blueprint

[desert juniper]

Although I start fully in the BP child class and then transfer to c++ on the parent once im done prototyping
same. i do like to build these systems in seperate projects as much as I can.

and then convert them to C++ in the main proj

[tawdry surge]

Nah same project

Make a c++ class, make a BP child, prototype in BP and then piece by piece move it to the parent

Saves time too cuz not EVERYTHING needs moved to c++
For the most part BP runs as fast as c# with a few exceptions.
I only worry about moving math heavy or looping things for performance. Everything else I move is either for cleanliness or to hide it from designers

[gentle urchin]

Make bp actor -> make c++actor of same base -> reparent bp actor = win

[mental trellis]

Reparenting doesn't always work as intended, though.

[gentle urchin]

Oh?

I've never had an issue, but im no denying the possibility :p

[lyric thicket]

ehhh, Java still has a use imo

[spring jolt]

Just to circle back on this...I solved the problem by Forcing Root Lock in the movement animations.

[mental trellis]

To wake you up in the morning!

[true valve]

When I'm sprinting and moving left/right, how can I slow it down how fast it turns?

[surreal peak]

Your root component should theoretically be a collision shape like a sphere collision. But that's beside the point. How are you restarting the projectile?

This looks animation related. Like root motion anims that aren't locked when using it them as normal anims

[surreal peak]

Maybe the rotation rate on the character movement component?

[surreal peak]

Oh I didn't scroll down haha

[lone arch]

Hi guys, any ideas why a video source gets stuck on a frame on runtime
i am using a URL to play the video

[blissful widget]

Same frame every time, or a random one?

[blissful widget]

It's weird, it seems to drive the model's rotation rate more than it does the movement's. If you snap back almost backwards, you start moving backwards while facing like ~100+ degrees away from your movement

[lone arch]

Different frame
It's like a video getting stuck
Specially when I am using the texture in multiple places
You can think of it as for ad boards

[mental trellis]

Are you sure it's playing?

[surreal peak]

That's intended I guess

RotationRate does not affect velocity

[icy dragon]

I'm not expecting video source to be reliable...

If possible, either use image sequence or Bink Video (which is specialised for playing back video in game)

[blissful widget]

Yeah I suppose, but when I'm sprinting I generally sprint in the direction I'm facing 😄 Probably need a CMC setup eventually

[limber parcel]

any idea why this particle effect spawns over there instead of on my character?

[marble tusk]

Is it spawning directly away from the world origin at the same distance you are from it? If so attaching might be relative and not need the location

[limber parcel]

i have tried that too with same result

it attaches and moves with me when i spawn it, its just in the wrong location

ffs its just getting worse, its never spawning at the correct position

[gentle urchin]

ugh, code easily becomes messy during iteration

and way longer than expected 😛

[surreal peak]

Is the particle emitter space local?

[limber parcel]

no

should it?

[gentle urchin]

is the mesh valid

[surreal peak]

Try it

[limber parcel]

yes the mesh is valid

[gentle urchin]

does it happen to spawn at 0,0,0 by any chance

(seeing as it's in the corner there, not sure if thats absolute 0 loc)

[limber parcel]

i tried both 000 and actor world location

it always spawns with this shitty offset

local space didnt help either

[gentle urchin]

Snap to location _

?

[gentle urchin]

So it does spawn at 0,0,0 ?

[limber parcel]

no

[gentle urchin]

okok

[limber parcel]

same thing happens with a different system so its probably not the issue

[lavish tusk]

pressing the "r" button respawns my player at the last save point and resets all the traps to their untriggered state, theoretically making them triggerable again.

[limber parcel]

yeah no matter what location i give it, it always spawns at a huge offset...

[surreal peak]

When you attach you don't need the world location

[wheat aurora]

Isn't there a "Snap to Target"? I thought attachement nodes had these

[gentle urchin]

It does

It has*

Or maybe thats just sockets ..

[limber parcel]

it doesnt work either way

[near wolf]

Why is it not letting me connect this

[limber parcel]

because apparently a thirdperson character reference isnt compatible with a thirdperson character referenfce

[gentle urchin]

So it was the ref 😅

[near wolf]

I wanna check if the player has occupied the vehicle

[junior hedge]

read the coordinates of where your character spawns and manually set just to make sure

[limber parcel]

i got it to spawn on my character now but its still acting weird

its only visible at certain camera angles

and when i move it still spawns with a weird offset

thats the settings im using now

if i make the location type snap to target it spawns at an extreme offset

[gentle urchin]

Tried adding a socket and typing its name ?

Sorry, just spitballing now

[limber parcel]

and the particles just always move away from my character, even with all forces disabled

and its local space

[near wolf]

increase the bounds ?

[limber parcel]

400x400 should be enough for this or not?

[near wolf]

try increase or set fixed bounds

not sure

[limber parcel]

i disabled the fixed bounds and set to cpu rendering now it works a bit better

at least its visible

but its still inheriting my velocity

magepox

[pulsar kraken]

Hello, I am using this setup to move character on touch input like left and right just like character in pubg lobby. This works fine in windows but won't work in android platform maybe due to i'm taking values from get mouse x and Y. But i couldn't find what nodes to replace for touch input in place of get mouse x and y. Thanks for answers

[limber parcel]

who even plays games on android? save urself the hassle

[near wolf]

I created this new socket

And im trying to attach my character to it

but when I enter the name it get's attached to the root bone

and not the socket

what am I doing wrong?

[limber parcel]

you didnt set the socket name

[near wolf]

I mean, this happens after I set it up

[near wolf]

just forgot to add it before the screenshot

[limber parcel]

ohh

did you actually set the sockets position?

[near wolf]

hm nah, tried this and still doesn't work

[limber parcel]

try getting the skeleton then

and not the actor

[tight schooner]

Maybe #mobile has something @pulsar kraken

[jagged stone]

Is it possible to set a struct member value based on a variable? I have a struct with float values like this; and I want to be able to set the value of any member based on index (for example the 5th member "UOOH")

[limber parcel]

looks like you should use a float map instead of a struct

you can give it an enum as index

this

[jagged stone]

So the enum as the key?

[limber parcel]

yes

[jagged stone]

i see thanks

[limber parcel]

i guess u could also use string keys or whatever u prefer

[devout grove]

Does anyone know if widget blueprints should block OnClick events?

[jagged stone]

Enum is nicer

[limber parcel]

true

[limber parcel]

that depends on your widget i guess?

[devout grove]

its basically blocking the whole screen

[limber parcel]

well if u make it cover the whole screen it will block whole screen

[devout grove]

right but is there a way to get it to ignore the widget?

[limber parcel]

would be weird if not

[devout grove]

i already tried not hit-testable but no dice

as soon as i remove the widget the OnClicked events register

[limber parcel]

i guess u have to return unhandled on the click event

[jagged stone]

I guess this will not work in my case actually as i need to pass the data to the control rig, and control rig does not appear to support maps

[limber parcel]

the what?

[jagged stone]

I cannot use map variables within the control rig (only single values or arrays)

[limber parcel]

then make the map into an array idk

or put the map into a struct lol

[jagged stone]

I guess i'll just have to use it as an array which is not specifically bound to the enum

[crude dew]

Hi, Wonder if someone can help please? I have a actor I am trying to attach to a component. As you can see the arrow is attached to the handr_Socket and is pointing up, but when I attach the weapon it seems to apply the same -89 from the Z transform from the Mesh which then places the weapon on the floor instead of in the socket, Can anyone explain why this is happening please? Hope I have explained the problem well enough.

[limber parcel]

i mean u wont need the enum anyways after u passed it to the control rig

[crude dew]

I thought it would have attached it to the socket not attached to the socket and then applied the -89 to it. :S

[limber parcel]

so just convert it to an array before u do that

[jagged stone]

It's easier to see what your doing if you can always see the enum string value associated with a value, instead of just an index number

[limber parcel]

control rig says no

https://tenor.com/view/computer-says-no-gif-13782932

[devout grove]

@limber parcel if instead of trying to get the OnClicked to work could I just pivot to performing line traces from the camera?

do widget blueprints block line traces?

