!

[near wolf]

Hello

I'm trying to create smooth steering wheel on my car. But it doesn't work right. Right now the rotation keeps looping

[lunar sleet]

Assuming your IA has no trigger (defaults to Down), you’re basically firing your timeline on tick

[near wolf]

what can I do? I'm not really a blueprint guy

[lunar sleet]

As opposed to what? Are you a cpp guy?

[near wolf]

No, I'm more like a 3D Artist, just got to do this now

[lunar sleet]

Use the Started pin if you only want it to fire once

Try not to cross your noodles either, so you can see what’s happening more easily

[near wolf]

I want it to happen everytime the wheels turn > the steering wheel turns also. Right now it does this ,but it sharply goes to 90/-90 degrees. That's why I tried to implement a timeline to make it do it smoothly

[lunar sleet]

You can’t really do it that way tho

It’s like putting a delay on tick

You’re just asking for trouble 😀

[near wolf]

any way to do it without the timeline node?

[lunar sleet]

Have you tried looking at the vehicle template and see how it’s handled ?

[near wolf]

this is actually the vehicle template. But it doesn't have steering wheel funcionality

[lunar sleet]

Oh are you just trying to make the steering wheel rotate as the car turns?

[near wolf]

yes

[lunar sleet]

I see. Print the value of action value and check what happens when you steer left and right. Does it instantly go from 0 to -1 or 1 ?

[near wolf]

When I have it like this, the steering wheel instantly moves to 90/-90 degrees. But also doesn't return to the center

[lunar sleet]

Ok, so it’s prly 0 then 1 or -1

But the car wheels probably don’t rotate instantly so it might be best to tie it directly into those

Otherwise

You can do the timeline on started. And reverse it on Completed

[near wolf]

this kinda works with the timeline, but it rotates only +90 degrees and not -90 degress as well

do I need a 2nd timeline for -90?

[lunar sleet]

I mean I can’t think of any non-hacky way to do this at 1:30am so sure why not lol. But you’d need to use a branch to switch timelines based on the action value

[valid vector]

I would recommend to use FInterpTo instead of timeline in your case

[lunar sleet]

I was thinking lerp initially but yeah that might actually be a good use case for FInterp

[near wolf]

can you please allaborate a bit more how do I need to set it up correctly?

I guess anything like this, but I'm not sure after that

I tried playing around with the values of the finterp but nothing much changed

[proud epoch]

Does any one perhaps have more ideas around this?

[valid vector]

Something like this and tweak the "Interp speed" till you get the right feel

[near wolf]

hmm sadly this isn't working, it just instantly rotated the steering wheel to some degree and then it stops moving

[valid vector]

Make sure to connect both the "Set Relative Rotation" since you have 2

[near wolf]

it's just one

[valid vector]

What does the "Steering Input" do?

Do it need to adjust the value from 0 to 90/-90 smoothly?

[near wolf]

this is for the wheels I guess

the wheels already rotate smoothly

but not the steering wheel

[valid vector]

Steering wheel = cube?

[near wolf]

yeah yeah, sorry, didnt name it correctly 😄

[valid vector]

Then my last suggestion is to print string the float value and see if it changes smoothly, if it does
Then the problem is not in the Set Relative Rotation

[near wolf]

yes it just goes instantly

if I use fInterp it just goes to 0 degrees

if I remove finterp it goes to 90/-90 but instantly again

so far the timelin was the closest to working properly, but it only did work in one direction

[valid vector]

Yeah my bad, the value instantly change

Perhaps I misunderstood how FInterpTo work

Try this @near wolf

[near wolf]

nah, it also stops my wheels from moving now

[valid vector]

Try print string and see if it change smoothly

[near wolf]

ok wait I had it set up wrong, it kinda works now, but not yet completely

it slowly rotates to the sides, but it doesn't go back and also once I click it again, it starts from the original position at 0 degrees

[valid vector]

Yes, thats how the node tell it to do

[near wolf]

any ideas how to make it go back and not start from the original position each time?

[faint pasture]

Tick -> set TargetAngle based on AxisValue -> finterpto ActualAngle towards TargetAngle

You can get axis values whenever you want, you don't need to use the input events.

[near wolf]

I think that might get a lil too complex for me haha. I'm using the vehicle template and just tryin to add steering wheel

[frank locust]

I cant even seem to find detailed information on procedural mesh component. are you thoroughly familiar with it?

