#blueprint | Unreal Source | Page 533

visual lion Sep 17, 2020, 10:33 AM

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it was what I thought

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basically what I thought and should have been is that I was setting the timer, when the world was getting loaded

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so the timer was actually deleted since the world was getting disposed and it was starting to load a new one

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https://gyazo.com/c273943b038a6a1c2205c9d325b7468e

Gyazo

▶ Play video

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all the read arrows are the tanks

fallen glade Sep 17, 2020, 10:38 AM

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Is there a way to use the navigation mesh in a shader? I'd like to show my players where they are allowed to go to, I've posted already in graphics but maybe it's something I have to do through blueprint? the closest thing I can find online is this dude https://youtu.be/YYH2qjzpZGo?t=493 but I have no idea on how to do what he's doing with blueprints

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YouTube

Mitch's VR Lab

Mitch's VR Lab Ep08 - UE4 - VR Content Examples

Description: An introduction to my VR Content Examples, an attempt to show developers examples of common VR functionality in one project.

UE4 Forum Thread : https://forums.unrealengine.com/showthread.php?96447-Tutorial-Mitch-s-VR-Lab-an-introduction-to-VR-in-UE4&p=449389#post...

▶ Play video

visual lion Sep 17, 2020, 10:44 AM

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@tight schooner and @trim matrix thank you for all the help

trim matrix Sep 17, 2020, 10:53 AM

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@visual lion we didnt do a whole lot but we tried haha

native terrace Sep 17, 2020, 10:57 AM

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so i have this strange behavior with a blueprint that randomly stops working, if i just add a print node at the end of execution flow, than it starts working again
anyone would know what can cause this?

maiden wadi Sep 17, 2020, 11:02 AM

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Not without seeing it.

native terrace Sep 17, 2020, 11:06 AM

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hang on

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your eyes might bleed

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if i notice it doesnt work, i just compile it even without touching any nodes and it works again FeelsDankMan

trim matrix Sep 17, 2020, 11:50 AM

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Ok I'm still learning Unreal Engine. Anyone know how to destroy terrain in-game?

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Like a voxel game or like Astroneer

drifting mulch Sep 17, 2020, 12:12 PM

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@trim matrix That's a really complex thing to do. Like really, really complex. I don't know how experienced a developer you are but here's some resources (via Sebastian Lague)
http://paulbourke.net/geometry/polygonise/
https://developer.nvidia.com/gpugems/gpugems3/part-i-geometry/chapter-1-generating-complex-procedural-terrains-using-gpu
https://people.eecs.berkeley.edu/~jrs/meshpapers/LorensenCline.pdf

I doubt Unreal has built in support for this.

worthy frost Sep 17, 2020, 12:16 PM

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there is the Voxel Plugin that has this

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https://www.unrealengine.com/marketplace/en-US/product/voxel-plugin-free

Unreal Engine

Voxel Plugin FREE by Voxel Plugin in Code Plugins - UE4 Marketplace

State-of-the-art Voxel Plugin with powerful editor & runtime tools

drifting mulch Sep 17, 2020, 12:23 PM

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And it's free? Awesome

maiden wadi Sep 17, 2020, 12:49 PM

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It works incredibly well and is very easy to learn too. Phy did an amazing job on that.

pine trellis Sep 17, 2020, 12:57 PM

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is this the correct way to get a reference to a gun actor in a blueprint?

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I keep getting this error

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they are all the same gunbase from class

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hearty moss Sep 17, 2020, 1:18 PM

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'Accessed None' is telling you that it didn't find any gun actors

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this can be for many reasons. when is your gun spawned in? youre trying to set a reference to it on construction of your character, which is one of the first things that happen when you begin play

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so it may be trying to find the gun before it spawns in

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also i'd recommend spawning the actor in your character and attaching it to a socket from there if youre trying to do a gun pickup system

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that way you can set the reference when you spawn the gun

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@pine trellis

trim matrix Sep 17, 2020, 1:29 PM

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Yay thanks for the support, really appreciate it

pine trellis Sep 17, 2020, 1:33 PM

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is the construction script suppose to the be place where I call the reference using get actor of class? because if I promote it to a variable its just called gun base.

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or since I am spawning, should I spawn it and use the spawn from event begin play as the refernence?\

hearty moss Sep 17, 2020, 1:34 PM

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the construction script is used for anything that you need to setup when the blueprint is created, which won't happen often if you're new

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when is your gun being spawned?

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i would recommend adding it as a component in your character

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then you can reference the gun directly in the blueprints

pine trellis Sep 17, 2020, 1:40 PM

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i spawned it like this, no more errors but I cant grip the gun in VR anymore. im getting the gun reference from the spawn actor but its not gripping

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I removed the construction script

hearty moss Sep 17, 2020, 1:41 PM

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i can't help you with VR stuff im afraid

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i have no idea how VR interacts with this kind of pickup system. my bad i didn't realise you were working with VR

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you should post this issue in #virtual-reality too

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and you might wanna fix those errors. seems like they might be important haha

pine trellis Sep 17, 2020, 1:59 PM

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well its weird this works the same as the construction script but if I dont place a gunbase on the map it wont spawn

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I get the error again if the gunbase is NOT placed on the map

gusty shuttle Sep 17, 2020, 2:04 PM

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My scene component (which houses the arrow component) seems to angle up every time I activate the aiming system. Any tips to get that arrow horizontal to start with?

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On grab, it shoots to this position

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gusty shuttle Sep 17, 2020, 2:37 PM

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On start, it's horizontal, but once I grab a enemy (to throw it) my scene component goes on a wack angle, any tips would be great

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crude valley Sep 17, 2020, 3:31 PM

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is Advanced Locomotion System V4 worth using? or better off making my own from scratch'

pine trellis Sep 17, 2020, 4:29 PM

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does anyone know why I cant get this gun to attach to my character?

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the gun just floats in the air and doesnt move

earnest tangle Sep 17, 2020, 4:34 PM

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I don't see an attach actor node in there

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you have to call one of the attach nodes otherwise it won't have any attachment to anything

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the transform is just for position, rotation and scale

pine trellis Sep 17, 2020, 4:38 PM

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hold on I think I just discovered a bug im serious im going to try to replicate it

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ok so basically this code right here works, only if I place a GUNBASE on my map, my character can spawn with with its gun attached and it works with my VR hands

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hardy sentinel Sep 17, 2020, 4:41 PM

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Is it possible to make a text literal by default not localized instead of creating a localized id? Also in blueprint enum descriptions are by default text localized ... why? Can I disable it?

earnest tangle Sep 17, 2020, 4:48 PM

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@pine trellis you can replace the "get actor of class" with "spawn actor" and it should work without having one in the level then

pine trellis Sep 17, 2020, 4:49 PM

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im having a spawn actor bug

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like this it works and I can grip my gun in VR

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if I do it like this the GUNBASE spawns in the air and I cant crab it anymore, it just floats in the air and I cant do anything to di

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is there anyway to change all these to another variable? I want to create a variable from the spawned actor right now its calling the variable for the actor from class

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like a quick way with multiple changes at once?

maiden wadi Sep 17, 2020, 5:04 PM

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@gusty shuttle You still having issues with that scenecomponent?

earnest tangle Sep 17, 2020, 5:12 PM

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@pine trellis so basically you want to use the actor which exists in the world as a "base" and spawn a new one based on that?

ruby oriole Sep 17, 2020, 5:45 PM

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in the player controller, is there an event that gets fired when a new pawn gets possesed ? i do need to get the camera component of the current pawn to move it but i dont want to check the controlled players camera each frame

maiden wadi Sep 17, 2020, 5:50 PM

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There should be an event for it in both the controller and pawn classes. OnPossessed or something.

ruby oriole Sep 17, 2020, 5:51 PM

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oh, you are right

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thank you!