[limber parcel]

go to sleep lol

[devout grove]

i just woke up lol

[limber parcel]

then better grab some coffee xD

[devout grove]

im getting that feeling haha. I will figure this out tho

[limber parcel]

the widgets and camera arent related in any way

[devout grove]

so odds are good?

im gonna give it a try

[gentle urchin]

They dont

Unless world space widget component

[dry condor]

@devout grove try changing the input mode to game and ui maybe that changes it to register your onclicked events

[devout grove]

@dry condor that would save me a lot of time from trying to get these line traces to work

ill give it a shot

would i add that node inside of the player controller BP?

unfortunately it doesnt work 😦

i even tried SetInputModeGameOnly

[dry condor]

hmm thats strange, maybe someone in #umg has an idea why its doing that

[pulsar kraken]

can you be more specific ? widgets don't call on clicked events or

[devout grove]

i thought i saw a forum post that said default behavior is for Widget blueprints to block any sort of OnClicked events. Which i guess makes sense since you dont want to click on any actors in the world when the player brings up a menu or something

[dry condor]

well in my test project i can open a menu widget and still fire the characters bow with left mouse

but i guess thats because its an action mapping and not OnClicked so not 100% sure for your case

[dry condor]

ah no, im dumb, its because the widget doesnt take up the whole screen

[devout grove]

yea would seem if a widget is in the way, OnClicked doesnt reach the target

[tawdry surge]

I have an arcade style shooter that uses on clicked for killing enemies and spawning particles.
My hud widget take up the screen and I can still click fine

[devout grove]

@tawdry surge any tips?

[tawdry surge]

Its gotta be a setting somewhere in the widget

[devout grove]

i already tried not hit testable but that didnt work

[tawdry surge]

Are any of the children hit testable on there own?

[devout grove]

nope

[tawdry surge]

That's weird.. I even have clickable buttons on mine.
Try making a new blank widget and see if it works with that

[dry condor]

try setting the game and ui mode after creating the widget and reference it as the widget to focus

[tawdry surge]

Idk if that would help. The idea here is to look passed it not focus on it

[devout grove]

tried both of those things and still nothing

im gonna move this question over to UMG, sorry guys

[dry condor]

can you make the widget smaller so it doesnt cover the whole screen ?

[devout grove]

i suppose but was hoping to figure this out in case I need a full screen widget for future projects

[ruby glade]

Hello, is there a way to get triggers or values from MetaSound to Blueprint?
Just like "Execute Trigger Parameter" or "Set Float Parameter" but reversed. Ex: "Get Trigger Parameter" or "Get Float Parameter".

[lyric glade]

this only happens when the player dies even tho unposses works

otherwise the ai would still be moving

oh i removed destroy actor works fine now

[obsidian arch]

What is the node called that I can drag off a bool variable to set it to not true?

[rose gull]

Is there a way to run axis mappings only once? Im having my leaning system on axis mapping using a timeline and the timeline keeps playing, is there a way i can make it work such as only when the value of axis changes to smth it runs the timeline

[gentle urchin]

"NOT"

[rose gull]

waiiiit

[gentle urchin]

or just set bool, false ?

[rose gull]

i thought the same

but not wont set it to false

it will only be a condition

[gentle urchin]

it wont

for sure

[rose gull]

you actually have to set it to false

[gentle urchin]

it'll invert it

[rose gull]

yes

exactly

[rose gull]

.

[gentle urchin]

the question is vague

[rose gull]

aight anyone know how to do this

i asked this yesterday

[gentle urchin]

just gate it

value != last value

[rose gull]

i dont understand, sorry waht

what*

wouldnt that not run the timeline

[gentle urchin]

You can also check if the timeline is already running

depending on your need

[rose gull]

i want to run the timeline when the axis mapping changes and not again

[gentle urchin]

right

so blocked by if timeline is already running?

this will execute whenever axis value changes

[rose gull]

OH OKAY

i see

i did

something else

but okay

lemme try this

[gentle urchin]

now it will only run on change, and start the timeline if its not already running

if its running, ignore it

[rose gull]

but its a leaning mechanic so i believe it shouldnt?

[gentle urchin]

UP TO YOU

sorry caps

this would reverse it if its below lean treshold (0.1)

[rose gull]

its acting weird now, hold on

it doesnt play the timeline again, it only plays it the first time, then the other times it just teleports

[rose gull]

doing this

@gentle urchin

[gentle urchin]

assuming your timeline does something about the animation state of the character

id block the timeline from executing more than once, if its still going in the same direction

[tawdry surge]

I feel like an interp to would probably work better for this situation than a timeline

[limber parcel]

how to remove all the useless things like mobile services from my actions?

[gentle urchin]

not a bad suggestion for sure

[rose gull]

How would i use that?

Im using interps inside the timelines

[tawdry surge]

I think they are included because you have the ios, or Android platforms installed to the engine
If you're not gonna use them you can remove them from the options on the engine version in your epic games library

[rose gull]

Also im only rotating the character and calc aim down sights on the timeline

[tawdry surge]

Your using a curve to define interpolation. An interp to node would let you define a target and a transition time, but it's meant to be run on tick and will give a smoother transition especially for things like player or camera movements

[rose gull]

Oh

So youre saying not to use the timeline at all

But to use an interp node instead of it to get the alpha

Right??

[tawdry surge]

Timelines are great for defining custom/complex interpolation curves. For linear stuff like leaning or zooming in and out, yes I'd skip the timeline and use an interp to

[rose gull]

alright im gonna try that then, thanks

[near wolf]

I have my character mesh attached to a box inside my vehicle blueprint. And the character stay there when moving, but when steering the vehicle, the character goes through the doors to the sides

how can I avoid that ?

[versed sun]

seatbelt

[near wolf]

doesn't work

seriously, how can I fix this. The box is attached to the mesh, but the character mesh still goes out

I guess i'm missing something in the blueprint

[tawdry surge]

Is the character mesh simulating physics?

[near wolf]

no

[hazy fulcrum]

Is there any way to get a timeline to take an external curve asset variable instead of having to create one as a track?

[tawdry surge]

No, but you can make your own timeline function and use one with that

Basically just need to use tick, save the start time and check the value each frame

[gentle urchin]

Isnt there an option for external curve?

Inside the timeline editor?

[hazy fulcrum]

You're completely right of course, I am obviously just blind.

Thank you!

[gentle urchin]

Sweeet

[hazy fulcrum]

My next question is, can you paramaterise that curve and make it instance editable?

[gentle urchin]

Unlikely? Not sure

What do you want to modify?

Key points ?

I think thats c++ teritory

Otherwise you can always make an array and to the interpolation yourself

Not very handy tho

[hazy fulcrum]

Key points and track length. I'm using it for weapon recoil, my idea was to store the values on a curve and have a per-weapon variable.

Maybe there's a better way of doing it.

[gentle urchin]

Lemgth is adjustable (playrate)

[hazy fulcrum]

Aye, but slowing that down stretches out the initial impulse, which isn't ideal.

[gentle urchin]

Wouldnt the weapon just provide its recoil curve to the timeline?

You dont need to slow down at the start :p

[hazy fulcrum]

That sounds like what I'm trying to do, but the timeline exists in my base weapon class and I would rather not have to set up a new timeline in every single child.

Unless I've misunderstood what you're saying?

[gentle urchin]

You dont need to

Just make a function in the parent

GetRecoilCurve

And override in the child :p

Or just a parameter variable ofc

Does the same thing rly

[hazy fulcrum]

So then how to I point the timeline to that curve? That's the bit I'm having trouble with.

[gentle urchin]

Well how do you set the external curve to use?(never used external curve)

Assumed it became an input on the timeline

[tawdry surge]

You have to assign it like any other track. 99% sure there is no pin to set it dynamically

[gentle urchin]

Assign to ..what?

Gotta test this when i get a chance

[tawdry surge]

I mean you need to go inside the timeline and add the external curve ahead of time like you would a float, vector, color, or event track.
I don't think you can set which external curve to use from a pin

[gentle urchin]

But to use from a variable?

Perhaps not

Sad, if so

Custom timeline it is

Just reading it manually sounds simpler at this point^^

[tawdry surge]

Its easy in c++

[plain helm]

guys what database do you use for singleplayer game?

[gentle urchin]

For sure

[feral parrot]

Can anyone tell me please how to create constantly moving forward platform not using event tick? The Timeline node always updates it and goes from the initial location 🙁

[gentle urchin]

Use tick

Add location offset

Its the way to do it

Timeline is also tick

Timer at 0.01 is also tick-like

Embrace it

If you dont do it per frame it'll look ugly.

[thin panther]

If you want somethinf to happen each frame, ie movement, then you cannot escape tick

[proud igloo]

is there any way to await these two asyncs?

