blueprint

[faint pasture]

Every time you hit those nodes you'll re-get run speed

Do it like this

[modest monolith]

On the left you can see the mov speed variable amount

value*

[faint pasture]

You intend for all 3 speeds to be the same right?

[trim matrix]

Store any item identifiers as Name types

[modest monolith]

Yes

[trim matrix]

defintly dont store them as Text types, or String types

[faint pasture]

You're doing

RunSpeed = RunSpeed + 500
WalkSPeed = RunSpeed + 500

Which means that if you start with 1000 for both, you'll end up with RunSpeed = 1500 and WalkSpeed = 2000

[modest monolith]

Run speed is the variable, max walk speed is my actual run speed and max walk speed crouched is the speed when I slide down with the body to dodge

[faint pasture]

After setting RunSpeed, you are using the NEW Runspeed to set walk speed and crouched speed, so it's going even higher

[summer jetty]

Ok, but the one that is working correctly is the same type as the one that isn’t. So I don’t think it will fix the issue?

[modest monolith]

Lol my senpai made this code

weird that he made a mistake that big

[modest monolith]

hMM

[faint pasture]

Just don't play Telephone with your identifiers. Just use one data type and stick with it. Whatever the data table wants as a key is a good bet.

[trim matrix]

Im not exactly sure if that is whats causing the problem. Either way, everything after GetDataTableRow is perfect.

So the issue lies before that

[modest monolith]

How could I fix it ?

[faint pasture]

#blueprint message

[modest monolith]

I love you! Such a clean coding!

[faint pasture]

This is what smells to me

[trim matrix]

[modest monolith]

I was screwing up everything for a speed boost lol

Thank you!!!

[trim matrix]

Also this is completly pointless

you can just plug the name value directly into GetDataTableRow

that should be unrelated the error, but just letting you know

[summer jetty]

That finds the row name, not the item name though. The item name has spaces, the row name is the same but without them.

The first bit is just checking if there’s anything in that variable. It changes depending on what the cursor is hovering over (if anything).

[trim matrix]

Do not store the item name, store the item identifier.

Think of it this way, the item identifer can get the item name

Item ID -> item name

it cannot go the other way around

[summer jetty]

Ok

[trim matrix]

what if the ID is apple_01

and the name is shiny apple

well that doesnt work now

Dont code your system to rely on the Item name being the ID

those are seperate things

[summer jetty]

The row name is always exactly the same as the item name, just without spaces.

Ok, I can switch them around.

[trim matrix]

While there is a good likelyhood that this is causing the error, there is just as much of a chance that this has nothing todo with the error. Either way, you should really switch them around yes. Always store the ID.

since the ID acts as the key to all other information

[summer jetty]

Ok

But again, if that’s why this variable is failing, shouldn’t the other one also fail for the same reason?

[trim matrix]

I dont know

We are not sure anything about why the error is happening

[wise tide]

Making a settings menu and I want it to update live as the user changes some of the settings (such as FOV).

The settings can be accessed from in-game and the main menu, so I cast to the main menu gamemode to change the FOV there.

How can I cast to the player character to update their FOV camera live? This is from a Settings UMG object

[trim matrix]

Just that in the picture you sent, if there was an error, that spot would be it

This code is error prone as well. Even if this is not the error in this specific case, it will cause errors in the future.

So make sure to fix it

[summer jetty]

Ok, well thanks for having a look. I’ll see if changing that fixes things 👍

[trim matrix]

If it does not fix this specific error, come back and we can look at other parts of your code.

[summer jetty]

Ok, will do. Cheers!

[trim matrix]

Plug GetPlayerPawn into the Object of CastToThirdPersonBP

[wise tide]

ty

[modest monolith]

Do you know a way to make the new animation play over the old one ?

Like let's say i'm sliding but I interupt the slide and I jum

Jump

How can I do jump animation without keep sliding in air?

is that possible only with anim montages ?

[faint pasture]

Sounds like a state machine

Sliding, falling, running are your states

[lusty shard]

why do some BPIs all for an object reference or message input and others do not?

both are implemented in their classes

[elfin inlet]

never seen this before

[elfin inlet]

oh its just an interface ref... nvm

[trim matrix]

The message version takes in any object, checks if the interface in implemented, and attempts to run the interface function on it. The BPI_Abilities interface version directly calls that function on the object.

[lusty shard]

I dont have an option with an object reference input, on the Rot Ability.

How to make it sure the yellow input is blue like the other one?

dont quite understand it but I do want them to be the same. I implemented them both the same way

[trim matrix]

im sorry I got my words mixed up before

[trim matrix]

does that make more sense?
The BPI_Abilities interface version directly calls that function on the object.

oml xD

but yea

[lusty shard]

i have the same option for both

[trim matrix]

Yes

[lusty shard]

but for some reason, one is an object reference

which I want

for both lol

[trim matrix]

Lets think of them as the message version, and the direct version ok?

You will always have the option to call the message version.

[lusty shard]

but i dont have the message option here... for the pew abilities

[trim matrix]

It doesnt not matter what object you drag off of, the option to call the message version will always be there. This is because the message version will just attempt to run the function on any object you plug into it.

[split ginkgo]

How can I add an instance to a instanced static mesh without it colliding with other instances?

[trim matrix]

In order to call the direct version you must drag off a reference type that actual implements the function.

[lusty shard]

I am and its not giving me a message option

[trim matrix]

Then thats better, just call the direct version.

The direct version is the best option.

[lusty shard]

but you said id always have the message option so im confused lol

[trim matrix]

well in most all cases you should.

And im pretty sure you did also?

yes looking at those screenshots, I see both options

[lusty shard]

i dont have the message option for the pew abilities reference

and i want to know why. I think i may of had a cast to node for the Rot reference which gave me the message option?

[trim matrix]

that is the message version

the top is the direct version

You do have it

your not using it, but the option is there

[lusty shard]

this is the optiion you circled in green

[trim matrix]

And the other option gets the same node?

[lusty shard]

yea and thats why im confused lol

[trim matrix]

If so, then unreal is smart and automaticly turns that message version into the direct version.

[lusty shard]

if i turn context sensitivity off, I do see a (message) option

[trim matrix]

Ah i see, thats what was confusing me. They are both in the BPI Abilites interface catagory then

So unreal doesnt even show you the message version if the reference you are dragging off of implements the function.

Either way just use the direct version.

but it still shows the inteface catagory

[lusty shard]

lol ok can you tell me what the difference is? Why is one direct and the other one less direct?

[trim matrix]

very good design unreal

Just to make it clear, these are the same exact thing. Unreal just displays it twice.

[lusty shard]

to me, an object reference is more direct.

[trim matrix]

Those are the direct version.

[lusty shard]

oh perfect lol

[trim matrix]

that is confusing

[lusty shard]

im glad its not just me lol

[lusty shard]

use a trace before placing the instance. if blocking hit, do not place instance.

[trim pollen]

why doesn't this hide my landscape

[lusty shard]

because propagate to children might need to be checked

since maaaybe the landscape is a child of the root component

[trim pollen]

yup, good call! thanks

[slate orbit]

How to do top down wasd movement?

Everything I’ve tried so far hasnt worked

[tawdry surge]

Take a third person character and move the camera up

[slate orbit]

But I want no gravity

Because its from a side view

[lusty shard]

you can open a thrid person template and paste in those controls to your current project, OR open a third person template and set gravity to 0.

[slate orbit]

Then he starts flying

[lusty shard]

set gravity to .8

[slate orbit]

Then he has gravity again

[lusty shard]

then .1

[slate orbit]

Still has gravity

Just falls slower

I just beed to be able to change the position

Like rigid movement

[lusty shard]

so you want wasd movement, and W is not jumping?

even though this is a side view game? like a sidescroller?

