blueprint

[teal lagoon]

Cook, I'll try that, thank you.

[icy dragon]

Consider looking into granular synthesis for vehicle engine.

[teal lagoon]

I think that did it 🙂 Thank you again!

[teal lagoon]

I will, is that all internal to UE5? I'm familiar with Ableton and such, unclear what's possible in the game engine though.

[icy dragon]

Yes, it's internal since, what, 4.18?

[teal lagoon]

sweet, thank you, I'll check that out

[faint pasture]

Make a cue that has parameters Throttle and RPM and feed it on tick

[teal lagoon]

This is my cue currently - I got the RPM events to fire, and can see them when I run the game. They don't seem to be firing off the crossfader

[icy dragon]

Also since you use UE5, do consider using MetaSounds as opposed to sound cues

[teal lagoon]

I'll try that, since I'm still hitting a wall here it seems, thank you.

[teal lagoon]

Got MetaSound installed but I think I was pretty close to having something work with the SoundCue for now, and I'm 2 days into this problem XD

Unlclear why its not firing as the RPM's should be setting off the audio :/

I'm going to crash for the night (Eastern Time) but thankyou for those that pushed me along 🙂

[late gorge]

any clue why my pawn is getting placed at a random position? im not calling any set actor location anywhere and im even setting ignore move and look input while the widget is open (the code is really simple, im 100% sure of this)

this is on first person template with just the meshes removed and ability to fire disconnected

[surreal peak]

Are you holding forward when you open the widget?

If you change the input mode you may never give the engine the chance to release the key

[late gorge]

oh lol the set ignore is supposed to be true

[surreal peak]

Try flushing input on the PlayerController

[late gorge]

not false

https://tenor.com/view/homer-simpson-les-simpson-matt-groening-ouff-non-gif-12807779

[surreal peak]

Even then

Try to also flush input

[late gorge]

dont think that's possible in blueprints

[surreal peak]

It should

[late gorge]

and it did the trick to set the ignores to true

not false

[surreal peak]

Also if you change the input mode to UI only and flush inputs it should also work just fine. But sure if it works now then don't worry (:

[surreal peak]

It could be that your character keeps walking when you close the UI again

Not sure

Hm I could swear I use this in BP

Maybe I exposed it...

[late gorge]

its likely the set ignore move input does the flush

never had an issue using this method to make sure pawns or characters stayed put

[surreal peak]

Iirc that only sets a boolean which is checked but would need to double check

Hm okay

[late gorge]

but always forget the true/false is tricksy xD

[soft peak]

hi, in blueprints, how can i get the mesh played inside the playerstart?
what i got:

what i tried

but it does not found anything

i can use tag on "playerstart" istself, but how am i supposed to find the mesh then?

[spark steppe]

i'm not sure if playerstart is an actor

most likely not

[trim matrix]

Hey guys ! Do you know if it’s possible to run GC in a blueprint ?

[spark steppe]

not without 3rd party plugin

and i think it's not recommended after all

[trim matrix]

Yeah but I would need that for a very specific type of test.. not for a game

Do you know any plug-in to do that ?

[spark steppe]

no, but there are some, i just cant recall which did add that

[trim matrix]

Ok will have a look ! Thank you for the info !

[spark steppe]

also it's just one c++ call iirc, so you could make your own node if you cant find anything

[trim matrix]

Awesome !

[spark steppe]

also, UE5.1 seems to have a "collect garbage" node?!

[trim matrix]

Oh wow !

Damn I’m still on 4.27

[spark steppe]

well, you could look at 5.1 source and see what it does

so at least you got an official resource

[trim matrix]

Do you know why they say:

You should never ever allocate and destroy anything rapidly “At a rapid rate” - If you are doing this then you should be using a spare list. And reusing those allocations.

On thé forum

Why could he the downside of doing so ?

[spark steppe]

garbagecollection 😛

idk for sure, sorry

[trim matrix]

😂

No worries

[spark steppe]

well either that, or memory allocation

and it may also depend on what you create/delete at a rapid rate

[trim matrix]

it's on 4.27 too !

[olive sedge]

hey guys! Is it possible to override blueprint custom events in child BPs?

[tight schooner]

I couldn't give you a detailed technical explanation, but spawning stuff has a cost and can impact GC and memory usage (as resources used by the destroyed stuff isn't freed until GC), so "pooling" is a common strategy for that. There's also a built-in pooling system for Niagara VFX (it's on the spawn nodes) cuz it's typical to spawn/destroy a lot of them. And yeah, the Collect Garbage BP node has been in UE4 for years.

[tight schooner]

yeah, you can override events in child classes

just remember to "call parent function"

if you need it

[olive sedge]

how do you do that?

I mean custom events tho

[spark steppe]

click the override button at events or functions

[olive sedge]

if I want to name a custom event like in the parent, it doesn't let me

[tight schooner]

I think the node will just be available if you search for it

to slap that parent event on your child event graph

(remember to compile the parent BP first...)

[olive sedge]

where, search? and I don't mean event dispatchers, I mean custom events

[tight schooner]

yeah

right click on an empty space in the event graph and type?

I'm starting UE4 just to make sure I'm not losing my mind

yeah, if your parent function has (e.g.) MyCustomEvent in it

go to your child graph, right click, type MyCustomEvent, scroll up a little, and it'll be in the "add event" section

as an item named "Event MyCustomEvent"

merely adding it to your event graph overrides the parent event. Right click on the event node and "Add Call to Parent Function" if desired

Or like Ben said you can click the Override button in the functions rollout

to get a list of override-able functions/events

[olive sedge]

aaaah.

ok

yea

thanks @tight schooner :D

[remote meteor]

construction costs

especially if you are trying to do like 60 times in a frame

if you have those cases, its either you should do object pooling or aggregate the spawn

[soft peak]

what is the correct way to clamp the movement of a player? via set location??

[quiet canyon]

Guys do you know how I can, get FVector (of black object)based on the **rotation ** of my blue object
Bear in mind the goal is to find Black Object pointed and then SPAWN it there ... at the time of calc it's not spawned.

[trim matrix]

Awesome ! Thanks for the explanations !

[remote meteor]

find look at > x vector from rotation

[trim matrix]

So « collect garbage » node should empty the memory of all previous destroyed actors right ?

[quiet canyon]

Hey, i'm sorry the black obj was not spawned at the time of looking for the vector .. I updated the question.

[remote meteor]

yeah you just need to know the location

find look at takes in 2 location

not actor

[quiet canyon]

ok but I'm trying to find where would be the second location and then spawn the blck Obj there... I don't know where will be ..

[remote meteor]

oh

[quiet canyon]

all I have is localtion of Blu obj and it's rotation

[remote meteor]

the usual way to find offset

is this

hold on

[quiet canyon]

it must match the rotation of the blue obj... i.e. like Clock .. arrow's roation will point to where I would need to spawn the black obj

[mental trellis]

UnrotateVector -> (Black.Location - Blue.Location) by Blue.Rotation

[remote meteor]

the usual way we calculate location offset is this

you need to know from where, which direction, how many units

then you can know the other location

[mental trellis]

If you want the local offset of black in blue space.

If have an offset from blue, in blue space, and you want it in world space, use Blue.Location + RotateVector -> Offset by Blue.Rotation

[quiet canyon]

@mental trellis @remote meteor guys , sorry but I don't have Location of Black Obj ...

1. I have location of Blue OBJ
   2 I have rotation of Blue OBJ (Rotated -40 of Roll i.e. X)
   My goal is to spawn black OBj in direction based on Blue Obj with some offset ...
   so in order to spawn it I need to know how to find the future vector for spawning
   If your answers are anwering this.. then just ingnore me until I figure out your answers

[remote meteor]

https://cdn.discordapp.com/emojis/643129248470794262.gif

[mental trellis]

See my last message

[quiet canyon]

I'll try it now

[remote meteor]

The break is for comment purpose, not needed in the equation

[mental trellis]

That would always move it in the +x direction, not an arbitrary offset

[quiet canyon]

@mental trellis if you meant this -> it's not working.. I'm spawining it in above the blue object and not in let's say 2 o'clock if we take analog clock with arrows

[quiet canyon]

I'll try this one now

[mental trellis]

That's because this is not correct

[quiet canyon]

@remote meteor this on also not worked for me it was moving it in X derection as @mental trellis said

[mental trellis]

Do you want a clock solution where you want the black thing to appear at a particular hour on the clock?