[gentle urchin]

Add a combining branch

[proud igloo]

?

[gentle urchin]

A branch?

[proud igloo]

i don't think you understand the question

[gentle urchin]

Connect both completes to the branch

I do

Branch check "bIsLoaded"

If false, set bIsLoaded to true

Next time itll run through and you can continue your logic

If that was not what you wanted then you are correct in me not understanding it.

[crude dew]

Hi how do i use the teleport flag for a skeeltal mesh please?

Attempting to move a fully simulated skeletal mesh /Game/ThirdPerson/Maps/UEDPIE_0_ThirdPersonMap.ThirdPersonMap:PersistentLevel.BP_Equippable_C_UAID_309C23AA0A00BF1F01_1600769511.Mesh. Please use the Teleport flag

[gentle urchin]

If you're using this event several times, reseting the bool before the two async calls is recommended

[tight schooner]

@crude dew idk much about your issue but I'm gonna take a wild guess. Somewhere in your BP with the skeletal mesh (or potentially in another BP calling a function on it), you're using some sort of set location/offset node. Those nodes should have a teleport parameter on them. If this error is appearing in your output log, you can try running the game with the output log window visible and see at what point that error occurs. Might help narrow it down.

Teleport is useful if you want to move something without having that movement contribute to physics sim

[gentle urchin]

Did it work?

[junior hedge]

Do timelines differ from framerates?

[gentle urchin]

They work on time, so they're framerate independent afaik

[desert juniper]

SQLite is a great option

if you're looking for an actual database

[plain helm]

Unreals SaveGame is not good?

[desert juniper]

🤷‍♂️ you asked for a database.

[thin panther]

Unreals savegame is not a database solution

[icy dragon]

Database ≠ save file

[plain plaza]

Why cant i trigger the onClick events of the red and green Button? Do i have to set something in the Vertical Box to access the children?

[gentle urchin]

No, but make sure they are marked as variablees

[plain plaza]

Hmm, they are.

[crude dew]

@tight schooner thanks! i,ll check it out.

[plain helm]

Ok. How about MongoDB? Uses in Fortnite

[thin panther]

Do you even know if you need a databasing solution, it seems you arent fully aware of what they do and are just throwing out names

[plain plaza]

Nevermind, visibility was on "not hit-testable"

[junior hedge]

It needs to be an actual button

Oh nvm

[digital bison]

I made a blueprint where a component is a parent of another component but when I press play the details panel says they have no relationship. Anyone know anything about this?

[crude dew]

Anyone know why 2 object will collide with each other when they are set to "Overlap" ?? please?

As you can see the ThirdPersonCharatcer is a Pawn and the FireArms is a Weapons type, The third personcharacter is set to "Overlap" on weapons and the Weapons Overlap with Pawns, But when the character runs into the Weapon it "pushes" it around when I only want to trigger an overlap to say "Walking on Weapon" or something.

[tawdry surge]

Is the character mesh set to overlap too?

[crude dew]

the character mesh is set to No Collision as i thought it might be causing the issue so the interaction is pyurely between the capsule component and the weapons object

so it would be the capsule that is "pushing" the weapons object but im not sure why when set to overlap :S

[candid idol]

Hi everyone, im having some problems when i try to package my android apk for quest 2, and everytime this happen... And i dont know how to solve the problem... 😕

UATHelper: Packaging (Android (ASTC)): ====04/07/2022 14:41:13====PERFORMING FINAL APK PACKAGE OPERATION=====-
UATHelper: Packaging (Android (ASTC)): To honour the JVM settings for this build a new JVM will be forked. Please consider using the daemon: https://docs.gradle.org/6.1.1/userguide/gradle_daemon.html.
UATHelper: Packaging (Android (ASTC)): FAILURE: Build failed with an exception.
UATHelper: Packaging (Android (ASTC)): * What went wrong:
UATHelper: Packaging (Android (ASTC)): Unable to start the daemon process.
UATHelper: Packaging (Android (ASTC)): This problem might be caused by incorrect configuration of the daemon.
UATHelper: Packaging (Android (ASTC)): For example, an unrecognized jvm option is used.
UATHelper: Packaging (Android (ASTC)): Please refer to the User Manual chapter on the daemon at https://docs.gradle.org/6.1.1/userguide/gradle_daemon.html
UATHelper: Packaging (Android (ASTC)): Process command line: C:\Program Files\Java\jdk1.8.0_77\bin\java.exe -XX:MaxHeapSize=4096m -Xmx9216m -Dfile.encoding=windows-1252 -Duser.country=BR -Duser.language=pt -Duser.variant -cp C:\Users\LucasBurns.gradle\wrapper\dists\gradle-6.1.1-all\cfmwm155h49vnt3hynmlrsdst\gradle-6.1.1\lib\gradle-launcher-6.1.1.jar org.gradle.launcher.daemon.bootstrap.GradleDaemon 6.1.1

[gentle urchin]

#packaging

[prime stump]

Hi, can anyone tell me why this scroll box is being weird? If I have it in the Horizontal box that its nested in, it just doesn't show in game at all for some reason so I have no settings, but if I have that Horizontal Box as a Vertical Box, it shows in game but the scroll box doesn't work at all.. why would it completely disappear in game with a horizontal box but I can see it in the editor just fine? i dont get it

[gentle urchin]

#umg

[prime stump]

not as active but posted there anyway

[gentle urchin]

Still better suited, and people chevking there might be better qualified

[limber parcel]

why is my editor freezing for 3-5 seconds when i drag a slider like this?

its literally just chosing an integer but its acting like its calculating pi or something

is there any settings i missed or something?

[crude dew]

after 1hr and 30 minutes of trawling the internet i found the answer to my problem, I,ll post here as well just in case it turns out that if you have a Character Movement COmponent it has it,s own checkbox for enabling Physics Interactions by Default, So if you want characters to walk through other physics actors you have to disable it in the Character Movement Component also.

[limber parcel]

weird, my characters can walk through stuff even with this enabled

[crude dew]

The thing your charatcer is walking through does it have "Simulate Physics" enabled?

[limber parcel]

it doesnt really matter i guess, it cant really interact with physics if there is no collision to trigger it

[wicked magnet]

Does anyone work with EditorUtilityActors? Normally I have found a workaround where I can use nodes unique to EditorUtility Actors by copy/pasting them to regular blueprints - i.e. all Take Recorder nodes can get copy/pasted to a regular blueprint, despite being EditorUtilityActor specific.

However, I have noticed "Refresh Current Level Sequence" is not copy/pasting like other nodes.

I get the message when i try to copy/paste

[limber parcel]

is it from a macro library?

[wicked magnet]

I'm not familiar with macro libraries, but my understanding based on googline is no. This is a regular function in the source -

I Tried making a custom event I could call outside of the EditorUtilityActor blueprint, or an interface, but it seems that approach doesn't work.

In other words, am trying to figure out how to call EditorUtilityActor blueprint functions from within a regular blueprint function. I don't know why it works to generally copy/paste the nodes, but it... normally does.

[hard sigil]

how would i go about creating a random dungeon based generator?

[grizzled goblet]

I have a silly noob question: How do I skip over indexes in a Blueprint for loop eg.

regular code
for(int i =0;i < 10; i+=3) {

do i use a modulo in blueprint with a switch?

[mental trellis]

If you specifically wnat every 3rd index, you could do i < 3 and then do actualindex = i * 3

Or i < 4 whatever

[gentle urchin]

%3

[grizzled goblet]

@mental trellis I'll give it a go. @gentle urchin i'll try modulo as well

wasn't sure if I was missing an option in the node, thanks!

[mental trellis]

I'm sure there was a step in the for node. Maybe I'm thinking of another one

[dim tapir]

Any tips on how I can make my projectiles get destroyed after x hits? Preferably if I can set HP on them and have it scale with my damage. Can't find any guides on it online

[grizzled goblet]

@mental trellis since the for loops are macros I could make one with a step

[gentle urchin]

Thats also an option ^

Perhaps the best one

[mental trellis]

Indeed!

[faint pasture]

Why do you need a guide?

Oh hit -> HP = HP - 1 -> if HP <1, destroy

There's already a bounce count in ProjectileMovementComponent though that can do this for you

[foggy escarp]

Trial and error is sometimes the fastest way to learn things like this. Then eventually simple things like this work first time.... Mostly anway.