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when i first looked i had the sensitive search on once again

primal smelt Sep 17, 2020, 5:54 PM

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Hi everyone. Does anybody know how I could get a reference to the number of indexes in an array? I just want to be able to press a button to print a string which gives the total number of indexes at that time.

ruby oriole Sep 17, 2020, 5:58 PM

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isnt there a getlength or getcount for an array oldboy?

hearty moss Sep 17, 2020, 5:59 PM

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it's length

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length gives you the number of items in the array

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@primal smelt

ruby oriole Sep 17, 2020, 6:01 PM

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okay i ran into a tricky problem. In my Controller, i can get the Camera Class, but how do i get the spring arm the camera is attatched to ? There has to be an easy solution i am unable to find with google

primal smelt Sep 17, 2020, 6:02 PM

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@ruby oriole @hearty moss perfect, thank you! I'm just having a look at some code I saw somebody put together for a time rewind mechanic. Within a second there are a hundred indexes! It doesn't seem to clear indexes so this can't be good for performance, right?

ruby oriole Sep 17, 2020, 6:03 PM

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i think so, if you have hundreds of indexes it will become a problem in the long run ... but if you only need 5 seconds, maybe you need to build a custom solution and clear indexes older than 5 seconds somehow

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i am way to new in UE4 to be a helpful advice here, sorry mate

hearty moss Sep 17, 2020, 6:04 PM

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it depends how its set up. like what the items indexed are

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i'm assuming timestamps

primal smelt Sep 17, 2020, 6:06 PM

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@ruby oriole That's what I'm thinking, not really intending to implement this into my project but thought I'd see if I can play around with it and make it viable.

ruby oriole Sep 17, 2020, 6:07 PM

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i have implemented it in another engine already so it is possible without a huge overhead. But for UE4 you need to write some things yurself to make it run smoothly

primal smelt Sep 17, 2020, 6:07 PM

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@hearty moss It's transforms and rotations of an actor, it runs off every tick

hearty moss Sep 17, 2020, 6:07 PM

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@ruby oriole im assuming youre talking about player controller

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camera boom here is the spring arm

ruby oriole Sep 17, 2020, 6:08 PM

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the most simple way would be to have a queue where you add new items each frame and remove items at the other end of it once your queue is longer like 5 times your current frame rate. Thats not a perfect soltuion but it should work

primal smelt Sep 17, 2020, 6:08 PM

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Thanks for the suggestion!

ruby oriole Sep 17, 2020, 6:08 PM

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@ruby oriole im assuming youre talking about player controller
@hearty moss
Thanks, i was looking how to get the parent of the camera actor, but it simply is "Get Attach Parent" which is strangly named but exactly what i was looking for

hearty moss Sep 17, 2020, 6:09 PM

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wait is there any particular reason you're doing it that way? @ruby oriole

ruby oriole Sep 17, 2020, 6:09 PM

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Whenever my controller changes the controlling character, i need the Spring Arm which the camera is attatched to.

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this is the code i came up with

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so my controller can controle the camera and not let the pawn handle the camera itself

hearty moss Sep 17, 2020, 6:10 PM

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ahh yeah that usage makes sense

ruby oriole Sep 17, 2020, 6:12 PM

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but the code there doesnt work

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somehow my CameraSpringArm gets set to none ... i guess the cast fails.

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I just need the TargetOffset of the spring arm in the camera section.

white crypt Sep 17, 2020, 6:14 PM

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https://prnt.sc/uj2qud

Lightshot

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Captured with Lightshot

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you need this i assume

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the class you are getting is not the same that you are casting to

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you can always add a print string and plug in return value to see what you are actually getting to return

ruby oriole Sep 17, 2020, 6:17 PM

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yeah ... but with that i would get all the spring arms or jsut any spring arm, right ?

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my pawn has multiple of them, 2 currently ... so i am not sure which one i would get ?

white crypt Sep 17, 2020, 6:24 PM

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hmm i think it will just return the first one

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cant you store your component ref before you posses?

ruby oriole Sep 17, 2020, 6:30 PM

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hrmm

white crypt Sep 17, 2020, 6:30 PM

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@ruby oriole https://prnt.sc/uj30ep

Lightshot

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you can use this

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to get all of them

earnest tangle Sep 17, 2020, 6:31 PM

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If you know which one you want you can also cast to your class and just get it by name

ruby oriole Sep 17, 2020, 6:31 PM

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yeah but that still doesnt help me. Getting all spring arms isnt the problem. I need to find the one spring arm the camera is attatched to

earnest tangle Sep 17, 2020, 6:31 PM

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it might be easiest to just save it into a variable when you attach the camera to it

ruby oriole Sep 17, 2020, 6:32 PM

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i am sure there is an easy solution in UE4 ... but i cannot find it. I was certain that if i get the camera component somehow i could get the spring arm its attatched to but that doesnt seem to work

white crypt Sep 17, 2020, 6:32 PM

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yeah I also suggested storing the ref beforehand

earnest tangle Sep 17, 2020, 6:32 PM

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there might be a get parent component or something on the camera component

white crypt Sep 17, 2020, 6:32 PM

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or instead of checking class in my example you could add a tag and check for that

ruby oriole Sep 17, 2020, 6:32 PM

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yeha that will probably be my solution in the end, but i am not a big fan of it

earnest tangle Sep 17, 2020, 6:32 PM

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but saving the component to a variable would definitely be a pretty easy way to do it

white crypt Sep 17, 2020, 6:32 PM

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yup checking the parent attached to it should work too

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i also dont understand why you dont want to store that ref before posses

ruby oriole Sep 17, 2020, 6:34 PM

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Because the controller i write should be useable for all type of game objects and different scripts on it. If each possesable object had to store stuff i would consider it unclean

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maybe its just my twisted view on software engineering

white crypt Sep 17, 2020, 6:34 PM

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you are storing it on posses anyways

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you wont win anything with that

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so instead of storing your ref on posses, do that on begin play or construct

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and it will use less nodes than what you are trying to accomplish

ruby oriole Sep 17, 2020, 6:36 PM

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i am currently working in the controller not in the pawn

white crypt Sep 17, 2020, 6:36 PM

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so on posses you could get controlled pawn, cast to your pawn and get the ref that way

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well there are plenty of different approaches as always

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so up to you which one you want to use

ruby oriole Sep 17, 2020, 6:37 PM

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i try to prevent storing it in the pawn, that was my whole idea

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but it seems like its a lot easier to just store it in the pawn

hearty moss Sep 17, 2020, 6:37 PM

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are you using multiple pawns

white crypt Sep 17, 2020, 6:37 PM

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probably, you dont need to overcomplicate stuff

hearty moss Sep 17, 2020, 6:38 PM

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why not use what i showed in my screenshot?

ruby oriole Sep 17, 2020, 6:39 PM

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because i tried to prevent exactly your solution. But it seems like i am thinking WAY to complicated so i will put a variable into the pawn and read it from the controller

white crypt Sep 17, 2020, 6:40 PM

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you still can use it

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https://prnt.sc/uj35zz

Lightshot

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Captured with Lightshot

hearty moss Sep 17, 2020, 6:40 PM

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what

white crypt Sep 17, 2020, 6:40 PM

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but do it on posses if you want to store it in your PC

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same principal as moustache said just a different event

ruby oriole Sep 17, 2020, 6:41 PM

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the event "EventOnPossess" only gets called on the server and not on the client btw

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so its not a solution i can work with 😦

hearty moss Sep 17, 2020, 6:42 PM

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oh you're doing multiplayer?

ruby oriole Sep 17, 2020, 6:42 PM

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yup

hearty moss Sep 17, 2020, 6:43 PM

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i know how that is

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you can't get away with just not casting tho

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you will have to sometimes

ruby oriole Sep 17, 2020, 6:43 PM

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i am a bit shocked that the event only gets called on the server

white crypt Sep 17, 2020, 6:43 PM

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why not make an extra event when possesing?

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which would be owning client only

hearty moss Sep 17, 2020, 6:43 PM

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remember that the server can tell clients to run events

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yeah

white crypt Sep 17, 2020, 6:44 PM

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and you would pass your spring ref through that event

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to your controller

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i dont think it even needs to be owning client, no idea why i said that 😄

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but im no expert in networking, just brainstorming

ruby oriole Sep 17, 2020, 6:45 PM

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yeah i think i will go and tinker with it for a moment. Thanks for the input you two 🙂

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i am sure i will figure out a solution!

hearty moss Sep 17, 2020, 6:46 PM

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you will 100% have to cast

ruby oriole Sep 17, 2020, 6:46 PM

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i know casting isnt the problem ...

hearty moss Sep 17, 2020, 6:47 PM

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then im confused

ruby oriole Sep 17, 2020, 6:47 PM

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the code i posted earlyer works btw, its just null because the event only gets triggerd on server side

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this is the code i came up with
@ruby oriole
this one

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oh ... it doesnt link the image again

hearty moss Sep 17, 2020, 6:48 PM

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what are you trying to avoid?

ruby oriole Sep 17, 2020, 6:48 PM

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I try to avoid to store a ref to a specific thing in the pawn

hearty moss Sep 17, 2020, 6:49 PM

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but through my screenshot you aren't storing anything on the pawn, just getting a reference to a component

ruby oriole Sep 17, 2020, 6:49 PM

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okay, i got it to work now

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oh ... please dont tell me "camera boom" is a variable that already handels what i am looking for ... ?