[remote meteor]

uh

[mental trellis]

A yes/no instead of a heart might be a better response.

[icy dragon]

I guess the vocab goes like this
❤️ = yes
💔 = no

[mental trellis]

I'm not responding to those, though.

[quiet canyon]

Yes I would like, you were spot on .. and I don't expect anyone to take the time to help me ... I was emotional 🙂 @mental trellis

[icy dragon]

Can we make bool replacement with that tho? :pogU:

[wise tide]

does the print node print on all clients? I am trying to make something client side and when I print it is printing on all clients and im not sure if thats because i messed it up or if print just works like that

[icy dragon]

Don't be emotional

[icy dragon]

Print String? It won't work in Shipping

[wise tide]

Yes, I am testing multiplayer in editor and it is printing on all "clients", not sure what they are called

when you press play and it opens 3 windows, one for each client. My print string is printing to every window, not just the one interacting with my object

[mental trellis]

Okay, so, you want something like that: Blue.Location + RotateVector -> MakeRotator(hour * 30, 0, 0).Rotate(distance, 0, 0) by Blue.Rotation

[icy dragon]

Ah, simulated MP.
Nothing said about Print String being client only

[wise tide]

I see, I didn't know if I just messed up my object and it was actually not client side or if print string just shows on all clients

[icy dragon]

Also since simulated MP is still under one editor, that'd be bound to happen

[remote meteor]

so if you are not going to bother to read the comments then i have no idea

what is wrong?

[icy dragon]

Nobody reads the damn comments, just like compilers

[mental trellis]

What are you trying to do with combine rotators?

[remote meteor]

Some Rotation You Want

[icy dragon]

#graphics

[quiet canyon]

I can't understand this.. pseudo code

1. Blue.Location + RotateVector -> so RotateVector -> should I plug something there ? I have 2 input pins ?
2. How should I understand MakeRotator(hour * 30, 0, 0).Rotate(distance, 0, 0)
3. and then **by Blue.Rotation **

BTW if you type it in C++ I'll understand it

[quiet canyon]

I read the comments ... but what I'm getting is the black obj is spawned in X direction (I'm talking the first code..). Thisi 2D sider scroller so forward is in Y and Z is up ... X is not used just as depth ...

[mental trellis]

2. Add a make rotator node. Connect your require hour * 30 to the roll value. Then drag off the output pin and do rotate vector. In the vector part of that node, make the Z value (not X, sorry, that was a mistake!) the distance away from the centre you want.

[remote meteor]

oh yeah now we get more info

[mental trellis]

Then in the output of that rotate vector node, you get make another rotate vector node (don't use the one with quat)

In the rotator input put of that node, you put blue's rotation.

[wise tide]

Trying to make a changing room so my players can change skin in lobby. I made it so when someone enters the changing room it locks and other players cannot enter. I was going to freeze the player and change their camera to one in the changing room so they can see themselves using "Set View Target with Blend".

It doesn't seem to work how I expected though. It just makes them look from their pelvis. Any ideas?

[remote meteor]

your actor's scene component need to have a camera component, set view target with blend will find it automatically

or you can always have a fix camera in the levels and blend to them instead

[wise tide]

Yeah it does

[remote meteor]

where is that camera?

[remote meteor]

new view target shouldnt be empty

[obtuse herald]

New view target should be your camera you want to switch to

[wise tide]

you cant put in camera component, when I looked it up apparently you put self and it gets the camera from the actor

oh I see where I went wrong

[remote meteor]

you put self

[wise tide]

I need a self node, it doesnt just automatically use self

yea

tyvm

[obtuse herald]

Eh yeah you're right

Use self instead

[quiet canyon]

hm.. I tried to understand it,...so is this what you meant ?

[limpid bronze]

I don't know if this is the right channel to post a question in

but how do you use flipbooks in widgets

I want to put an animated character on my title screen

[mental trellis]

Let me load the editor 😦

[icy dragon]

That'd be #graphics realm

[limpid bronze]

thanks

[icy dragon]

(considering it'd be done with materials)

[serene bramble]

How do I get/show and change keybinds with game user settings?

Also, is there a built in way to add hover/click sounds to buttons in my UI? Or do I just have to manually add sound?

[quiet canyon]

I had to do some modifiations ...... but that definatly worked ! Thank you very much>
Final BP ->

[mental trellis]

So where is the "hour" part coming in? That'll always be at 12 o'clock.

[sly forge]

Does anyone know why my bp loses its parent everytime i open the project?

i didnt rename my cpp class

[quiet canyon]

It's not needed.. let's say my clock has 1 arrow .. and its roation is used to decided where will spawn the black obj.

[obtuse herald]

To change your keybinds in runtime you this plugin:
https://docs.unrealengine.com/4.27/en-US/InteractiveExperiences/Input/EnhancedInput/

You can add hover and click sounds to any UMG Button via the details panel.

[mental trellis]

Right.

[serene bramble]

Hm, okay. I was told to use game user settings by someone else but I'll take a look into that. And thanks - I'm assuming I can just select actual audio files in the project?

Oh wait, is that system not for blueprints?

[obtuse herald]

Yeah

[obtuse herald]

Also seems like I was wrong, you can change keybinds during runtime without the plugin in blueprints

sorry

[serene bramble]

All good. Question still stands then

[mental trellis]

Heh.

Silly blueprints.

[obtuse herald]

https://www.youtube.com/watch?v=VqHEr2b6r5Q this explains it pretty well

[icy dragon]

One way to do it is to have the button's on press event do Play Sound 2D

[serene bramble]

At the moment I want click tones for buttons that open menus and buttons that go back (like most games) to give the UI some more atmosphere. Right now it's very bland and soundless

[obtuse herald]

Like I said, you can change the sound inside the buttons details panel

[serene bramble]

Yeah, about to try it

[tiny garden]

Hi, I saw someones bp configuration for a material and was wondering how to create this node /
I can't seem to find it using the search function or online, is there a shortcut to create it?

[icy dragon]

Why does the images looked low res all of a sudden lol

[obtuse herald]

probably screenshotted a google search result (just like I did)

[icy dragon]

I thought Discord screwed up or we having low res hour lmao

[limber jacinth]

That is a function input node (Vector 3) in a Material Function. Search for Function Input.

[tiny garden]

Thank you

[solar needle]

How to make turret see spesific actor ckass

Most turret tutorial only target pawn

[icy dragon]

It's the same, only the class is different

[solar needle]

Yes but i need my turret to fire spesific actor. I dodnt know what node it called

[icy dragon]

Show your BP

[solar needle]

i need to change get player pawn. into specific actor in BP

[serene bramble]

Can I turn a string into a specific type of enum if I know the string will be one of them?

Doesn't seem it'll auto convert

[icy dragon]

Just do cast as desired class before getting the location

[solar needle]

i check that later.

for now there is a bigger problem. i was using find look at location but orientation all wrong despite the socket

image number 1 is the real orientation

i use socket btw

nevermind the socket making the problem it seems

finally its finished

damn hard

@icy dragonbtw when i type cast. there is a lot of cast. which one should i use ?

[icy dragon]

The class you want to use, of course.

[solar needle]

i mean the nodes

as long it can connect to get actor location

i dont have to connect executable ?

[icy dragon]

Well, you still have to have the Cast node to be executed

[mental imp]

so basically im try8ing to get this animation to play where they draw their sword and the sword will follow the hand. i have this code but at some point it stops working. the green check marks are parts where i confirmed it worked, but the red question mark is where it breaks and i cant figure it out. any ideas on why this is breaking?

[tawdry surge]

First cuz it's bothering me, why are you checking not equal to false? You could just plug the bool in directly and get the same result
And can you define "breaks"?

[mental imp]

i mean it stops working, the code is broken

[mental imp]

i put it there to make it set what it isnt but now that i think about it, its redundant i think

im pretty new to this stuff

[tawdry surge]

The set is fine. The check is just returning what the bool already is, so it's pointless

If you right click on the branch and add a breakpoint, when you hit play it'll stop the code execution there and you can step through to see what's happening
Or
You can use print strings to do it

[mental imp]

It’s just straight up not doing anything

Which is weird

do you think its a problem with my mesh

meshes

[tawdry surge]

If the mesh isn't compatible with the montage then it won't do anything. You sure it's using the right skeleton?