[dim tapir]

When I tried the event "On damage taken" it did not work, perhaps because it's an actor?

[faint pasture]

On damage taken only fires if something else applies damage to it.

You said you want X hits

You could do
Hit -> Apply Damage to self

Then elsewhere

OnAnyDamage -> HP subtraction stuff -> did I die?

to make projectiles "damagable" and damage themselves on hit

That would be a good idea if there's other ways projectiles could get damaged, like from explosions etc.

[zealous moth]

you can also make a "hit counter" int at 0 and when it hits something, set int++

don't need the whole damage thing

[faint pasture]

Yeah that was my first suggestion but then he asked about using damage "interface" (it's not really an interface but might as well be one)

[zealous moth]

oh didn't see

then do damage times -1

and add 😄

[dim tapir]

I tried something like this but it did not work

[zealous moth]

base damage = 0

[foggy escarp]

Did you get the problem filtered down to a single cause?

[faint pasture]

Well yeah because you're missing the point and also you're applying 0 dmg

Forget damage for now, just count hits

[foggy escarp]

^

Adriel idk how you do it, but it seems like you pretty much single handedly answer 70% of the questions in here.

[dim tapir]

"Called when projectile impacts something and bounces are enabled. Is that just a name because I don't want my projectiles to bounce

[faint pasture]

Just pick one approach and do it. I suggest just counting hits.

forget bounces, forget damage, just count hits

Event Hit -> Add 1 to hit or subtract 1 from hitsleft -> do we die? -> die

[foggy escarp]

😮

25k

[gentle urchin]

25k

[foggy escarp]

That's obove and beyond

[gentle urchin]

Same

[thin panther]

Damnnn they doubled me

[gentle urchin]

Almost 26 🤣

[thin panther]

I need to type more

[thin panther]

Holy jeez

[faint pasture]

There's always a bigger fish

[thin panther]

And i was about to say squize has 25k too

[gentle urchin]

Its like 24k short answers

Not that many really helpfull ones

[dim tapir]

I haven't quite understood all the things on the "Event X". Do I need to apply them somehow because above is not working

[faint pasture]

That looks good, does it destroy itself after 5 hits?

[dim tapir]

It doesn't register a hit

[short bramble]

Linetracing question. I'm trying to comeup with a procedural spawner for our procgen levels.
What could be the best way of knowing if a hit location belongs to the walkable surface, and not to a overlapped mesh (most likely because a instanced mesh has spawned earlier on top).
I'm multiline tracing from the sky to the floor, and then tried to trace upwards, the problem is that I don't register a hit from the backside of the meshes so it counts as null, which is not what I want, since a null result could also mean that nothing is on top of it and could be a good spot to spawn AI, etc.

[faint pasture]

Well then now you've moved the problem to that. Are you using physics or projectile movement component to move the thing?

[dim tapir]

Projectile Movement

[faint pasture]

Do you have a navmesh?

[faint pasture]

Dig around, there'll be some setting somewhere to turn on hit events.

Unless Projectile Movement has hits own event for hits, not sure. I don't use it.

[dim tapir]

Could it have something to do with the master projectile BP? Because when I use overlap it registers (cast failed)

[gentle urchin]

You can test the hit location for navigational i think

[short bramble]

Thought about it, but could be fragile due to other dependencies. Just found the solution with the double side geo checker. I can linetrace upwards and check the dot product when the hit is registered from the inside.

[faint pasture]

@short brambleYou can get reachable points on navmesh

[dim tapir]

I solved it by using overlap instead of hit

[short bramble]

yeah, I do that check later, thing is navmesh is dynamic and only updated in specific invokers, so in many cases a point will be virtually reachable while will spit false due two be part of 2 different islands.

thou indeed, got that in my mind for other cases. I think the double side geo + dot product def tells me if I'm inside an object or not

[faint pasture]

Do you have verticality or are all walkable surfaces at Z=0 give or take?

[short bramble]

vertical, just a scatter rain

that multitrace, in different levels

different heights

I do different cheks, like the height in a second line trace

• that little problem, of traces from inside objects.

[faint pasture]

If it's rain why not just start from way above everything?

[short bramble]

yeah, I do that

thou, I still need to register different heights

it is a natural environment, with some caves, etc

procgen, in modules

so I want be able not just to scatter from a vertical line straight to a visible floor with no intersection

but also inbetweens

when a hit is register I go upwards again and do more checks

if there is no hit back, is a valid point

and if there is a hit with x > distance and negative dot product of the normal is valid too

if the dot product is positive, is invalid

this second check is a second linetrace from the first multitrace

sorry, hard to explain without the proper screenshot of the leveldesign

but I believe the dotproduct will save me

[faint pasture]

If all your traces are vertical you can just check sign of normal.z

That'll be the same as dot product of normal and Z vector but less math

[short bramble]

ah, correct

talkwing in another chat a EQS could be a cool framwork to find AI spawning spots

[true valve]

In your default third person project, when you run and moving your mouse left/right moves the player, how do you prevent mouse left/right effecting the movements?

[surreal peak]

Eh, you mean that the Character should not run forward relative to the camera?

[true valve]

The player shouldn't rotate as I move the mouse left/right while running.

I did that before but I forgot now.

[surreal peak]

I think this is just a by product of how it's setup

Character uses ControlRotation for the Direction it should apply MovementInput to

And the Mouse adds to the ControlRotation

And then Camera or rather the SpringArm is mapped to the ControlRotation

So moving the Mouse will rotate the Camera and affect in which direction you are running

Do you just want to run into the same direction all the time?

Or do you want a temporary free cam if you hold a button?

[jaunty stirrup]

Hello , i can't unload level using blueprint node

[tawdry surge]

is it a sub-level?

[short bramble]

it won't. Try this instead.

[tawdry surge]

won't work on the persistent level

[jaunty stirrup]

i think

[tawdry surge]

double check the names in the variables are spelled exactly the same as the level names

[short bramble]

ah yeah, don't mind my screenshot, assumed was a instanced level.

[jaunty stirrup]

no its the persistent

how i can change which is the persistent

?

[tawdry surge]

open level will open a new persistent level

oh if you mean switch a sub to the persistent, you cant

[jaunty stirrup]

my map is in the persistent , i wont loose it

[tawdry surge]

then you want to load and un load the streaming sublevels..
You're doing that right

just double check the names

[versed sun]

You can copy nodes and paste them in a text editor

oh, gotcha, IDK on that

[tawdry surge]

Idk how, but if you can write to a file, I'm sure you can save to the clipboard

[limber parcel]

other games solved this by showing a wall of text in a scrollable window that people can just copy

also what kind of game would that be? xD

sounds kinda whacky if the game isnt about coding lol

[quaint geyser]

Copy server codes

to join others

[limber parcel]

https://tenor.com/view/vodka-shot-drinking-gif-7412608

well that code shouldnt be too long so i guess u can just show text and let them copypaste on their own

messing with the clipboard is borderline malicious and can get ur game taken down

[tawdry surge]

Copy clipboard is a function in the engine api..

[winter kettle]

I have an animation of the player (ACharacter) laying on the floor, but the bounds volume of the mesh that is playing the animation doesn't seem to update with the animation, it's as if the mesh is still upright so it doesn't seem to update with the animation, is there a way to change that?

[tawdry surge]

Literally copies data to your os clipboard
Amazing what you can Google these days

@winter kettle if you mean they still can't crawl under stuff it's most likely because you didn't shrink your collision capsule down

[winter kettle]

Yeah, but I want to know how to interact with the mesh in an "odd" animation, like if I do a line trace, the line trace only detects the capsule, not the mesh laid down

[tawdry surge]

That depends on the trace and the collision settings of the mesh and capsule

[quaint geyser]

It's only for hololens afaik

FPlatformApplicationsMisc::CopyClipboard

Unless the docs have their links messed up. Will try it anyways.

[winter kettle]

This fixes my issue

[tawdry surge]

Id check it. It used to be generic..
https://docs.unrealengine.com/5.0/en-US/API/Runtime/Core/GenericPlatform/FGenericPlatformMisc/ClipboardCopy/

[mossy mist]

best way to create a shockwave that grows and damages players?

[tight schooner]

Maybe a collision sphere that gradually expands and sends a damage interface message or something to whatever it overlaps, if that's what you mean by shockwave.