[tawdry surge]

Your goal is unclear
Zero gravity means things can float

[slate orbit]

Well

Theres no jumping

Its just w moves up and s moves foen

Like climbing on a wall

[lusty shard]

so its top down, and not side view?

screenshot?

[tawdry surge]

Or do you want w to move you on z rather than x like wall climbing

[slate orbit]

Side view

But top down movement

Because its not like a 2d platformer

[slate orbit]

Yes

Z

[lusty shard]

why is there no gravity?

[tawdry surge]

Cause wall climbing needs gravity off while climbing or you fall

[slate orbit]

Theres just none for what I’m making

The character doesnt fall

[lusty shard]

so this is a wall climbing game?

[slate orbit]

Stuff can fall from the ceiling

But the character itself doesnt fall

this is the movement I want

[tawdry surge]

So turn gravity off for the character

Not the world

[slate orbit]

but then they slide when I press A and D

like they move but wont stop moving

and idk how to do W and S for up and down movement

Im currently modifying the default code for a sidescrolling character

[lusty shard]

just get world location and add 10 to the Z and set world location?

[slate orbit]

Yes

Trying to figure that out

Not sure how to change world position based on button input

[lusty shard]

could use other methods instead of Add Actor World Offset

anything about setting or adding locations

[slate orbit]

When I add get eorld location it doesnt have the x y z return values

Just a sungle one

[lusty shard]

right click and split on that 1 value

[slate orbit]

I see thanks

[lusty shard]

works?

[slate orbit]

Still setting it up

Not quite working

Its kinda like just teleporting super far up

Despite being a low number

[charred berry]

I have a sequence on trigger , that is firing, at same time as another trigger with a 'similar' name, but definitely not..ue5,,is this a bug ??

[slate orbit]

Even .001 teleports it too far

[lusty shard]

screenshot the blueprints?

[slate orbit]

Doesnt matter what value I put in the + box it teleports the same amount

[lusty shard]

try "set world location"?

[slate orbit]

What do I replace it with

Addactor?

[lusty shard]

yep

[slate orbit]

Really not working well

[lusty shard]

whats wrong with that?

[slate orbit]

it like teleports back to a previous spot its too weird to even describe

but its worse than the other one

Actually

Its just setting the Z to that number every time I click w

I think

Idk exactly but it is making me teleport to the same coordinate

Nvm

Its setting x and y to 0

And does nothing with Z I gues

Wait na Z works

[slate orbit]

That works

[lusty shard]

yay

now you can make an MMO

[slate orbit]

How do I make it so it keeps going up as the button is pressed?

Because it only activates once on a key press

[lusty shard]

ah so youll need to go into the input settings and create input Axis

[clever helm]

for some reason this doesnt work?? print string gets called but speed doesnt change?

[lusty shard]

did you try printing both values to be sure it is not changing?

[clever helm]

i did

wait i am going to hook it up to event tick see if anything changes

so it works with event tick but wont work with left shift

weird

[slate orbit]

I do have these setup

[clever helm]

?

[lusty shard]

@slate orbit use this to set up held down wasd

[slate orbit]

How do I get it to mesh with the other code?

[clever helm]

help?

[lusty shard]

I dont have time to talk you through that. basically just plug your new W into the event graph and run the green Axis value to into a multiplyer node.

[clever helm]

there is absolutely no reason why it should not work

[lusty shard]

I think its fine too. should be working from what youve shown

[clever helm]

problem suddenly showed up after i ported to ue5

[slate orbit]

like this?

[lusty shard]

strange. what template did you start with?

[clever helm]

nothing

from scratch

so if i use initialize blueprints sprinting works but almost non of the animations actually play

just the character in idle pose

[slate orbit]

It just makes the object fly up infinitely

When I’m not clicking anything

[lusty shard]

sounds like a different issue

[clever helm]

yep i am looking it up

[lusty shard]

can barely help you with the first movement issue. Hard to know where there is a disconnect

input is being received because you are printing the string

[clever helm]

its really weird tbh

just somehow out of the blue it stopped

btw this was the old sprinting logic

it stopped working so i switched to the logic in the other picture but that doesnt work too

super weird

[lusty shard]

ah replication stuffs

only adds to the confusion

make sure when testing solo that you arent controlling a client

im off for the day

cya! good luck

[clever helm]

controlling a standalone client

no reason it shouldnt work

[lusty shard]

try in a separate project to be sure

[dense badger]

Having an issue where I am spawning a BP at edit time using a Blutility, and then adding components to it. After doing all that, I call a function to return the actor bounds, and it seems to return inconsistent values. If I call that same function in the Construction script it works as expected.

[leaden raven]

does anyone know why the landscape/portrait button on the designer is greyed out? im using 4.27.2

[slate orbit]

How come the object can pass through collisions with this?

Everything else is working except that issue

[faint pasture]

Because you aren't sweeping. Why would it NOT pass through things?

You're telling it to move. It's moving. Why would it not?

[slate orbit]

Idk

How do I stop it

[faint pasture]

Have you tried sweeping?

[slate orbit]

No

Idk what sweeping is

[faint pasture]

Read what nodes do

[slate orbit]

I see thank you

[pliant swan]

I'm trying to figure out if there is a way to output the properties names and current values of a Blueprint to a text file. Trying to take BP data into a spreadsheet for balancing...

[faint pasture]

Look into LE standard library

It has some CSV stuff

Property name might be a little tricky though. Unless you have some sort of structure with name and value

[pliant swan]

Hrm. Thanks for the recommendation. I'll see if that can help. Crazy how difficult this seems to be. lol

[hollow gorge]

when focusing a widget button, spacebar will act as a click. How can I disable / change the focus key behaviour?

[rough eagle]

Hello, on my project (blueprint only) i would like to add the same behaviour for dealing with damage, for my 3rd person character (parent class character) and some statics objects. ( urn, statues...). how would i do that ? is there a way to add a "default behaviour" to an interface? or something

[tawdry surge]

Short answer is no. You can make a base class with an interface for all your static things to inherit from, and script your logic in there.
Or for handling damage you can make a component
Or unreal actually has a concept of damage and death by default. You can use those

[remote meteor]

you will need to override game instance in c++ to override the default navigation config

[rough eagle]

i'll implement 2 version of my damage so, one for statics and one for dynamics

[hollow gorge]

is the file I'm looking for "GameInstance.cpp"?

[long whale]

hello, I'm making a graphics option menu. How to store and load options that are not within the GameUserSettings object like screen percentage?
Should I use save game object or file read/write?

[steady nexus]

https://docs.unity3d.com/ScriptReference/RectInt.html#:~:text=Description,%2C width%2C height with integers.

Anything like that for Unreal?

[tawdry surge]

Draw rect

[sour musk]

How do i get the last input key of a spline?

I thought "Get Input Key at Distance along spline" worked with a 0 to 1 range but doesnt seem to be working how i'd like
(Plz tag me if you respond to this 🙏🏻 )

[icy dragon]

You have to use mobile presets in the Screen Size.

[icy dragon]

No, you have to make a new C++ class inheriting from GameInstance class.

[icy dragon]

BTW I already have my custom GameInstance, any documentations on doing something like that?

[remote meteor]

https://github.com/EpicGames/UnrealEngine/blob/46544fa5e0aa9e6740c19b44b0628b72e7bbd5ce/Engine/Source/Runtime/Slate/Private/Framework/Application/NavigationConfig.cpp#:~:text=InKey %3D%3D EKeys%3A%3ASpaceBar

need create a child to override the FNavigationConfig

remove the spacebar from the GetNavigationActionForKey function

then in your GameInstance you need to

FSlateApplication::Get().SetNavigationConfig(MakeShared<`Your new class`>());

in the init function

[teal nexus]

I spawned Niagara system at location from a BP actor. However, it doesn't show in the World Outliner 😦 I can see it on the level, but can't really select it and mess with it 😦

[remote meteor]

while you are at it you also can add wasd to ui navigation if you need in the ctor

[icy dragon]

I assume FNavigationConfig can be switched in runtime with that, right?