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i often get confused with stuff thats already there in the engine and custom build by others

hearty moss Sep 17, 2020, 6:50 PM

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camera boom is the name they put on the default spring arm

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i said that after posting the screenshot haha

ruby oriole Sep 17, 2020, 6:51 PM

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this is the code i came up with. "CameraSpringArm" the ref just needs to get replicated towards the owner

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with this code, the camera spring arm can be named anything it wants and it should work on every object that has a camera and a spring arm

white crypt Sep 17, 2020, 6:53 PM

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isnt that the same as before, but you just set the variable to be replicated?

hearty moss Sep 17, 2020, 6:54 PM

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why don't you use a custom event instead

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and call it from the pawn after getting possession

white crypt Sep 17, 2020, 6:54 PM

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ask yourself if server really needs to know about your spring arm

ruby oriole Sep 17, 2020, 6:55 PM

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yeah its the same as before ... i was quite happy with the solution, it just didnt work because of the replication problem ... i didnt knew (when i first posted it) that the event only gets called on server

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the server shouldnt know to be honest ...

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the server shouldnt know to be honest ...

hearty moss Sep 17, 2020, 6:55 PM

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you need a custom event to handle this

ruby oriole Sep 17, 2020, 6:55 PM

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i guess an event is the better solution ...

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you two are right

hearty moss Sep 17, 2020, 6:56 PM

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custom events are your best friend

ruby oriole Sep 17, 2020, 6:57 PM

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this should be all for the custom event, right ?
Im still a bit uncertain about these things ...

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white crypt Sep 17, 2020, 6:58 PM

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why not just pass the spring arm?

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then your event inside controller would look like this https://prnt.sc/uj3h52

Lightshot

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ruby oriole Sep 17, 2020, 7:00 PM

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hrm ... yeah

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right now the stuff dopesnt work anyways

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this sends a null as possessedpawn

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and i dont know why

white crypt Sep 17, 2020, 7:00 PM

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no, not here

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in the place where you have "posses"

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inside there you get player controller, cast to player controller and then call event on posses client

ruby oriole Sep 17, 2020, 7:02 PM

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But wouldnt this lead to doubling code at every point where i posses a pawn ?

white crypt Sep 17, 2020, 7:02 PM

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depends on how you have your pawn set up

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it would be best if they all originated from the same parent class

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as childs

ruby oriole Sep 17, 2020, 7:03 PM

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yeah i agree

white crypt Sep 17, 2020, 7:03 PM

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if you dont want to go that route then you would need to use an interface i assume

ruby oriole Sep 17, 2020, 7:04 PM

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can you tell me why you wouldnt use the possess event that gets called anyways ?

white crypt Sep 17, 2020, 7:04 PM

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because you said it gets called on the server

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and server doesnt really need to know any of that

ruby oriole Sep 17, 2020, 7:06 PM

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well its a UE4 Event that gets called ... i think it gets called regardless if i use it or not ?

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i dont know how the engine works there exactly

white crypt Sep 17, 2020, 7:07 PM

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im not exactly sure how unreal works in that manner, but if theres no event onpossed then it wont be called. it might be looking for it but since theres no logic attached to it, it shouldnt matter much

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maybe someone who works with cpp could answer you

ruby oriole Sep 17, 2020, 7:09 PM

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its probably not a bad thing to inform the client that the server decided to possess something new

white crypt Sep 17, 2020, 7:09 PM

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server doesnt posses

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it does have a copy of all the controllers though

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anyways i dont want to get over my head by talking about this. im not the right person for this 😄

ruby oriole Sep 17, 2020, 7:11 PM

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haha no problem

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But so far ... my scripts for the camera control works. My initial problem i came here for is fixed ^^

desert storm Sep 17, 2020, 7:23 PM

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Say I have two actor blueprints, BP-A and BP-B.
Is there a way to specify a specific component for overlap from BP-A in BP-B?

meager spade Sep 17, 2020, 7:25 PM

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If I understand you correctly you could create a component instance of the type you would like during runtime and add it to BP-A if it overlaps BP-B

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Or do you want to do something in a component when BP-A overlaps BP-B?

pastel rivet Sep 17, 2020, 7:29 PM

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This is probably not the right channel, but im struggeling hard to get focus on a html5 build. I cant hit widget buttons, but i can rotate the camera around (like orbit around an object)

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@desert storm
Collision volumes, on overlap event

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make sure collision settings are correct in both blueprints

desert storm Sep 17, 2020, 7:30 PM

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I know, but there's a problem:

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Basically I've got two collision volumes in the player's BP: one for the body, one for attacks. I currently have it set up in the player's BP that when they attack and the attack-volume overlaps with a specific object (currently just a test object), that object gets destroyed. But that's not really scale-able, I can't hook multiple objects up to that one chain, so I was hoping to move it into the BP of each individual object - but I can't figure out how to specify only the attack volume, so when I try that, if any part of the player is touching it counts as overlap.

pastel rivet Sep 17, 2020, 7:30 PM

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or if BP-A or BP-B has already collisions that can overlap

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@desert storm
Maybe use a tag check on the volumes?

desert storm Sep 17, 2020, 7:32 PM

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A tag check?

pastel rivet Sep 17, 2020, 7:36 PM

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@desert storm
Yeah you can check if actor has a tag when overlapping. Since your issue is specify only attack volumes, i would go with a tag on the volumes and then check the tags on overlap

desert storm Sep 17, 2020, 7:37 PM

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Alright, I'll see if I can figure that out.

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~~Figured it out. That helps.~~ I take that back. Doesn't seem to work the way I want it to.

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Thanks anyway.

fossil shoal Sep 17, 2020, 8:12 PM

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how to reference a skeletal mesh in a blueprint?

earnest tangle Sep 17, 2020, 8:17 PM

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isn't it just a variable of type skeletal mesh

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as in, same way as any other thing you'd reference

fossil shoal Sep 17, 2020, 8:24 PM

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im trying to make a modular character but my stupid brain decided to not google modular character

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nvm

pine trellis Sep 17, 2020, 8:34 PM

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can someone clear things up for me? I have an issue, if I spawn a weapon in using get actors of class, and also spawn an actor using spawn actor, my gun logic wont work anymore on the spawned weapon, but the weapon placed on the map it still works

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is this because I am calling the reference from all class, and not the reference from spawn actor???

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I dont get it because they are the same class

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untold anchor Sep 17, 2020, 8:43 PM

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can blueprints not set focal distance?

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nevermind, found it, screenshot for anyone else who searches the discord for the answer
Set Focal Distance of Camera = Set Post Process Settings > Make Post Process Settings > Check Focal Distance to allow access to modifying it via blueprint via the make Post Process Settings node

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desert storm Sep 17, 2020, 9:18 PM

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My apologies for the weird visual, but it was the only way I could explain this without it getting messy. I've tried a few different ways to get this working, but all of them had their own problems. I feel like there's some really simple and obvious solution I'm not aware of, and could use some help figuring out what that is.

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wary widget Sep 17, 2020, 9:21 PM

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I'm trying to bind to USelection::SelectionChangedEvent in blueprints, but I can't since that event isn't dynamic. What's the process here for exposing this? To get around this, I binded to that event in C++, and then have it broadcast to another dynamic multicast delegate that is exposed to blueprint, but this seems cumbersome.

elfin hazel Sep 17, 2020, 9:22 PM

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@pine trellis Why are you first using Get Actor to get a gun reference, then spawn a gun class?
The Get Actor of Class node searches for an instance of the specified type, and returns the first it finds. And you can never be certain -which- instance it will return. For what reason are you using this method at all?

untold anchor Sep 17, 2020, 9:25 PM

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nvm again, apparently what i was doing doesn't work, found an old tutorial that's apparently a bit too outdated to function anymore. in 4.25+ how do you set focal distance in blueprints?

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for a regular camera, not a cinecamera

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apparently you can't anymore? only with cinecamera can you change focal distance with blueprints? what the...

white crypt Sep 17, 2020, 9:50 PM

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@untold anchor works fine for me https://prnt.sc/uj5z8j

Lightshot

Screenshot

Captured with Lightshot

#

oh i was on 4.24, let me test on 4.25

#

works on that version too

true plaza Sep 17, 2020, 10:04 PM

#

I'm trying cast to BP_PickupCube from my Animation BP (to access a boolean). but I can't find the right wildcard object.

#

BP_PickupCube looks like a StaticMeshComponent. Should I cast to StaticMeshsomething?

#

📎 2020-09-17_15_11_37-u200914_-_Unreal_Editor.png

#

or maybe I should just ask, how do I get from here to here?