[tawdry surge]

Depends if it can be jumped over and how precise you want it.
Easy way is a series of sphere traces over time.
Most accurate would be to use collision with the particle system, but thats less simple to do

[mossy mist]

yeah, it needs to be jumped over

[tawdry surge]

Then sphere method will require some extra checks to see if the player is near the edge of the trace and isn't too high up before applying damage

[quaint geyser]

Nope, doesn't work.

Never mind, the deprecated method works.

Not sure why they would mark it as deprecated if the new one doesn't work...

Never mind, it works if I change #include "Runtime/ApplicationCore/Public/HAL/PlatformApplicationMisc.h"to
#include "HAL/PlatformApplicationMisc.h"
Remind me to never use C++ again

[raven pilot]

i wanted to know if you knew a way to make it so when i get knocked down by the enemy, i can override the knockdown using certain abilities instead of staying knocked down for the full duration, i believe something with a boolean might help

[faint pasture]

Do you overlap or hit?

[vast kindle]

Heya all, got a stupid question - I am spawning in actors that have physics/etc enabled for them because I have a geometry collection component added to them as well for chaos physics. That being said, my trees literally just fall over when I start the game - I've tried tweaking a few things but I cannot prevent them from just falling over in what I assume is ragdoll for a tree mesh lol. I did roll one of the said trees off a ledge, it fell, broke apart like glass - so I know the chaos physic part is working fine - but I cannot seem to get the tree to stay upright so I can punch it.

[quaint geyser]

You can start the game with physics disabled and then enable it once it’s punched. Better for performance too.

[fast egret]

Morning, I am trying to create to create an FOV slider in my settings menu so the player can adjust FOV as he/she sees fit. However, whenever I'm trying to access it from my widget in my char BP, it seems I cannot access it. Any advise please?

[quaint geyser]

Char ref is null

I would need to see where (and if) it’s being set.

[junior hedge]

what exactly are you trying to access?

[fast egret]

The camera component of my base character to get the current field of view value, which would display in the fov slider like so :

[junior hedge]

use debugs to say if the cast failed and also to print the field of view in the function

[fast egret]

Aha, I'm such a goof. The BP cannot be accessed since it isn't loaded in the menu haha

[junior hedge]

haha

[cloud citrus]

i have a print string linked to an event actorbegin overlap and when i collide with the static mesh, It doesnt register

[flat raft]

Is having a lot of Hard References to the player character.... troublesome in some way?

I assume having the fewest possible is best, but does it have any effect on performance?

[gentle urchin]

Unlikely

You probably should be a bit strict about what other actors can access in the player char tho

Like not let them edit variables directly , but have functions they can call instead

[flat raft]

Thx

[bleak swift]

Anyone have any idea on how I can replicate this code so people can see my sprites flipbook change on other clients

Only works for the client to see their animations switch. Doesn't work on other clients

[gentle urchin]

#multiplayer

[bleak swift]

Well ow.

Can you help anyways

[gentle urchin]

It sounds like code that should run on the server, and replicated through the flipbook component (if it supports replication?)

Or multicast to the clients i guess (still from server)

Tbh not my area of knowledge

[faint pasture]

Use actual velocity, not the inputs

Inputs only exist on local client

Instead of get left right, get x velocity or whatever

[bleak swift]

So instead of using get moveup and get moveright. I should use X and Z Velocitys

[gentle urchin]

X and y, but yes

[white obsidian]

How to make a !=NULL ?

[bleak swift]

Z is my Up Axis since this is a 2d TopDown Game

[gentle urchin]

Thats still odd , but fair enough 😅

Or perhaps im the odd one doing it with x and y :p

[bleak swift]

So there isn't anything additional required?

Just using velocity instead of inputs should fix my issue

[gentle urchin]

Based on only the screenshot you've sent its hard to say

Like

Does it move on clients ?

On other clients?

If so your replication might be setup and doing this would solve it

[bleak swift]

Yes movement works but not flipbooks

Work's now

[gentle urchin]

Perfecto

[ancient stag]

Unsure if this is what you are looking for, but you could convert the Bone Name to Text and check if that is empty.

[bleak swift]

The only slight issue I have is when I hold down W and D or W and A. The character then after if you try to switch directions takes a while to update and on the client they start glitching out

I'll send a video

https://gyazo.com/ebf63002151a8b53d6ddffd95d7d29b5

As you can see I start off walking diagonal and then I just walk to the right. It takes a while to update for others but for the client the character glitches out

[junior hedge]

Under what section are booleans like that under

I'd like to do some studying later with stuff like that

[proud gulch]

names cannot be NULL, and converting them around defeats the purpose of names in the first place, check that name against "None"

[gentle urchin]

Race condition?

Client tries to update it locally still? Nah prob not

[white obsidian]

Yes, converting Name to String worked

[proud gulch]

but why? check the name against the name "None" you can simply use the == operator, the fields on the node even default to "None"

[white obsidian]

if you mean this one, it does not work

[proud gulch]

no the == operator for names

[white obsidian]

And this one works too but

[proud gulch]

literally drag off of the Hit Bone Name and type "==" which should yield the == operator for names

[white obsidian]

Not this one

[proud gulch]

you should check against "None" as mentioned already

[mental trellis]

"None" does not mean a string.

It means typing the word None into that empty box.

[bleak swift]

Our game is against directional movement so we just used 2 variables during Event Tick which were declared true or false by setting them by checking if the keys A or D are pressed or if the keys W or S are pressed and then before the movement events we do a branch to see if they are moving in the opposite direction when you try to press that key and if they are the branch ends itself

[mental trellis]

"against directional movement"

what does that even mean

[bleak swift]

It's a game that uses only 4D Movement instead of 8D

[mental trellis]

8D?

[bleak swift]

8 Directions

[mental trellis]

up, down, left, right, forwards, backwards, spirally and?!

😛

[gentle urchin]

diagonal 😛

[mental trellis]

Ah

[bleak swift]

4 Keys (WASD) * 2 (Combination with other keys)

[mental trellis]

Yeah.

I still don't see why you wouldn't use a vector2d for movement

[gentle urchin]

Nor why an extra check on tick is required

but oh well, doesnt matter much

[mental trellis]

Yeah. If it works, it works.

[bleak swift]

Even though we disabled directional movement this issue still seems to happen. I don't know why, Here is my code

[mental trellis]

In that first screenshot your OR nodes should be XOR

Also you shouldn't use direct key checks, but input bindings

[bleak swift]

Okay I've done both but my main issue still exists

[bleak swift]

Which is this

[gentle urchin]

the last screenshot

im not sure what im looking at

you can simply check the length of the vector

if > 0, then update

the inputs would handle if one or the other is allowed

i'd probably just check if the current velocity direction is contradictory to my latest move direction, and ignore it if so

[bleak swift]

That's my bad btw

I accidentally connected the vector z to the b input of the first one

[gentle urchin]

checking lenght is less nodes 😛

[bleak swift]

You want me to replace the above with this?

[gentle urchin]

not necessary

just a suggestion

probably not the "last update velocity" node either, just the velocity you already got

[bleak swift]

So any idea on the cause of this issue though?

[gentle urchin]

Sorta feels like it would be related to the Event Tick updating the flipbook, but im not sure, sorry

[bleak swift]

Wdym by that exactly.

Is it updating to fast?

[graceful holly]

hello! I have a very stupid problem I can't solve: I am making a platformer in unreal and I want the camera (who's always looking at the character mesh) to update its position only when the character is moving on the ground. In short i don't wan the camera to go up when the character is jumping

the way I was going to do so was to add an invisible mesh, child it to the chara mesh, make so that the camera always looks at that and not at the chara mesh. I would then update the posistion of this mesh on landed

but i'm running into some problems

[tawdry surge]

Easier fix would be to simply separate the character and the camera into two BP's. Then you can choose when to move them together or separately

[graceful holly]

mh, yeah that makes sense but it doesn't sound ideal

seems like a very stupid problem

[rain egret]

i encountered a weird behaviour from ue4, i am using a set timer by function to run a airships engine, a simple rotation easing and add movement node. it runs every 0.02 seconds.
with one ship this is no issue, with 5 or more ships the player spring arm receives significant lag. its like a stuttering

[tawdry surge]

Its because physics requires a collision object be the root of the actor. You can replace the root and separate the camera and the character mesh or flipbook. Thats a little trickier the get looking good

@rain egret seems like alot of effort to not just run it on tick

Especially since. 02 is 50 times a second. Basically tick

[rain egret]

i avoid tick like the plague. the ships run on a gear system meaning gear 3,2,1,0,-1,-2,-3 exist
that also means the airships have to run add movement constantly

[tawdry surge]

Do not avoid tick

Lots of stuff ticks

[rain egret]

so you think id do better with tick?