[trim matrix]

guyz, do you know how to solve that issue?
LogScript: Warning: Attempted to access glTFRuntimeAssetActor_10 via property CallFunc_FinishSpawningActor_ReturnValue, but glTFRuntimeAssetActor_10 is pending kill

[mental imp]

How can I check

[cyan bone]

Hard question:
I have group of soldiers moving into random positions. And need to form a overall collision for them.
So i have these blue lines already from the convex hull, in the figure 1.
But now i need to turn into a cylinder-like procedural mesh like in figure 2.
And then convert it to a complex collision.
How can i turn the 2d geometry of figure 1 into the cylinder-like procedural mesh of figure 2 ?

[tawdry surge]

@mental imp open the montage asset and see if your skeletal mesh is in the list of preview assets.
You can also check the skeleton the montage is targeting is the same as your skeleton mesh from the content browser, by hovering your cursor over each and looking at the asset data

[mental imp]

its targeting a skeleton of the model, not a skeleton mesh. is that what i want?

[tawdry surge]

@trim matrix it's saying you tried to reference an asset that's been destroyed and is waiting on garbage collection to remove it. Just do an "is valid" first

@mental imp what do you mean skeleton of a model not a skeletal mesh?

[earnest tangle]

This might be possible using a procedural mesh component as you can use it to generate meshes and collisions at runtime. If that won't work, then you may have to look into C++ based solutions

[trim matrix]

awesome! trying

[cyan bone]

Thank you. Could you give me some hints on how can i get the geometry right of figure 1 to figure 2?
How do i build this kind of cylinder like shape? Its the first time im doing something like this, i have no clue

[trim matrix]

guys, i'm trying to free the memory of previous glTF, using a destory+garbageCollector... the actor is properly destroyed, but the memory of previous one is not released.. any idea?

[icy dragon]

Wasn't I already suggested you somewhere else to use anim notify?

[mental imp]

yeah

[mental trellis]

If you already have figure one, copy the vertices and add a Z offset - that is your vertex set for figure 2.

[icy dragon]

What makes your weird delay setup more preferrable than anim notifies?

[mental trellis]

Then for every vertex, vertex+1, vertex+(initialsize of vertex list) and vertex+(initialsize of vertex list)+1, add in 2 triangles

(up to initial vertex list size-1)

[icy dragon]

I don't know about you, but I'm doing equip/unequip logic for the weapons with anim notifies, and it worked fine

[mental imp]

I’ll edit it in a second lol

I’ll see if it fixed it

which anim notifies

do i use

[icy dragon]

Make your own.

[mental imp]

plelase explain

i dont know what anim notify even is

[icy dragon]

https://youtu.be/Wi4xlNULyWk

20 seconds of googling.

[mental imp]

thanks sorry

[earnest tangle]

No idea tbh :) I'd start by just generating a rectangle for a start, you can then look up algorithms on how to "tighten" it around your points

[cyan bone]

im already making tests but this feels so confusing. hopefully its as simple as @mental trellis said

[mental trellis]

If you already have the vertices for figure 1, it's pretty damn simple.

[earnest tangle]

👍

[mental imp]

still doesnt work

[mental trellis]

Then triangulate the inside too and you're done?

[cursive cosmos]

Hey would anyone be able to help me with a small problem im having. Will have to DM tho as its quite long :)

[mental trellis]

0,1,2 - 0,2,3 - 0,3,4 for the bottom

I'm assuming a hull like that is built like a regular mesh

[earnest tangle]

You are significantly more likely to get help on the channel than in DMs

[cursive cosmos]

oh oki!

[earnest tangle]

I wouldn't worry about the length so much, it usually isn't such a big deal as long as you can phrase the problem in an understandable way :)

[mental trellis]

90% of programmer problems are solved by trying to work out how to phrase it the right way

[mental imp]

@icy dragon a weird thing i should add is when i make the sword default to the hand instead of the back, it will work, but only once.

lemme try to get avideo

[cyan bone]

Thanks so much. I saved that. Now its just work until i get it right.

[mental trellis]

Don't forget this bit - and to repeat it for the top

[cyan bone]

So i need to make 2 triangles per square, and then unite all squares? and that will make the mesh?

[mental trellis]

That will make a mesh. you may need to look at the triangle index ordering (ABC or ACB)

That will determine which way the triangle faces

[mental imp]

@icy dragon

[sly spade]

Is set yaw input for chaos vehicle broken? giving -1(left) input doesnt react the same way as +1(right)

[icy dragon]

#chaos-physics

[cyan bone]

thats the tricky part i think. but needs only testing and persistence 🙂

[icy dragon]

Show your anim notify setup

[radiant jewel]

Quick question, hopefully, one-to-many versus many-to-many of same reference to diff node types.. any difference for performance?

would having a Sprite node per Set Flipbook worse, or same, basically

[mental trellis]

Probably the same.

[radiant jewel]

Thanks, hoping as much, then I can make less spaghetti graphs

[glass stump]

I have a camera shake and material movement that plays when the player collides with a box collision, however I've noticed that the longer I go without colliding with it, the faster and more intense both the shake and the material movement is when I finally do. Any ideas why this might be?

[slate harness]

Hi, I have a problem with my weapons sway, as you can see on the third image my gun is on the side and i cant figure whats wrong with the code above, can someone help me plz

[icy dragon]

Oh, you're still using the delay setup

[mental imp]

What am I supposed to use?

[cyan bone]

@mental trellis So i have the first points array. And created the second points array with an offset of 200 Z.
Now how do i form a triangle from vertice 0 with its corresponding vertices?
The create grid mesh triangles only has some weird integer arguments. Wasnt it supposed to ask for points? Or thats the wrong node?
https://blueprintue.com/blueprint/6svpflej/

[mental trellis]

Why are you using create grid mesh triangles?

Also

[cyan bone]

because i watched it in a tutorial. what should i use instead?

[mental trellis]

Your second set of debug points don't seem to be right in that image.

I don't know, I've never used PMC in BPs.

However, that function isn't it.

[cyan bone]

they are right i think. They just distorted a bit because of 3D perspective. or is there something im missing?

[mental trellis]

Well, they should be directly above the other points, no?

[cyan bone]

yes they are its the 3d 🙂

[mental trellis]

Uh huh.

I guess I'm confusing your debug points with the weird black squares.

those are your army units I guess?

So what's the problem, I gave you the algorithm earlier.

Find the 'add triangle' or whatever method

[cyan bone]

the black squares are points that are inside the convex hull (not selected)

[mental trellis]

Meshes work by having a list of vertices.

They also have a list of triangles - those triangles are a list of indices of the vertices.

E.g. you have 4 vertices for a square (0,0,0), (1,0,0), (1,1,0), (0,1,0)

Your triangle array would be 0,1,2,0,2,3

With that knowledge, you should be able to create a mesh.

[waxen trench]

Hey all 👋

I made a camera plugin for real time strategy / MOBA games that I'm hoping to release for free on the marketplace. I wanted to get some code review on the plugin before publishing and / or get some ideas for where I can go further with it.
I'm new to using the engine and I have a problem with starting and stopping too many projects and re-implementing things I've done before. 😅 I wanted to take a different approach this time and build out fully fleshed out mechanics that I can drag and drop into a game at any time. I'm hoping that open sourcing the project and taking in feedback from other developers will help me make the mechanics the best they can possibly be.

https://github.com/HeyZoos/OpenRTSCamera
https://github.com/HeyZoos/OpenRTSCamera/wiki/Installing-from-GitHub
https://github.com/HeyZoos/OpenRTSCamera/wiki/Getting-Started

I'm considering creating a selection / highlighting system next, but I'm not sure if I should build that into this project or make it another standalone plugin. Any and all feedback would be appreciated! I'm especially keen on getting advice about best practices both for the blueprint code itself, and also for how to make the plugin as a whole modular.

[gentle urchin]

BP only?

[mental trellis]

Well technically anything BP could be used in c++ as well. How hard that would be would depend on how it's made!