📎 2020-09-17_15_12_11-u200914_-_Unreal_Editor.png

keen goblet Sep 17, 2020, 10:29 PM

#

@desert storm I'd use an interface or the built-in damage system.
In either case, it's kind of a reversal of your current thinking. Currently, the Cube is asking "is this thing touching me something I care about?", which involves asking a lot of questions. An easier approach is to have your player say "I am attacking you" to anything it touches while attacking and set up actors that say "if I am attacked, I do this".
You could do that with damage, having the player call ApplyDamage and having your Cube implement OnTakeAnyDamage.

desert storm Sep 17, 2020, 10:33 PM

#

@keen goblet Thanks for the tip, I'll look into that.

have your player say "I am attacking you" to anything it touches while attacking and set up actors that say "if I am attacked, I do this".
Can I do this with a specific component? Otherwise it sounds like I'd run into the same problem, with the back or side of a player also triggering it. Kinda defeats the purpose of a directional attack.

vague lake Sep 17, 2020, 10:33 PM

#

I want my character to always face with camera ,how do I make it so?

white crypt Sep 17, 2020, 10:34 PM

#

probably with find look at rotation

keen goblet Sep 17, 2020, 10:35 PM

#

@desert storm You certainly can! In your AttackCollision.OnBeginOverlap, do
if bAttacking: ApplyDamage(OverlappedActor)

#

Or something like that. Point is that you have full control over when your player actor decides to say "I am attacking you!" to another actor
edit: Also, interfaces are a generic way to make a system where something says "I am doing a thing to you" and you can set some actors to say "when that thing is done to me, I do this". Very powerful tool to add to your coding arsenal!

vague lake Sep 17, 2020, 10:36 PM

#

I turn on yaw ans turn off orientation rotation but it doesn't work

white crypt Sep 17, 2020, 10:37 PM

#

https://prnt.sc/uj6jvz

Lightshot

Screenshot

Captured with Lightshot

vague lake Sep 17, 2020, 10:38 PM

#

Thanks bro

white crypt Sep 17, 2020, 10:38 PM

#

oh you dont need to rotate all axis

vague lake Sep 17, 2020, 10:39 PM

#

I was having problem like when equip and aim my player rotates

white crypt Sep 17, 2020, 10:39 PM

#

https://prnt.sc/uj6kp7

Lightshot

Screenshot

Captured with Lightshot

#

this will look towards your camera

#

so you will always see the front of your character

#

oh you said always face with camera

#

not to camera, mb let me send another example

vague lake Sep 17, 2020, 10:41 PM

#

Yeah like fps game

#

When u aim

#

Like that

white crypt Sep 17, 2020, 10:41 PM

#

is it for 3rd person game?

vague lake Sep 17, 2020, 10:41 PM

#

Yes

white crypt Sep 17, 2020, 10:41 PM

#

i think you only need to set yaw to true/false but let me test

vague lake Sep 17, 2020, 10:42 PM

#

already tested this .this doesn't work for me

#

I watched tutorials but didnt help

white crypt Sep 17, 2020, 10:42 PM

#

https://prnt.sc/uj6lyl

Lightshot

Screenshot

Captured with Lightshot

#

tested on a 3rd person template and works fine

vague lake Sep 17, 2020, 10:44 PM

#

Alright I will test it tomorrow gotta sleep now

untold anchor Sep 17, 2020, 10:50 PM

#

@white crypt try updating that during runtime if you wouldn't mind. with maybe a lerp and timeline or something else. My float was changing from maths (printed string to verify), was setting that float as a variable (also checked this), then using that variable as the input for the focal distance on that make post process and then to the set post process settings. I verified that the execution was going through the set post process settings properly, however, the camera's focal distance would not actually change (tested this with large values to make it obvious that it was working or not) I had also had the values figured out before hand to ensure the particular objects i needed in focus were in focus, but for w/e reason, it doesn't seem to work. I checked with a friend of mine and he said it was deprecated in 4.24 and now you have to use cinecameras to do it, and that it caused him a huge heart ache in his game when it upgraded to 4.24 as it was working before hand.

white crypt Sep 17, 2020, 10:51 PM

#

ok, give me a minute

#

📎 Desktop_2020.09.18_-_01.54.01.02_VP8.webm

#

@untold anchor

#

also works fine

untold anchor Sep 17, 2020, 10:58 PM

#

what the

#

hmmm

white crypt Sep 17, 2020, 10:59 PM

#

its done using default 3rd person template on 4.25

#

i can package and send it to you if you want, but its pretty easy to make smth like that

untold anchor Sep 17, 2020, 10:59 PM

#

yea, that's what i had thought, my set up was basically the exact same as yours just now

#

the only difference was i was setting the lerp into a variable and then using that variable as the float input for the make post process setting but

#

that shouldn't matter at all

#

so

white crypt Sep 17, 2020, 11:00 PM

#

what kind of lerp values you were using?

untold anchor Sep 17, 2020, 11:00 PM

#

no clue what went wrong in my set up

white crypt Sep 17, 2020, 11:00 PM

#

whats your min/max?

#

for alpha

#

i mean

untold anchor Sep 17, 2020, 11:00 PM

#

oh the alpha was just 0-1 from the timeline

white crypt Sep 17, 2020, 11:00 PM

#

oh okey

#

dunno then 😄

untold anchor Sep 17, 2020, 11:00 PM

#

same X_X

white crypt Sep 17, 2020, 11:01 PM

#

want me to still send it so you could look into that yourself?

untold anchor Sep 17, 2020, 11:01 PM

#

honestly, not much to send, i see your set up, nothing weird or odd there

#

i must have fucked up somewhere, and that's on 4.25.3?

white crypt Sep 17, 2020, 11:02 PM

#

it will be easier if you compare those two examples, maybe you missed one small detail somewhere

#

yup

untold anchor Sep 17, 2020, 11:02 PM

#

can you post a screenshot of your details on the make post process and your set post process?

#

that's the only two bits of info not shown in your video

white crypt Sep 17, 2020, 11:03 PM

#

set default values cant be changed

untold anchor Sep 17, 2020, 11:03 PM

#

and i'm like 99.99% certain the default follow cam on 3rd person template is just a regular camera too, not a cinecam

frail marlin Sep 17, 2020, 11:04 PM

#

Anyone will to help with some simple vector math?

#

Im 95% to the solution, there is just one minor fault in the math and i cannot figure it out.

untold anchor Sep 17, 2020, 11:04 PM

#

set default values can't be changed?

white crypt Sep 17, 2020, 11:04 PM

#

https://prnt.sc/uj6u8n

Lightshot

Screenshot

Captured with Lightshot

#

in the editor details tab i mean

#

https://prnt.sc/uj6ufc

Lightshot

Screenshot

Captured with Lightshot

#

see, its grayed out

untold anchor Sep 17, 2020, 11:05 PM

#

yea, just making sure i wasn't crazy on that one

#

so yea, just check the focal distance on the make

#

which i did

#

and nothing can be changed on the set

#

hmmm

#

i'll give it another try in a bit, interesting

#

thanks alot

white crypt Sep 17, 2020, 11:06 PM

#

np, i will dm you the project anyways since i uploaded. up to you if you want to use it or not 😄

true valve Sep 17, 2020, 11:18 PM

#

Can you set collision presets to static mesh via blueprint?

desert storm Sep 17, 2020, 11:32 PM

#

@keen goblet I take it that it's not this simple?

📎 unknown.png

haughty ember Sep 17, 2020, 11:35 PM

#

Can you set collision presets to static mesh via blueprint?
@true valve yup. https://docs.unrealengine.com/en-US/BlueprintAPI/Collision/SetCollisionProfileName/index.html

keen goblet Sep 17, 2020, 11:40 PM

#

@desert storm Granted that I'm not quite an expert, lemme try:
Maybe BaseDamage should be not zero, in case 0 damage doesn't count as "doing damage", making AnyDamage not fire. But assuming the first pic is in your player BP (and you're making IsAttacking true at the right time) and the second pic is your Cube, I think that should work. I've set up something that simple before.
For good measure, I'd also pass the player as DamageInstigator and your player's controller as DamageCauser, since that's what ApplyDamage wants to get as input

#

Might as well also do some good ole' fashioned debugging, using prints or otherwise, to make sure ApplyDamage is actually called when you think it should be

desert storm Sep 17, 2020, 11:46 PM

#

@keen goblet Looks like that did the trick, thanks so much for the help! That was the first real barrier I've run into since I've gotten back into Unreal, I was so worried I'd have to rethink everything.

Anyway, I'll look into interfaces when I get the chance, thanks for the suggestion.

proven mason Sep 18, 2020, 12:35 AM

#

I can't print out the timer when i add a timeline; check a look at this:

#

📎 unknown.png

tiny ember Sep 18, 2020, 12:37 AM

#

Hello. I'm trying to move with the button while holding it down, however, it only moves once. I want to do the same as if I were moving with the keyboard. Thanks

proven mason Sep 18, 2020, 12:37 AM

#

and here' the graph results

📎 unknown.png

tiny ember Sep 18, 2020, 12:37 AM

#

📎 unknown.png

desert storm Sep 18, 2020, 12:46 AM

#

@tiny ember Could you try using an input action, rather than On Pressed? Input action has the ability to drag out for "on pressed" and "on release".

