blueprint

[gritty plover]

That's not it at all

[frosty heron]

That's easy to do but kinda weird

Like what's the purpose?

[gritty plover]

It IS an array of booleans, but it's exposed so I can just edit it in the level editor. It's not gonna be the same for each one.

[frosty heron]

Anyway what you can do is to create an array of integer to contain the index of positive boolean index

[gritty plover]

Discord cropping ate literally every useful part of those screenshots

[frosty heron]

Loop through your boolean array. For each element. If true, add index to the array

On completed you just shuffle the integer array then get the index 0

[lofty rapids]

oh you want the index

that makes sense

[gritty plover]

I'll give this a shot

That works perfectly, thank you!

[marble tusk]

Use the completed pin. Calling the return node during a loop body will break out of the loop on the first index and skip all the rest

[wanton path]

Hey, not sure if this is tied to BP's or not. But whenever I try to spawn I spawn in this weird corner instead of the player spawn. Someone mind helping me if they can?

[sonic crest]

Is there a YT tutorial for loading assets and stuff??

[distant hollow]

Hi all,
I am using Soft Object Referencing to load furnitures into the scene.
However, after loading numerous objects, at a certain point, loading new objects will give me a "Waiting for static mesh to be ready" message on the Editor mode.
(Message does not show up on Build mode, but there is a visible lag and wait).
I am presuming that this is due to a memory issue.
Is there some way that I can check the memory status, and do some kind of unloading to manage the memory from time to time?

[frosty heron]

Assuming your furniture are static mesh

You can type
Obj list class=static mesh

In your output log

It will display all of the class you specified currently in memory

Do note that in editor once an object is loaded, they stay loaded. So you have to restart to do some test

@distant hollow show how you load the soft object references

[frosty heron]

Youtube demystifying soft object reference by epic games

[sonic crest]

Thank you

[distant hollow]

SpawnActor > Pump information to actor > Async load based on info pumped through

[frosty heron]

U want to be careful with async loading when trying to load multiple soft objects

[distant hollow]

Not loading multiple

This is from a user button

[frosty heron]

Yeah but not using handle will never guarantee that

[distant hollow]

"Not using handle" meaning?>

[frosty heron]

If u load again before the object is loaded then rip

There is handle u can use but I think cpp only. I got a help from someone in this server

[remote meteor]

its a new actor anyway, its fine

[distant hollow]

I tried making sure one is loaded before going on to the next, so that should not be the issue.

[remote meteor]

are their materials heavy?

[frosty heron]

Ahh ok

Sry didn't look at the bp carefully

U spawn actor and have the load function inside the actor. That's fine yea

[distant hollow]

Materials may get heavy, but they are separate hard references

This is how the data is structured:

Only StaticMesh is soft reference

I have a separate code for loading the mateirals after StaticMesh is loaded

Would the material volume still affect the loading in this case?

[remote meteor]

when you say "after loading numerous objects" are they different static meshes or materials?

[remote meteor]

not exactly, since they are hard referenced, they will be loaded when the datatable/class is loaded

[distant hollow]

I'd say both? Each actor will async load the StaticMesh, and apply the hard-referenced materials

[distant hollow]

Yep I was thinking the same.

So the materials shouldn't have an impact in that sense in this case

[remote meteor]

just to double confirm, its this kind of message right?

[distant hollow]

Yes

Does not appear in Shipping, but there would be a considerable lag.

[remote meteor]

those usually means its either the materials are compiling and such

[distant hollow]

Materials? Not StaticMesh?

[remote meteor]

i will guess its the set materials that is giving you the lag

[distant hollow]

Hmm should I then also soft-reference the materials?

[remote meteor]

usually yes

[frosty heron]

I soft ref everything

[remote meteor]

the heavy portion of a static mesh is usually the texture itself

[frosty heron]

The icons the material interface the anim bp

[distant hollow]

Let me try disconnecting Set Materials and see if I still get the same issue

I vaguely recalled trying that

[frosty heron]

Detected 68 objects loaded in PostLoad while streaming, this may cause hitches as we're blocking async loading to pre-load them.

I got this error when trying to async load a lot of object

Can't remember if it freze in shipping build

[remote meteor]

yep it blocks

[frosty heron]

😢

[distant hollow]

If Materials is the part causing the issue then rightfully disconnecting Set Materials should result in the error not showing up, correct?

[remote meteor]

yes

[distant hollow]

Ok let me try

[wicked marten]

hey cold summer

[frosty heron]

Hey

U woke up?

[wicked marten]

yap

how do you benefit in helpingpeople here?

[frosty heron]

I got some help back

Project saving help

[wicked marten]

but it seemed you help more than they help you

aaaah

[frosty heron]

Lots of time I discover being wrong reading convo

So that benefit me as well

Well I'm chilling here atm because i don't have my computer with me atm. Currently out of town

[wicked marten]

do you work in a company or a freelancer?

[frosty heron]

No one would hire me, I am nobody

Previously a courrier

[wicked marten]

i have taken a liking to you

[distant hollow]

@remote meteor

[frosty heron]

Anyway sorry but I don't think this discussion is allowed in bp

[distant hollow]

Lasted much longer without Materials before this happens though

[frosty heron]

Happy to talk in lounge sometime

[distant hollow]

So I'd say it's probably overloaded memory

[frosty heron]

It's a prob a shitty suggestion from me. But what happend if u add a delay after the load before setting the material

Skip a frame and see what happend

[wicked marten]

i wanna unload lots of things in my memory

i was exhausted last week

[distant hollow]

I'm trying now without the Set Materials, so it wouldn't already have anything to do with it

[frosty heron]

Ahh

[wicked marten]

yea lets talk there sometimes

[distant hollow]

I mean the Set Materials part probably contributed to the overall memory load

But primarily even without the Set Materials coming in to the picture, the issue would still occur

[frosty heron]

It doesn't seems to be related to soft ref loading tho? https://forums.unrealengine.com/t/waiting-for-static-meshes-to-be-ready-works-very-slowly/729050/2

I don't have much clue

But if ppl get the promt when not loading then the issue could lies else where

[distant hollow]

I don't think the issue is with soft-loading per se
Which is why I felt it is about memory management

The said user in the thread also mentioned that he was loading thousands of objects

[frosty heron]

How many objects r u loading? I load like over 200 atm and haven't come across the error

[distant hollow]

Maybe about there, though my own GPU is only a 2060

[frosty heron]

Yeah perhaps it's nothing to do with the loading, afterall it's editor prompt screaming

[distant hollow]

And we wouldn't know what specs our clients are running on

[frosty heron]

You should be loading when the game plays

So I'm not sure

[distant hollow]

Yeah which comes back to what I came for - memory management

[frosty heron]

Obj list class=staticmesh

[remote meteor]

if you restarted editor then it would be ok?

[frosty heron]

With editor tho, once u load something it stay loaded

[distant hollow]

It would, but at one point it will still happen after more and more objects were being used

We cannot expect our clients to keep having to restart once they start to lag

[frosty heron]

Shipping build have gc working

[remote meteor]

its not a good idea to gauge memory management from editor, you will atleast need to test them in standalone

[distant hollow]

So run GC from time to time randomly? Or is there some way that we can let the system monitor the memory?

[frosty heron]

Gc is automated

[remote meteor]

GC by default runs every 60 seconds, or during a hard level change

[distant hollow]

I see

[frosty heron]

I see, that's good to know

[distant hollow]

So GC wouldn't quite help in this case I suppose

Hmm

[remote meteor]

there is something to try, without the set material node

in a packaged build

does it still freeze?

[distant hollow]

If the error message appears under the Editor I suppose it should freeze up (temporarily) in the packaged build?

[remote meteor]

not necessarily

[distant hollow]

Memory management is more efficient in packaged?

[frosty heron]

Editor don't even flush loaded objects when you stop playing in editor

Have to do full restart

[distant hollow]

I see

[remote meteor]

if we dont want to guess whats the problem, we can use profiling to look for them

[distant hollow]

How do I do that

[frosty heron]

In packaged build I can actually see my objects being unloaded

[remote meteor]

but you would need to learn how to use Insight

[distant hollow]

How steep is the learning curve?

BTW for the Materials
If I am using Material Instances
Would it still help improve if I used soft referencing for the Material Instances?

[frosty heron]

No reason to load something to memory when they don't exist in the world yet imo

[distant hollow]

Then again my biggest MI is only 141kb
90% of them are under 20kb

[frosty heron]

Took 2 mins to load a level in my old project. 0 soft ref. Loading the player loads the entire game

[remote meteor]

MI references a Material

if the material has a texture

[distant hollow]

Ah

[remote meteor]

then the texture is loaded

[distant hollow]

So still better to use soft refencing for the MI?