[frank locust]

just double checking if anyone else knows about how to put these different functions to use? either with the instanced static meshes im already using as tiles for '2D grid execution macro' or creating a grid using one of those methods

i can add more context if needed, including pictures or clips of what i currently have and what the goal is

[marble tusk]

Well, it's a component which lets you procedurally create mesh geometry by feeding it arrays of mesh data. Those functions return some of those arrays. I used it a bunch in UE4, but UE5 added the Dynamic Mesh Component with Geometry Script which is way more suited to what I needed

[frank locust]

if im currently using the grey macro loop at the bottom left of this picture to make a grid of instanced tile meshes, how could i use the output pins from the 'create grid mesh split' function to get similar results? I mean i think i get how to put the triangles and vertices arrays to use, but what would i do with the UV output pins?

[marble tusk]

All those arrays are basically to be used with the create mesh section function. Since it's about creating a mesh the UV array is for setting the meshes UVs

[near wolf]

Ok, I'm not sure if this is the best way to do it, but I made it work like this haha

[faint pasture]

What I suggested is way less complex than this and works better.

[loud patio]

hello! something weird happened, my character blueprint disappeared but its still there when i hit play?

[frosty heron]

@loud patio select the actor and screen shoot

also open the detail panel after selecting the character

[loud patio]

how do you screen shoot? im sorry im pretty new to ue

[frosty heron]

you already did

[loud patio]

ah-

[frosty heron]

and its not related to unreal

[loud patio]

ah sorry, i misread then xddddd

i found it in the outliner and asked it to give me its asset location, but its still not there

[limber parcel]

Shroedingers character

[loud patio]

[limber parcel]

https://tenor.com/view/cat-you-know-im-something-of-a-scientist-myself-norman-norman-osborn-goofy-gif-27354642

[arctic thicket]

What could explain that a custom multicast event input (green circle) is not set (red circle) ?

[limber parcel]

when u halt execution at that node, you wont actually see the value, go to next node and check again

[arctic thicket]

it's the same at the same node

and i get an error because of it

[limber parcel]

well then ure casting the wrong object

[proud epoch]

Just bumping this message again as I tried something new and getting closer - but still no luck
Basically, I am procedurally adding spline points in game to use as a navigation system. Works like a charm except the Last point of the index, is not always at the end of the last tangent/spline connection.
This is now the latest try, still no luck

What then happens is the Actor I am using to follow the spline then just goes along the default 0,0,0 world vector when it completes the spline path.

Any suggestions?

[limber parcel]

why are u subtracting 2 from the index?

[proud epoch]

The default value is 1 on the Int Variable. And this is the latest try. If add 1 (or 2) I dont get a spline point ending at all.
If I leave it at default (last index point of the last spline created) I get the same results - no spline point ending.
Same with -1. If I go -2, I get somewhere.
If I go -3 or more, then the tangents gets all messed up 🙂
So thats why I am going -2 for now - hehe..

[limber parcel]

have you considered starting from 0?

[arctic thicket]

I found the problem but i'm not sure what's the clean way to handle it.
The actor i pass to the replicated event is an actor that just got spawned, if i wait 1 seconde before calling the event, the actor exist on the clients and the input is valid.
What's the proper way to wait for an actor to be replicated to everyone before referencing it ?

[limber parcel]

i guess by calling a delegate when everything has loaded

[arctic thicket]

yes but how ?

[limber parcel]

https://docs.unrealengine.com/4.27/en-US/ProgrammingAndScripting/ActorCommunication/EventDispatcherQuickStart/

[proud epoch]

I have - and then it messes up the rest of the spline creation

[limber parcel]

yeah because ure changing the index before even doing anything

[dark drum]

Would anyone have any idea why this wouldn't actually apply an impulse? As far as I can tell it doesn't do anything. The logic is on the hit event for the projectile that is spawned when shooting and the items are set to simulate physics.

[limber parcel]

did you check the output log for errors?

[dark drum]

There aren't any errors unfortunately. :/

[limber parcel]

try making a new physics actor and see if u can get it to just fall down

or just spawn that cube in air and see if it falls

[dark drum]

The items I'm shooting at I can run into and they'll move around. I've tried with just a generic mesh actor with physics and that falls etc... but shooting it still doesn't do anything. :/

[limber parcel]

well then try waking the object before applying impulse

[dark drum]

I've tried that as well and still nothing.

[limber parcel]

maybe ur impulse is just too weak then

[tropic peak]

how can I iterate over an array and add its elements to a struct? Lets say array has 3 elements and my struct has 5 sockets, I'd like to go over it and add each array element to a coresponding socket of a struct

[dark drum]

I thought of that as well. (Hence the multiply node) With this it's at about 400,000. I've even tried using an add force node at the doesn't seem to do anything.