#

You can start movement on pressed and stop movement on release.

robust cliff Sep 18, 2020, 12:47 AM

#

Anyone know how to load main menu map without a character and then when click start button open level with character?

worthy frost Sep 18, 2020, 12:49 AM

#

remove the pawn from the gamemode?

#

you normally have a MainMenuGameMode

#

which has no pawn

trim matrix Sep 18, 2020, 12:50 AM

#

Yea you would make a new level, and change the gamemode settings in that level to get rid of the charecter. Could even just use the level BP to create a widget when the level starts. This widget would have some button that would run the Open Level node to load another level.

#

The loaded levels gamemode settings would let it have a charecter in it

worthy frost Sep 18, 2020, 12:51 AM

#

exactly how ours is done

robust cliff Sep 18, 2020, 12:51 AM

#

where are these settings for each individual game mode

worthy frost Sep 18, 2020, 12:51 AM

#

Level BP opens the main menu widget

#

in the World Settings

#

when you open the map

trim matrix Sep 18, 2020, 12:52 AM

#

world settings mhm

robust cliff Sep 18, 2020, 12:52 AM

#

Ok

worthy frost Sep 18, 2020, 12:52 AM

#

if you don't see the tab, you need to show it

#

in the Window drop down at top of UE4 Editor

robust cliff Sep 18, 2020, 1:06 AM

#

Thanks but now i have another issue. I was setting up my View target with blend so i can pan from one location to another. Is there a way to pick locations in which to blend from?

#

@worthy frost

#

now it just starts from a 0,0,0 map position

#

it blends to right location just not correct starting location

#

Should i just create an empty pawn and drag it into the world?

worthy frost Sep 18, 2020, 1:24 AM

#

you don't need a pawn

#

you just use camera

#

and player controller

#

🤷

robust cliff Sep 18, 2020, 1:26 AM

#

I know but by default when i set the blend time to 10 secs. It pans to the camera but from the world position because i have the pawn set to none

#

default pawn class i mean

#

So it starts from 0,0,0

worthy frost Sep 18, 2020, 1:34 AM

#

you set it to a camera

#

in the level

#

just a normal camera?

#

like your initial view target

#

before you do the blend

#

but i have no clue what you are trying to do lol

robust cliff Sep 18, 2020, 1:49 AM

#

here i will show you

#

i have it working but would rather use a camera

#

one sec

#

there you go @worthy frost

#

@worthy frost NVM i got it

pale blade Sep 18, 2020, 2:59 AM

#

Is this safe to use in blueprints?

📎 unknown.png

#

Used to dynamically add widget components

supple dome Sep 18, 2020, 3:03 AM

#

@pale blade yea that warning is for c++ users

covert arrow Sep 18, 2020, 3:25 AM

#

is anyone awake?

#

i need some help with something

carmine thorn Sep 18, 2020, 3:30 AM

#

I might be able to help

#

What's your problem?

rough wing Sep 18, 2020, 3:48 AM

#

How can i get a spline point closest to a specific world location?

earnest tangle Sep 18, 2020, 3:55 AM

#

there is a node find location closest to something

#

something like that, that should do it

trim matrix Sep 18, 2020, 4:03 AM

#

I'm working on an ability that teleports and attacks the enemy... But the camera get's so crazy towards the end because of how fast the movement is, can anyone help me come up with a solution to this problem?

#

https://gyazo.com/4fce1e3edcd9102bbf59dd0f97e5d253

Gyazo

▶ Play video

covert arrow Sep 18, 2020, 4:06 AM

#

@carmine thorn how do you get all overlapping actors and apply damage to all overlapping actors?

trim matrix Sep 18, 2020, 4:12 AM

#

@covert arrow for each

covert arrow Sep 18, 2020, 4:14 AM

#

@trim matrix for all the actors that are overlapping box collision for example apply damage to all the actors that are overlapping that box collision

trim matrix Sep 18, 2020, 4:14 AM

#

yeah

#

connect a for each node to wherever the collision event is taking place

#

and then after the for each node apply damage damage should come next

#

@covert arrow does that make sense?

#

https://gyazo.com/635d48062ee2c0081405a5c894c64fb1

Gyazo

rough wing Sep 18, 2020, 4:52 AM

#

What does this return?

📎 unknown.png

#

The distance from origin to the input key?

#

along the line that is

#

I think ive got the concept wrong. The input key seems to be a float value after all

trim matrix Sep 18, 2020, 4:56 AM

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it returns the distance from the two

haughty egret Sep 18, 2020, 7:40 AM

#

@worthy frost Is there any way to know the world area that is visible by the camera?

weary jackal Sep 18, 2020, 7:50 AM

#

https://www.youtube.com/watch?v=6WtE3CoFMXU

YouTube

Unreal Engine

Understanding Culling Methods | Live Training | Inside Unreal

Learn how to optimize your games by setting up and using the available culling methods available in UE4! In this introductory stream, Tim Hobson will go over the high-level use of these culling methods with some practical demonstration of how visibility and occlusion culling w...

▶ Play video

haughty egret Sep 18, 2020, 8:03 AM

#

That's essentially what I want sure but that just talks about the different methods. Is there a way I can find a Frustrum without having to implement all the calculations myself?

true valve Sep 18, 2020, 8:11 AM

#

Is there anyway to unpause the game using a key?

weary jackal Sep 18, 2020, 8:21 AM

#

@true valve set pause game to false

#

you can find event bool if to work when game is paused or not

#

https://i.gyazo.com/907b49d90719fb1c2a3430d0dd50837d.png

#

https://i.gyazo.com/e1c814909689977861cf04a443ebd1d6.png

#

use this one to pause/unpause

maiden wadi Sep 18, 2020, 9:25 AM

#

@haughty egret What is your actual use case for needing to know the world area visible? Detecting if an actor is within camera view is pretty easy.

haughty egret Sep 18, 2020, 9:27 AM

#

Yea that's essentially what I want to know

#

But I've had issues with the project world to screen someone getting objects not on it

maiden wadi Sep 18, 2020, 9:36 AM

#

@haughty egret What is the usecase though? Do you need any actor at a point on the screen, do you need a list of actors that are on screen at a certain distance, or?

haughty egret Sep 18, 2020, 9:37 AM

#

I would like all actors I can see on the screen basically, ending with terrain I guess

#

It's supposed to be a first pass cut down so then I can find which actors are within a selection box

maiden wadi Sep 18, 2020, 9:37 AM

#

How often is it ran?

true valve Sep 18, 2020, 10:02 AM

#

@weary jackal thanks

fallen glade Sep 18, 2020, 10:05 AM

#

i'm trying to build a grid, does anyone know how to properly feed my vectors into a mesh selection ?

📎 unknown.png

#

📎 unknown.png

trim matrix Sep 18, 2020, 11:04 AM

#

Sounds a little advanced

#

That little 3 by 3 thing is so scary

#

Especially when the colors start switching up

frigid thicket Sep 18, 2020, 11:47 AM

#

can you make Image Widget to not showing anything when it has no image? i want to replace it when its in game, but when it has no image it shows white box and i dont want that

📎 Capture.PNG

fallen glade Sep 18, 2020, 11:47 AM

#

you can set it's visibility to invisible @frigid thicket

frigid thicket Sep 18, 2020, 11:48 AM

#

@fallen glade will it become visible again once i put image?

fallen glade Sep 18, 2020, 11:49 AM

#

no but you can make it like this: get image > is valid ? > select > true=visible false=hidden

#

and then plug that in a set visibility node

frigid thicket Sep 18, 2020, 11:49 AM

#

hmmm

#

what if it

#

okay thank you xD

tight schooner Sep 18, 2020, 12:14 PM

#

@rough wing you can round the output of that node to get the nearest spline point... I think the float output is like a fractional "key", so you can round, truncate, modulo, or do whatever desired math on it.

stiff totem Sep 18, 2020, 12:54 PM

#

How do I change the variable values in an instance of an actor

tight schooner Sep 18, 2020, 1:27 PM

#

@stiff totem make the variable public (instance editable). Either check the box in the variable settings or click on the eyeball lol

stiff totem Sep 18, 2020, 1:40 PM

#

How do I change them then? I can only seem to change the default value

tight schooner Sep 18, 2020, 1:41 PM

#

@stiff totem place a blueprint in your level

#

And in the details panel you can change the value

#

That's what it means to make a variable instance-editable

#

You change it in the level editor and not the blueprint editor

#

The variable gets "exposed" to the level editor

frigid thicket Sep 18, 2020, 4:13 PM

#

how to add more color to lerp? or should i use something else to transition more than 2 colors?