[remote meteor]

the whole point of using soft reference is to prevent loading the entire game/content into ram when you are not going to use every single one of them at once

[distant hollow]

Got it

Thanks for everything guys

[remote meteor]

there is 2 points where a static mesh is heavy

the static mesh itself, and its texture

[distant hollow]

I'll need to convert the data and references now then

[remote meteor]

i cannot help too much since i dont have the package. I'll suggest looking into profiling the package with Unreal Insight to see

in the packaged game, what caused the freeze that you have mentioned

[distant hollow]

Noted

I think I'll start with conversion of the MI referencing to soft referencing first, it's gonna take a while and I would also need to convert the DataTable data somehow

1000+ entries there lol

[remote meteor]

#profiling message

switching between hard and soft refrence doesnt loose the path in your data table, just dont change the name of the variable

but you cannot use a forloop to async load and set material though

[distant hollow]

I have multiple materials and different objects may have 1-3

[distant hollow]

Oh

What might you suggest in that case? Manual counter loop function?

[remote meteor]

yes

[distant hollow]

Alright

[remote meteor]

for starters that will work, waiting for the asynchronous load to finish first, before proceeding the next one

[distant hollow]

Got it, have an idea of what to do now

Thanks 🙂

[dry surge]

Hi, is there a guide that explains how I can get players to place items in certain specific spots?

[short phoenix]

How do I get some code to run when a UI button I've set up is clicked or otherwise activated? I thought I'd see events or something in the button details but I don't have anything obvious.

[dawn gazelle]

If you've added the button to your widget, you have to mark it as a variable at the top right of the widget designer window when you have it selected. Once you've done that, you'll have some events listed for you at the bottom of the details pane like On Clicked, On Hovered, etc. Click the + symbol beside them and that'll add the event to the widget's blueprint graph.

[oak fable]

any clue why this error ?

[surreal peak]

@oak fable

1. The error means that the Character reference was null/empty during at least 2 occasions where it was being accessed.

2. You should not use the Character reference directly in the AnimBP graph. You are supposed to use it in its EventGraph and extract the info into new variables and then use those.
   The warnings in your screenshot are not for decoration

[oak fable]

its already in the event graph this is a new variable

[surreal peak]

You need to get the variables there too

You can't use the ref directly in the AnimGraph

[oak fable]

can you please explain a bit
what variable should i use there

[surreal peak]

@oak fable in your AnimBP you are accessing the Character to get variables from it. E.g. the SwordOut one. You need to do that in the event graph and make a variable there to save it in. Then use that variable instead. Same with the state function.

[stoic cradle]

Newb question. I'm spawning a projectile from a socket on the mesh (left hand). The projectile always seems to spawn a fair bit forward of the hand. If I slow it down using Slomo 0.1, it spawns just fine from the hand. If I speed it up to slomo 2.0, it seems to fire even further away. Is there something I can do to compensate for this?

I'm firing it on Event Tick using a bool to check if it should fire.

[oak fable]

i still cant figure that out

[surreal peak]

Could be that it applies the first frame of Velocity already?

[stoic cradle]

I set a timer for next tick on projectile EBP to enable movement. Velocity is not part of the movement component, it is part of the trace done on event tick on the projectile.

[oak fable]

okay so i delete them
add them in a new function and have it as thread safe or what

[stoic cradle]

One frame delay doesn't help.

[surreal peak]

With the left red node being the variable on the Character BP

And the right one being a new one in the AnimBP

And that new one you can then use where I crossed out the other one before

Same goes with your "IsStateEqualToAny" node

[oak fable]

now i kinda got it

[surreal peak]

I returns a boolean, so make a new Boolean in the AnimBP, set it with that and use that

[short phoenix]

@Datura Thanks. I will try it. Not what I would have expected.

[oak fable]

thanks a lot ❤️

[short ivy]

How can i attach an actor to another actor in a way that it actually snaps to the socket and not like way above or below that? See the provided images. I changed the z location of the socket by only 6 but the character moved like a LOT more. z= 113 to 117 didn't move the character at all. It is like at a specfic height it snaps to the next position which is far off

Could it be a physics problem?

I am disabling the actor collision beforehand so I don't think it's a collision problem

[stoic cradle]

Center of the capsule gets snapped to the socket IIRC. Move the socket?

[short ivy]

Nope, I did move the socket in the 2nd and 4th screenshot as you can see on the markes z axis value there

[frosty heron]

Right click the socket and add preview asset

Use your character as the preview asset and adjust from there

[short ivy]

it's not that I am having problems with the socket placement

I think y'all didn't understand the problem

the character doesn't 100% snap to the sockets position. The placement on the z axis is either like the 1st or the 3rd screenshot. There is no in between position, no matter what I choose for the socket z axis value

[silent drift]

Is there a way to change fall-speed without changing gravity scale? I have a wall-slide feature and when I wall-slide I would like the character to fall slower, but ideally not change the gravity.

[frosty heron]

Change movement mode when you walk slide and change the gravity when you are in the movement mode you selected

[silent drift]

Ah, hmm, so you mean setting up an enum or such for different movement modes? Or is it someting already built in? (Sorry new to unreal)

[gentle urchin]

There is built in

On movement mode changed

And SetMovementMode 🙂

[silent drift]

Interesting! Just saw it in BP and in the docs. So I guess I need to setup a different movement mode and switch to this when wall-sliding and then going back to normal when not. 🙂

Thanks! I did not know about this one, will look into it and see what I can figure out!

[gentle urchin]

It could just be "Custom"

I see many use flying

With flying you're unaffected by gravity

And can apply your own

[silent drift]

This looks too simple, is this what you mean? Again, sorry, trying to figure this out,. 😄

[near prism]

When setting a text widget's text via BP by converting a string to text, the wrapping gets messed up.
If I instead use a literal text and set that, the wrapping functions properly.
Anyone know how to fix the case when converting from a string?

[frosty heron]

Don't forget the onmovement changed

It should be an event on the cmc

[short ivy]

Btw it was because of the foot ik rig lol

IT'S ALWAYS THE FOOT IK RIG

LAWD

anyways, when the next person comes around the corner with this problem tell em ^^

[stoic cradle]

Does anyone have any idea how to fix this? I'm spawning a projectile from the location of a socket on the hand. At normal gameplay speed, the projectiles spawn very far away. In slomo, they appear to spawn directly from the hand. I'm using a projectile movement component with an initial speed of 5000.

The results are indentical in third person.

[gentle urchin]

Multiplayer? Local prediction?

Nvm prob just the speed

[stoic cradle]

Not multiplayer, so its not a replication issue.

[gentle urchin]

Is it individual actors or some niagara effect?

[stoic cradle]

Individual actors.

Simple actor with a movement component and a static mesh.

[gentle urchin]

Tried 0 initial velocity, and setting velocity on beginplay?

Kinda unintuitive but

[stoic cradle]

Same result.

Setting initial to 0, max to 5000, and this on EBP.

[gentle urchin]

and you're ofcourse not using velocity during spawning

Pooling is a good tip , generally speaking

[stoic cradle]

If I put a Delay Until Next Tick before the Set Velocity, it spawns them in the hand just fine, but they almost appear to warp away.

[gentle urchin]

they'd move pretty far in a tick tho , depending on framerate

5000 *0.016 = 80uu(cm by default) at 60fps

[stoic cradle]

I understand, I was just hoping for something a little more visually... smooth.

[gentle urchin]

You could lerp up the speed

Lerp 0 to 5000 over .. .5 ticks?

eh, idunno

not sure that's nice either

constant acceleration up to max speed , from close to 0 would prob look ok

[stoic cradle]

I'm assuming my math is correct here, but this seems to smooth it out quite a bit.

[gentle urchin]

I d just do delta *(forward vector * 1000) as the added velicoty

[stoic cradle]

That works, just might be a bit too slow. Looks really awkward when strafing now.

[gentle urchin]

Adjust the acceleration to suit your needs

Maybe accel is 5000 ? Idk 😄

Maybe 10k

Maybe you also want an initial of > 0

[stoic cradle]

Just took some tweaking, but I found a reasonable spot. Thanks.

I set a really high multipiler for the delta before feeding it in. They spawn close enough that I can see them, but get up to max speed very quickly.

[young meteor]

Any way I can add multiple entries into an array at once? (just to avoid blueprint clutter)

[gentle urchin]

Make array -> append

Altho i must say this looks suspicious 😅

[young meteor]

Right, okay.

Making a stat display for each tower. Just want to collapse all stats that are 0 anyway. Player don't really need to see them.

[gentle urchin]

Is this in a widget bp ?

[young meteor]

yeah

[gentle urchin]

Id create stat entries dynamically

So for each stat -> if value > 0 -> create stat entry

[young meteor]

Thinking...

[gentle urchin]

Processing...

[young meteor]

haha

I see your point "sorta". I'm using a widget inside this widget for each stat line.
I could make an array or map for each stat line, and loop through them in the end to create a widget (line) for each?

Is that what you are saying?