[proud epoch]

Yeah that is the initial issue - But think I might have found my culprit -
My Z axis - First time I tried to unkook it from the location... It got the end point but just not the right height.

[dark drum]

🤦‍♂️ The normal impulse is returning at 0,0,0. Well I guess that's the issue. MFL...

[limber parcel]

did u check the actual values the node receives?

[remote meteor]

hit -> impactnormal * -1 * strength

[limber parcel]

derp

[limber parcel]

your issue is that the index doest start at 0 and the increment is not at the end of the event

[dark drum]

Yea, i had to use the impact normal. I'd love to know why the normal impulse is 0,0,0. I guess it's not what I that it was for lol.

Thanks for the assist.

[remote meteor]

not sure when is impulse normal being populated

[hushed berry]

Hello, is there a fancy way to change the widget style besides using focus? It works ok, but the problem is that whenever the focus is set, the character stops, which I really don't like. I tried to find an alternative, but I'm having a hard time. The only thing I can think of is to use a selector that switches between widgets based on their index, and every time I update the selected widget, I could also send information to other widgets about being unselected, but by doing that I would have to update every widget everytime I'm changing the current selection which I think is not very efficient.

[limber parcel]

first off, how is focus related to setting widget style?

[hushed berry]

It's loosely based on this https://dev.epicgames.com/community/learning/tutorials/B5R6/unreal-engine-common-ui-plugin-keyboard-navigation

[dark drum]

The only reason I can think of a widget being given focus causing issues with character movement is if you're input mode is set to UI and the relevant keys are handled.

[limber parcel]

yeah, the description definitely looks promising

[hushed berry]

The "common ui is a great plugin part" :D?

[limber parcel]

because why use the built-in way to set style when u can use this

[hushed berry]

Could you provide me with some kind of source I could read more about this built in way?

[limber parcel]

apparently not, the documentation is shite

https://docs.unrealengine.com/4.27/en-US/InteractiveExperiences/UMG/HowTo/WidgetTemplates/

here this page mentions it

[hushed berry]

Sure but this won't work with keyboard nor gamepad.

[dark drum]

You probally need to explain a little more about what you're doing when the character 'stops'.

[limber parcel]

why would it not?

[proud epoch]

O.k let me try and figure it out - But, If I start at 0, then do I need to increment it first on the start of the spline and then work it from there or am I understanding this wrong

[limber parcel]

https://tenor.com/view/facepalm-really-stressed-mad-angry-gif-16109475

[hushed berry]

If I unplug the set focus node then I can use the widget normally mid runing etc. When the set focus is plugged In whenever I change the focused widget the character stops, the input still works normally and I can move but I need to press the W or other key to start moving again.

[limber parcel]

well then dont set focus?

[dark drum]

That's probally more down to the widget you're giving focus. Are they activatable widgets?

[proud epoch]

Sorry @limber parcel 🙂 - Not trying to make your day hard..
Thanks for the explanation... Ill try and figure out the math, just been sitting with this for weeks now and reversing the whole code has been bonkers right now.

[hushed berry]

Nope, The widgets that are gaining focus are children of an activatable widget.

[limber parcel]

just do what i said above and it will be fine

[dark drum]

What input mode are you using? Game & UI?

[hushed berry]

That's my idea but well I need to find an alternative to change the style of selected widget.

[hushed berry]

Game only

[limber parcel]

just make a preset and use the native function

[dark drum]

Hmm, i think its down to how the widgets are setup. It's hard to say whats causing the issue but it's not something I experienced using common UI and I use the built in focus system for a lot of things.

The only thing that jumps to mind is the activation focus on activatable widgets but thats only applicable when its activated.

[hushed berry]

Ok, I'll try to think about it some more. Thanks either way.

[stiff chasm]

Guy's I'm a little concerned, is this not clean? or is this just a result of having a big dense class

I'm getting overwhemlmed by my own class, tho I do know what everything does, It's just sometimes hard to find functions and variables so I've been wondering

[hushed berry]

I'll check the class setting of the button that's being focused. Maybe I flipped something that shouldn't be flipped.

[dark drum]

I'd give it a 5 out of 10. You can definitely make more use of catorgories. Beyond that it's more down to class hierarchy but its difficult to know how applicable that would be in your scenario.

[final berry]

Is it possible to have custom collision like the red quarter cylinder (which will then be an invisible static mesh) be dynamically be made smaller to the size of the green one using blueprints?

[faint pasture]

Use a sphere and math

[final berry]

As in calculate which part of the sphere should be used for collision?

[faint pasture]

Dot product to filter your collision

[tropic peak]

If I want to compare two arrays to check if they contain the same items (but chronology is NOT important) is there something like "identical"?