[tawdry surge]

Yeah

Thats how input, movement, and animations work pretty much all the time

[rain egret]

isnt this too complex too run each tick?

[tawdry surge]

Not even close

[rain egret]

well alright i will give it a shot

huh indeed, set timer creates 33 ms at max

and tick only does 30 at max

[tawdry surge]

@graceful holly oh you know what, you could also use the spring arm to handle it..
When the player jumps, save their location and then every frame add the difference to the spring arm target offset. Should theoretically keep the camera in place during jumps

[trim matrix]

Guys how to get stat unit values in blueprint

Plz tag me while answering

[rain egret]

i already capped the fps at 45 but the ships are still too heavy, despite the components having all their tick turned off and the generate overlap and collision is false as well.

[rain egret]

no idea, that seems like some debug stuff you might only be able to access trough code

[graceful holly]

I think i got what you said but i'm not sure about he offset part, if that doesn't bother you can you show me an example

[trim matrix]

Not a problem.I need to way to get them either in c++ or blueprints

[tawdry surge]

I'm not at my pc at the moment but target offset is a property of the springarm
You can find it in the details of the springarm component.
Just play with it a second in the BP viewport. You'll see what I mean

@rain egret in the left hand corner of the level viewport, the little arrow icon is where you access your stat overlays. You can use them to see what is killing you

[tight schooner]

@trim matrix don't think it's possible with pure BP. Maybe see if anyone's made a plugin (on the web and in the UE marketplace) that exposes that stuff or ask #cpp

[trim matrix]

I already did.I don't have any problem with solution being c++ as well

[tight schooner]

@rain egret the thing about timers is they're still quantized to the tick (the framerate), so if you're doing movement on timer events the results will be stuttery due to a mismatch between the timer rate and the framerate. Fundamentally UE processes game logic only before drawing a new frame.

And on that step, it checks if any timers are due, and then calls the events... So timer events are always quantized to that

To solve the perf issue you need to look into performance profiling

It's a deep area that involves multiple tools

But for starters you can type Stat Unit into the console to determine if the issue is game thread (logic, physics, component update), draw thread (draw calls), or GPU

Always measure in "play as standalone" mode (or a packaged export) cuz "play in editor" is always slower

[keen hedge]

Does polymorphism/dynamic dispatch work for blueprints inheriting a base class? I.e. if I cast an actor from the world/level into the base class and call functions on the base class, will it get dynamically dispatched to the actual child blueprint class's implementation of the function or will it be called on the base class?

[dreamy yacht]

hello, could someone help me ? I am making an arcade racer, where cars dodge the incoming obstacles. I am struggilng with crash-to-desktop error, but I cannot find the exact cause.

When a car hits some obstacle, or falls of the track it gets respawned

I have already changed all the nodes from "Teleport" to "SetActorLocationandRotation" but still CTD is occuring usually once a 2-3 minutes

saying

LogPhysics: Warning: UWorld::FindTeleportSpot called with an actor that is intersecting geometry. Failed to find new location likely due to movement component's 'UpdatedComponent' not being a collider component.

I have set a code, that disables all the collision response ( for the moment of respawn ) for all the cars, but crash still happens

[tight schooner]

If I'm reading you right, yeah, you can cast to the parent class and use it as a sort of interface to talk to child classes

That's a normal thing to do in UE

[dreamy yacht]

hello, could someone help me ? I am making an arcade racer, where cars dodge the incoming obstacles. I am struggilng with crash-to-desktop error, but I cannot find the exact cause.
When a car hits some obstacle, or falls of the track it gets respawned
I have already changed all the nodes from "Teleport" to "SetActorLocationandRotation" but still CTD is occuring usually once a 2-3 minutes
saying
LogPhysics: Warning: UWorld::FindTeleportSpot called with an actor that is intersecting geometry. Failed to find new location likely due to movement component's 'UpdatedComponent' not being a collider component.
I have set a code, that disables all the collision response ( for the moment of respawn ) for all the cars, but crash still happens

This is the error related warning message, I think this error is responsible for crash Warning: UWorld::FindTeleportSpot called with an actor that is intersecting geometry. Failed to find new location likely due to movement component's 'UpdatedComponent' not being a collider component

because it was one of the last in the log

[tight schooner]

Is there a way to make your game crash on demand? I don't know anything about your issue personally but it sounds like some tedious debugging is necessary

[dreamy yacht]

I am in real need, the game is prepared for early access in 2 weeks and I cannot offer game with such issues

[tight schooner]

You have to isolate the issue, figure out what's causing it

[dreamy yacht]

nope

I've tried to remove all the "potentially error causing actors" from map

but after it it still crashes like freakin' Gothic3

[tight schooner]

Have you tried packaging the project? Just asking cuz sometimes the errors in packaging will reveal problems.

[dreamy yacht]

yeah

freshly packaged

no errors found!

damn

[tight schooner]

Damn. Sorry, all I can do is stab in the dark. I got nothin'

[dreamy yacht]

If I send you the log ?

anyone could investigate it ?

it looks like so, there is some problem with "teleport"

and colliding / collider / collision thingy

but none of the respawn points is blocked by a static mesh

[tight schooner]

What if you made a debug BP that gets all actors and disables collisions

See if the game crashes from collisions or not

[sonic crest]

hello,
I am trying to make a prediction node, that draws debugs on the front of the character and then it makes an angle while it goes down to the right slowly, seem to be working on 1 direction only and the other directions it snaps or doesn't work at all.
any help?

[sonic crest]

I used a timeline

[tight schooner]

@sonic crest dunno. You should show the channel your BP node graph and maybe a screenshot or video of the snapping behavior.

[dreamy yacht]

Could you clarify your thought ?

[sonic crest]

any help?

[tawdry surge]

He means if you set no collision on everything and the error stops, you know its from a collision issue @dreamy yacht

[rain egret]

alright will do

i wonder tho, i am using attach to actor to attach modules to a frame, would it be better if i were to additionally make the attached things a child of the actor i am attaching them to to minmise draw calls? is what i am saying even making sense?

example, everything you see here is a actor attached to the ship. the ship in itself is essentially just the frame that governs the shape

every part can be damaged and shot off

[tawdry surge]

It would help if you packed it or made it into a single actor
You can still disconnect/destroy components

[rain egret]

how do i do this? they are created at runtime and i can simply pick up a wall piece and attach it

[tawdry surge]

You can add components at runtime just like actors

[rain egret]

so... instead of attach to i should use an alternative?

[near fjord]

hi, is there something extra i have to do get get the web browser plugin to work?

[tawdry surge]

@rain egret nah you would just create the component instead of an actor and attach the component to the ship actor wherever you like

[rain egret]

hmmm

now i thought long and hard about this and i dont think this will be a solution since all parts need to process being damaged, some have special functions and they need to run events like on click

to my understand it would work like this where the ship stores the attached actor in a map and uses the component as a key

this would work for one way but the player would have no way to access that data since the component has no events

[tawdry surge]

Static mesh components have all those capabilities

They do have events

[rain egret]

oh?

[tawdry surge]

Scroll to the bottom of details

[rain egret]

then thats worth looking into

i dont think i will do this for ever module since the majority of modules without any function are the wall/ floor elements

they simply receive mesh data

i will experiment with this later

[sonic crest]

please?

[rain egret]

sorry man i dont know either

[tight schooner]

have you determined that your performance issues are caused by draw calls? I'd make sure before committing to any optimization.

generally the drawing engine doesn't care about how stuff is structured in BP. Every mesh that is either unique or has its own unique material (or dynamic material instance) is a new draw call AFAIK. Otherwise the engine batches meshes that use the same mesh & material together into one call automatically.

but anyway you need to figure out if the bottleneck is game thread, draw thread or GPU

[rain egret]

there are two things that i noticed, if the ships dont move, no matter the size or the attached parts there is no performance drop.
if i enter unlit mode it runs way smoother, the current normal is 45fps and 22ms

45fps is capped

[tight schooner]

huh. Usually stuff moving = game thread... And lighting modes can be GPU or can be draw thread (cuz shadow casting = draw calls)

[rain egret]

my pc is utter shit so i wouldnt know if its the game or the pc fucking up

i will hold off of the component option for now

but its certainly interesting

[tight schooner]

@finite crown doesn't sound like a blueprint issue. Maybe try #cpp idk

[finite crown]

oh ye sorry - my bad!