[gentle urchin]

Nested widget is exactly what i ment aswell

So whenever its initialized, it loops over the stats it has, checks that they're above 0 (or whatever treshold fits) and if so. Create the stat entry widget and add to the vertical box for display purposes

So you dont have widgets that are collapsed for no reason (not that it matters but it does )

[young meteor]

I have 2 small complications on top of that.

1. If slow chance is 0 for example. I also want to exclude slow time and slow amount.
2. I have an option to only show primary stats, and detailed stats too.

[gentle urchin]

Ah ok

Gotcha

That makes it a tad worse

Since it relies on other stat

[young meteor]

right

Feel like it is almost as complicated then. Probably just me being a noobie here.

[gentle urchin]

Relying on other stats , youd need to check if they exist aswell before creating

Ugh

^^

Just ingore my suggestion then

Vb crit -> if critchance > 0 -> set visible, else collapsed

[young meteor]

Vb?

[gentle urchin]

But wait

It doesnt really rely does it

If critchance =0, so should critdamage, right ?

[gentle urchin]

Verticalbox

So store crit values in its own VB, which is collapsed if CritChance ==0

[young meteor]

Critdamage not relevant then.

[gentle urchin]

Yeah but critdamage would also be 0 in those cases, right?

[young meteor]

No, just not relevant. 😄

[gentle urchin]

Rip

So VB it is

[young meteor]

Honestly don't want to nest widget elements if I can avoid it.

Widgets are my biggest enemy at the moment. Can never make them scale/behave right.
Would rather complicate the code slightly and reduce widget complexity in my case.

[gentle urchin]

having them in a VB doesnt change anything with scaling tho

[young meteor]

I appreciate the suggestion though. I just really don't understand those widgets well. Always spend hours trying to figure out which element is acting up because of a size, padding, or third thing.

[gentle urchin]

but alright

[young meteor]

At this stage I often find out by collapsing elements one at a time. The more elements there are, the more hair I loose. 😄

[gentle urchin]

I always nest mine as they're far easier to add/remove/disable by code ^^

can even remove entire 'sections' of a widget since its nested

[young meteor]

I bet you are right. Need more reps under my belt with widgets before I do it.

[floral stump]

why that big difference?

[tawdry surge]

Is there?

[strong halo]

stupid question: is game state purely a container or can it contain logic?

[tawdry surge]

It's a class like any other

[spice shell]

Quick question - I know casting should be avoided where possible due to the hard reference it creates, I assume this is the same for an example where when creating a Widget, you pass in an actor reference as a variable?

[mossy merlin]

hello

quick question , there is many difference between ue 5.2 and 5.3 , can someone explain what did they changed about the tag section

[frosty heron]

Yeah. Bp problem

Casting is unavoidable when you can't cast to the base class.

U still have to do it. Just be mindful about chaining hard references

[frosty heron]

What's the difference? Ask in #gameplay-ability-system maybe

[mossy merlin]

thx

[queen heron]

I seem to be doing something wrong here and I don't know what

[versed sun]

Use Floats
5/53 = 0(Int) , 0 * Enemy Points = 0

5/53 = 0.0943(Float), 0.0943 * Enemy Points = What you want

[queen heron]

oooh

yeah makes sense

integers got no doubles

nice

enemy points got a value of 3000 by default btw

[idle pelican]

Yoo folks, Im struggling a little bit with Data Tables as arguments for functions. I want to have dropdown for selecting specific row from specific data table, but I cannot achieve that when using DataTableRowHandle type as input - it allows me to choose DataTable but I cannot choose row name from dropdown. Basically I want to achieve the same result as Get DataTableRow has

[trim matrix]

the calculation returns the correct result: int(5/54*3000)=277

[queen heron]

Yup

[trim matrix]

yep

[versed sun]

yip

[frosty heron]

Wdym? Show me your function

[idle pelican]

For now its empty. I just made it for example. As a final result I want to have function PlayVO that plays VO from DataTable with additionall info.

[frosty heron]

What is play vo?

Btw I'm just guessing what u want to do at this point

But what u can do is get all row names

So create a function that had data table and fname as the row name

Has*

For input*

Actually I get brain fart sorry

In the train rn but I will look into it when I get home

Need editor to actually see it

[idle pelican]

Basically I want to have DataTable that is populated with voiceovers and additional information about them. Then in bleuprint I want to choose from dropdown what I want to play in such situation. I want to avoid typing the rows name manually bcs everyone can make a typo etc. So basically I want to have the same logic as GetDataTableRow node has as an input, but I want to have my logic inside this function to handle data.

[frosty heron]

You should never write the row name manually. You can use get all row names node and just populate a drop down with it

Getdatatablerownames*

[teal dove]

Hey can someone explain why the dot product is not working right? I'm using 5.3.1, the static mesh is perfectly aligned with the target.

If I use "Get Dot Product To" it correctly returns 1 as the output, but not if I use the dot math node like in the screenshot.

[idle pelican]

Thats why I want to have dropdown for row name in my inputs for function as well

[frosty heron]

I c what you mean. I don't think that's something that is built in though 🤔

[tawdry surge]

@teal dove forward vector is already normalized, and it wants two directions. You gave it a direction and a location

[frosty heron]

You can populate a drop down in widget at run time by using getdatatablerownames but I don't think that's a thing you can do in editor

@idle pelican but really u don't need to do that?

[teal dove]

Oh I didn't know that, it worked before so I was wondering why it gave me different results now.

Then what should I input instead of the targets location?

Also if I instead of the forward vector use an actor location for self and the target, and normalize that, it also doesn't give me a result of 1. Why is that?

[frosty heron]

All u need is

1.Populate dropdown with data table row name (it can't be mistyped since we get the data straight from the dt)
2. Have a button that passdown fname argument from the widget drop down.

Your function will look through the data table, passing the fname from the drop down to the row name.

On row found break struct. Play sound from the corresponding data table

@idle pelican

[tawdry surge]

@teal dove if you are trying to find out if it's directly in front of the player, then I'd get the unit direction between the player and the target location and then dot that against the forward

[idle pelican]

But I think you are thinking about run time solution. I'm talking about solution for devs, to help them with implementing VOs

[frosty heron]

Yeah I don't know exactly the end goal. I guess u are making a plugin or something

[teal dove]

I want to make a turret that has a limited angle, so I need to see if the target is in the forward angle of the turret, hence why I want to use dot product.

[frosty heron]

Or marketplace asset

[idle pelican]

Just system for my game, to help developers with developing

[frosty heron]

I would try to ask #cpp because it's clearly not a thing bp can do afaik

[tough flower]

can anyone help me with a packaging error (is this the right channel?)

[tawdry surge]

Yeah then that will work. Then just check if the dot returns between like .7 and 1

[frosty heron]

#packaging

[idle pelican]

Yea, I’ll try probably. Thank you for your effort ❤️

[tough flower]

thanks

[teal dove]

Thanks for your help! I got it working now by using the vector between the static mesh and the target, instead of just the targets location for the second input. 🙂

[frigid plume]

Hi, i have a question pls,
Whichever way I turn, it still throws the line in the same direction;

[supple dome]

thats yaw, not pitch

[frigid plume]

Yes, this time there was a change, but I don't want it to work like this. I want to detect 45 degrees left and right of the character

and likewise for the back

[supple dome]

then get the yaw and add or subtract 45

[frigid plume]

I'm a little closer to what I want to do, thanks :). I'll let you know when I can do exactly what I want

[thorny yew]

Hi can anyone help at all? Got my blueprint working but when i add an actor to a varibale it works at first, until i save or reload the project, it then displays the name of the actor but doesnt trigger anything as if it cant find the actor anymore until i reselect the actor in the variable again.. any ideas??

[lunar sleet]

Add an actor to a variable? What are you working on there?

[thorny yew]

So that when a door is triggered open it will get the public variable actors to interact and will trigger the interaction for that actor

[lunar sleet]

What type of variable is this, a struct?

[thorny yew]

So at the moment Pointlight 3 should explode when door is opened which it does, but when saved and closed and reopen project, Pointlight 3 will remain there but not work.

[thorny yew]

Give me 2 seconds to check

I believe an array in a struct

[lunar sleet]

Bp structs have lots of issues but if you’re trying to save a ref to an instance post-runtime that won’t work

[thorny yew]

Its defiantly before runtime isnt it a UE5 issue atm?

[lunar sleet]

Well the instance doesn’t exist yet unless you’re using level bp (not recommended) hard refs

So just to understand you want a bunch of lights to explode when you open a door?

[thorny yew]

Correct

It works once or as many tiumes as you want. But after closing down UE and opening breaks it

[lunar sleet]

Is it all lights in the level or specific ones?

[thorny yew]

All light references

[lunar sleet]

Ok well just do on door open, get all actors of class, select the light BP and make them explode

If you end up needing to be more specific you can use tags to filter

[thorny yew]

So its basically structs are broken in UE atm or as in not saving data correctly when closing application?

[lunar sleet]

Bp structs, not cpp ones

[thorny yew]

ahh so if i did it in CPP

it would work?