I don't care if the items are in the same order..

sorting them won't solve the problem in this case

[coral gate]

Question about UI: How to delete unused Button variables which don't exist in Designer (market by yellow rectangle) ?

[tropic peak]

they aren't the designer (ui elements) variables though?

[coral gate]

Well i was duplicating the same Widget and using it as template several times and changing each new crated one that way later, i have deleted this two buttons in designer but for some reason they still here in Graph.

[sacred birch]

Hello, can anyone tell me how to add collision in my landscape? I have a skeletal mesh of plane but it's passing through the landscape and not colliding and bouncing back.

[hushed berry]

Check If they are referenced anywhere.

[coral gate]

nothing

i think i need clear cache and intermediate

or something like that

Unreal 5,3 is kinda like doing weird stuff

[hushed berry]

Yes I noticed from the amount of having to restart the engine to "fix" the problem of not being able to (rename/delete) ui stuff.

[coral gate]

Or just "Fatal Error" you when you try to copy some UI element to other place.

[crimson crest]

Has anyone run into any issues with structs?

[frosty heron]

Yes to blueprint structs

[crimson crest]

What sort of issues have you run into?

[frosty heron]

Unknown struct error

Values defaulted back

Etc

[crimson crest]

Yeah it seems to do a lot of weird things especially as it expands

[frosty heron]

Yup

Especially when you edit the bp structs

Adding , removing or changing its order

Solution is to declare your struct in cpp

Blueprint struct is broken and has been for forever

[crimson crest]

That's what I will do then

appreciate it

[willow gate]

Anyone know why my character "jumps" or gets nudged when I attach an actor to it even when the other actor has no collisions?

[lofty rapids]

what is the data in the arrays ?

[tropic peak]

text or string

but that's only because I couldn't use data asset for sorting array

[lofty rapids]

so they are sorted ?

i mean trying to compare two arrays idk of any built in

but looping through and keeping an inc variable maybe try to match the array.length

[tropic peak]

I kinda got it to work but need some adjustments

[lofty rapids]

if they are sorted you can match them one to one to see if they are equal in a loop

possibly using a loop over the array, make a copy of the second one somehow, check if the second array "contains" the value in the foreach, if it does remove it from second array, and keep checking, if the array is empty at the end it is equal

if the order doesn't matter that should work, if the order matters then just compare it one to one through a loop

[tropic peak]

i convert the pieces of my data assets to strings, add them to a temporary array, sort, then compare with another one

I mean that's what I am going to do when my brain comes back from a nap at some point

[lofty rapids]

https://blueprintue.com/blueprint/bz-4-_c4/

if they are sorted then you can just match the values at each index

because they will be in the same order if they are equal

in this example the order doesn't matter

which is what i thought you were looking for

[tropic peak]

that's awesome, thanks, I'll fix my thing

[proud epoch]

Thank you @limber parcel - I removed some of the increments and then found I was creating way to many spline points in the end.
Removing unneeded spline points did the trick

[limpid nebula]

HI ,How do I make the AI turn smoothly to a custom target in the behaviour tree when orient rotation to movement is set to 'true'.

[maiden wadi]

You need to turn that off. It shouldn't normally be used for AI as they'll orient to their movement direction anyhow when they don't have a focus target.

[light turret]

I’m trying to make this turret hurt me via GAS, but the Gameplay Event I target doesn’t trigger. Both the player and turret inherit from Monster which has GAS set up. The player has a State with its own GAS system that overrides the one it inherits from Monster.

On tick I have the turret casting in front for a collision and using ‘Send Gameplay Event to Actor’ with the tag ‘GAS.Pickup.Health’. There's a print in the Ability but it doesn't trigger.

[timber plume]

hi all, I just upgraded to 5.4 and something seems to have changed with actor rotation that is affecting and broke a feature of mine. It seems like something is either now overriding actor rotation or it disallows changing it, perhaps just on characters. Here is an example, same code. I'm wondering if anyone knows of a change that was made between 5.1 to 5.4 and alternatives to use?

[light turret]

and by cast I mean line trace by channel

[timber plume]

solved, for whatever reason I didn't used to need to turn off orient rotation to movement in the movement component, now I do.

[still basin]

Hi guys! I'm new to programming in blueprints. I don't have a lot of experience with programming in general, and I'm having trouble understanding a blueprint that I'm using. Can I share it here and ask for help for understanding it?