[gentle urchin]

Can easily be ported anyways, so its not a big deal

[waxen trench]

Yeah all the source is in Blueprints, I was considering making it in C++ but thought not to to make it easier haha. Is it actually more generally usable if it's written in C++?

[mental trellis]

It'd be easier to use for everyone - because it'd be easily available in c++ and bp.

Plus people could browse your code without having to laod the engine and open all your blueprints.

[waxen trench]

Noted, okay that should be a pretty straightforward process, I'll be back in a few days with C++ haha

[mental trellis]

Lol fair enough 😉

[gentle urchin]

The last part is why i'd want it in cpp

To read the code without having to download anything :p

[waxen trench]

For sure, I also prefer reading source code - not sure why I had it in my head that blueprints was the community's "accessible" option so I implemented it that way

But if most people prefer it in C++ with the option of BPs then that does sound better

[gentle urchin]

As long as the necessary functions are exposed to bp, it's all good 😄

[trim matrix]

Hi everyone! question, how can i release all textures in the pool from the memory?

[icy dragon]

Unload every single mesh from the scene

[trim matrix]

Other question, i'm trying to restart the game, but not sure how to plug the currect game in the target? any idea?

[glass stump]

I think you need to 'Get Player Character' instead of 'Get Game Mode', but I might be wrong.

[mental trellis]

No

It says the target is "Game Mode"

So "get game mode" is the correct node.

[mental trellis]

"Get Game Mode" will get the game mode of the current game, that's what you need.

[trim matrix]

but i can't connect it to the target..

should i do another step?

[mental trellis]

No erm. It should work?

Shrug

[trim matrix]

the message is odd lol

[mental trellis]

Ah. You need to cast it to GameMode.

[trim matrix]

i guess like this?

[mental trellis]

Correct.

...Get Game Mode should really not return Game Mode Base...

[soft peak]

so i have this var in my thirdpersoncharacter blueprint:

[mental trellis]

What about GameMode?!

I'm sure it used to be AGameMode.

Ah.

[soft peak]

how can i get the variable from another blueprint? i have that player1 variable reference:

how am i able to get "disable_y_pos"?

character object reference

[mental trellis]

Change it to a third person object ref like your other class then

[soft peak]

defined as:

ok i try it thanks

oh it kinda works....i just need to figure out why it always switches from "true/false"

thanks alot

[teal lagoon]

Hey folks - Struggling to get my crossfade by param to fire.

It does seem to fire RPM properly

I'm very new to this, and helping out with the audio side for a game jam, fwiw.

[trim matrix]

well i can plug it, but it fail to cast..;

no idea.. i don't have any game mode BP in my scene

checking

oh yeah working! thank you!

[low marlin]

omg its a car

[trim matrix]

i did 😂

why? not good?

i tried but the memory does not release everything, i tried to kill all actors and no memory drops.. even after a Garbage Clean

well i tried, but for some unknown reasons, even after killing all the actors of the game, i can't get the memory usage to be as low as when i start the game

[hallow gate]

Quick Query, if I delete all references to a Dynamic Material I've created during runtime, will UE4 automatically remove it from memory to save space?

I want to clear an array and save memory by deleting a series of dynamic materials and renders I've created before, BEFORE creating more, and I've noticed there's no "Destroy Material" or "Delete Material" nodes, which leads me to believe either my game will slow down in extended playtimes OR UE4 automatically garbage collects them during runtime?

Does it function on dynamic materials and dynamic renders?

If so that'll make my life infinitely easier

Assuming I'm creating them like this (which I am), simply clearing those arrays will then ensure they are deleted?

This is probably a super minor thing to get hung up on, but I'd rather not have 100 dynamic instances just floating around because I was lazy during cleanup haha

[mental trellis]

When there are no longer any strong references to uobjects, they are candidates for garbage collection.

That may not happen instantly.

[hallow gate]

As long as it eventually happens I'm a happy chappy, thank you

Both of you

[gentle urchin]

Erh, moving it to graphics*

[low marlin]

how do i wait until the player character is no longer touching any actor with the class "door"

[prime fulcrum]

Anybody know how i can do this with my / a backrooms map? https://www.youtube.com/watch?v=2Yx4v8bICwA

[west gyro]

has anybody a clue why connecting a controller causes the character to start moving a tiny bit and the camera to rotate as well?

its not only for me. Other team members have the same issue so its not my controller

[cobalt gulch]

How can I recheck if the player is still in the box?

Because this only does the damage once

[crude isle]

yo how can I make one camera shake blend to another

[hallow gate]

Lerp + Timeline

[crude isle]

idk how to do that lol

[hallow gate]

Google! 😄

[crude isle]

oh god

[hallow gate]

Knowing the names of what you want to do helps a lot

[west gyro]

i would love to be at this point ;D

[hallow gate]

For example, I'm lerping from A (starting position) to B (end aim for rotation) using a timeline (a timer that outputs what you want at certain times) to act as the blend

[zealous moth]

@cobalt gulch you mean like continuous damage while overlapping right? You need to trigger a timer and toggle it on and off. Timers will also loop every so often you tell them to

[hallow gate]

I could really use some assistance, I've been scratching my head on this one for hours;

Basically; I'm Creating a Dynamic Render 2D and capturing a scene to it. Then I am creating a Dynamic Material Instance and setting the Texture Parameter Value to the Dynamic Render 2D.

Then on a button press I am spawning an Actor (PaperA) and setting the material of that actor to the Dynamic Material

Unfortunately, it always comes out black and I have no freaking clue why

I've been banging my head on this for hours and honestly if someone knows what I've beggared up I'd love you forever

I have confirmed that the arrays are working fine

I should note the picture on the monitor is being handled by fixed versions of the Render and Materials as they are permanent, whereas the paper was meant to be temporary

Here's the monitor picture equivalent:

So doing it manually to manually created textures and materials it works flawlessly, somehow I'm not figuring out what the deal is with these dynamic ones

And doing it manually for every picture isn't plausible as I can't create 1,000s of blank materials just in case they need to be used

[solar needle]

making turret aim at AI. but it doesnt work. what went wrong ?

[tawdry surge]

So basically you narrowed it down to the problem being with the dynamic material.
Is the dynamic material being created and is it printing the name from the print string? @hallow gate

[stable dove]

Anyone know why this error is happening everything works perfectly whilst running the game, errors are just filling up the log

[hallow gate]

Yes, it's printing the correct string

[hallow gate]

Click on the link of the last error and it'll take you to where it's occuring

Something is returning "Null"

[tawdry surge]

Then it's a problem with the parameter value. Are you sure it's doing that?

[hallow gate]

Do you want to hop in a call so I can show you the debugs? That might be more helpful

[tawdry surge]

I can't vc at the moment

[stable dove]

yh its that set overall dice score node, but i cant figure out why its giving me an error, i dont think its returning null because the widget is displaying the correct score of the two dice

[tawdry surge]

It's pretty easy to figure out tho

[tawdry surge]

You gotta get the parameter value and print it after you set it. If it's still at the default value (0) then it's not

[hallow gate]

Alright one sec

It's definitely setting them

And 2D8 is definitely in the array

Printing also confirms that the material is set

All that leaves is the potential that the scene capture 2D is failing? But that makes no sense

Either that or assigning "Final Color" to the texture is somehow not doing what I think it's meant to

(IE assigning Final Color in here to the texture)

I've had an idea, one sec

[trim matrix]

What is that for ? Looks pretty cool?

[hallow gate]

Omg

I figured it out

Haha

[hallow gate]

Parameter doesn't include the parameter of the original freaking material, instead it points to a CUSTOM parameter in the dang material that I had to make

So I created a texture sample parameter and assigned it to that instead of directly to final colour and BOOM, fixed

https://tenor.com/view/bartlett-west-wing-head-desk-gif-6012433

[solar needle]

i need help how cast properly work

[hallow gate]

Just taking photos, haha

[solar needle]

😢 just 1 more step and my project complete

[hallow gate]

https://www.youtube.com/watch?v=OQEXUO0FQQk

He has a good series on casting

That's how I learned

[solar needle]

is it cover on AI ?