So for example WASD navigation applies to pause menu but not in commands menu

[remote meteor]

dint tried

[white field]

opinions/metrics on performance impacts from running multiple objects with independent colliders that sometimes overlap, but no extra objects as all meshes are rendered... Versus.. generating consolidated collision meshes so you are not testing against [many] multiple objects, but instead running fewer collision checks, with the caveat that you are still adding another object into the scene

more specifically I guess, while this new semi-duplicate object for collision will represent some duplicated vertex data occupying ram, what's the cost for draw calls? or other aspects

in the extra step with the dedicated collision meshes you'd not necessarily be rendering them.. leaving that to other objects

?

[quiet shuttle]

Whats up yall

I'm trying to make a host game menu, but I'm not sure how I can make it so I launch a lobby without reloading or changing the level I'm currently in. Any advice?

Would this be a question for #multiplayer ?

[icy dragon]

Yes.

[quiet shuttle]

thank you

[solar bison]

Is it a good idea to clear all children and re-create them in UMG whenever a state update happens?

[tawdry mural]

state update is every tick i believe?

if not than its ok

[solar bison]

no, on_rep in my case @tawdry mural

[tawdry mural]

its a normal practice

[solar bison]

ty

well, there's no shadow/virtual DOM or anything like in React, so yeah, I do expect to clean everything and add it all back 🤣

How do I get length of unique items in an array

[tawdry mural]

like only the ones thats not repeating?

[gentle urchin]

Get number of points

[dawn gazelle]

Don't think there's any built in node that would do that for you. You can make a function that'll loop through the array, adding unique values to a local array variable, then return the length of the array.

[solar bison]

I'm just making the set to array and iterating over it now

[near wolf]

hello, how can I connect this without getting error ? I wanna rotate an hdri

[icy dragon]

What's the error says?

[near wolf]

can't say right now, cos im compiling shaders, but it was something with float 2 and float 3

[icy dragon]

Oh right
#graphics

[opaque acorn]

I am keep searching but i cant see get material in landscape section of blueprint . Do we need to expose it via cpp??

There is get material aginst mesh compo then skeletal mesh then static mesh but no such for landscape , is there anyway to get the material of landscape via bp??

Im trying to get it via overlapping event

[icy dragon]

So turns out Knowledge Base has an article on it
https://forums.unrealengine.com/t/slate-customizing-navigation-controls/264954

[icy dragon]

You have to make a custom GameUserSettings class.
Which means you have to get into C++ territory.

[long whale]

Yeah I checked the original UserSetting code.

[brazen thicket]

can any one help me with procedural mesh collision? It's doesn't overlaps.

[rapid bronze]

hi. when we should use safe divide?

[obtuse herald]

"This functions returns 0 if B (the denominator) is zero"
https://docs.unrealengine.com/4.27/en-US/BlueprintAPI/Math/Float/SafeDivide/

[gentle urchin]

Avoids division by 0

[opaque acorn]

Hello does anyone know how i can get material of landscape via overlapping event??

[gentle urchin]

You can return the physical material with a linetrace atleast

[opaque acorn]

So atm only physical mat is possible??

[icy dragon]

When you want to avoid a black hole

[opaque acorn]

There is a get landscape material node when i make a variable under landscape category and thwn bring it on bp

But im unable to work ot with the other actor under overlapping event

[icy dragon]

Is using physical materials not an option?

[opaque acorn]

Can we search particular letter with parse to array from phycal mate??

I yet have to check

Lwt me shw u what i got

[icy dragon]

https://docs.unrealengine.com/4.27/en-US/InteractiveExperiences/Physics/PhysicalMaterials

[opaque acorn]

I dont want ot generate hit events

[icy dragon]

It's what people commonly use to define footsteps and surface specific behaviours

[opaque acorn]

yep i guess that could be last option with a custom overlapping event with a CPP

[icy dragon]

But you don't even need C++ing to get physical material...

[opaque acorn]

do you anything about it??

ok I got it the landscape was a ref from level itself O__O sorry to bother

[opal iris]

Hello ! Does anybody know how to access to the signed distance field of a static mesh in a blueprint?

[trim matrix]

Who has inspiration on how to set up a factory system? These are bots who spawn parts and send them to other bots to craft them into products. The products are fetched by bots that move it into the warehouse area, like forklifts. I am thinking a "gun system" and use "auto fire" to empty and refill the "magazines" on each bot.

[gentle urchin]

Just check what factorio has done

Draw inspiration from that

[leaden sun]

I'm sure this comes up a lot, but how TF can I learn blueprints? I'm an experienced programmer, but the UE BP docs seem sparse and low quality, with blueprint nodes barely explained. Hovering over blueprints in the editor only gives basic explanations of functionality and return types. Any ideas/pointers? Where can I start?

[obtuse herald]

https://www.youtube.com/c/MathewWadsteinTutorials/videos explains the functions of nodes and shows examples on how to use them. He's my go to source if I don't know what a node does.

[mental trellis]

He should be employed by Epic.

[tawdry surge]

I'm sure he makes more working independently

[leaden sun]

Thank you I'll give these a go. Is there anything not covered on this channel, or does it pretty thoroughly cover most BPs?

[opaque acorn]

most of BPs 😄

i guess my cubemap max proj will complete soon

feeling happy

[obtuse herald]

Most of them. If you don't find an explanation for a specific node you can still ask here OR check the node's cpp implementation.

[leaden sun]

Is it easy to jump from a BP to its code-based implementation? Will the c++ necessarily even be commented or do you mean I'd have to step through the code to see what it does

[gentle bronze]

Hey!
how do i use a post process under a river? im using spline based river if i extend the river the post process volume dosent // how do i fix this

[obtuse herald]

You can double click a node to open it's cpp implementation. But that works only if you have editor debug symbols installed (~40 GB) iirc. Other option would be to search manually for the implementation in the source code.

[tawdry surge]

The source is usually commented decently, but epic loves abstraction

[leaden sun]

Ah cool, yeah don't think I wanna download that 40gig

[burnt oracle]

Lyra uses "CreateNewStaticMeshAssetFromMesh" that's found in the Geometry script plugin. I'm using the geometry scripting plugin, but I'm unable to call this function. for some reason it's not found (even tried copy-pasting), but it's in the plugin so i'm not sure what i'm missing

[burnt oracle]

it's 50.8GB, but try just adding the engine Source instead of the debug symbols (252MB)

[mental trellis]

What do you mean "not found"?

[burnt oracle]

If I search for the function, nothing comes up (but the struct for the input parameters to it does):

[teal nexus]

I spawned Niagara system at location from a BP actor. However, it doesn't show in the World Outliner. I can see it on the level, but can't really select it and mess with it 😫

[mental trellis]

Does Lyra use it in cpp or bp?

[burnt oracle]

in BP:

[mental trellis]

Try copy+pasting the node.

[burnt oracle]

doesn't work:

[mental trellis]

Is it a function in the lyra asset?

Not a global function?

Hmm, I guess not.

Shrug

[burnt oracle]

It's in the plugin:
C:\UE\Engines\UE_5.0\Engine\Plugins\Experimental\GeometryScripting\Source\GeometryScriptingEditor\Public\GeometryScript\CreateNewAssetUtilityFunctions.h
got me confused 😦

[rain egret]

i am using a tick to pass the location for a spheremask in a material to a object. this works well, however if my object starts moving very fast (its an airship) the spheremask lags behind, any idea how to circumvent this?