📎 Capture1.PNG

gray kite Sep 18, 2020, 5:06 PM

#

Are there any nodes where I could figure our if a float is a multiple of 10 for example?

#

I want every number that is a multiple of 10 to fire an event

#

so 10 fires, 20 fires, 30 fires etc

still bramble Sep 18, 2020, 5:15 PM

#

er sorry to interrupt but im having a super simple problem thats causing me to go insane

#

📎 unknown.png

#

all i want is to click on a box and it to run this dialog bp that i replicated from a youtube tutorial

#

but i cant for the life of me click or have any input to actually run it

#

i know it works since i did a print string debugging for the script itself

#

but man it just wont take any key or click

trim matrix Sep 18, 2020, 5:17 PM

#

are click events enabled on your player controller?

#

theres a flag in the settings of a player controller that determines if click events can even happen

#

Its off by default

still bramble Sep 18, 2020, 5:17 PM

#

📎 unknown.png

#

this should have done it

#

right?

trim matrix Sep 18, 2020, 5:18 PM

#

oh?

still bramble Sep 18, 2020, 5:18 PM

#

this is just for a static camera

#

but the player controller is right there

#

wait...

trim matrix Sep 18, 2020, 5:18 PM

#

I mean on the player controller BP itself

#

There is a setting you have to enable

still bramble Sep 18, 2020, 5:19 PM

#

one moment ill look for it

trim matrix Sep 18, 2020, 5:19 PM

#

it should be in the class defults

frigid thicket Sep 18, 2020, 5:21 PM

#

@trim matrix thank you

still bramble Sep 18, 2020, 5:31 PM

#

ok so i finally activated in game clicks etc still no response?

trim matrix Sep 18, 2020, 5:32 PM

#

What kind of object are you trying to click?

still bramble Sep 18, 2020, 5:33 PM

#

just a cube

flat raft Sep 18, 2020, 5:33 PM

#

Does the Construction Script get called in game ?

still bramble Sep 18, 2020, 5:33 PM

#

yes

trim matrix Sep 18, 2020, 5:34 PM

#

does your cube block visability collision?

still bramble Sep 18, 2020, 5:34 PM

#

📎 unknown.png

#

its a static situation

#

so i was wondering if collisions was an issue

#

should be ok with a simple mouse over?

trim matrix Sep 18, 2020, 5:34 PM

#

check its collisions yea

still bramble Sep 18, 2020, 5:35 PM

#

but in the puzzle bp example for unreal there is no massive collission like that?

#

other than slightly in the z axis

flat raft Sep 18, 2020, 5:35 PM

#

Are you sure, Sally? I have a breakpoint in the construction script and it doesn't Break.

trim matrix Sep 18, 2020, 5:35 PM

#

Construction script only gets called in game when an object is spawned

#

Im pretty sure

still bramble Sep 18, 2020, 5:36 PM

#

hm....

trim matrix Sep 18, 2020, 5:36 PM

#

If its already in the level

#

it wont get called

still bramble Sep 18, 2020, 5:36 PM

#

yeah ur right it does get called once per object

#

however i was able to get it to work like this at one point but it was broken in another way so i had to remove it

#

so i know its possible to have a key interaction?

#

not click though

#

at the time

flat raft Sep 18, 2020, 5:37 PM

#

okay, cool. Thanks!

#

threw me off when the breakpoints didn't get called

#

lol

still bramble Sep 18, 2020, 5:38 PM

#

oh kek

#

but so ur saying that if the object is in the scene already

#

and dosent have collissions that you can actively collide then it cant be interacted?

trim matrix Sep 18, 2020, 5:39 PM

#

oh wait

still bramble Sep 18, 2020, 5:39 PM

#

er click on even?

trim matrix Sep 18, 2020, 5:39 PM

#

nonononononon

still bramble Sep 18, 2020, 5:39 PM

#

ohoh

trim matrix Sep 18, 2020, 5:39 PM

#

I was saying if an object is in the scene construction script wont get called for it

#

That was for the other qeustion

still bramble Sep 18, 2020, 5:39 PM

#

oh! sorry sorry

trim matrix Sep 18, 2020, 5:39 PM

#

For you sally

flat raft Sep 18, 2020, 5:39 PM

#

lol sorry

trim matrix Sep 18, 2020, 5:39 PM

#

You enabled click events right?

#

so?

#

Couple things i can think of off the top of my head

still bramble Sep 18, 2020, 5:40 PM

#

yes no change

trim matrix Sep 18, 2020, 5:40 PM

#

Is that player controller actualy the one being used?

#

Make sure of that

#

first and foremost xD

still bramble Sep 18, 2020, 5:40 PM

#

yes because it works with ui...unless thats different

trim matrix Sep 18, 2020, 5:40 PM

#

ok well if it is the one being used alright

still bramble Sep 18, 2020, 5:41 PM

#

yes

trim matrix Sep 18, 2020, 5:41 PM

#

and so your trying to click a box collison or static mesh cube in confused>?

still bramble Sep 18, 2020, 5:41 PM

#

parallelling with the puzzle bp example project i belive its the box collison

trim matrix Sep 18, 2020, 5:41 PM

#

ah then ok!

#

open the BP that has the box collision inside

#

goto viewport

#

click on the box colision

#

and in the details

#

📎 unknown.png

#

this is what you are going to want to be changing

#

Click on the dropdown and set it to custom

#

And make sure Visability collison is set to Block

📎 unknown.png

#

by default the Trace Channel responsible for detecting Mouse Events is visability

#

And a mouse event is only detected when that Trace Channels collision is set to block.

#

If its set overlap or ignore, the mouse event will either overlap or ignore the object. Either which wont fire the mouse event.

still bramble Sep 18, 2020, 5:49 PM

#

I CAN HIGHLIGHT NOW THANK U, clicking im still working on but thank u for the light at the end of the tunnel

#

also is it an issue that interaction dosent exist

trim matrix Sep 18, 2020, 5:49 PM

#

oh nono thats a custom channel i made

still bramble Sep 18, 2020, 5:49 PM

#

ok thats what i thought

trim matrix Sep 18, 2020, 5:49 PM

#

It shouldent exist for you dw

still bramble Sep 18, 2020, 5:49 PM

#

for some reason clicking is still a problem but at least the highlight works flawlessly

#

T>T thank u so much

tight schooner Sep 18, 2020, 5:50 PM

#

@trim matrix functions can't be latent; they have to provide immediate execution and/or output

trim matrix Sep 18, 2020, 5:50 PM

#

oh well np

#

gl getting the clicking to fix

#

The only thing i can think of @still bramble, Is that if you had only set the mouse over events flag to true in you player controller. Theres another flag called enable click events you have to set for click events to work.

wind atlas Sep 18, 2020, 6:08 PM

#

Hi everyone, I've set up an exposed parameter on a blueprint which is controlling dynamic material instance parameter (which is then sent into a material function), editing it while in play mode doesn't seem to do anything, however if I eject from the camera, editing the parameter works correctly, is there something simple I could have missed? something to do with play mode?

haughty ember Sep 18, 2020, 6:32 PM

#

however if I eject from the camera, editing the parameter works correctly
Edit how?

#

on a blueprint which is controlling dynamic material instance parameter
Are you using the constructor to do that perhaps?
If so, in the editor the constructor will run when you change most (if not all) properties.
However in game mode, the constructor ~~will only run once~~ won't run at all if the object is already created in the editor.

pine trellis Sep 18, 2020, 6:45 PM

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i am calling a reference to gunbase in my blueprint and for some reason I can only use the gun to fire from the first gunbase I place on the map, all the other ones dont work.

📎 unknown.png

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is there another way I should call the gunbase so I can use all of them and not just the first one I place on the map?

haughty ember Sep 18, 2020, 6:46 PM

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@pine trellis Use Get All Actors of Class and foreach ?

pine trellis Sep 18, 2020, 6:47 PM

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get all actors and for each loop? ok let me try

haughty ember Sep 18, 2020, 6:47 PM

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@pine trellis I'm really not sure why you have a reference there though or when you are shooting it. It might not be relevant

cobalt slate Sep 18, 2020, 6:49 PM

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hey everyone! quick inheritance question. I have a parent blueprint that moves around inside of the blueprint. I created a child of that parent and although i can see the mesh, it doesn't update when the parent updates. I know for things like character classes, this is the way it should be. But for a simple actor BP, i need the child to update every time the parent updates. Is there an option for that?

haughty ember Sep 18, 2020, 6:50 PM

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are you overriding the Tick event? did you also remember to call the base Tick event then?

pine trellis Sep 18, 2020, 6:50 PM

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well because when I press the fire button it calls a reference to fire gun-stop firing when its not pressed from the gunbase

📎 unknown.png

haughty ember Sep 18, 2020, 6:51 PM

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@pine trellis Too small I can't actually read it. but if you're using a reference to choose which gun to fire from, and you're only setting the gun at the beginning of the game - what do you expect? ..

pine trellis Sep 18, 2020, 6:57 PM

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whats a good way to fix it?

true plaza Sep 18, 2020, 6:59 PM

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📎 2020-09-17_15_11_37-u200914_-_Unreal_Editor.png

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how can I get from here to here?