[hallow gate]

Right now that's casting to a widget, I can get you the right one, one sec

https://forums.unrealengine.com/t/cast-from-player-character-bp-to-ai-character-bp/410962

There, that'll show you what to do

[solar needle]

let me check hope it works

i dont get it

[thin panther]

Casting is basically checking if something is the right type, it takes a reference, sees if it is the right type, and if it is guves you the specific reference

[solar needle]

basically it referencing to other blueprint

[thin panther]

Say i have a general actor reference and want see if it is a door. I cast to my door using that reference, and if it is a door, i can then use my now soecific reference to access the door

[gentle urchin]

a cast doesnt reference another actor, if thats what you ment

[thin panther]

Its a type check

[gentle urchin]

^exactly

[thin panther]

Is this pointer what i am expecting it to be

Thats all

The object on a cast node is where you put your reference to check

[solar needle]

holy shit its working

i just need for each loop part

[gentle urchin]

Oh noes

[solar needle]

thanks for help

[gentle urchin]

I smell GetAllActorsOfclass

[solar needle]

yes

is that a problem ?

[hallow gate]

I use "Get Actor of Class" not "All" lol

Helps that I only spawn one actor to be fair

[gentle urchin]

How do you know which one lol

[hallow gate]

If there is only one, you only need one!

😄

[gentle urchin]

yeah if its only ever one, but even then there's usually a better way 😛

[rich jungle]

I'm having some really weird things happening in unreal to me right now. Classes from other projects appeared briefly, invalid data types and invisible variables. A rectangle with a squashed square in it displaying it as a full square.

is there any way to repair unreal?

[solar needle]

cant find get actor of class

[hallow gate]

Oh I've heard of passing variables too and from different blueprints but right now I'm settled and happy working in this way

If I ever work on a bigger game with a larger scope and more repeated actors I'll definitely advance my knowledge in that field

[gentle urchin]

It's the dirty way 😛

[hallow gate]

So's the fact I'm not using functions, sue me!

XD

[gentle urchin]

can often work despite being dirty

[hallow gate]

About 3/4 of this should be in functions

Melt your eyes at my desperation to avoid them!

[gentle urchin]

You are, just not with returns 😄

[rich jungle]

I figure there's a reason why you're immediately told not to use it in the official documentation because it's performance heavy >>

[hallow gate]

Well I meant in the clean function area haha

[rich jungle]

it probably runs through every actor you have checking its class

[hallow gate]

Would it not just go to that actor class and grab it's spawn?

Oh

[gentle urchin]

^ along those lines yepp

[hallow gate]

Wait I see what you mean

[rich jungle]

that wouldn't be a performance issue

and it's noted as being really bad for that

[solar needle]

my simplified blueprint

[hallow gate]

As long as I don't have a million actors it should be fine

[rich jungle]

so yeah, it's a really dangerous feature to rely on

[solar needle]

at least it work as intended

[rich jungle]

make a comment on it about this?

if you run into performance issues later so you'll remember this convo :)

[solar needle]

yes

[hallow gate]

Hehe, if I run into performance issues later I'll swallow my pride and eat the days changing every cast

I promise

[rich jungle]

https://tenor.com/view/el-cangrejo-pendejo-sad-mr-krabs-gif-12197251

that day I will get my tiny violin just for you

XD

[hallow gate]

Out of curiosity, you got any reading materials I can look at to learn how to do it the other way?

Just for future learning

[rich jungle]

on how to reference other actors directly?

[gentle urchin]

First question would be why do you need the reference?

like, what's the context

[hallow gate]

Yeah

[rich jungle]

you know how to expose variables on spawn?

[hallow gate]

Referencing them to access their widgets and their functions

[rich jungle]

lets say you make a widget

[rich jungle]

make a "HUD" variable and expose it on spawn

[gentle urchin]

but from where? Usually one doesnt want outside actors to meddle with internal functionality, or widget they do not "own"

[rich jungle]

then when you're creating it, you slot in your HUD object

and you can now reference it inside your widget

[hallow gate]

From my drone to the drone control panel

[hallow gate]

Ahh

Interesting

[rich jungle]

pretty useful for a lot of things actually

play around with it :)

like telling a created actor what colour it is when you're spawning it

[hallow gate]

On a different project on a different day I definitely will

[rich jungle]

etc

^_^

for sure

[hallow gate]

This time around I'm just re-learning all my forgotten C++ knowledge haha

And learning how to do basic things in UE4

I know what I want to do, but translating that into UE4 jargon can be tough

[gentle urchin]

Is this inside the Drone blueprint?

[hallow gate]

Yeah

[rich jungle]

aye, I've learned coding elsewhere trying to learn BPs now

and it's like

"but what do I google?"

took me a bloody hour to figure out if statements were called branches

[gentle urchin]

xD

could've just asked!

[hallow gate]

This was today

[rich jungle]

that was before I was in this discord

I totally would have

[hallow gate]

Trying to figure out this render issue

[rich jungle]

speaking of asking!

@gentle urchin you are my victim

my unreal's been acting really weird

like an actor I spawn that has a squashed square in it as a component right?

it spawns the square full size

even though I've done spawn actors like this before

I feel like my install got corrupted somehow

because this is super strange

[gentle urchin]

sounds unlikely

[rich jungle]

is there any way to repair my instal?

hm

you think so?

[gentle urchin]

yeah

squashed, do you mean scaled ?

you can always verify the engine install,

[gentle urchin]

But I bet it's not where the problem lives

[rich jungle]

see how the thumbnail and the rendering make it full size

[gentle urchin]

right, so the mesh is the root

[rich jungle]

but if you look at the viewport it shows it squashed

[gentle urchin]

now show how you spawn it

[rich jungle]

just with a blank transform

[gentle urchin]

right

[rich jungle]

that determines XY

ok

[gentle urchin]

so it'll be the scale that its spawned with

[rich jungle]

ahhhhh

ok

I've had other weirdness

like classes from other projects showing up

and ghost variables I can't see or interact with

but this at least has a reason

thanks :D

[gentle urchin]

ghost variables?

if you cant see them, how do you know about them

[rich jungle]

"you can't compile, var_0 has an invalid type"

[gentle urchin]

ah

[rich jungle]

but var_0 doesn't exist in the vars tab

[teal lagoon]

Anyone around who can help me understand why my crossfader isn't firing?

[rich jungle]

and restarting unreal unreal deleted it

[gentle urchin]

are you by any chance doing c++ aswell? and HotReload? 😄

[rich jungle]

no, plugin free unreal with no C++

[gentle urchin]

version?

[rich jungle]

speaking of C++ my friend told me you have to restart unreal every time you edit C++ files

is that true?

[gentle urchin]

header files,

not cpp files

[rich jungle]

5.0.0

[gentle urchin]

bleeding edge I see

😄

update to 5.0.1

[rich jungle]

erm, I'm in the epic stor thing and I can't get the right click menu you have

nor do I see an update option

[gentle urchin]

o.O

[rich jungle]

ah there we go, not the top right button it's in the library section

erm

alright well I'm updating and verifying now

thanks :)

[low marlin]

how do i create scene captures using a bp?

[hallow gate]

Add component by class?

[gritty elm]

how this works?

I want to get path from one actor to another actor.

but it return velocity. Not location path?

[hallow gate]

Well yeah, you're getting the velocity

Not the path

[gritty elm]

but i need path

[hallow gate]

If you want the direction you'll want to "Get look at location"

[gritty elm]

Like array of world location

[hallow gate]

And it'll tell you the rotation from A to look at B

Array of world location?

Eh?

Explain what you want to do in layman's terms

[mild pine]

Hey guys, so I've got a parent class which sets an AI to block attacks if a random bool weight is true. Then, in each child of that actor I've got like... a sword user, a shield user, etc. Essentially the shield user's variable should be bigger as he's more prone to block, but when I set the value in each child its overriding eachother's variables. How can I prevent this? Im setting the defense mechanic in the parent because it's triggered by an anim BP, in which case I'd prefer not casting to every type of AI 😅
https://i.imgur.com/7yATxVa.png

[gritty elm]

@hallow gate does this works? I'm running this on tick

[mild pine]

Here's how I've set it up in the child: https://i.imgur.com/mz7N7QF.png

[hallow gate]

Not a doggone clue I'm afraid, haha

[gritty elm]

so what method should be

I want to move my projectile to one location to other location

[blissful inlet]

Hello ! I have this problem where one of my nodes in a blueprint made my game crash. It made it so that I cant open the blueprint anymore, and so i cannot correct what made the game crash. Do any of you have any idea on how to retreive the contents of this blueprint, or how to fix the crash. I know where the problem is, i juste cant access it. Thanks !