[leaden vapor]

are trying to add it in the construction script by any chance?

[obtuse herald]

You can try changing the tick group order of the actor/component

[burnt oracle]

nope, just in the event graph

[leaden vapor]

event graph of an actor or an uobject

[burnt oracle]

actor, even tried the same actor as used in lyra, and tried from in a function (Lyra is using it in a function on the actor)

[rain egret]

alright i will try that

[burnt oracle]

if I check Lyra, GeometryScript has a sub category "AssetManagement", for some reason this isn't shown on my project. though i'm not sure why not

[icy dragon]

I guess he sort of is, being the tutor for Unreal Online Learning before the refactor

[icy dragon]

Yes(n't), it's accessible in material graph, but not in actor BP.

[zealous mesa]

Hi All, I would like to set r.PathTracing.ProgressDisplay 1 permanently in my project. how go about doing this?

[icy dragon]

Mesh distance field is not super consistent (it won't work on Intel GPUs), so it should be used in more cosmetic manner - you can't drive gameplay with it.

[leaden vapor]

its only available with the editor

you can call the function from a 'generated dynamic mesh actor'

[wicked osprey]

Guys, is there a way to just select the default value of a static mesh variable?

[burnt oracle]

urgh, I see now...thanks.
now i'm wondering how to create a new static mesh from a dynamic mesh. (the dynamic mesh has weird visual artefacts when it moves with physics, was hoping to test making it a static mesh)

[leaden vapor]

no idea sorry, never used the plugin

[opal iris]

Okay thank you ^^. I was looking for a tool that could evaluate if a location is inside or outside of a mesh (and also if possible calculate "how deep inside it is this is why i though about distance mesh field") do you have an idea of what i could use ?

[icy dragon]

What mechanics are you trying to achieve?

Mesh DF is only accessible in material graph, so the use is more limited to making effects (e.g. niagara GPU collisions, ripple effects, water shoreline, etc), as opposed to making a logic.

[balmy vessel]

If I have 2 event dispatchers that I call one after the over, will all the bound functions from the 1st event be called and finish operating before the 2nd event is called?

[icy dragon]

For logic, you want to look for the collisions instead.

[balmy vessel]

so will any functions bound to check name unused finish operating before input changed is called?

[trim matrix]

my AI isn't activating his walking/running animation

he just hovers over to me

i'm guessing his animations are tied to some other movement input or event?

if anyone is good at that stuff

[opal iris]

I am developping a VR application and i track the position of the hand of the character with motion controller. My character wear a thick suit and i want to detect if the motion controller is "inside" the suit and replace it outside of it if it is the case

[icy dragon]

#animation

[icy dragon]

Then use collisions.

[dense summit]

Change Level is broken, just takes me back to the start of the same level

[woeful pelican]

Screenshot the blueprint?

[dense summit]

MyLevel01 is in a folder called Levels, so I also tested Levels/MyLevel01 but that also sent me back to the start of the same level and not to MyLevel01

And I tried /Levels/MyLevel01 too, it did the same

[cyan bone]

When i use timeline, after a c branch i run the Stop >. But that doesnt trigger the Finished >. What should i do to Stop yet execute stuff after? Using Sequence?

[burnt oracle]

if anyone else has this issue, using the DynamicMeshActor fixes this. going to see why it's needed as i'm not using anything directly

[woeful pelican]

Are you testing this in the editor?

[dense summit]

No, in the build

[graceful citrus]

Hi guys, is there any way to take screenshot with path like this? HighResShot filename="../test.png"
i would like to put screenshot one folder before the current path

[woeful pelican]

Okay, so you'll need to check if the level is being included in the build. Something along the lines of ‘list of maps to include in a packaged build’, within project settings

Other than that I'd suggest doing it by object reference instead of name

[haughty tide]

Hello, can anyone help me with possessing an actor or a pawn(?) on client? Seems like possession works but camera doesnt change.

[narrow veldt]

Hey people, I have run into a problem, I have a system that basically creates text messages over interactable objects and npcs that says "press e to interact", it works with trace sphere and so far it works great, only one problem. I want text to appear around the upper side of the npc, or rather a bit upper side of the screen(or changing size of the text would work as well), but it automatically assigns the location and size so I cant change it, how can I solve this? (second image is an example, I want to text to appear around those three blue boxes)

also, text changes location depending on the rotation of the camera like this so moving it a bit side or changing the size could be a better option as well

[stuck plaza]

is it possible to get a random value of enumaration, similarly to how you can get Random Bool?

[drifting forge]

it's kinda hacky, but you can try this way:

[dark crow]

I think you can just plug the int directly into the enum

From the random in range

Ofc with conversions, lol

[tawdry surge]

I've also seen people make an array and pick it from there

[drifting forge]

but you have to know your upper limit to generate random for int

but, yea, you can convert int into any enum via bp

[dark crow]

Ofc yeah, just a more direct way

[drifting forge]

like this:

[dense summit]

It still doesn't work, I added both the levels into the list of levels to include in a packaged build but it still takes me to the beginning of the first level. is there something i need to type differently in the Change Level node?

[woeful pelican]

Level name should have no prefix or suffix, I think.

[hollow gorge]

super helpful, will give it a read!

[dense summit]

Yea that's what I tried, just MyLevel01, but it still doesnt work

[woeful pelican]

Do you need to use that node? Could you not use "open level by object reference"?

[dense summit]

How do I get a reference to the level though?

[dark crow]

You just select from drop down

[woeful pelican]

There are two "open level" nodes.

The one you are currently using takes name. Theres another that has an asset dropdown

[dense summit]

Ooh, ok I'll try that one

[burnt oracle]

PSA: set the material on the DynamicMeshComponent, or it looks weird when moving

[dense summit]

That doesn't work either, still teleports me to the start of the level I'm already in.. wtf

[woeful pelican]

Make a new empty level, try opening to there

Also screenshot what your blueprint looks like now

[dense summit]

it still just doesn't work, i tried different levels, a new level, the template vr level, nothing works

[south oracle]

@dense summit Sorry, sort of jumping into the middle of the conversation... if you've packaged the build, did you include the new map in the list of packaged assets? It will include all maps by default, but if you specify at least 1 map, then you need to specify all the maps you want to include. (Packaging->List of maps to include in a packaged build)

[dense summit]

Yeah I tried both, first I had no maps selected there, then I put all my maps there, doesn't work either way. The trigger always sends me to the beginning of the level i'm inside, instead of changing to the new level

[south oracle]

Is your map in a subdirectory?

[dense summit]

Yes

[undone surge]

why wont my functions in my main class show up in the child classes?

[leaden vapor]

maybe are set to private?

[undone surge]

how do i switch a function to public

it says public

it only shows when i clikc it on the overideable list

itll be there in all child clases if i dont do this right

[cyan bone]

Im vinterping 300 instances moving them in the horizontal. Is it normal that it starts lagging? They are simple planes with a texture. Im using a timeline.
I use the timeline then a for loop, iterate through them as i move them.
It lags a lot. Yet i've done everything to make it simple (instances / planes with textures). I cant imagine if this was actual 3d characters. Or i must be doing something wrong. Please help me.

[tawdry surge]

For loop on 300 things every frame is not a great BP operation. Heavy looping is much more performant in c++

[cyan bone]

So i must go C++. There is no other escape?

[gentle urchin]

300 things shouldnt be too bad

Show some code?

[cosmic breach]

Could someone please help me (a total noob) with some blueprint programming? I’m trying to make a drag & drop operation recognize the name of the object as a string, and find it in an array, and then set a different array element based on the string array index number. I’m running into problems when I try to cast this to my character pawn.

[gentle urchin]

What exactly are you casting to your pawn..