[lunar sleet]

Maybe, tho afaik you can’t save an instance ref because it’s not persistent, instead you need to save its vars and recreate it/modify it at runtime

[thorny yew]

Ok that kinda makes sense, so it needs to select it as a variable but is not persistent and doesnt stay there when saved.

[frigid plume]

@supple dome thanks a lot ❤️

[thin cradle]

is there any alternative to timelines that can be used in components? I have a component inheriting from SceneComponent that needs to rotate from its current rotation to a target over time when a function is called, but timelines seemingly can only be used directly in actors

and I don't wanna enable tick on all instances of the component for obvious reasons

[lunar sleet]

You could use a set timer by event ?

[thin cradle]

isn't it just going to call a function/event once on a delay? I need the component to rotate from A to B over a period of time, if possible with a curve used in the lerp

[faint pasture]

Just enable tick then re-disable it

[thin cradle]

you can do that at runtime without problems?

[teal dove]

Does anyone know how to get the forward vector of a component in it's relative / local space?

[dark drum]

Yes.

[thin cradle]

thank you

[cunning yoke]

If anyone have a few minutes I would love some help on a small problem I just can't figure out.

I'm changing my movement to a more "simple" version. Right now it is setup identically the video below. What I want to do is change the sprite to 2 directional but have up and down use the last direction as the sprite.

https://www.youtube.com/watch?v=z1RMDMKcROQ

Please PM me if you got a few minutes. Thanks 😊

[shy canyon]

Is there a way to rotate all selected objects but using the pivot of a my last selected one?

[faint pasture]

Isn't that just 1,0,0?

or do you mean relative to parent

[native creek]

Not sure how good this solution is, but what came to mind is temporarily attach all those selected objects to the pivot actor. Rotate it. Then detach them.

[faint pasture]

That would def. work, if be a bit clunky.

[shy canyon]

The only problem I can see is I have more actors than just static meshes so that might get weird

[shy canyon]

relative to parent

this is what I initially tried

I tried changing the pivot of everything to my last selected object

[verbal cloud]

hey, i have this code that spawn skid marks when the vehicle is either slipping or skidding and the wheels are touching the ground. The problem that I have is that when I try to add audio to the code, the audio plays after the skid marks have spawned rather then playing as the skid marks are being spawned. Asking for help.

[hollow cove]

why would opening any related widgets cause a stack overflow crash

i had this yesterday and had to delete the hud or something to make it work before editing them and now its doing it again

[gentle urchin]

Could check the .... racing sample

[hollow cove]

oh i think ive added a widget to a widget where its a child of that widget

now i just gotta figure out how to break the references so it opens

cant even right click any of the widgets

well that doesnt help

how can i set a parent without opening it

[verbal cloud]

i'm new to using unreal and haven't learned all the terms yet, could to please explain what you mean by the 'racing sample'

[teal dove]

Yes relative to it's parent.

Although what I really need is a way to clamp a rotation relative to it's parent.

[gentle urchin]

One of the sample projects that epic has provided is a racing game

It has skid marks and sounds

You could download that and check how its done there

[verbal cloud]

thank you, i'll check it out

[faint pasture]

You'll want to use Transform / Inverse Transform Direction

[hollow cove]

if anyone searches this problem in the future: add this to default engine config

[ebon olive]

hi guys, I am planning to boost my character speed once i hold my spacebar (under IA_Boost) while im holding my D button (Under IA_Rotate), anyone know if this is possible?

[lunar mulch]

Hey guys, creating a HUD effect for whenever i fall from heights. It's working, but the "Remove from Parent" node doesn't always Remove the HUD effect, and i cant figure out why. Here is an image of the code:

[frosty heron]

Once it's fixed we just remove it I suppose?

[hollow cove]

yeah you cant add a child to a parent that has their parent as that parent, i assume its making some sort of infinite loop

[frosty heron]

yeah circular dependencies

[hollow cove]

it didnt even occur to me for a day idk why

[lunar sleet]

Use breakpoints to find out what’s happening at runtime

[lunar mulch]

Using print strings i havent found out anything strange happening sadly

Does that code look like it should work to you atleast? Just trying to get a 2nd opinion to make sure atleast the method im using is correct.

[gentle urchin]

Should be alright, if only one widget is ever created

[lunar sleet]

In theory. But for all we know you could be adding the effect somewhere else.

[gentle urchin]

I would wildly guess its added twice

[lunar sleet]

We can’t see your entire code plus doesn’t this stuff usually get handled with post processing effects ?

[gentle urchin]

Thus first ref is gone

Id store it in a var on creation ..

And only create one..

[zealous moth]

@lunar mulch I think your montages doesn't complete. Put all pins in it

[gentle urchin]

Wild guess ofc.

Solid point Zanet

[lunar mulch]

Cheers, gives me plenty of stuff to try out

Btw, your saying doing this stuff with Post processing effects might be a better Method?

[lunar sleet]

Yeah I was gonna suggest checking the completion pin but he said he tested with print string so I assumed competence

[lunar mulch]

Cause i don't like this workflow at all for doing overlay's lol

[zealous moth]

But he said it doesn't always

So sometimes it does

[lunar sleet]

My argument stands 😀

[lunar mulch]

Im not sure how to animate image transprancy etc in Post processing tho, is that a thing?

[zealous moth]

It is

[lunar sleet]

I mean that’s how I would think about it. Could try #visual-fx

[zealous moth]

You lerp a translucent or masked material

[lunar sleet]

Or I guess materials

[zealous moth]

It won't work for mobile though

[lunar mulch]

I see

Hmm, cheers guys, plenty of food for thought. Yall brilliant as always

[zealous moth]

@ebon olive I don't get it. You want to only boost once if space is held while D is also held??

Other than complex boolean cases on the pressed down and let go I don't know of any other method

[lunar mulch]

It's stored as a variable on Creation isn't it? (I might be mis-understanding you thats why im asking). Also, how would i make sure to create only one?

because i think your on the money with your comments

[lunar sleet]

IsValid check

Promote return value to a var, and before the create node, if invalid, create it, otherwise bypass

[gentle urchin]

Its only cached as an output. Youd want to promote that to a variable

[lunar mulch]

Just to confirm i understand here's an image of what i've done

Is Valid is continueing to play the montage and skips the Widget creation, and Is not Valid does the same, but also creates the widget

[pseudo anchor]

does rinterpto need to be called every frame?

[lunar sleet]

No, but setting the output value should be on a tick or timer

[pseudo anchor]

oh ok thanks

[lunar sleet]

Or timeline maybe

[lunar sleet]

Correct

[lunar mulch]

My head hurts, doing this will only create the Overlay once, and it won't show up anymore if i fall a 2nd time. So that ain't a solution either sadly.

Also, even more annoyingly, i got the same code on another Landing animation, and that one is working without any issues.

That Animation is Root motion tho, so i guess because the character isn't controlled it's not interrupting the Widget, and as a result doesn't bug out. (i guess?)

Weird shit

[lunar sleet]

Sure it is, just set it back to None when done

[lunar sleet]

Same code as in you’re calling the same widget, montage, etc?

[lunar mulch]

Yeah, and the Method is the same, its basically the same code, the difference is the animation that's being used is a Root Motion and as such i've disabled Input for that animation

On the one im having problem with, the player is supposed to still be able to move as the widget is being called, and i think that's what is causing the issue.

This the working one:

[lunar sleet]

Don’t drag spaghetti behind nodes, you have a var, just get it again

Having nearly organized code makes it easier to debug

[lunar sleet]

Also uh, you’re doing multicast on a widget creation, not sure that’s right

[lunar mulch]

Hmm, the Multicast plays The Landing animations

[lunar sleet]

Oh nvm I misread that

[lunar mulch]

No worries hehe the code is messy

[lunar sleet]

It’s not actually that bad just rmbr once you’ve promoted something to a var you can just get it again as many times as you like

[grim sand]

Is there a way to translate a local vector to where it is in the world?

[keen widget]

can someone please tell me how to monitor varibles in runtime? i want to test and see how they change

[grim sand]

print strings or whilst your game is running, look at the bp and hover over the relevant variables

[grim sand]

You can use F8 to quickly go from controlling your game to controlling the editor

[lunar sleet]

Inverse Transform Location

[grim sand]

Ah yea, just found the transform location node. Do I understand correctly that the inverse version of the node goes from world space to local, and the non-inverse version goes from local to world?

[lunar sleet]

Sry, yeah that one

[grim sand]

All good, really appreciate the help!

[lunar sleet]

Forums had it backwards but docs say it like you did

[keen widget]

i dont understand, why its 0 0 0, nothing changes
its doesnt show me varibles

[grim sand]

Gotta love the discrepancies 😂

[grim sand]

Ah, it is because you are looking at the default value instead of the current value of the var

[grim sand]

As far as I understand it, you have to navigate to a place where the var is in the graph, and then hover over it

[keen widget]

oh.. thaats how its works in unreal.. i see.. ok.. thank you

[hollow cove]

whats the point of blueprint interfaces if you have to provide a reference to the blueprint youre sending something to

[lunar sleet]

Haven’t played with those in a bit tbh, I can’t rmbr if you can just get the player controller to send an interface msg or if it has to be that bp

[hollow cove]

im messing around trying to make a master widget for the menu right now and its getting annoying

[marsh oak]

How do I get add box collision node to work?