I'm not sure where else to post that question. Sorry if thats not the right channel

[cursive cosmos]

what would i plug in this? its casting to a widget

[thin panther]

A reference to the widget

[cursive cosmos]

like what?

[thin panther]

.

[cursive cosmos]

that doesnt help

[thin panther]

It does

You need to plug in a reference to the widget you wanna interact with

Casting is just checking if its the right tye

[cursive cosmos]

i done it another way

[thin panther]

How

[blissful inlet]

oof, wasn't setup, i'll do it. thanks

[thin panther]

Ideally for something like that you save a ref when you make the thing then you can access it easily

[tight pollen]

any idea for a smooth transition from animation to ragdoll? when the character dies, it turns on the animations and after a while it goes to ragdoll, but this transition looks poor, there is such a cut

someone can help?

[gritty elm]

how to predict projectile path from one actor to another actor location?

[whole dune]

How can i make my spline procedural like this? so i can change he position of the yellow thing after a spline point if thats possible?

would help a lot!

im thinking about having a variable that sets the visibility i just dont know how to do it after a spline point

[versed sun]

Check out these nodes

[gritty elm]

should i run these function on tick?

i have projectile. and i want to move my projectile from spawned location to target

missile

[versed sun]

only if you were adjusting the points around/ Aiming

Im playing with it now

[gritty elm]

how to move projectile from one location to another target?

like spawn missile and it will move in trajectory to target location

[whole dune]

Id say you do it with a lerp. A is spawn location, B is target, Alpha is a timeline

[gritty elm]

it will not work

[whole dune]

But it has no physics

[gritty elm]

it is custom arc.

[whole dune]

Is it more like a nuke or artillery?

[gritty elm]

like this

[whole dune]

just copy the first person projectile code

[gritty elm]

you can imagine it is missile

which move from one location to target. but in arc

first person projectile is not arc

it is just projectile which spawn.

[whole dune]

So you aim, and then it calculates the angle which it has to shoot?

[gritty elm]

it doesn't have to be aim. only spawn and then move to target

like mentioned above

this causing fps drop to 5-10

are all parameters correct?. or any thing need to change @whole dune

[whole dune]

I didnt suggest that

[gritty elm]

so what approach will be?

[versed sun]

if its not a moving target (Point B) , just fire it one time and save the data

[gritty elm]

it is moving and it should be move in trajectory

in other words i want to find path from one actor to other actor

@whole dune ok I tested. But it doesn't works.

sphere is only draw at start actor location. also it lag too much

[waxen gull]

@gritty elm What exactly do you want to do ?

you want to make a projectile hit your target right ?

[gritty elm]

Yes

[waxen gull]

so

[gritty elm]

I have missile. The missile should move in parabola

[gritty elm]

like this

[waxen gull]

yea

[gritty elm]

from spawn location to target location.

but in curve. not just lerp location to target. which is unrealistic

exactly like this. but curve can be modified

you can imagine it is missile simulation

[spark steppe]

use a sine?

[waxen gull]

its not a sine

its a Quadratic Qquation

[gritty elm]

yes you can imagine it is sine.

but it should not look exactly like curve

i just gave an idea. it should not straight. it should be curved

like spawn missile and it attack to target

[waxen gull]

yea

its an Quadratic Equation

basically how gravity works in math

[gritty elm]

#blueprint message someone give this suggestion.

[waxen gull]

but i cannot remember how it is working anymore

[gritty elm]

how it will works?

@spark steppe yes correct. do you have any idea?

[waxen gull]

basically you get the vector from your start and target

get the distance

divide it by two

[gritty elm]

to get mid point, right?

[waxen gull]

i dont know how it works

[spark steppe]

the mid point is 1....

[waxen gull]

anymore

[spark steppe]

at 0.5 timespan, you know that already

[gritty elm]

how sine can be used in locations?

any example?

[spark steppe]

you could drive a lerp vector with the result

[waxen gull]

sine is for circle

[icy dragon]

Or multiply the vector with the parabolic curve

Which is not actually sine, but still

[spark steppe]

yea a timeline and that curve as actual unreal curve would do, too

[gritty elm]

basic starting point

[spark steppe]

you can also make vector curves in UE

and add that curve value as offset

probably the easiest way^

[icy dragon]

I suppose he wants it completely mathematically

[spark steppe]

thats mathematically 😛

[gritty elm]

yes. it should be dynamically. since curve is variable

[icy dragon]

As in no authoring curves in curve asset or timeline

[gritty elm]

does timeline curve can be modified at runtime?

[icy dragon]

I don't think so

[gritty elm]

so what is the other way

[icy dragon]

Though what was the equation for parabolic curve again? y = x²?

My math is kinda rusty on that one lol

[gritty elm]

anyone can suggest solution?

[gentle parcel]

Hello folks. I'm creating a little Walk/Run/Sprint with stamina ability for Lyra and I wanted to reduce the number of nodes to use. Basically I assigned 3 boolean variables, one per status and I've tried to use array because I thought it was the best practice for that. Unfortunately I'm not sure I'm doing it correctly. I dunno if I explained it well, I hoped in some help to figure out how I can do it.

Basically I wanted to have a single node where, in each status, I check the one I need.

[icy dragon]

I'm sure somebody can come up with better formula lol
But I'm thinking about tracing through X axis to get the parabolic curves

Also for context, a represent how wide the parabolic curve is, and b represent the height

[random plaza]

question, what does this error mean?

[icy dragon]

Are you using bind functions?

[random plaza]

yeah, and i just imported my ue4 project to ue5

[icy dragon]

Yeah, don't use bind functions in widgets.

[random plaza]

bindings arent good?

i had no idea they werent a best practice

[icy dragon]

They're bad.

[random plaza]

so i should use on tick instead?

[icy dragon]

Bindings are not only inefficient, also kind of chewing through performance

[icy dragon]

Update the widget only when it's necessary to do so

e.g. event on damaged for health bars

[waxen gull]

@gritty elm https://www.desmos.com/calculator/pfdwlq5qht?lang=de

The Formula is Y = X² + XB, The B Value is the Distance between your Start and End

just try out increasing the B Value

Actually Y = ax² + abx

B is the Distance between your Start and End Position

[gritty elm]

and what is a and c

[waxen gull]

A Is kind of the Angle you want to fire your Missle

[gritty elm]

and c?

[waxen gull]

c is not important

[icy dragon]

poor c, being neglected like that

[zealous moth]

@icy dragon y = ax^2 + bx + c. Typical parabola

[waxen gull]

he got a nother usage for it

This if the Formula i came out with

y=ax^{2}+abx

[gritty elm]

what x will be

[zealous moth]

???

[waxen gull]

The position on the X Axis

[zealous moth]

Guys is is high-school functions... don't reinvent the wheel...

[waxen gull]

and Y is the position on the Y Axis

[icy dragon]

Well, the forward distance

[icy dragon]

I know you get the best grade in math at school 😔

[zealous moth]

I tutored this stuff for 15 years!!!!!!!!

😫

[icy dragon]

What the frick

[zealous moth]

Good money, but that's besides the point

[icy dragon]

I'll sleep in your class then

Consider free camping

[gritty elm]

well. I am making my own solution

'

got this trajectory

[gentle parcel]

I know you guys are dealing with high level stuff {Maths has never been my thing 😅 } but I hoped somebody could help me with those basic stuff like boolean arrays for the problem I mentioned before

[icy dragon]

Bools are boring :P
(jk)

[gentle parcel]

I know! 😅

[wet surge]

hello, It's been a long time that I've been searching about this topic and I dont seem to find any information. Could I create my own landscape based on random noise maps at runtime?, I also want to deform them but if i can create it i could deform it. thanks in advance

[icy dragon]

You might want to look into Voxel Plugin to have some runtime landscape manipulation

WPO on static mesh won't affect collisions, so it's a bust for your purpose

[gentle parcel]

Basically this is what I'm trying to do

[wet surge]

There's no other way on doing it?. I mean i see it as a very practical solution but i would like to do it myself, because i want to learn how it done and also don't rely on plugins as much as i can

[icy dragon]

Those bools could be condensed into enum, most likely you won't have more than one of them active at the same time

[icy dragon]

Procedural Meshes, if you want to look at it, but optimisation is also on your own for that.