[cosmic breach]

Stat data basically making an input menu where the user can assign an INT value to a stat

[cyan bone]

Its a big spaghetti al tomato. But i can describe it. Its a blueprint with bacterias. Each blueprint has like 100 bacteria. Each timeline->for loop moves the 100 bacteria with vinterp. So i have 3 actors, with 100 bacteria, moving with 3 timeline -> for loop -> vinterp to.

[cosmic breach]

(Strength, Dex, Con, etc)

[gentle urchin]

Thats probably your biggest issue then :p the spaghettio

[cyan bone]

but its only when they are vinterping. And all 3 actors with bacterias at the same time.

3 actors with 100 bacteria

[cosmic breach]

Grabbing some screens now

[leaden vapor]

what are these bacterias?

sorry ive read now, why not do it with niagara?

[cobalt gulch]

What's a way to keep variables of whether an attachment is activated on a certain weapon?

For example AR-4 has a suppressor vertical grip etc

And then to check whether its activated by the player with a loadout

[gentle urchin]

Clean up the spaghetti and show some code :p or move it to cpp

I went from 400 to 2k vinterping isms when i went to cpp

But 400 was 'fine' in bp

[cyan bone]

Ok i will work on that. But i must make this presentable. Because it is a mess.

[cyan bone]

Thats an option i forgot about. What should i look for? niagara instance static mesh? Will i have to do it all from scratch?

[waxen gull]

Is there a way to ask IN EDITOR for a file Path?

[manic hamlet]

Hey, I am trying to access this variable that is in this HUD-Child-Class:

But I can not....

Im new to Unreal engine,so It might be the wrong approach ENIRELY, anyone can help pls? 😄

[waxen gull]

you need to assign the object an object reference to the Cast to node

based on that object reference it is going to check if the object is part of the class you want to cast to

[manic hamlet]

u mean the "left side" at Cast To HUD_MainHUD?

[waxen gull]

if thats the case you can acces the variable

yea

[manic hamlet]

what would this be in my example? 🙂

[waxen gull]

youre still in the same blueprint ?

[manic hamlet]

the second part, no

[waxen gull]

you assigned a game mode ?

[manic hamlet]

First part is in a HUD-Child Class

And the second screenshot is inside a Widget Blueprint

yeah i got a game mode

[waxen gull]

Get you Player Controller

and plug it into your Cast to function

[manic hamlet]

Error:

[waxen gull]

then plug a print string into each execute output

[waxen gull]

ohh my bad

[thin panther]

Why do you need a ref to that widget wheb ur in that widget

This makes no sense

[waxen gull]

i always call my player controller HUD

[thin panther]

Surely you would just make functions in your widget then call them from the hud with that reference

[manic hamlet]

@thin panther its not the same 🙂

[waxen gull]

its about understanding how casting works

[thin panther]

Ye im not arguing with that

[waxen gull]

where did you create your HUD_Main_Hud in ?

[thin panther]

They have a ref to the widget in the hud, then are trying to access the hud ref in the widget

[manic hamlet]

Alright, lets back off this is my world settings(u can see the HUD_Main there)

inside the HUD_MainHUD I got this:

[thin panther]

Ok

[manic hamlet]

And now I want to get that variable inside a WidgetBlueprint I made

[thin panther]

Different to wb character selection?

[manic hamlet]

AHHH I see what U mean

sec

Yes, different from Character selection

[waxen gull]

I have never seen HUD Class before ^^

always used Player Controller for HUD

[thin panther]

Ah gotcha

So gethud > cast to hud

[manic hamlet]

Well, I am new to Unreal Engine, I assumed that all HUD related stuff would be in the HUD class,no?

[thin panther]

Yes it should be

Its good practice

[manic hamlet]

good 😄 learning it properly then haha

Like this?

[thin panther]

Yes then a get player controller into the get hud

[manic hamlet]

haha, one step ahead of you 😄

still cant get the variable yet 😄

[thin panther]

Compile the hud?

[manic hamlet]

done

Ive got UE open for a while..lemme restart, ive seen that this "fixes" stuff sometimes 😄

[thin panther]

Ye it does sometimes

[waxen gull]

Why do you get the HUD trough the Player controller when its set in the GameMode

should be set in the Player Controller then xD

[thin panther]

Wdym

The game mode sets the default class

The hud itself is tied to the player controller

[waxen gull]

You set everything here

and you get almost every of those references here

just not the HUD cause you you get it over the PlayerController

[manic hamlet]

O M F G..i think I found a "bug"......

In the HUD i called my variable this: (with an underscore between WB and Character)

obviously I would look for WB_CharacterSelection in the Widget then as well....

[soft mulch]

Hey guys! Has anyone faced the issue: when I select "self" in BP, Details panel gets populated with all properties of self AND all components that this blueprint has. I think that's not how it works by default, but I can't find a way to change this... Thanks!

[manic hamlet]

here the underscore IS GONE!

[thin panther]

Ah yeah forgot about that

It auto treats underscores as spaces

But i thought it would have still shown the cintext tbh

[manic hamlet]

j043ojc039u4q80t9fu3f89043fu8394q XD how can a noob like me know..... 😄

So I had it correct from the beginning.... 😄

unfortunately copy pasted WB_CharacterSelection into the search bar each time...

Okay.. its working now.... thats stupid though 😄 @thin panther @waxen gull Thanks for the help 🙂 Nice to see that after years of "unity quirks" I get to see them in Unreal Engine too 😄

[manic hamlet]

You may wanna repost,so your post is the last and people can help 😄 as my "issue" is solved

[thin panther]

No problem lol

[crude isle]

why is the line not going in front of the camera

it's shooting at one direction but it isnt in front of the camera

Nvm

forums fixed it

[real notch]

Which channel is the best channel to ask about project structure? Stuff like levels, saves, key bindings for pause menus etc. I'm trying to make my next game in unreal but I'm having a tough time figuring some stuff out.

[manic hamlet]

Anyone good with Json Files? Basically I would love to get an Integer/text/Whatever from a File into a PrintString onto the screen in runtime.
aka I hit the K key and I want to to show whatever is in Content/JsonFile.json
There doesnt seem to be many tutorials about this 😦 please tag me in responses!

[thin panther]

for future reference direction vectors are normalised so they only travel 1 unit, to get the vector for more than 1 unit, you need to multiply it by however many units you want it to go

[remote meteor]

Because GameMode is the one that decides which class you use and a HUD belongs to a controller -_-

[waxen gull]

yea

but why is it not in the Controller from the Beginning

[remote meteor]

because

[waxen gull]

idc

[remote meteor]

GameMode

[waxen gull]

it is what it is

[remote meteor]

is the King

that only exists in Server

not Clients

[crude isle]

Need help

Basically

I'm shooting a line trace on every tick and I want it to do something when I press a certain key

But I dont wanna shoot the line trace when I press the key

I want it to always shoot it

Rn it's always shooting the line trace

But idk how to make it check if I pressed E

[plain hull]

Hello everyone

Hope you are doing well

How to read json with arrays using structs

[magic parcel]

Created a rotation system for the skybox

[faint pasture]

Shift-Win-S
Also
LE Standard Library

[magic parcel]

when it gets to -90, it freezes

and doesnt rotate anymore

is this a known bug?

if I set the sunspeed to faster speeds, it skips -90 and works

if i set the sunspeed slower, it hits the -90 and stops

[faint pasture]

Can't see anything in your screenshot

[magic parcel]

lol wtf

i just saw that too

thanks for letting me know 😛

[faint pasture]

Don't use pitch, use yaw or roll, preferably yaw

use a scene component to offset if you want

[magic parcel]

interesting

ill try that out

[faint pasture]

Pitch goes 90 to -90, yaw can make a full 360, idk bout roll

[plain hull]

JSON with array

[magic parcel]

k ill try that

[plain hull]

How can I read this in unreal please help me.out

[faint pasture]

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/EditorScripting/DataTable/FillDataTablefromJSONFile/

Start there

[plain hull]

Unable to find in blueprints

[faint pasture]

https://www.google.com/search?q=unreal+engine+json+blueprint

[young frost]

Hello everyone. I'm having a little trouble with grabbing objects. I'm using a physics handle to grab an object and move it around. My problem is, when I have an object grabbed, if the player gets on top of the grabbed box and move the mouse around while grabbing, the object sends the player flying, exactly like garry's mod prop flying bug. The only way I found to prevent this was using a Set Collision Response Channel node and stop the box from colliding with the player while it is grabbed. But this is not the result I want, what I need is for the object to keep it's collision with the player, I simply do not want for both the object and the player to exert forces on eachother while the object is being grabbed.