[rain egret]

All the modules I have don’t use any tick, no overlap and all the functions they’d have are called only when needed.

[tight schooner]

Moving actors that have a lot of components can be expensive to update, I've heard. I don't have a fine sense of how much is too much or how to work around it

[rain egret]

I guess that’s just how it is with those sort of building systems

[tight schooner]

... I found where I heard that tidbit: https://youtu.be/2edoacF53F0?t=1740

[rain egret]

Given, I don’t test with 1 or two ships but with 5-10 which would of course produce lag

3 ships work perfectly lagless

I will check that link later

[tight schooner]

yeah I could see how a crapton of moving components could potentially be heavy... idk if there's some UE system or maybe plugin that can dynamically bake out proxies or whatever of complex actors but it'd be something to look into

[rain egret]

For sure, but god knows I already googled every iteration of “UE4 many attached components move performance”

[rich isle]

Guys can you tell me how speed is measured in UE4?
For example if I want to simulate speed of sound what should I put in speed in projectile movement?

All speed is cm/s?

[fast egret]

To save FOV settings, I suppose I have to add this to me save game so the FOV settings stay persistent?

[gentle urchin]

Do you need them all as components ?

Ism could be an option?

[rich isle]

Sorry for ping I forgot to remove reply

[limber parcel]

the question is if the engine can even handle that high speeds

[gentle urchin]

100x speed at 0.01 time dilation ? Or wasnt that it ?

[rich isle]

yeah

[gentle urchin]

If that was it, you can just set custom time dilation on the actor itself instead of the speed increase

[limber parcel]

in source 2 stuff just falls through the map at high speeds

[rich isle]

let me send the blueprint

[gentle urchin]

Theres global and custom time dialation

[rich isle]

I guess it is that

It creates these artefacts on high values

[gentle urchin]

Set custom to 1

[azure mason]

lmfao Jacob's Ladder hospital scene

[gentle urchin]

Global to 0.01

[rich isle]

So I wanted to know how I can fix it, may be remove blur or reduce it when I increase speed

[gentle urchin]

Perhaps this is the camera blur messing up😵‍💫

[rich isle]

now character just moves slow but artefacts still there. The idea was to make character fast enough to dodge bullets

[gentle urchin]

How fast do the bullets go

[rich isle]

34000

[gentle urchin]

Lol

340 at 0.01 then

[rain egret]

No, they are all actors, I put the component idea aside

[rich isle]

well at 100 he at least moves comparable to them

[gentle urchin]

Do they all need to be attatched actors?

Im not really sure which parts is actors, and which is not

And at low count, ism prob isnt worth it

[rain egret]

Yes, they are all modules that can be shot off and damaged

[gentle urchin]

What does the profiler say is the culprit ?

Whats taking so long

[rain egret]

I am at the gym 😦

I suffer too

[gentle urchin]

Ouf, enjoy the suffering

[gentle urchin]

Reduce global time even more

[rain egret]

Will do the profiling in an hour

[raw karma]

Hi all, is there by chance any sort of BP alternative to sites like, leetcode, and codewars? To practice programming in BPs? Just curious. Trying to learn BPs and do one thing at a time as I'm really struggling with learning how to program.

[tight schooner]

@raw karma probably try learn.unrealengine.com if you need something structured

[digital bison]

Does anyone know why my skeletal mesh won't copy it's parents translation? It's parented to a default scene root and the default scene root moves but the mesh doesn't

[mental trellis]

Is the mesh set to absolute positioning?

[paper galleon]

I'm doing stuff at mach5 - mach 10 without any issues

[limber parcel]

what about collisions and physics?

[paper galleon]

not doing any of that. Just projectile movement.

I haven't tried it with physics but I assume the result will be newtonian. May not be pretty but mathematically accurate

In real life hitting an object at such speeds would likely cause an explosion so... yeah,

[limber parcel]

haha thats true lol

[rich isle]

can I edit motion blur of a camera using keys? If yes then how? I can't find node to call it

[limber parcel]

im just worried about projectiles just going straight through stuff at these speeds

[paper galleon]

You can turn on CCD

[limber parcel]

whats that?

[still plume]

Hello guys. I can make a media player playlist from BP? I have some wav on a folder and i wanna get from BP and put into a playlist to play with media player

[limber parcel]

i dont see why not

[rich isle]

I actually thought about making light speeds at some point....

[paper galleon]

Continuous Collision Detection. Solves this very problem your asking about. Rather than checking collision at intervals, it traces from the current position to the last position and checks if any object was passed through. Then it corrects for collision

[limber parcel]

sounds legit, i wish source 2 had something like that lol

[rain egret]

okay so it seems the draw is the main issue

[paper galleon]

That one might be too much. But who knows. Never tried

[paper galleon]

It probably does. Its pretty standard for a game engine

[still plume]

i try to make a playlist on the event graph but i don't know how create them

[rich isle]

well on the bright side timescale 300000 works

[limber parcel]

but rubicon physics lol

[paper galleon]

Ohh nice. was about to suggest slowing every one else down. Time Dilation stuff

Physics time dilation btw not Unreal engine

[limber parcel]

what exactly is the issue? just make an array with ur sound paths and work with that

[rich isle]

but it seems 0.000001 is a low limit for timescale

[paper galleon]

but time scale 0 works

[rich isle]

hmm

[paper galleon]

doesn't it? I'm sure I must have set it to 0 before

[rich isle]

I guess for objects in slow motion it would work

[rain egret]

definetly a draw issue

[paper galleon]

right

[digital bison]

Sorry I didn't see your message. It's a skeletal mesh so I'm not sure if there is a setting for aabsolute position but I can't seem to find it

It's strange the default scene root moves around with me while the skeletal mesh just stays where it is

Also, it doesn't seem to be parented when in gametime but It's very clearly parented in the bp

[rain egret]

and on hit it seems to get expensive, the hit event checks for a special tag that should trigger a bounce reaction

[limber parcel]

well then make the mesh the new root?

[gentle urchin]

5k drawcalls for how many ships ?

[rich isle]

but I still need to edit motion blur somehow

[rain egret]

7 ships

[limber parcel]

just drag ur mesh on the scene root

[digital bison]

Why?

[still plume]

but how can take all file on a path? i don't see any bp that can find all file in a folder and return a array

[limber parcel]

because.

[limber parcel]

well you can always add them manually, but im pretty sure there are functions to get a folders content

[rain egret]

if they dont move they arent a issue

[limber parcel]

are that warcraft textures?

[faint pasture]

Use line trace projectiles

Trace velocity*timestep distance per frame

[gentle urchin]

12ms, whats the draw time without any ships?

[limber parcel]

its more about vehicles and the likes

i mean i doubt i will have issues with collisions in the game im making anyways

just wanted to know if the engine can handle it

[rain egret]

without any ships in the scene its this

[gentle urchin]

7 ships add 10ms to drawtime then

That sounds.. intetesting

What gpu is this

[rain egret]

nvidia geforce gtx 1660

these are massive ships monsters that i just use for testing the performance in the most extreme case. no ship will ever be generated with so many parts

the ships also arent build in one go but rather step by step as to not cause massive lag spikes when spawned in

that was 12

[still plume]

ok i find a plugin internal to the unreal the return all file into folder. Thx you so much

[limber parcel]

😁 👍

[tight schooner]

Type profilegpu in the console (play in editor mode) to get an analysis of that frame (for gpu perf only). Stat RHI will give you draw calls (play as standalone is better for that).

I saw your video... Not sure what to make of that other than everything is expensive 😅

I was thinking about your issue earlier about moving the ships being expensive. You could do the console game thing of moving the ones in the distance at a fractional rate — every other frame etc

[gentle urchin]

That expensive tho?

Sounds a bit extreme

How many parts are each ship? 1000?