[lunar sleet]

Why add it dynamically if I may ask? Rather than just changing collision settings dynamically

[marsh oak]

Because I need to add multiple based on dimensions given at start.

Box
Box01
etc.

[lunar sleet]

At start?

[marsh oak]

on play

[lunar sleet]

Who assigns them

[marsh oak]

Player controller

[hollow cove]

the box collision is half of the box size iirc, you should try to get box extent

or wait

[versed sun]

Do it on Construction Script ,too

[marsh oak]

doesn't work there either

[hollow cove]

it might be a set size for that one, like 1 scale is 100 units or something dumb like that

[lunar sleet]

That’s not going to work if he’s setting the loc on begin play

[marsh oak]

I can't even get it to spawn

[lunar sleet]

Add a 1s delay after begin play and test if it works

[marsh oak]

Nope

[sand slate]

Hello! I have a question. I made a cound down timer (of 3 seconds) on the start of a game. But i need ai and the player to be paused or not able to move in these 3 seconds.

I can pause the game but than the timer for the countdown is also paused. And I can disable input for the player but I dont know if this works for AI aswell. Or is there a way to disable input for everyone (for only 3 seconds)?

[cyan drum]

Is this to be attached?

[marsh oak]

Yes

[cyan drum]

It may be spawning, but not where you think it is.

On the return node, do an IsValid check... get it to print true or false.

[night trench]

I have a pawn with capsule collision component (its collision set to the pawn preset) on which I'm simulating gravity with AddActorLocalOffset.
Strangely though, when hitting start, the pawn doesn't detect any collision and just falls straight through the floor.
What could be causing this? 🤔

[lunar sleet]

Also use breakpoints or print to double check the transform

[cyan drum]

Can you show us the setup please?

[night trench]

Of course, what would you like to see?

[cyan drum]

The pawn you wish to collide with the floor and its collision preset please.

Auto-correct 😅

[stark patio]

For some reason im getting an error here but i have no idea why. It is still there even if i remove my map from the blueprint. Anyone know why?

here is the only place i use the map (it is not done yet)

[marsh oak]

The is valid says it's working but I still don't see it being attached or being added to the level

[cyan drum]

In the world outliner, check for the box. If it is returning true, then it must be there somewhere (in an ideal world :D)

[hollow cove]

is it so small that you can't see it inside the mesh?

[cyan drum]

Have you compared your setup to the default unreal setup?

[lunar sleet]

Instead of feeding the location into the xform, break the pin and only feed in the location. Then right click and watch that value

[marsh oak]

Still nothing.

I'm spawning 4 just to make sure

[lunar sleet]

You missed a step

[night trench]

I have. In the collision settings there's no difference. The only thing I could really see a difference in is the lack of a charactermovementcomponent (which is exactly what I wish to unshackle myself from)

[lunar sleet]

Right click and watch value, then check the location at runtime

[cyan drum]

And it just phases through the floor?

Does your rectangle have collision?

[night trench]

Yes. Just falls straight through.
My rectangle has no collision, just the capsule.

[cyan drum]

Do me a quick favor and add block all dynamic to the rectangle please

[night trench]

Done, but still falls through the floor

[cyan drum]

Does the floor have collision?

[night trench]

The floor is setup like this

[cyan drum]

Did it collide previously?

[night trench]

Nope, never.

[marsh oak]

I'm not quite sure what you mean

[cyan drum]

F9 the box collision node, and monitor it's value when you hit play.

[lunar sleet]

🙂. Right click the input pin named Relative Transform Location, click Watch Value. Run the game, select the debugging object if necessary, and literally watch it

[cyan drum]

Is the correct actor being spawned at runtime?

I'm running out of ideas, unless we hop in VC and figure it out together 😄

[night trench]

It is, this is a new actor I'm using specifically to test out any collision ideas

[night trench]

I'm in pivot point!

[lusty hedge]

I'm having a hard time understanding the difference between interfaces and event dispatchers. They both seem to be simply an event that can have different functionality depending on the blueprint it is attached to.

[marsh oak]

The numbers don't move. I'm guessing they are supposed to?

[lunar sleet]

Depends, if it shows 0,0,0 it prly wrong, if it’s what you expect it’s fine but I would test by manually positioning a box at that location to see where it should show

[marsh oak]

It doesn't show 0,0,0. But! adding in manual locations did give me a second box but it doesn't show up in the outliner. Which is weird....

[azure sail]

Would anyone know why the first array everything works fine but after that each array get copied x6 when sent to the ui?

[thin panther]

They do have a lot of overlap. Your main difference is interfaces are class agnostic, whereas dispatchers are not. To bind to a dispatcher you need a properly casted reference.

To call an interface function you don't

So if it needs to be class agnostic, like interaction, use an interface. If it's listening to something specific from a specific source, use a dispatcher

[lunar sleet]

By manually adding I meant in your blueprint tab add box collision and paste that vector in its location

[grim sand]

Because you are executing the rest of your code on loop body, instead of on completed 😄

[azure sail]

Wow I'm dense haha

[grim sand]

Haha no worries, happens to everyone 🙂

[lunar sleet]

Clean up that spaghetti!😀

[grim sand]

So, why is it that the "suggest projectile velocity" node doesn't trace complex collisions?

[lunar sleet]

I’ve never used it, what are you going for

[grim sand]

The yellow lines are the debug path of the suggested velocity, and it is going straight through the mesh

[lunar sleet]

Why not just a line trace

[grim sand]

https://tenor.com/bUD5V.gif

You make a good point

[grave relic]

So, I've brought this up before, but I'm still kinda stuck. I'm trying to turn the player into different things like boxes, cans, even lawnmowers. I've managed to resize that capsule collider to match these shapes, but I've run into a snag. Like in the pic, when the collider fits a square, it can sneak through a triangle hole. It shouldn't, especially when the square's edges are clearly touching. Basically, I just want the mesh collision to work right, so the player can't walk through places they shouldn't. And I cannot just add colliders to the player, since if you have something like this, then the cube would push other objects. But the player could still move the box into the wall, until the capsule collider hit the wall, then it will stop. :/

[lunar sleet]

Can you see the char through the box?

[azure sail]

I hate to spam but why would break struct not show my custom Enum on the struct? the enum shows up in the editor window but not in bp

[lunar sleet]

Bp structs are all sorts of f-ed up, add bp enums to them on top of that and it’s gg

Cpp is da wei

[azure sail]

I thought I'd be safe since I made the structs and enums is C++

[lunar sleet]

Oh

I thought you meant bp made stuff

[azure sail]

I'm breaking the struct in bp to use the values to populate UI text boxes and stuff

[lunar sleet]

Try asking #cpp then, maybe there’s some other unknown factor

[azure sail]

Here is a screen in the widget graph

[frosty heron]

Do you use blueprint type macro?

Ahh nvm the cpp guys girl helping you

[azure sail]

I forgot to add a specifier in the enum class 🙃

[frosty heron]

Nope

Play sound 2d is a fire and forget operation, you can't get a ref to it

Use audio comp instead

Read the docs for more info

Also look at the target for fade out. It takes an audio component

[grave relic]

Sorry, I dont get how you mean?

[lunar sleet]

I’m wondering if you should just replace your char with a box pawn

Provided you can’t see through it

[grave relic]

Ah, yes I intend to, currently, I have it set up so there is an empty static mesh that just line traces and changes to whatever static mesh I'm looking at. I don't believe this will work long term, so I will change to possession. But with possession, I cannot figure it out. They all have capsule colliders or If I add custom collision, for example, to fit let's say a PC monitor. Then only the capsule collider will block movement. The rest will just phase through objects. And it wont stop movement.

[lunar sleet]

Only characters have capsules

[grave relic]

But don't I have to use a character? Tried setting up a pawn, and it cannot accept movement components. So I have been using the third-person character as a base.

[lunar sleet]

It accepts floating pawn movement comp

[tawdry surge]

Take anything except character movement

[grave relic]

Oh okay, I will look into that. And do you have an idea of how the collision could work? Will the image in my drawing be fixed? Does the pawn move based on whatever collision the pawn has? So I square cant fit into a triangle hole for example. If you know 🙂

[lunar sleet]

Collision usually works according to its shape. As for the hole it fits in, it depends on shape, angle, etc.. Can’t really tell what’s going on on your end, you might need to do a screen cap

[maiden yew]

Hey is there where I can ask for some help?

[frosty heron]

Ask question in relevant channel, maybe someone can help

[maiden yew]

If so, I am trying to make a log (cylinder with a capsule collision to detect if player hits it) roll down a slope. Currently, the log just sits at the top of the slope but if i make it very vertical it rolls down and then stops before it hits the bottom.