[faint pasture]

Google is good at finding stuff

[faint pasture]

So what SHOULD happen if a player is standing on a grabbed object?

[young frost]

Nothing, seems kinda contraditory

[faint pasture]

The core of the problem is that character movement doesn't use physics.

Well something should happen.

[young frost]

cause Im still able to move the box while on top

[faint pasture]

Do they rise, float there, or fall

[young frost]

The player or the box?

[faint pasture]

The player is holding the box so both

[young frost]

the box pushes the player continuously, as if riding a sled

[faint pasture]

what do you want to have happen

[young frost]

Not send the player to the moon when I'm on top

Ahahah

[faint pasture]

I'd guess it should just fall

dig into the CMC physics settings but this might be super tough to solve with kinematic movement

[young frost]

Was thinking of just stop the player from grabbing the box when he gets on top

[faint pasture]

Eh that'll have edge cases galore

It's a tough problem for sure

[young frost]

This is tricky indeed

[faint pasture]

Dig into the cmc physics settings and also the base and Can Step Up On settings etc

[zealous moth]

I need some math help with trying to get a value between 0 and 1 using regular math.
At an angle between 0 and 45, I expect the value to be 1
Between 45 and 50, the value linearly goes from 1 to 0
Any value between 50 and 180 should be 0.

I got a function to figure out the angle value, I just need a hand with getting it to stay within those bounds and interpolate between 45 and 50

[faint pasture]

That's the problem with physics and CMC, they don't really get along. If you used physics for movement then the grab would just be a constraint between the character and the object, and they'd fall together no problem.

[faint pasture]

Remap Range Clamped

RemapRangeClamped(Input, 45, 50, 1, 0)
done

Best math node ever IMO

[young frost]

Will take a look, I don't think I'll manage to solve this but worth a couple more hours, thank you!

[faint pasture]

If it was my project and I had to use CMC I'd probably just release grabbed object when stepped on

[zealous moth]

I see, i tried it and i am printing the right value but somehow the effect isn't there.

I'm using this in anim BP

[faint pasture]

Show what you got, what do you mean by "effect isn't there", it's doing what you want if you set it up right

[zealous moth]

I'm trying to make it so that the model looks at a target when the target is within 45 degrees vision

[faint pasture]

Print HeadAlpha, if the numbers make sense then your error is elsewhere

[zealous moth]

i did, numbers are there but the effect doesn't seem to want to lerp

[faint pasture]

Does the effect work with a static 1?

if it's always on?

[zealous moth]

yes

[faint pasture]

Show how you're setting HeadAlpha

[zealous moth]

glorious trigonometry

[faint pasture]

Why are you doing trig, just use dot product

Anyway, start from the basics. Make sure your angle output is correct, then your remap, etc etc

[zealous moth]

yeah it is all there

at this point, the head alpha is near 1 but not 1

doesn't work

here is at 1

[faint pasture]

Test static 0.5

[zealous moth]

works

[faint pasture]

Are you testing by just typing the number in the node or setting HeadAlpha to 0.5?

[zealous moth]

maybe i used the map range clamped wrong?

oh

i re-organized it

it does jump from 0 to 1

it's always 0 and then 1

hmmm did the map range clamped fail?

[faint pasture]

Show what you have right now

all the math going into HeadAlpha

[faint pasture]

Make sure nothing else is setting HeadAlpha

[zealous moth]

maybe that boolean is killing it

nothing else is

[faint pasture]

You're probably overwritting it yeah

you might be setting it, printing, then setting it again to 0 or 1

disconnect all sets but the math one

If you want booleans, bake them into that math (select node0

[zealous moth]

i think i might be misusing the map range clamped function

sec

[digital lantern]

Hello, when I shoot my bullets too close to an enemy, or while looking at my feet, this happens = The bullet "pushes" the enemy, or pushes me. How can I do this please? Ping me if you want to help

[faint pasture]

That looks right assuming your trig is correct, just lose the other sets of HeadAlpha

[zealous moth]

well the false statement in boolean is always false. It's just a switch to follow or not. It has no consequence here

this part here

is the angle

between 0 and 180

[faint pasture]

This stuff

[zealous moth]

i work better in degrees :/

[faint pasture]

lose all that stuff

[zealous moth]

yeah, it is always true, but sec, i'll do it

[faint pasture]

Show the whole BP then

[zealous moth]

ah it's working but the angle is still too steep

going to try to make it a bit looser

[faint pasture]

You can use a power node to change the ramp too

[zealous moth]

argh, still to quick

power?

[faint pasture]

RemapRange -> Power

to make it nonlinear

but I'd ramp over 45-90 tho

[zealous moth]

wouldnt that make it go even faster?

[plain hull]

This is JSON. I have 100 JSON like this. What method should I follow for reading these 100 JSON separate files data and how can I make user defined struct. Please anyone can elaborate

[zealous moth]

oh wow

that 90 was nice

very smooth

[faint pasture]

Already told you, either import them into a data table or get one of the BP JSON plugins

[zealous moth]

VERY NICE

ty @faint pasture

good olde math

[faint pasture]

So now bake a boolean into it with a select node

[magic parcel]

@faint pasture that worked, thanks!!! xoxox ❤️

[faint pasture]

if you want head turning to be able to switch on or off

[zealous moth]

and yeah i know i can use the 0-1 dot product but working in degrees is way more meaningful 😉

[plain hull]

Unable to find import using data table

[faint pasture]

I do my day/night cycle with an actor with the planet, sun/moon light, and all that

[faint pasture]

https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/EditorScripting/DataTable/FillDataTablefromJSONFile/

[plain hull]

Can you have my anydesk access for a while

[magic parcel]

Yeah, im just hacking something in while I work on the rest of the stuff

[plain hull]

I will be really thankful to you

[magic parcel]

so this works for now :P, but yeah, we will move to a BP actor so I can control everything when we add in weather and all that jazz

😛

Zombies first

😛 then skybox

[faint pasture]

You can't edit data table at runtime, just read up on data tables, you can just import from JSON in the editor

[plain hull]

Yes I want this

Can't import JSON because I have to create struct first. But unable to make struct there

[faint pasture]

Why can't you make the struct?

[plain hull]

I have an array of attributes with string values

Should I make enum

Or unable to import

[faint pasture]

Just read up on data tables, you're totally lost right now.

[plain hull]

Okay

Thank you

Can you do me a favour please

While accessing anydesk

Just make a struct while seeing my JSON. I will be really thankful to you

Yes I am lost from last 8 hours and no progress

[obtuse herald]

https://docs.unrealengine.com/4.27/en-US/ProgrammingAndScripting/Blueprints/UserGuide/Variables/Structs/#usingcustomstructs
it's really not that hard

[plain hull]

Can you just take my anydesk

And do a little stuff for me

I just want to send an updated

And have nothing to show

[obtuse herald]

I won't

[faint pasture]

Lemme just get my rootkit updated

[obtuse herald]

You need to learn it at some point

[slender maple]

Can someone verify that "Create Event" is working in the latest UE5 release? I am not getting and Drop Down Menu (Function Signature should be correct)

[plain hull]

Sure.