[gentle parcel]

it sounds like what I was looking for...

but I've never worked with them before

[wet surge]

So what i thought about that is that i would need to create my own metods to assing each vertice to the noise texture right?

[wet surge]

For what i understand they are like arrays i the way that you can select from a list the element that you want

[icy dragon]

Enum is just named integer, not an array.

[wet surge]

Oh ok, i was considering them as arrays that return the element index thanks for explanation

[gentle parcel]

I 've tried with arrays because it looked like the best way, from my little understanding how they work

[icy dragon]

Array doesn't make sense in that context

[gentle parcel]

I see. I used it because I saw it gave me the chance of making a list of different variables where I could check/uncheck them depending on the walk speed I need

I'm totally stuck there

[serene bramble]

So I made my settings menu allow you to change between fullscreen/windowed fullscreen and windowed however it seems regardless the resolution and window size won't change. How do I also change those depending? (in fullscreen/windowed fullscreen, set to screen max res, in windowed, set to something like 720p)

[waxen gull]

@gritty elm I got a solution PM me

i made this little Test Actor

working as intended

[gritty elm]

you are great

[waxen gull]

i mean

its not perfect yet

[gritty elm]

in video how your are testing with two objects?

[waxen gull]

with variables

on a vector you can check Instance Editable and then show 3D Widget

thats how i got those gizmos

you can even move them around if youre not setting them to a constant value in construction script

[gritty elm]

for example i want to use between two actors location

like target 1 and target 2

[waxen gull]

B is the Distance between those objects

you get a directional vector to your Target by End Position - Start Position

[gritty elm]

x will be location of of source or destination?

[limpid bronze]

How do you detect when a flipbook is on a certain frame?

like I'm trying to make it so that the enemy damages the player on a specific frame of their attack animation

like I tried this to test when it was a specific frame

[solemn crescent]

I’m having trouble with Set <variable> with an editor widget.

New to BP.

Any ideas on what I may be messing up?

[foggy escarp]

With little context it could be anything.

[limpid bronze]

fixed it

[hexed barn]

Hi does anyone can redirect me to a tutorial of some sort about a basic ai for a 2d platform for a monster moving left and right and don't fall from the platform? thanks in advance

[tawdry surge]

Easiest way is to do a linetrace down/forward. Once it no longer hits the platform, you reached the edge and it's time to turn around

[hexed barn]

well I made a pawn but didn't manage to make him move for now that's the problem, tho your message will help me once I figure out why it don't want to move

[sudden nimbus]

If you use the built-in navigation system (NavMesh, https://docs.unrealengine.com/4.26/en-US/API/Runtime/NavigationSystem/NavMesh/), then you have to define what surfaces will be navigable anyway. Using NavMesh, you could take some random points around the actor and use ProjectPointToNavigation (https://docs.unrealengine.com/5.0/en-US/BlueprintAPI/AI/Navigation/ProjectPointToNavigation/) to see if there's a suitable point nearby it that you could go to. You'd then use "AI Move To" or feed the selected point in as a Blackboard value to a BehaviorTree, where you'd use "Move To" as part of your overall logic

moving left and right and don't fall from the platform
If you just want it to "scan" left and right (ie move back and forth), then you can avoid any of that anyway, just define how far left and right you want it to go, and move the actor directly. Eventually you'd want to avoid it, but Tick will run your logic every frame. Use the Delta Time that Tick gives you to make the motion independent of framerate.
^^ This is a really simple approach, but you get a lot of performance and power out of doing that same thing using NavMesh and MoveTo

[tawdry surge]

That is way overkill.
Just "add movement input" either positive or negative along X axis.
Do your linetrace and be done with it

[sudden nimbus]

Yeah probably 🙂

Not sure what line trace you would need though in that case

[tawdry surge]

Down and forward so that it hits the ground infront of the ai pawn. That way you can turn around if it stops hitting or hits an edge with a normal not pointing up and flip the movement direction

[sudden nimbus]

Guess it depends on how the 2D scene is composed, assuming that's what they meant.

[tawdry surge]

"basic ai for a 2d platform for a monster moving left and right and don't fall from the platform"
Whether it reaches a wall or a ledge the linetrace would handle turning the ai around

[runic parrot]

Hi everybody! one question, does anyone know how to mesh all the static meshes of this actors into one actor?

(Each square is one actor with a mesh, i want to end up with one actor that contains all the meshes).

[pallid turret]

I have a widget component attached above my characters head. My game is a local multiplayer and everything works fine. However, the widget components for each player are only visible on the first screen. Every character has a widget component above them from that camera on that screen, however you cannot see the widget components on all the other screens. Does anyone know of a solution?

[dark crow]

Select them all then Tools -> Merge Actors

[runic parrot]

I want to do this at runtime, not in editor.

[dark crow]

Probs you doing something with GetPlayerCharacter0 or so, so only the first player

[pallid turret]

not quite, you can see the widget above every players head, just on the first screen. I think the issue has to do with maybe if I manually add a widget to the actor it refers to playercontroller0, but I can't see a setting to change it. I figured that as I replicate my character actor it should replicate the attached widget as well but I guess that is not the case

[dark crow]

Then you would probs need custom edits or generate your logic with Procedural Mesh system or such

[dark crow]

Depends how you adding and all, are you running Listen or Dedicated for the test?

[pallid turret]

its local splitscreen multiplayer so I don't think that matters

[dark crow]

Splitscreen? Cause if not it still matters

[pallid turret]

I was just running as standalone

[dark crow]

Huh, then how are you testing it with other players

[pallid turret]

it is local splitscreen multiplayer. There is no networking players simply play using different player controllers on the same local device.

[dark crow]

Not very experienced with splitscreen, but I imagine you would just need to locally add it to every controller then
Fill the info for each player

[teal gull]

how do I set a curve to loop like this?

[runic parrot]

Red, green or blue?

[quiet shuttle]

For some reason my physics actors aren't responding to AddActorWorldOffset, any ideas why they aren't moving?

[faint pasture]

You're gonna want ISM/HISM

[teal gull]

all of them, i want them to infinitely loop

[dark crow]

Yeah, but that's not merging per se, it's grouping same SM together, basically Instancing them
What I understood is that he wants a system to actually merge different SM to form a unique mesh

Surely ISM/HISM is already a step up from individual actors indeed tho

[heady jay]

How can I get relative component velocity? For example, if I'm in VR, I want to see how fast my hands are moving without taking into account my character movement

[runic parrot]

i was changing it to just use a dic of static meshes and add them without spawning the actors, but let me check those first.

Also, does anyone know why my variable of type "static mesh Reference" brings me a full list of static meshes.

But if i change it to "Static mesh soft reference" i get none?

[serene bramble]

How would I get this node from a key input?

Output is Input Action Key Mapping Structure

[worn kernel]

hey i was wondering if anyone could help me with a problem im cant wrap my head around.

[spark steppe]

you should use kg 😛

instead of bananas per square feet

[worn kernel]

Im trying to add percentages to items so that you can check its durability, the problem is that the system clumps up the main number of items you have.

[spark steppe]

then don't clumb items which have durability

[worn kernel]

the problem im having is that im having trouble storing the information for those that are pristine and those that are used. Since the the inventory reads the main array for the number of items you have.

[runic parrot]

your inventory system need changes if you want to include that functionality.

you need to add some "Quantity" and "Is Stackeable" flags to your items and stack them or create individual stacks depending on that.

after that you can do a "for each" on your inventory items and check quantity to check how many items on inventory

or just treat stacks as 1

[whole dune]

How can I make a spline vary after a spline point? I want to have multiple objects but each one has a variable to set its visibility… but can I change that after a specific spline point? Just like the yellow bars on the rail so i can set their side.. Help would be greatly appreciated

[icy dragon]

Ew imperial units

[serene bramble]

Still wondering if anyone knows

[dawn gazelle]

That's just a structure variable that's split or accessed using a "break"

[serene bramble]

Ahh thank you :)

[tough yoke]

yo, anyone know why my begin overlap event script isnt showing in child blueprint?