[frail onyx]

Hi, can anyone help me with this? Im trying to change the players fov and camera sensitivity while Aiming with a weapon but for some reason after i ads the first time it messes up the camera and cause a slight jittering effect when moving and looking around for until i end the game and start again

i feel like another thing that is also a bit weird is normally other games look perfectly fine on 90 fov and look great but when my camera is on 90 fov is looks pretty zoomed in and nothing like 90 fov is on other games so have to make the cameras fov to about 120 fov by default to look like 90 fov

[jagged moss]

I want to start on adding a vehicle in my game that my character can use. I would prefer it to be a train following a traintrack but how hard is it to make a train following a track compared to just making a car? also, if I end up with a random generating world, is it hard to keep the traintrack generating?

[desert juniper]

There's a process to modifying / deleting structs that you've made in BP to ensure no corruption

#ue5-general message

this works if your game is already built around BP structs.
Even if you try to refactor and move to C++ structs, your game will likely break and you'll see a lot of BP corruption as you delete the structs if you don't follow those steps

[real tree]

I need help figuring out an issue. So I'm trying to use a render target to create a shadow map separate from the engine's own shadow system, and I'm wondering, how would I go about adjusting the position of the render target in a way where it's position is centered on everything in the level?

I got the rotation like the directional lights, but I need to figure out how to position it in a way where the shadows will be accurate, since it's using a capture component with a depth buffer in orthographic view.

[crimson crest]

I appreciate that, I was thinking of redoing the whole system in C++ from scratch but if I can do that it will save a bunch of time.

[desert juniper]

note however, this is to prevent future corruption, not to fix BP corruption that already occured because of this

General rule is feel free to modify structs as much as you'd like BEFORE you implement them in game
Once an object has a reference to / uses that struct then you have to follow the rules above if you want to modify your struct to avoid bp corruption

[crimson crest]

I have not had it happen yet but I've heard a lot of people talking about BP struct breaking.

So far I've just been backing up before I make any bigger changes

to any structs

[desert juniper]

by backing up you mean using VCS right?

[crimson crest]

Yeah

[desert juniper]

😄

perfect. just know that BP corruption can be a latent failure. you may not see it right away. so def follow those rules to avoid being unlucky.
thanks for coming to my ted talk.

[crimson crest]

hahaha

I appreciate it

First time doing everything in BP, usually build the main systems in C++

wanted to see how far I could get and that kind of spooked me

[desert juniper]

if you want to have even more fun look at AngelScript 😉

it's a battle tested C++ like scripting language with full UE support, and has instant compile times

[crimson crest]

that sounds interesting

Ill have to check it out

[desert juniper]

https://angelscript.hazelight.se/

it's become my new go-to

[crimson crest]

It honestly looks better suited for unreal haha

well now i have a new toy to mess with

[desert juniper]

yeah it's worth playing around at least to see another option.
it's got very close to C++ performance, and speeds up iteration for those of us who prefer a typed language as opposed to BP

not a shill i promise 🤞🏽 lol

[crimson crest]

LOL

getting that CTR

[desert juniper]

hey if they want to may me for a free framework they offer, then I'm all ears. lmao

[maiden wadi]

A train following a track is just a pawn with like a floating movement component following a spline. How you structure that to enable generation is up to you, but should mostly be about adding new points. Can even generate the tracks visually along the spline.

[graceful sage]

Save all before changing struct. Change struct. Save ONLY the struct. Close the engine. DONT Save. Reopen project.

[trim matrix]

I just have a quick question, I know having a lot of casts is bad for memory, but is having a lot of casts for Actors that are constantly in the world still bad? Or is it fine since those Actors are already loaded anyways?

[sacred birch]

Beginner to Unreal Engine here.
Can anyone tell me where to start with blueprints learning ? I'm getting really confused whenever I watch different tutorials, they do the things really differently so I want to know where to learn and where to start exactly.

Like which function, which variable etc etc to call when and everything, I want to learn these things.
So from where to learn? Kindly help. I want to learn from the base to the core concepts.

[graceful sage]

Learn.unrealengine.com

[sacred birch]

I actually saw this before but like which tutorials to watch initially? Like in an hierarchical manner

[graceful sage]

Probably start with the first hours in unreal and blueprint communication

[autumn pulsar]

kind of dumb question, but if I have a blueprint attached to an pawn, can I call events on that blueprint from that pawn?

[graceful sage]

Kinda depends but probably yeah

As long as you have a reference to it

[autumn pulsar]

I was struggling for a bit, but found I needed to convert that reference to a child before I could use it

[merry chasm]

hi guys

Do you have any idea why the depth of field looks like this? See the edge of the sign.. it looks like when the AI don't know what is in foreground or background in mobiles 😄