📎 2020-09-17_15_12_11-u200914_-_Unreal_Editor.png

haughty ember Sep 18, 2020, 7:00 PM

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whats a good way to fix it?
@pine trellis Fix what? it's doing exactly what you told it to. What do you want to happen exactly?

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@true plaza the 2nd one is the animation blueprint. In it you can call Get Pawn Owner, cast it to your blueprint, and use it.

pine trellis Sep 18, 2020, 7:01 PM

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well I need to spawn different weapons on the map, but right now I can only fire 1 weapon the first one I put on the map, so maybe I though I was calling reference wrong but they are all still the gun bases @haughty ember

haughty ember Sep 18, 2020, 7:03 PM

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you're missing more detail - you're forgetting I have no idea what your game is like.
I barely even knows what spawning multiple weapons means. They could be multiple firearms in inventory, multiple firearms located around the world..
How are you even switching them? If you don't know what you want, you'll need to describe more for others to understand you.

wind atlas Sep 18, 2020, 7:03 PM

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@haughty ember I mean editing an exposed blueprint paramater, I'm not sure what you mean about using "the constructor", whats that?

haughty ember Sep 18, 2020, 7:03 PM

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@wind atlas ConstructionScript. How are you updating the dynamic material instance parameter then? and when?

pine trellis Sep 18, 2020, 7:05 PM

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@haughty ember its just putting the gun on the map, like from the browser, if I put more then 1 gun in, from the browser onto the map, I cant fire the other guns

wind atlas Sep 18, 2020, 7:07 PM

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@haughty ember ah I see! yes the dynamic material instances ae created in the construction script

haughty ember Sep 18, 2020, 7:07 PM

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@wind atlas Created is fine. Updates is an issue

wind atlas Sep 18, 2020, 7:07 PM

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damn..

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oh wait I see!

haughty ember Sep 18, 2020, 7:07 PM

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@pine trellis "like from the browser" what?!
And like I said - you need more. How do you switch? what does firing even mean? ...

wind atlas Sep 18, 2020, 7:08 PM

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so I can call the "set parameter value node in the actual blueprint, not in the construction script

haughty ember Sep 18, 2020, 7:08 PM

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the best way would be to create a function. Call that function in both the construction script and the Tick event.
That way it will be updated when you change it in the editor and in the game.

wind atlas Sep 18, 2020, 7:09 PM

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@haughty ember thanks a lot!

haughty ember Sep 18, 2020, 7:09 PM

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np, hf 🙂

pine trellis Sep 18, 2020, 7:09 PM

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this is how I fire my gunbase

📎 unknown.png

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this is the reference to my gun base

📎 unknown.png

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why is only 1 gun working, the first one on the map and not the others? is there another node I need?

true plaza Sep 18, 2020, 7:12 PM

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@haughty ember having a multi-day saga trying to reference the BP_PickupCube. when I just tried TryGetPawnOwner, I can't set the target to BP_PickupCube

haughty ember Sep 18, 2020, 7:12 PM

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when I just tried TryGetPawnOwner, I can't set the target to BP_PickupCube
What does that mean?

true plaza Sep 18, 2020, 7:15 PM

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@true plaza the 2nd one is the animation blueprint. In it you can call Get Pawn Owner, cast it to your blueprint, and use it.
@haughty ember so I'm in the AnimBP Event Graph. I need to reference BP_PickupCube to get the variable right?

haughty ember Sep 18, 2020, 7:15 PM

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no.

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📎 unknown.png

true plaza Sep 18, 2020, 7:17 PM

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oh, I use that on my BP_PickupCube?

haughty ember Sep 18, 2020, 7:18 PM

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not "on". cast the result to BP_PickupCube, then use it

true plaza Sep 18, 2020, 7:22 PM

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yes, I'm really confused how to cast to BP_PickupCube

haughty ember Sep 18, 2020, 7:22 PM

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https://docs.unrealengine.com/en-US/Engine/Blueprints/UserGuide/CastNodes/index.html

Casting in Blueprints

Examples of different Casting Nodes and usage cases.

true plaza Sep 18, 2020, 7:23 PM

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📎 2020-09-18_12_23_00-u200914_-_Unreal_Editor.png

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thats my AnimBP Event Graph

atomic salmon Sep 18, 2020, 7:27 PM

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@true plaza is your pawn actually a BP_PickupCube?

simple crow Sep 18, 2020, 7:28 PM

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Hey I need some help with my system of adding doors to rooms in my dungeon crawler Ill post the images in a sec, but the only thing ive found from testing is they all say they have a neighbor on every single side when they don't. But then also its not adding a door to everyside

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📎 3.PNG

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📎 1.PNG

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📎 2.PNG

true plaza Sep 18, 2020, 7:28 PM

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@atomic salmon the cube/staticmesh that holds the boolean uses BP_PickupCube

atomic salmon Sep 18, 2020, 7:29 PM

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@true plaza Try Get Pawn Owner, as the name says, returns a Pawn

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Unless BP_PickupCube is derived from Pawn, you cannot cast it like that

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You probably intend to get a reference to BP_PickupCube through the Pawn, but then you need to get it from a reference variable within the Pawn

true plaza Sep 18, 2020, 7:31 PM

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is it possible to cast to a StaticMeshComponent?

atomic salmon Sep 18, 2020, 7:31 PM

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@true plaza Casting only works among classes that are one derived from the other

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Is your BP_PickupCube something your Pawn has picked up?

true plaza Sep 18, 2020, 7:33 PM

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yes

atomic salmon Sep 18, 2020, 7:33 PM

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Ok. When your Pawn picks that up, do you attach it to your Pawn?

true plaza Sep 18, 2020, 7:34 PM

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yes via GetRootComponent

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and Target->self

atomic salmon Sep 18, 2020, 7:34 PM

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ok, and then you do an AttachToComponent I guess

true plaza Sep 18, 2020, 7:35 PM

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yes, and also DetachFromActor

atomic salmon Sep 18, 2020, 7:35 PM

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You want to create within your Pawn a new variable which is a reference to a BP_PickupCube object

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When you attach the BP_PickupCube to your Pawn, you set that variable to be a reference to the BP_PickupCube you just picked up

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Let's call that variable AttachedCube

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Now, you do a Try Get Pawn Owner from the AnimBP, cast it to your pawn class and then you can access AttachedCube

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With it you can do what you need on the attached cube

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This may sound complicated but it is actually easy once you understand it

true plaza Sep 18, 2020, 7:40 PM

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OK, I'm using the VR template, and I just found the Attached Actor variable in the MotionControllerPawn, so I suppose I can reference that in my AnimBp

atomic salmon Sep 18, 2020, 7:41 PM

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That is correct

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Just make sure you check that is valid

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Before attempting to do anything with it

dusk flame Sep 18, 2020, 7:42 PM

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Hi! Is there some way to view all level blueprints?

A bit weird question.. but I'm having issues where in-editor scalability settings are resetting, and I found on the forums to check for Level Blueprints that are setting the values.

Its an unfamiliar project though, so I dont know where to start.

true plaza Sep 18, 2020, 7:42 PM

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thank you, I shall dive back in @atomic salmon

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@haughty ember I also appreciate your input

dusk flame Sep 18, 2020, 7:43 PM

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You have a level blueprint set up to change the quality of your project

Trying to susse out where this might be happening in the project I'm working on.

atomic salmon Sep 18, 2020, 7:45 PM

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@dusk flame assuming this is the case and they are not set in any ini file, I would search in Blueprints for Execute Console Command

dusk flame Sep 18, 2020, 7:45 PM

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Hmm. Is this the sort of thing that would be set per-map or per-level?

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Or is there some global kind of thing? I guess the global thing IS the .ini files.

atomic salmon Sep 18, 2020, 7:48 PM

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@dusk flame look into the starting level first

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But you can do a search through all the project blueprints

dusk flame Sep 18, 2020, 7:49 PM

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📎 unknown.png

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So search in the Game Default Map for anything suspicious?

atomic salmon Sep 18, 2020, 7:52 PM

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@dusk flame Or do CTRL+F and search through all blueprints at once

dusk flame Sep 18, 2020, 7:53 PM

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Hmm. Is there some hierarchy, where LevelBlueprints for parent levels can effect child levels?

atomic salmon Sep 18, 2020, 7:54 PM

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sub-levels?

dusk flame Sep 18, 2020, 7:55 PM

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Hmm. Well its most likely not a problem in the bluepints, since it seems consistant across all maps.