The log is simulating physics

Is there a way to allow it to roll down naturally?

(I am very new to learning UE5. Well UE and game programming as a whole (I know python but that wont help other than logistical thinking ect), so I won't know any complex ways of doing this - or the any way clearly 😂)

[frosty heron]

I don't think physich is an easy subject to touch. Have you tried to play around with the setting? Like change the mass, damp, etc

[dry surge]

How can I destroy items adding delay with blueprints?

[frosty heron]

You should be able to add force too to simulated objects

[maiden yew]

ive made the mass 1kg (used to be 100 which is default)

[frosty heron]

A log that weight 1 kg?

[lunar sleet]

Seems legit

[maiden yew]

thought maybe its too heavy lol

[lunar sleet]

Also #chaos-physics

[frosty heron]

U prob get better help in this channel

[maiden yew]

okay ty 🙂

[frosty heron]

Ask the physich guys

[lunar sleet]

Can you rephrase that?

[dry surge]

I was following this tutorial:
https://www.youtube.com/watch?v=XaPECMAKbSI

But basically I would like to destroy an item for example after 5 seconds, in the video there is no blueprints. I want it gets destroyed after hitting the ground after 5 seconds

[lunar sleet]

Ok, yeah so you’re looking for fracture not destroy. Not your fault tho, the UNF guys are just as bad as most tutorial makers out there

#chaos-physics is where you want to ask about the fracture system, there’s also some stuff on the learning portal

You basically need to take a mesh, fracture it, and then add the newly created geometry collection dynamically at runtime after 5s

Might need to add some force to it if it needs to break while already on the ground but it depends

[maiden yew]

use delay bp and then destroy actor?

from what ive learned for now anyway haha

[kindred adder]

Lies... this just cost me a bunch of time >_> It's not radians but a specified period.

[lunar sleet]

That’s not what they’re looking for as far as I can tell, just bad terminology

[maiden yew]

Do do with my earlier issue, I have found out theres some weird collison box

anyone know why?

im not able to click on it at all either

[lunar sleet]

That’s a capsule

Is it in the outliner?

[maiden yew]

honestly no idea, i just started my journey the other day

[lunar sleet]

Did you by chance add an extra capsule collision in your blueprint?

[maiden yew]

Yeah so i could have colision with the character and call it with the overlap

[zealous moth]

I am using a plugin called the dialogue plugin. It allows you to make these charts with custom nodes.
What is this called in the engine? I want to build the same but for turn based combat

[maiden yew]

its not shown in the view port

[lunar sleet]

It might be another object. Try to find it in your level’s outliner tab

Click on each thing to see what it is

It should highlight it

[maiden yew]

nope, nothing :/

[lunar sleet]

I’m not sure what you mean, like a state tree?

[zealous moth]

yeah, something like that

I looked up state trees but it's not it...

[lunar sleet]

BTs?

[lunar sleet]

Guy, there’s something obviously there, you’re not showing an extra capsule for no reason.

Show your my blueprint tab for the log

So we can see all its components

[maiden yew]

in the outliner tab ive clicked everything and it does not highlight. only shows when i show collisions

[grave relic]

I will try, best case you dont hear from me again. _Worst case you will see a video here 😛

[lunar sleet]

K now show show your outliner

[lunar sleet]

Are you rotating or adding anything to it in bp?

[maiden yew]

i think i rotated and scaled it ye

[frosty berry]

I have placed a turret on a moving vehicle. To limit its downward movement (camera based off of mouse pitch and yaw), I added this to the turret blueprint.

Is this the right way? I noticed that when the vehicle goes up hill, the turret is still limited by its setting and I cant aim full range. Target is the camera

[lunar sleet]

Dynamically? Like with code?

[maiden yew]

oh, no just in the view port

[lunar sleet]

Delete the capsule component

Compile, save then show what it looks like in the level

[maiden yew]

figured out the issue, just dont know how to fix it lol

when i click the log, the random capsule is now orange

but the one i have made is not there anymore

it takes collison from the character with that capsule, but the collision im detecting for the player, where the log actually is @lunar sleet

[lunar sleet]

I don’t understand. Did you delete the capsule component inside your Log bp ?

[maiden yew]

I have done actually, i didnt think it was needed but i added it back so it could colide with the level.

did i add it back on wrong?

[dry surge]

Thank you. I am not sure how to add the newly created geometry collection dynamically. Can you explain a little bit? I follow everything in the video, so I have fractured the mesh

[lunar sleet]

Idk what’s happening anymore z is that your log?

[maiden yew]

yeah its the mesh

[lofty rapids]

it's probably not a new capsule, it's most likely the same one you had and something is rotated without the capsule

[maiden yew]

how do i rotate the capsule to match the mesh?

[finite maple]

i need objects to not fly away on key release

[lofty rapids]

maybe is valid ?

check what happens

[frosty heron]

You can't call that function after you release

Releasing will set the grabbed component to null

[lunar sleet]

This is no easy topic but basically you can either add a geometry collection component and set its rest collection or you can just have it there by default set to invis and no collision and just make it visible and turn collision back on at runtime. Again #chaos-physics is better for this

[frosty heron]

If you want to call it after release. You need to cache the grabbed component before releasing

[lunar sleet]

Did you add a capsule component instead of capsule collision somehow?

You might need to just delete that bp altogether and start fresh

[frosty heron]

@finite maple get rid of the absorb function entirely.

Before release component. Get physich handle, get grabbed component. Promote it as variable. Call it released comp.

Then AFTER the release function. Get released comp, set all physic velocity to 0,0,0 then set release component to none.

[finite maple]

all physic linear or angular velocity tho?

[frosty heron]

https://docs.unrealengine.com/4.27/en-US/API/Runtime/Engine/Components/UPrimitiveComponent/SetAllPhysicsLinearVelocity/

Your on click only fade the sound, it did not play the sound

Play the sound first then fade

[finite maple]

how do i set it to none?

[frosty heron]

Promote the return value so u can get the ref

[frosty heron]

That's it play and try it

[low venture]

How is it possible to select a custom blueprint base-class as LevelScriptActor? I created one from EnvironmentLevelScript (C++), but I cannot select it in the list.

[finite maple]

https://tenor.com/view/beating-up-beating-up-lilo-fight-beat-up-beat-down-gif-19482217

[frosty heron]

The sound loops?

[finite maple]

it WORKS

[frosty heron]

Spawn sound. Promote to variable call it mysound

Button click -> get mysound -> fadeout

[low venture]

So it's not possible to make a levelscriptactor-BP and use it for a level?

[frosty heron]

Ask in #cpp

[low venture]

Don't think this has to do with C++. You can try it with BP only.

[frosty heron]

You are trying to reparent it with a cpp class?

[low venture]

Create a Blueprint from LevelScriptActor and try to use it as parent class for a map.

You can't select it.

No. I want to use a custom Blueprint-LevelScriptActor in multiple maps.

[frosty heron]

Your best bet is to ask the smart guys in cpp imo. I doubt most ppl here touch the subject

[low venture]

I'll try.

[frosty heron]

First time hearing it, I don't even know what that does

Should work

Try to be more tidy

Well I dunnoe have u actually spawn it in event construct

And have the fade out in your button click event

So sound keep playing?

It's 3 am I can't get up and try it in my editor.

Try to print string just to make sure that the event is fired. Other than that, I will try it tomorrow

[austere bolt]

Hi people, is there a way to get env variables directly from blueprints?

[frosty heron]

Well I dunnoe what you do in your end. You also talk about level load which may cause reference issue. I will check tomorrow if the node actually work or not

[mild ibex]

anyone know how to encode with base64 or does this require a plugin to work?

[twin path]

Question, I would like to send a OSC server signal from my level blueprint to my actor BP to trigger an action. How can I do this ?

[lunar sleet]

See #rules and stop cross-posting

Maybe move your message to #audio after you delete duplicates

[heavy lion]

Anyone know how i might alter a material value from within a widget blueprint?

[thin panther]

I don't see why that needs to be on event tick

That delay in event tick is certainly not great

You also have an issue there checking if a float is == 0

You should be using nearly equal

What no.

You should be using nearly equal

[low venture]

With the same functions as always @heavy lion ?

SetMaterial?

[thin panther]

Yes and you shouldnt use == with a float

You should use nearly equal

[lunar sleet]

Lel, can’t wait for FPE to f up their values 😀

[signal perch]

no matter which settings I call, it only gives 3
whereas the settings of the game are different
help

[low venture]

If not changing the float with any mathematical operations, == is okay.

[lunar sleet]

If not affecting the float in any way, then checking if it reached 0 would be utterly pointless wouldn’t it?

[heavy lion]

@low venture I'm not sure what you mean. I have a material with a float value 0-1 lerp.
The material is referenced inside a widget blueprint and A dynamic material is set up there with the variable exposed and editable.
However, inside the widget blueprint. I cannot animate it using the animation tab.