[tight schooner]

If you're targeting 30fps then you want to stay under 33ms... Depends what you're targeting on which platform

But if you're already getting into the mid 20s (ms) in an empty dev environment with nothing moving... Might not bode well

[gentle urchin]

Thats what i was thinking as well

This is the easiest scene you'll get with 7 ships

So makes me wonder what makes a ship and a component

[rain egret]

42

[gentle urchin]

Like.. perhaps its actually something to gain from using Ism😅

42x7 =~300 moving things

[rain egret]

some trickery i cant use because i plan for this to be a multiplayer at some point. far far in the future

[limber parcel]

5.1 has a bunch of bug fixes that might help with performance

[gentle urchin]

Moving to c++ will also probably save you some

But

Its the gpu that struggles

[limber parcel]

you should make it multiplayer compatible already, your singleplayer will profit from it too as far as i understand it

[rain egret]

i think its important to say that my pc crashes like a couple of times a day because of the gpu

[limber parcel]

and its really not hard

[mental trellis]

On the settings for the skeletal mesh component, in the transform, if you right click the word location, it should give you options for relative or absolute. You want relative.

[rain egret]

i will look into that source, thanks

hm

also i would have changed to 5.1 but its slower for some reason. i did all the updates in my project. to drag and drop modules i have a physics handle thats bound to my mouses location that updates its location using a timer

in ue4, its quick. in ue5 its like walking trough glue

[gentle urchin]

5.5mill tri's isnt that quite much?

[dark crow]

Depends on the scene, draw calls are not optimal at all either

[gentle urchin]

300 objects, thats like 20k per object

Maybe my phone is hiding details but it doesnt look like it should be that many

[rain egret]

I wouldn’t know what’s causing that many tbh, does it count invisible things as well?

Each wall element has only 4 triangles

Each structure beam, normal ship has 79 has just 20 vertices

[gentle urchin]

Nested loop mistake?

Making like thousands of objects? 😅

[rain egret]

I will check after lunch. But I don’t think that’s causing it. For debug purposes there’s a simple build up that shows all the parts of a normal ship. And if it would add many many objects you’d see them

Those nodes that are added in between the frames are made out of the mesh’s vertices, those vertices were first made unique to avoid doubles as well

[digital bison]

Got it, thank you

[lyric rapids]

anyone know a good tutorial for wall running bp

[trim matrix]

Hey I need some blueprint help. I have an elevator working within my level but I am having troubles finding and how to change how high up the elevator goes. Anyone who can help dm me!

[lyric rapids]

for UE5

[broken quiver]

do you need to detach actor to reattach actor to another?
or just use attach actor. detach to remove all parents?

[rain egret]

also uhh. in a completely empty project. at standalone playmode, i get 22ms

so maybe my ships arent that bad

maybe my graphic card is just terrible

i wouldnt be suprised

what are yall normal ms in a empty map?

[icy dragon]

What stat unit says about it?

[icy dragon]

It stalls at 45 FPS

[rain egret]

45 is capped

[icy dragon]

Uncap the framerate

[rain egret]

holly shit what

why is it better now

shouldnt capping the fps be good?

[young frost]

Hello! So I am grabbing an object similarly to the way the player in Portal grabs, as in if you are holding a cube and this cube collides with a wall it will not rotate and return to the Physics Handle's location facing the player. But in my game I am giving the player the ability to rotate the cube in the X and Y axis, What I want is to constraint the grabbed component's rotation while the player is not intentionally using the rotate mechanic. My physics handle has no node called Constrain Rotation or something similiar. I tried to set the physics handle component rotation to 0,0,0 in a custom tick event and nothing happened.

[left carbon]

Is there an optimal way to find a value in a map and also check if it exist, without doing a search twice??

I know I could make an impure find, but maybe there are some secrets 🙂

[rain egret]

the physics handle wont update the rotation if you only use the location option i think

[flat coral]

Is there a way to get objects that have a certain component? Kind like GetActorsByClass?

[rain egret]

the same 7 ships in the scene, i cant believe capping the frame rate caused this level of issues

[gentle urchin]

🤣

Well nice you solved it i guess

Ohh

Its the gpu that handles framecaps?

Who'd guess.. i wouldnt

[rain egret]

same. i am amazed

so basically, the big evil is the draw

think i will cap it to 60 maybe that will work better

[icy dragon]

Or even better, have adjustable framerate cap

[raw karma]

Hi all, is anyone familiar with some how separating the first person (weapon, flashlight, etc) from the game. So collision doesn't overlap. I saw a video on how games render out the player and the game environment separately, so visually the gun or whatever the player holds doesn't clip through the level. Even with some collision settings tweaked, it still just doesn't feel consistent. Anyone tackle this or know a resource to educate me on this

[rain egret]

well celebrated too early, 7 moving ships still eat performance

[zealous moth]

Why do you have over 2 million triangles?

Are your meshes needlessly complex?

[tight schooner]

I didn't want to ask cuz idk jack about nanite

Or dynamic meshes

But if it's a ue4 style project then that's a lot of tris

Meshes need LODs

[ornate trail]

Anyway to nudge a weapon a bit when attaching static mesh component? I can rotate them with the relative transform but some of the handles are too thick and would look better if they could be moved a tiny bit inwards.. relative transform seems to have no effect on location even with 'manual attachment' turned on.

[faint pasture]

BRruuuuUUH

[icy dragon]

2 mil tris isn't that huge of deal even for PS4 slim kind of horse power

[obsidian arch]

Hey, whats the best way to smoothly cut from one camera to another?

[zealous moth]

I get that part but considering his tanking performance, I feel he runs it on a toaster. And I mean, look at the scene... it's so bare, where does the triangle count come from?

[icy dragon]

I do remember he's building the ships with procmesh

I guess UE4 procmeshes tanked the performance?

[icy dragon]

Jump cut always happens instantly.
You might be using the wrong term

[obsidian arch]

Hmm, well thinking about it jump cuts should also work

[rain egret]

actually the creating of the ships is smooth

i can spawn in any amount and it would not cause a lag spike

moving them tho

[gentle urchin]

Gtx1660 toasters, where to buy? :p

But the tri amount doesnt add up

[rain egret]

its probaly the engine block i made

[gentle urchin]

7 ships
79 beams á 20 tris
42 components á 4 tris

That looks like 2 mill alone lol

[rain egret]

this seems to be of one ship

i will make some lods maybe that fixes it

[gentle urchin]

Feels like the ships should be super cheap to move

[main lake]

Is it possible to remove units added after numerical values for the character walk speed and other properties like that ? Please ping me if any answer 🙂

[zealous moth]

there is something wrong with his game

[gentle urchin]

I agree

[zealous moth]

his CPU is doing something behind the scenes

on a bare bones project, my game is at 4 ms

[gentle urchin]

Well.. it says gpu but 🤷‍♂️

Hmm..

[zealous moth]

i got 8 ms for GPU but draw is at 0.4

so his Draw is high

[rain egret]

the 22ms we already found out was due to the 45fps cap

[gentle urchin]

Gpu is total frame time?

[rain egret]

after removing the cap the ms returned to lower values

[zealous moth]

@rain egret I am looking at your latest screenshot, why is game at 10 ms?

stuff on tick?

[rain egret]

lol nah, not even generate overlap events

i spawned in 7 ships

7 moving ships

this is one ships impact,

[daring vapor]

Is there a way to get objects on a spline to simulate physics, like a set of dominos?

[rain egret]

only way i could think of would be to use the spline for placing the dominos. at beginn play youd have domino actors be spawned along the spline

[daring vapor]

I was thinking of that, but I'm unable to figure out how to spawn them along the spline. Any hints?

[gentle urchin]

Spawn Actor of class

i would think dominos and physics is a bad match tho

[rain egret]

https://www.youtube.com/watch?v=-V6D5WtemMI check out this, pretty sure theres some code in there that you can use for what you are trying to do

[gentle urchin]

No need to move them, just spawn them

seems you're already spawning them along a spline really ?

So all thats left is to activate physics on them ?

[rain egret]

nah i think hes using a mesh to create those

as in thats still the spline and not individuals

[daring vapor]

facepalm Duh, thank you.

[gentle urchin]

splinmesh ?

looks like regular static mesh actors but..

[ocean gate]

Hey I need some help with blueprints, I want to rotate this arrow around a the ball by simply moving the mouse left/right. However, I can't seem to be able to figure out how to do it. Using this setup it doesn't really work and it can only rotation roughly halfway. Any help would be much appreciated!

Basically, my problem is that I can't figure out how to properly distinguish between moving the mouse left and right

[gentle urchin]

you want add relative rotation

[ocean gate]

AH!!

That works perfectly, I can't believe I missed that 😅

[ocean gate]

Thank you so much!

[gentle urchin]

No worries