Thank you everyone

[desert juniper]

refresh the node that you're trying to create this event from

[slender maple]

tried already

[wise tide]

dumb question but how do I make a string array variable? I want an instance editable list (custom combobox) but when I search array I don't find one for the string data type.

[slender maple]

refreshing everything restarting engine

I am using a c++ enum in the signature without TEnumAsByte

could that be a problem?

will check that, thanks!

Removed the Enum completely. Inputs are now only bool and one structs and output is a bool as well. Still not working

I have checked with an example that should work (LE Extended Standard Library Sort Array) Not working either

So either I am really doing something very wrong or the current engine has a bug

[wise tide]

Better way to word it, can I recreate this as an instance editable variable in blueprint only?

[slender maple]

?

[wise tide]

I don't think so, but maybe I have it setup wrong

[slender maple]

you will have to regenerate based on your array / set

[wise tide]

Yes, but I don't know how to create an instance editable array like the one shown in the screenshot where I can add/remove indexes and change the value of them

[slender maple]

just add a string variable and make it an array

[wise tide]

im blind af. I was typing array into the searchbar 🤦

tyvm

[slender maple]

So no one can verify that Create Event works in UE5.0.1

?

[cyan bone]

@gentle urchin As we talked, i tried to isolate the section of my blueprint as best as possible to show the problem.
Im having issues with performance when vinterping instance static meshes.
Since vinterping and instance static meshes are supposed to be cheaper, i dont understand why this is happening.
Im moving around 100 instance static mesh copies, and they check if there are others too close to them. If there are they will spread out.
This is based on javascript flocking tutorial of codingtrain - separation.
Pls help me solve this issue.
https://blueprintue.com/blueprint/ptfdsr2f/
https://blueprintue.com/blueprint/bnzlqyfm/

[chilly yarrow]

Hey friends, quick question. How do I combine My input axis move right/left with input axis forward/back to get this

[tight schooner]

The node in your screenshot doesn't represent the thing you want. One way to handle what you described is to get axis 1, get axis 2, pack them into a vector 2D, and see if the vector length exceeds whatever threshold you want.

Each input axis mapping has its own getter function

So you don't have to use the input axis events per se. You could check the inputs on tick e.g.

[wise tide]

Can I get the index of an enum? I want to convert the fullscreen mode enum to my string combobox by setting the index of fullscreen mode to the index of my combobox.

[chilly yarrow]

Oh. And how would i just get the InputAction Movement?

[tight schooner]

Uhh. Input actions are different than input axes

You define them in the project settings

Input section, IIRC

An axis is analog, and an action is digital (a button)

Actions fire pressed/released events and the axes provide a new value every frame

So the screenshot depicts a button mapping that someone called "movement"

[chilly yarrow]

Oh that makes sense. Well sort of. Atleast I understand how he did it then

True. I'm trying to make him change state on direction change. That's why I needed it as an action

[faint pasture]

State = SomeFunction(ForwardVector, Velocity)

or
State = SomeFunction(ForwardVector, InputVector)

InputVector = (InputAxisForward, InputAxisRight)

[chilly yarrow]

Looks good. Well.. i was following a tutorial you see....

I'll try for sure

Thanks guys ❤️

[gentle urchin]

These dont happen to be Character childs by any chance?
Your trouble isnt the VInterp tho. The rest adds a significant cost to it, especially in bp
Along with the nested loops. 100*100 is 10k already. so you're doing 30k loops each frame

[chilly yarrow]

I'd like to hear your case against tutorials

[cyan bone]

They are all instanced static mesh. They are planes with texture.

[gentle urchin]

Good, atleast. But as noted above, you're doing 30k loops

no wonder it goes slow

[cyan bone]

so what can i do to keep them separated.

i thought this would be cheaper

better i mean

[gentle urchin]

you can easily do 300 ism instances without any trouble (no reason as i see it to divide it in 3),

but you're doing a Loop for each actor with a nested loop per instance with yet another nested loop per instance

30k distance checks

[cyan bone]

but i need to do so, no? to check if my instance is getting to close to the others, and to make the separation. i check if any other instance is close to this instance, if it is then i add this vector to make the separation

so each instance will loop 100

[gentle urchin]

cheap in singular, but at these numbers its quite expensive

if you do "stat uobjests" in the console

you may get some info about the cost of them

[cyan bone]

ok so what do i do instead? do i just allow them to overlap? it looks ugly 😦

i need to make them keep a distance between each other

[gentle urchin]

Moving it to cpp will save you some performance

there are cheaper methods of checking distance, altho less accurate (so prob ugly still)

cpp!

but they all move relative to each other do they not?

like a pack

[cyan bone]

can you see the video?

[gentle urchin]

yeah

[cyan bone]

they move independently

[gentle urchin]

wasnt sure if that was on purpose

Move it to c++ and you'll see ~10x performance

assuming you stick to the same logic

10x prob is not enough tho

[cyan bone]

i understand. but i dont think it will fix it. because i intend to have many many units. thats the main challenge

so i will maybe let them overlap

[gentle urchin]

then you need better ways to control them

faster, cheaper

[cyan bone]

yup. do you have any other alternative suggestions?

[gentle urchin]

Not really. What you're trying to do, assuming you're intending to have 'thousands' of units, is very hard to do

[cyan bone]

i have an alternative that is, just checking if a certain ammount of units is overlapping. and if they are, i spread them out from the center to the outside

its very cheap, but not the most accurate

and i had a ton of work converting that javascript tutorial into blueprint

[gentle urchin]

if you can use distanceSquared instead, you can prob shave off some perf aswell

[cyan bone]

ok will try that. thanks a lot

[drowsy pumice]

Is it possible to override variables (not functions) inherited from parent class? I just want a child class to have a different default value

Set what exactly?

I can't make a variable with the same name, and there is no 'override' button like with functions

[bold phoenix]

Anyone knows why I can't find this node in my blueprint actor ?

[drowsy pumice]

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

Thank you

[rich jungle]

trying to make multiplayer widgets work

this causes two widgets to appear on the main client, instead of one on each

anything else, or blank

gives me "that's not a local controller"

I'm trying to find out what I'm supposed to use instead

when I put in "get local player controller from ID"

id 0 because not splitscreen

I get no widgets at all

and an error saying that calling viewport returned none

thanks

[drowsy crater]

I'm trying to attach the Spring Arm of the camera to my Character's mesh, so that it follows the body while being in a ragdoll. I've been given this answer, but I have no idea how to make the blueprint itself (still learning the basics of blueprint, despite having done a handful of tutorials). Any tips would be appreciated

[sage shale]

i found it nvm I'm stoopid

[trim matrix]

Right after you call the logic that enables ragdoll mode, use the AttachComponetToComponet node.

The Target is your Camera componet
The Parent is the mesh componet

[sage shale]

Nevermind I didn't find it 😭 I thought "Cast to ---" would help but it infact did not :,]

literally just wanna access the score in the FirstPersonHUD file and increment it when an enemy is killed 😂

I don't know how to get a variable from one file in another*

[trim matrix]

In order to access any information about another blueprint, or call any functionality on another blueprint, you must first get a Reference to that blueprint.

[obtuse herald]

You need to get a reference to your FirstPersonHUD. You get one as a return value when you create the widget. Best is to store the value in a variable to access it later.

[sage shale]

uhhh okay, 1) Thank you guys for answering and 2) What do you mean when i create the widget? what widget- I'm trying to use a "Cast to FirstPersonHUD" currently but all i can do is set it not read it ;-;

[trim matrix]

Yes, when you create a widget using the CreateWidget node. That node returns a reference to the constructed widget.