[low venture]

You could use a timer instead of a timeline @heavy lion

[heavy lion]

Cant find a way of animating that variable here

ah

a timer in the widget or from another class?

[low venture]

In the widget @heavy lion

[lunar sleet]

Can you use timelines in widgets? Genuinely don’t know

[low venture]

I don't know if it somehow works with this animation tool.

[heavy lion]

Doesnt look like it

[dawn gazelle]

This is setting the value of the parameter value only once on the pre-construct. Changing the "Value" variable later on won't automatically update the parameter value on the material.
Whatever event you use to trigger when you want the animation to happen can be used to open a gate that is connected to tick. The output from the gate then is updating every frame which would then allow you to use a lerp and set the scalar parameter value.

[low venture]

@lunar sleet No, because timelines are components and user widgets cannot have components.

[lunar sleet]

Ok good that’s what I thought

[heavy lion]

I am aware of that. I am trying to find a way of animating it after the fact

Whats the point in creating a variable for it if i cant alter it at runtime

[supple dome]

wait, why are you not animating the material directly in the timeline?

[dawn gazelle]

So you have the current value stored in which you could then use an interp node to know what the current value is to then move towards your target value. You can't use the widget animation tool to do this.

[lunar sleet]

If it’s just a matter of changing a material instance you can do that anywhere else

[heavy lion]

OK. So I would need to animate it from within another blueprint

[dawn gazelle]

You can animate it within the widget.

Just not using the animation timeline tool.

[heavy lion]

How?

[dawn gazelle]

Use tick as I just said above.

Interp between one value to the other.

[dry surge]

It works a little bit. It hides the static mesh to add the geometry collection component, but I think there is a better way to do it?

[supple dome]

am i missing something, is it not an animation? why not use the animation timeline?

[low venture]

This could become a mess if using multiple animations @dawn gazelle

There is a Niagara plugin that enables using Niagara assets in the UI.

[lunar sleet]

There’s several ways to work with fractures, read docs and look up videos on the learning portal

[heavy lion]

If using tick inside the widget, how would I stop and start the animation without timelines?

[low venture]

"Niagara UI Renderer"

[supple dome]

why are you not animating the material in the timeline, instead of the variable? (not rhetorical, im wondering if there was a problem)

[signal perch]

help

[dawn gazelle]

You can't use the animation timeline to manipulate a variable over time unless you're calling an event from the timeline which means you'd have to add in the call every single frame anyway.

[low venture]

I also don't find a way to add a track for the dynamic parameters of a material in the animations-tab @supple dome

[supple dome]

I have tons of materials animated in my widgets, never been a problem

[heavy lion]

I cannot find how to access the variable within the material

[dawn gazelle]

Not if you design your event calls correctly and separate things into functions. It can be fairly straightforward to manipulate multiple variables over time without being messy.

[heavy lion]

Sod it. I'm just gonna add to viewport, play the animation from there.

[supple dome]

its right there, border material, the material params show up

[dawn gazelle]

That's specifically about a brush. That's not about a material parameter within a material instance.

[supple dome]

huh

its a material parameter within a material instance

[dawn gazelle]

Oh. Ok then, I stand corrected. That seems good 🙂

[low venture]

Oh, yes. Then there's something wrong with your material @heavy lion

[signal perch]

please help gives the wrong settings

[lunar sleet]

I don’t understand what you’re looking for

[signal perch]

no

does not give the correct value even though the settings are different bro

[lunar sleet]

Ah, I c what you mean. Idk if the scalability settings are connected to your project per se. Those settings are more for what you see in editor I think, but maybe #visual-fx would know better

[eternal cradle]

Are you testing this on a packaged project? Low-Cinematic is numerated from 0-4 and on a packaged build, default scalability is set to Epic, which is 3

[signal perch]

no in unreal

the result is the same even if I change the settings :(

[eternal cradle]

hmm

[signal perch]

I tried it in other projects and it's like this again

version unreal 5.2.1

[eternal cradle]

let me try reproducing it

[signal perch]

yeah please

[eternal cradle]

i cannot seem to reproduce the issue

maybe it is getting downscaled based on your system automatically

[signal perch]

nope

[lunar sleet]

Could be, if you have shit hardware, the engine automatically downscales some stuff, like Nanite for example

[signal perch]

I'm well equipped

[eternal cradle]

then maybe set it to max settings on begin play? see if that works

[signal perch]

rtx 3070

[lunar sleet]

Odd. Are you sure you’re not setting these manually somewhere else?

[signal perch]

yes

[lunar sleet]

Have you tried restarting the engine just for everyone’s sanity?

[signal perch]

yess

I can't find any rational reason :(

[lunar sleet]

I’m out of ideas. Maybe check with #visual-fx crew but idk

And also make sure your .inis are not overriding or w/e

[shrewd lantern]

hi guys. Im trying to move an object to a height of 0, by only moving the object in the direction its is already facing

anyone know how to solve this problem?

[faint pasture]

Line Plane intersection node

[shrewd lantern]

ooo, thanks, il try it :).

[thin umbra]

Hey guys, I need help with animation blueprint.
How can I get the time when my animation has fully blended to get into the transition?

Right now, all the methods to trigger a transition don't take into account when the animation has fully blended in the transferring between state machines

[eternal cradle]

maybe this node can help

[thin umbra]

thank you. I will try it

It doesn't work; like the others.
All of those nodes take the animation time without any modification

This node takes my animations and slows it down, but the transition doesn't take that into account with this kind of elongation of the animation

also one thing that is perplexing, is I don't know why this blending behaves differently than this blending here

this one doesn't do the same effect; just cutting the animation

[foggy loom]

is there a good blogpost/article on getting familiar with blueprint? I'm coming from the C++ side but want to better understand how to leverage blueprint in conjunction with C++

[foggy escarp]

Lots of youtube videos

there are some Unreal forum posts too

[foggy loom]

I'll start with the posts, thanks!

[thin panther]

There's an guide on converting BP to c++ but the name is a misnomer. It shows you both ways

[foggy loom]

https://dev.epicgames.com/community/learning/courses/KJ/unreal-engine-converting-blueprint-to-c is it this?

[thin panther]

The general rule of thumb is use bp for subclassing cpp base classes, setting up asset references and small gameplay tasks that are suited to scripting

[thin panther]

Yeah

[foggy loom]

awesome, thank you very much!

[thin panther]

No problem!

[foggy escarp]

Id also recommend to use bp for faster iteration and if necessary convert to C++

[thin panther]

That's what the whole "small gameplay tasks" thing is

[foggy escarp]

If bp is event focussed, the speed improvement from C++ is not relevant, as long as correct practices are used with it.

[foggy escarp]

large gameplay tasks can be bp, as well, its just a matter of performance hits.

[thin panther]

Well yes but if you're already comfortable in c++ land there is literally no point taking that hit

At that point you're not really getting the iteration speed bonus because spaghetti

If this was someone that knew nothing about c++ i would absolutely agree. But if you're comfortable in c++ there is 0 reason to use bp for complex things

Especially given the most expensive part of the bpvm is transitioning between nodes. Hence the "small gameplay tasks"

Oh also using bp for AI is another one

Several users can attest to how miserable c++ AIModule stuff is

[foggy escarp]

By al means, use c++ if its something that makes since. I'm not saying to use bp over C++. Its just that certain things should be prototyped in bp first. Consider making a base class in C++, 100% makes since to make core functionality in C++. But when design is unclear, bp can be a tool to clarify requirements.
Blueprint can have insane iteration speeds, spaghetti is not the case when you use tools to remove that issue.

I spend no time in cleaning spaghetti because I have a shortcut to organize bp for me.

[thin panther]

Even a readable bp can be spaghetti. It doesn't strictly mean wires crisscrossing all over. Its more to highlight large bps

[indigo bough]

Hey folks, this is a physical material, blueprint and material question so I'm putting it here and hoping for the best 🤣

Is there any way to get a blended physical material result for landscapes?
For example knowing if there is 50% sand and 50% grass, or 20% sand, 40% dirt, 40% gravel, etc.

Or are landscape physical materials basically always binary/masked blends? You're only ever tracing for sand, dirt, gravel, etc (presumably whichever is the majority layer in that location?)

[thin panther]

And again, it can be absolutely great for that, but if you're more comfortable in c++, there's a good chance you aren't gaining much of that benefit, so it's more useful to use it as intended.

(and that isn't a large bp anyway so the point is moot :P)

[foggy escarp]

well, it seems smaller, but its just because I compartmentalize functionality into other functions and graphs. I try not to have so much into a single graph, which makes it easier and faster to iterate.

[thin panther]

Most of knowing what to prototype in bp comes from experience and no good guide can really teach this

But again, if you are more comfortable in c++ than BP there is a good chance you're better at prototyping in c++.

Generally through use of both you will find what works for you, nothing is set in stone.