[trim matrix]

is it possible to destroy all the point light of the current level by using a blueprint function?

[prisma tree]

I am trying to push a sound mix modifier while pressing down a button, and then when release return to default. But this is not working, what am I doing wrong? it doesnt work if I skip the clear node either...

Wait sorry, my bad. I had the Soundmix duration be posetive and needed to be negative....

[elfin wolf]

yep this will do it

[trim matrix]

this doesnt work 😦
i made a loop and i added those point lights with the node "Add Point Light Component"

[gentle urchin]

Oh

Components

You could save their refs and destroy them when needed :p

The destroy node is simply destroyComponent instead of Actor

[trim matrix]

i tried this but on the construction script the array return null

[gentle urchin]

Why have it in the construvtion script ?

You can also make a blutility for this if you want it at editor time and not runtime

[bleak rock]

Hey guys i am currently having a hard time figuring out how i can own the rifle that i spawn to my player. for some reason only the server is allowed to fire bullets from it. This is how i spawn my rifle:

Now when firing i have a function that calls the server and spawns a projectile however right now only the server actually spawns the projectile:

It seems that my client is not allowed to call the "run on server" event can anyone see what ive done wrong?

[gentle urchin]

#multiplayer

[trim matrix]

what is a blutility?

[gentle urchin]

Just a blueprint designed to be used in editor, as a utility tool :)

For things like destroying a set of actors, adjusting all lights in the scene etc etc

[trim matrix]

oh okay, thanks!

[fleet cedar]

What do you guys name Blueprints in your scene if you're re-using them a lot, like BP_Collectable, do you rename each use based on the collectable type?

[faint pasture]

I don't use the BP naming but I do something like
Pickup_Base
Pickup_Health
Pickup_Speed

etc.

[thorny rover]

Hi! Is there a way to get a list or reference to all Sub-Levels attached to Persistent Level?

[obtuse herald]

Not in blueprints afaik

[tame pecan]

No.

I wrote this function to get all levels to blueprints ```TArray<ULevelStreaming*> UOutpostBlueprintExtension::GetAllTiles(UObject* Outer)
{
if (Outer)
{
if (UWorld* World = Outer->GetWorld())
{
if (World->WorldComposition)
{
return Outer->GetWorld()->WorldComposition->TilesStreaming;
}
}
}

return  TArray<ULevelStreaming*>();

}

[trim matrix]

Anyone know how I can play Facial Animation on top of a montage?

[left carbon]

Hi! I remember I was able to merge blueprints before, but now it seems I'm not able to do so.. When Blueprint is in conflict, Content Browser does not even show it.
Is it something to do with latest UE versions (I use 4.26) or just git/lfs things?

[trim matrix]

How did u merge blueprints before 0o? I thought U can only override them

[left carbon]

I simply merge two branches, and if Blueprint was in conflict, I open up Editor, open the blueprint, then File > Merge

But now if I merge, blueprint is 1kb in size and not visible in Editor. Maybe merging blueprints with LFS just not allowed

Because I'm not sure if I used LFS on old projects, where I successfully merged blueprints

[fleet cedar]

What's the simplest / cleanest way to limit this rotation? Just a clamp?

[cyan bone]

@mental trellis I was able to generate the procedural mesh yesterday inspired on your algorithm. That will help me generate a custom collision. However the top part of the mesh still remains unconvered. Is that normal? Its the blue part in the image: Its invisible in my project. I guess i need to fill that with triangles too, right?

So maybe get the center, and then draw triangles towards the center?

[mental trellis]

The top part you make with 0+count, 1+count, 2+count / 0+count, 2+count, 3+count / 0+count, 3+count, 4+count etc

[cyan bone]

/ divided ?

[mental trellis]

Just a separator.

[cyan bone]

oh i see. sorry. i see

[mental trellis]

It's hard to make those stand out properly.

[prisma tree]

Im creating some sound effects and I want them to be in stereo (ie spatialization) but it then 100% so that when the left ear is pointing at the sound origin I hear 0% in the right ear. This does not feel natural for me and I would like some audio (20-70% ish) to also be heard in my right ear. But I cannot make this happen! I really thought I would be able to do it in the sound settings here:
Anyone has an idea?

[copper bison]

Would anyone have a bare minimum example of Input Touch Enter , Leave , Begin , End ? Im trying out on a blank project and was expecing the Input Enter to be similar to Mouse Enter event, but when inspecting the values I feel like the input is not working same way .. just cant put my finger on it. Unless someone has used it and could explain it to a simpleton like me 😄

[mental trellis]

just cant put my finger on it
😂

[copper bison]

😉 clever use of words haha

im testing this with Mouse with settings Mouse as Touch input and in the default settings to allow hover over 🙂

Input Touch , pressed , released , moved work fine , keyboard and mouse events work i can see my silly logs 🙂 just not really getting anywhere with Touch Enter , Exit , Begin and End

and UE documentation isnt really helping 🙂

Also putting a breakpoint on it doesnt seem to trigger 🙂 but inspecing the finger index value i see it says Touch 1 so there should be something 😄 now i just feel like its a checkbox in settings or im not using it correctly

Ah nvm now i got it to trigger 😄 seems i had a invisible actor on my set i forgot to delete it triggered the OnEnter

[prime fulcrum]

Can someone help me with Something?

I nead help with Procedural Generation

So if anyone knows anything ab that. Please help me out

[gentle urchin]

Kinda broad concept

Not a 5 minute talk

[prime fulcrum]

i know

and i cant find any good tutorials

[gentle urchin]

There are plenty🤔

[prime fulcrum]

yeah, but i cant find the good ones

can you send me a link with a good one?

[gentle urchin]

'Good' depends on your definition

What exavtly are you proc generatingM

World? Landscape?

[prime fulcrum]

I want to create Infinity Backrooms you know?

[gentle urchin]

Sounds like proc rooms is a start

[prime fulcrum]

alright ill take a look at it Thank you

[icy dragon]

Additive animations or layered blend per bone

[trim matrix]

how can i make a jumpscare that when player overlap the enemy then it makes the player face the monster?

[prime fulcrum]

how can i get this one?

its an actor he says

https://youtu.be/XgIDH42RHWQ?t=30

Oops

im very dumb xD

fixed

[gentle urchin]

If you've just started, id suggest going more basic ^^

[prime fulcrum]

yeah i was just stupid lmfao

[icy dragon]

Well, backrooms is like current year's kids horror thing

Aside from something like Poppy Playtime and alike

[trim matrix]

lmao i'm trying to do a backroom game too

[stable dove]

Any ideas why im getting this error? everything is working perfectly in game so im unsure why its happening. Any help would be hugely appreciated!

[gentle urchin]

Never even heard about it. Am I getting old lol

[icy dragon]

Maybe lol
At least I'm an old person who looks at YT every so often

[ancient topaz]

Good afternoon!
Can you please tell me if there is any way to get information from Pawn sensing, that the character lost sight of the player?

[gentle urchin]

If only there were enough hours in a day, i'd do that too

[icy dragon]

Well, I've seen it even though I mostly watch drumming and animation videos lol

[mossy summit]

Im going to try it but I thought it would be worth asking can you give post processing volumes equal priority so they blend equally?

[astral epoch]

If I have an array of set length, how can I check if certain elements are null data?
IsValid and == operations don't seem to be working.

Or at least treating null elements as valid things same as if they had data populating them.

[fleet cedar]

Hello, I'm trying to clamp my camera's rotation but I don't know how to calculate an angle limit when it flips on the poles like this

between -180 and 180

[astral epoch]

Never mind, figured it out. Was using struct data to spawn characters (resulting characters were populating the array) and forgot to put a check to make sure that the struct itself was valid, so it was always spawning characters even when it shouldn't.

[trim matrix]

My issue is I'm playing a montage already but I also need another montage on top of it. Apparently only one montage can be active at a time so it won't help my case. Layered blend per bone on 2 montages also doesn't work 😭

Someone said state machine, but how would that fare for 100 animations, it's gonna be really bulky

[prime fulcrum]

How can i get one like this?

If i create one myself i cant get the "Target"

I get this