[obtuse herald]

Also you need to add it to your viewport (Add To Viewport)to see it

[sage shale]

first i should probably ask what you mean by what a widget is

what exactly is a widget? I'll look it up if you don't wanna explain but i figure it might be faster to ask

[trim matrix]

Widgets are the name for user interfaces in unreal.

[sage shale]

currently I just have it using the draw text function in the preexisting code, should I not be?

[sage shale]

ohh okay

[trim matrix]

You might want to look into that entire system.

Unreal has a whole system for building UI

but before that.

You need to learn the fundimentals on how blueprint communication works.

[obtuse herald]

https://docs.unrealengine.com/4.27/en-US/Basics/GettingStarted/

[trim matrix]

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

[sage shale]

ughhh okayyyy thank youuuuuuuuuuuuuuuu both of you 🙂

[split ginkgo]

How could I create a Box Structure from component bounds?

[tight schooner]

min = box extent --> negate vector
max = box extent

I forget if extent is radius or diameter so to speak... you might have to divide the vectors by 2. Do some testing to figure out which one is correct

if you need it to be world-space rather than relative, add the "origin" to the vectors before feeding it to the Make Box node

the origin is the world-space location of the box's center

[cosmic kelp]

I have a slider control in a widget that has focus and when I press left I want it to navigate to a custom function. This works fine, but I am trying to figure out how to get the slider control object from within that custom function. I feel like I'm missing something obvious. I was going to try to use an input parameter for the custom function and pass in "self", but didn't see any object like that.

[bold phoenix]

Near the name of the slider you have to tick a box and the the slider will appear in your variables

[cosmic kelp]

I'm trying to use a generic custom function that doesn't get a specific slider variable. Using Left Navigation for the slider control I am calling that generic custom function. I want the function to just use the slider variable based on the slider control i have selected (I will have 3 of these sliders on my widget that would call the same custom function when pressing Left).

[bold phoenix]

Can you send a screen shot ?

i'm not sure i understand your goal

there is only one slider in the widget ?

[cosmic kelp]

3 sliders in the widget. Taking screenshots now

So that is specifically using the Sound Effects Slider variable like you first suggested. But I instead want to have that just reference the current slider that was pressed Left or Right

[bold phoenix]

Maybe you can do 'on mouse capture begin' set SoundEffectSlider to slider1 or slider2

[cosmic kelp]

I may just end up using 3 branches in there and check which slider has focus to increment or decrement with specific variables. Was just looking to simplify it a bit.

I know it appears like I'm just replicating what the slider already does, but with a slider you have to select it to change its value. I am ultimately trying to change its value when it has focus. Thus removing the extra selection action. (I'm using keyboard and not a mouse)

[bold phoenix]

Oh okay i understand what you're trying to do. Honestly i don't know how it could be done. You might want to try a on hover node

but i don't know if it would apply to a slider

[trim matrix]

How can I cycle through an array when I press a key?

[tight schooner]

Keep track of the selected index with an integer variable. Increment it when you press a button. When it selects an invalid index (there's an Is Valid Index node that'll help you), set the index variable back to 0.

[faint pasture]

Press Key -> Index = (Index + 1)%LastIndex

[tight schooner]

yeah, using modulo (% node) would be smart

last index = Array Length - 1

[plain hull]

Just need clarification, the below is my JSON. I have created struct for entering this JSON file into data table. Name will be integer. And how we will define attributes array in struct?

{
"name": 1,
"attributes": [
{
"trait_type": "topColor",
"value": "Brushed_Aluminum_Top"
},
{
"trait_type": "baseColor",
"value": "White_Glossy_Base"
},
{
"trait_type": "furnitureAccentColor",
"value": "Tan_Furniture_Accent"
},
{
"trait_type": "trimColor",
"value": "Green_Trim"
},
{
"trait_type": "logoColor",
"value": "Tan_Logo"
},
{
"trait_type": "Flag",
"value": "Checkered_Flag"
}
]
}

[unique harness]

it would be an array of structs

[trim matrix]

if anyone knows, how much can you link bp's with actual c++, are they interchangeable?

[unique harness]

What does that mean exactly?

[trim matrix]

me or the json 😄

[unique harness]

you

[trim matrix]

how much can you access bp's in c++ and vice versa

i understood its basically api

[unique harness]

You cannot access BPs from C++. You can access most things in C++ from BPs

[icy dragon]

BP is on top of C++. You can't access BP stuff in C++.

[trim matrix]

so you cant alter bp's on the fly at runtime from cpp?

[unique harness]

You can "fake" it with Getters or BlueprintImplementable/BlueprintNative events

[trim matrix]

thats the template thing than i guess?

[unique harness]

but you can't direct access methods or fields

[icy dragon]

Nope.

[trim matrix]

whats it called macros?

[unique harness]

no

[dire frost]

it's a one way communication between cpp and bps

[trim matrix]

so you create a bp, template it so to speak but theres no runtime alteration of it?

prebaked 😄

[unique harness]

of course you can alter it at run time

just not BP methods/fields from C++

[icy dragon]

Think of C++ and BP relationship as you programming a microchip in a circuit.

If anything BP is kind of like electrical engineering.

[trim matrix]

well no, those are precompiled

no restrospection at runtime 😄

but you can communicate between?

[unique harness]

BPs are just a layer on top of C++

[trim matrix]

as i understand bp is bsaically api

basically

[unique harness]

You can communicate back and forth but only in a specific way

You can call C++ methods from BP

You can "call" BP methods from C++ but only if they're already declared in C++

[icy dragon]

The way you communicate "back and forth" is modifying C++ variables that BP can read, and having implementable events. But that's pretty much it.

[trim matrix]

well yeah thats logical, cant call what hasnt compiled

[unique harness]

well you asked if it was possible lmao

[trim matrix]

are these systems generally used seperately then?

[unique harness]

no, they're used together

[trim matrix]

well yeah 😄 can you communicate 😄

[icy dragon]

No.

[unique harness]

what do you mean "communicate"

[trim matrix]

wait no theyre used together or no you cant communicate

can i use c++ to communicate with bps

simply put

[unique harness]

define communicate

[trim matrix]

can you send variables/state changes

[dire frost]

yeah you can do that

[icy dragon]

Yes.

[unique harness]

If it is declared in C++

You can't just make a BP with a variable/method and access it from C++

[trim matrix]

okay let me ask this a bit more directly

are they closed systems

no i get that

[icy dragon]

tbh I felt like this is borderline trolling action

[unique harness]

ikr?

[trim matrix]

but can one alter the other

[unique harness]

stop using random terms

ask what you want to do

and don't say "alter"

or "communicate"

[dire frost]

here's an example

UFUNCTION(BlueprintEventEmplemantible)
void test(int bpInput)

here you can pass in an int using bp

[trim matrix]

i think i asked quite clearly can c++ communicate with bps and vice versa

[unique harness]

yes

any other questions?

[trim matrix]

well that whas simple lol, thank you 😄

no all i wanted to know for now

[icy dragon]

The level of abstraction was too much, more than that given by UE4's codebase

[unique harness]

👍

[dire frost]

just keep in mind that c++ cannot access bps

[trim matrix]

i get that

all i wanted to know is if there was a way to communicate between the two

limitations obvious

no use making a game with bp's only not to be able to extend it beyond bp capability

[unique harness]

well yea, that's a given

[trim matrix]

...well you;d say that...

😄

let me ask a simpler question perhaps

what not to use bp's for?

[icy dragon]

In short:
✅ BP can read C++ variables that are marked BlueprintReadOnly/BlueprintReadWrite, and BP can override C++ functions that are marked BlueprintImplementableEvent
❎ C++ accessing BP made variables and functions