As mentioned, the only minimum you want to do is the aforementioned asset referencing, small gameplay tasks, AI, and subclassing c++ classes.

You can use as much as you want on top of that, but that's personal preference at that point, and comes down to comfort levels :P

[fringe junco]

I'm getting this weird cascading widget thing when i dont use a loop to generate this widget. any thoughts lol? im kinda stumped here

[thin panther]

The only bad way to do it is 100% one way or the other imo

[foggy escarp]

Yeah, whether or not base C++ classes are used and if there are many bp reference chains makes the difference of how big a project can be.
I worked on a project that based off of a bp only project. This was a mistake because the developer had no understanding of reference chains. I couldn't even add anything at all before I'd get lots of issues and slow editor speed.
All this usually becomes only relevant to larger projects though. There are so many ways to ensure larger projects remain manageable. Using everything to disposal is always in best interests.

[thin panther]

Absolutely. Not enough resources teach proper referencing, and the pitfalls with bad referencing, and then someone gets halfway through their dream project before realising you need a terabyte of RAM to launch the thing :P

[zealous moth]

@fringe junco in your widget get parent and print it

Otherwise multiple things call it

@thin panther you got some of them resources I could read up on?

[cold junco]

why this is not working ? , i m trying to make the sound adapt with speed (ball not rolling , no sound --> ball full speed , sound at normal speed ) , the valor of the pitch goes to 0-1 , but it does not change ( i m in event thick )

( the sound does not change over speed )

[edgy axle]

vector length

will give you the velocity

idk what you're doing with that array thing

just do Get Velocity -> Vector Length -> divide by max speed

[cold junco]

Ty it make it shorter , as for the sound still not working 😄

[fringe junco]

there seems to be double the amount of widgets spawning? i want two when 4 are made and im not entirely sure why lol

[gusty shuttle]

Hey folks, brain fart question here, when I walk into overlap, it should subtract 1 out of my array (3), but instead it subtracts two. What gives?

[spice vapor]

Is it possible to get the amount of a specific actor in a sphere trace by channel?

[dawn gazelle]

multi sphere trace by channel. It returns an array, and the length of that array is the number of hits. If you want to check for a specific actor, then loop through the hits and check the hit actor's class and increment a counter.

[lofty rapids]

that doesn't make sense you printed the value and it subtracts two instead of one ?

normally programs don't just do that

it's probably working correctly

it must be triggering twice for some reason ?

a print string at the beginning of the event would show that

[lunar musk]

Is any way to use an old plugin?

I have a 5.1 plugin and i wanna use it on 5.2

[zealous moth]

yes, you load the plugin in a plugin folder in a c++ project in 5.1.
Once loaded, close editor, load the plugin in VS and in the .uplugin file, change the version from 5.1 to 5.2.
Compile.
Change the version of the project to 5.2.
Generate VS files.
Open

[fringe junco]

hmm so my widget is being spawned in 2 extra times, i dont really get why lol

[dapper nest]

i feel like im doing something wrong, local damage is = to 25, the enemy has 50 HP, but it takes 3 shots to kill the enemy???

[lunar sleet]

You’re not showing your float check

[lunar sleet]

No one can prly tell why based on the you’ve shown so far

[lunar sleet]

The code

Show the code that does the actual hit and check

Also your print says enemy hp AFTER hit

[dapper nest]

the damage is just an input through the hit, the hit hits otherwise the code wouldn't work, and the damage being input is = to 25

[lunar sleet]

What’s the default value of health

[dapper nest]

yes the enemy's HP after the hit should be 25, but its 50

50

and this is the check to see if the enemy is dead or not

[lunar sleet]

Where are your print nodes

[dapper nest]

before and after reducing the HP

its just so weird cos the damage going in is definitely 25, but its not reducing it

[lunar sleet]

Make sure your health is not being set anywhere else, maybe print initial health right before the subtract

[spice vapor]

Thanks you a lots for the help. It seem to work, but when I have 7 or less hit the counter is wrong by one. Did I do something wrong?

[dawn gazelle]

You probably want the counter after the branch, not before.

[lunar sleet]

And also pls don’t do == class it’s very pedestrian

[dawn gazelle]

This here is adding 1, then after the branch adding another 1.

You should have it so just after the branch you do a ++ on Integer.

[spice vapor]

Oh yeah now it work perfectly! Thanks again!!!

[lunar sleet]

Use a cast

Rather than 3 nodes, you can use 1

[spice vapor]

I don't know a lots about optimization since I am only a sound designer, but is cast us a lots of resource? In my system I am going to have a lots of object to find.

[lunar sleet]

It’s not that expensive usually

[spark steppe]

casts are cheap

they just come with the cost of having the object class loaded in memory all the time

[bright void]

I want to modify a property of a ISM, but all the variables are "get" only. I have no access to "set' anything.

Why is that?

[dawn gazelle]

What is it you are trying to change? There's several options available for changing ISM properties.

[bright void]

The Shadow Cache Invalidation Behaviour.

but I only seem to be able to access the "Get" , not the "Set"

I would like to understand why

[dawn gazelle]

Probably because it's not meant to be changed at run time.

[bright void]

It seems to me , that all the Variables that are in the "Variables" Category, only have the "Get" exposed.

For sth as basic as "Cast Shadow", it is the same. Only the "Get" is exposed.

But Cast Shadow is meant to be modified, there is even a separate function there.

[frosty heron]

U are suppose to use the function to modify. Not the variable for that particular object

Take FSkeletalMaterial for example

I tried to set the material directly from the mesh but I was told by ide that it's read only. The only way I could change the material was using the function SetMaterial()

Tldr when you see function for setter use that one instead. There might be behind the hood stuff that runs to update the parametre

[bright void]

Ye, I completely understand.

Since there is no function for this, I assume I am just out of luck and won't be able to modify this property.

[frosty heron]

Sometime the reason is that it's not suppose to be changed at runtime.

Sometime the function is not exposed to bp but exist in cpp (which if that's the case can be exposed by creating child of the class)

The variable is probably read only

If you don't see the set

It shouldn't be modified outside the class

[bright void]

made a child class and it's also only available as a read-only.

Meaning The engine currently only allows to set this manually in the editor.

So just gotta hope to get an update.

[dawn gazelle]

From what I can tell this variable is defined in PrimitiveComponent.h

    /** Control shadow invalidation behavior, in particular with respect to Virtual Shadow Maps and material effects like World Position Offset. */
    UPROPERTY(EditAnywhere, BlueprintReadOnly, Category=Lighting, AdvancedDisplay, meta=(EditCondition="CastShadow"))
    EShadowCacheInvalidationBehavior ShadowCacheInvalidationBehavior;

Note the "BlueprintReadOnly" specifier, meaning you can only read it in blueprint graphs, but not set it. There doesn't appear to be any functionality exposed to set this variable either.

So the "Why" is either "They didn't bother" or "They don't want you to".

That being said, I don't think this'll work on instances within the ISM if that is what you were hoping.

Each instance gets its own Behavior based on their descriptor (again, based on what I'm seeing in the source code)

[bright void]

Thank you for checking. I understand. They probably didn't think it would be necessary and thus didn't expose it.

[bright void]

I was hoping for Players to choose whether they want static or dynamic shadows.
To give a quality vs performance choice

[eternal dirge]

nested widget cannot trigger OnDrop function?

[dawn gazelle]

It can, it has to be marked as Visible I believe and "Above" anything that may be blocking it.

[surreal peak]

Shooould be possible somehow. A lot of games scale the anim speed based on character size. Have you checked if the node to play your anim has an option for scaling or playrate? Often you need to actively select there that it becomes a pin you can drive with a variable

[vast lion]

Not sure how to debug this

shouldn't my spline point be way over here?

My spline is a perfect circle

This is what the tangent looks like when I click on it

[marble tusk]

What's the blue one?

[vast lion]

I've tried GetTangentAtSplineInputKey(), GetTangentAtSplinePoint(), and GetTangentAtTime()

They all give me this location

That is what the blue is

What I want is the actual tangent location (what is circled in green)

[marble tusk]

The tangent location is local to the spline point itself

[vast lion]

It gives you a world and local option

[marble tusk]

So you might just need to add the spline point location to it

[vast lion]

Let me try that

Wow, ok

Much better

Except it's twice as long

But definitely in the right direction

[marble tusk]

Yeah, I think there's some scaling done to the tangent length in Unreal. I'm not 100% on the specifics of it though

Like it might be to make it easier to edit the splines with a shorter tangent handle maybe

[vast lion]

Hmm

But the SetStartAndEnd() function for a spline, I assume the tangents it takes it assumes are relative

[marble tusk]

I don't remember where I heard about it and I can't find anything mentioning it when I search, so don't quote me on that

[vast lion]

Hmm

Yeah it seems like the spline mesh "almost" matches the actual spline when the tangents have a 2.5 multipler on them

So weird

The mesh doesn't even come close with a 1x multiplier

Tangents do look right though (minus being twice as long)

There must be some scale or something to change