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Not just some specific levels.

atomic salmon Sep 18, 2020, 7:55 PM

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yes, the persistent level is influencing them if this is what you mean

dusk flame Sep 18, 2020, 7:56 PM

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Is the Game Default Map the persistant level?

atomic salmon Sep 18, 2020, 7:56 PM

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Search also for this Set Overall Scalability Level

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The concept of Persistent Level applies only if you have sub-levels and use level streaming

dusk flame Sep 18, 2020, 7:57 PM

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ok! I will need to do some poking to see what the architecture of the levels is in this project.

I did notice that Execute Console Command was used a lot, but only at low-level blueprints.

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Nothing top level that would apply everywhere (that I can tell)

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Its weird that it doesn't apply to everything. For example the Post Processing is stuck at low, but I can set anti-aliasing to anything I want.

atomic salmon Sep 18, 2020, 8:00 PM

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If it affects all the levels it must be somewhere up high in the hierarchy. Search also for the node called Set Overall Scalability Level or just for "Scalability"

dusk flame Sep 18, 2020, 8:01 PM

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Scalability doesn't show up -even when searching across all blueprints at once.

atomic salmon Sep 18, 2020, 8:01 PM

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I may actually be in an ini file

dusk flame Sep 18, 2020, 8:02 PM

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Do you reccomend using a plain-text editor to poke at the ini, or are the menus good?

atomic salmon Sep 18, 2020, 8:03 PM

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Check under Config

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The menus only affect the editor

dusk flame Sep 18, 2020, 8:03 PM

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DefaultGraphicsPerformance=Scalable

This looks... right?

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I opened the entire config section in VSCode for easy global searching.

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Not 100% sure what I'm looking for, but scalability doesn't show up 🤔

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Ah!

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sg.PostProcessQuality=0

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So this would set postProcess to 0, I understand that.

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Do you know the relationship between the .ini files and the actual scalability window in-editor?

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I want to enable in-editor changing, without screwing up the actual project settings.

atomic salmon Sep 18, 2020, 8:06 PM

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Yep that disables post processing

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You can play as much as you like with the editor scalability settings

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It is not going to affect the final build

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For that you can let the engine decide the best settings or force them through ini file

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https://docs.unrealengine.com/en-US/Engine/Performance/Scalability/ScalabilityReference/index.html

Scalability Reference

Scalability options, properties, and console variables.

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Or you can force them in code of course

dusk flame Sep 18, 2020, 8:08 PM

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ok! So when I changed the .ini file, I got it to switch from PostProcessing being locked at the lowest, to being locked at the highest... progress!!

But its still fundamentally "locked". I can't use the in-editor GUI to temporarily change it, since it gets forced back as soon as I close the menu.

gritty elm Sep 18, 2020, 8:09 PM

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need help

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i want to check if a bool variable is true in all actors

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or false

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?

atomic salmon Sep 18, 2020, 8:10 PM

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@dusk flame even pressing Auto? Or Epic?

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It goes back to what?

dusk flame Sep 18, 2020, 8:10 PM

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@atomic salmon its sticky to whatever is set in the .ini files.

atomic salmon Sep 18, 2020, 8:10 PM

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@gritty elm literally all actors or just actors of a given class?

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@dusk flame you should be able to override those in the editor though

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Strange

dusk flame Sep 18, 2020, 8:12 PM

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📎 postproc.gif

gritty elm Sep 18, 2020, 8:12 PM

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@atomic salmon like get all actors of class

dusk flame Sep 18, 2020, 8:12 PM

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A bit hard to understand in gif form, but you can see it jumps back and won't let me set it.

atomic salmon Sep 18, 2020, 8:13 PM

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because sg.PostProcessQuality actually affects a number of settings

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check in the doc I linked above

gritty elm Sep 18, 2020, 8:14 PM

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@atomic salmon any solution?

dusk flame Sep 18, 2020, 8:14 PM

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Yeah I will read that doc now 👍

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Thanks for all your help

atomic salmon Sep 18, 2020, 8:14 PM

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@gritty elm yes, what you mentioned. Literally do a Get All Actors of Class and loop through them to check the variable in each. Don't do this On Tick though, it is quite expensive.

gritty elm Sep 18, 2020, 8:16 PM

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how to check if bool var in all actors is true

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for each loop return true and false at same time, this is what is not want

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?

atomic salmon Sep 18, 2020, 8:20 PM

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@gritty elm so you want to check that the same variable is true in all actors?

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Just start with a running bool variable set to TRUE

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Then do a AND with the value of the variable from each actor

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if at the end it is still TRUE it means all actors had it set to true

gritty elm Sep 18, 2020, 8:21 PM

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can you please give example of bluprint

atomic salmon Sep 18, 2020, 8:22 PM

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not right now, editor is busy

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Start with a Get All Actors of Class

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then a For Each Loop

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Create a new boolean variable called GlobalAnd and set it to True by default

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In the Loop exit of the For Each Loop, get the boolean variable out of your actor. Let's call it ActorAnd. With it do GlobalAnd = GlobalAnd AND ActorAnd.

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Try and post the screenshot here, I will correct it for you if needed

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@simple crow sorry man skipped your question

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Do you still need help?

simple crow Sep 18, 2020, 8:25 PM

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nah

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I am really friken dumb

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and maybe blind

atomic salmon Sep 18, 2020, 8:26 PM

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hahaha

simple crow Sep 18, 2020, 8:26 PM

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I had a refernce to the wrong cube

atomic salmon Sep 18, 2020, 8:26 PM

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too many hours spent dragging lines between nodes

simple crow Sep 18, 2020, 8:26 PM

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yep 😉

atomic salmon Sep 18, 2020, 8:26 PM

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glad you fixed it

simple crow Sep 18, 2020, 8:26 PM

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now im just modelling stuff

gritty elm Sep 18, 2020, 8:31 PM

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@atomic salmon

📎 Screenshot_234.png

atomic salmon Sep 18, 2020, 8:32 PM

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What is the name of your bool variable within all actors?

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@gritty elm

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Is it New Var 0?

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Did you create the GlobalAnd variable to keep the running total?

gritty elm Sep 18, 2020, 8:34 PM

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yes both vars are different

atomic salmon Sep 18, 2020, 8:35 PM

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ok that makes it very difficult for me to tell you what you should do with what

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because they are named the same

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anyway, out of the Loop Body you do Global New Var 0 = Global New Var 0 AND New Var 0

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Then out of Completed you check if Global New Var 0 is true or false

gritty elm Sep 18, 2020, 8:36 PM

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it always false

atomic salmon Sep 18, 2020, 8:38 PM

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did you set Global New Var 0 to True as starting value?

ruby oriole Sep 18, 2020, 8:58 PM

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there is no way to ask an array if it has "item of type" or ?

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okay nvm, i guess i will solve it with a dictionary since the types are unique anyways

timid forge Sep 18, 2020, 9:16 PM

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Is there a good way with perforce to merge blueprint files?

wintry maple Sep 18, 2020, 10:21 PM

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Hi all,
A few questions in this one.
So I have been working on a set of custom inputs for the Virtual Camera Player Controller to control things like the Current Focus Distance using a Gamepad instead of the Touch Interface.
I spent a long time trying to get the X Axis Input for the Left thumbstick to work with no success but did manage to get Left Thumbstick Up and Down to work to increase and decrease the Current Focus Distance.
Issue is as I am using Up and Down instead of the X Axis I don't have the built in Dead Zone, Sensitivity and Exponent.
At the moment the input scales the value up and down but I need to add variation in the input for more detailed control and dampening to the value when the axis input is released.
This is what I currently have so what would I need to add to get the desired effect?
Also any idea why the Input X Axis wouldn't work?
Currently using an Xbox 360 controller.

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📎 VCam_BP-2.jpg

tight schooner Sep 18, 2020, 10:27 PM

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@wintry maple I'm no expert at input mappings but... is it possible to split one joy axis into two? I'm not sure what's going on there.

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The way I use stick mappings is one axis (e.g. up/down) goes from -1 to +1, with 0 being center

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If you're not sure about your setup, you should try using a Print node to get the live outputs of those axes. I suspect there's something strange going on.

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Deadzones can be configured in the project settings --> Input --> Bindings section --> click the thingy at the bottom of the section to reveal advanced parameters

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If you want smoothened response, you can try using one of the FInterpTo nodes -- put it in between your math and Set Current Focus Distance

wintry maple Sep 18, 2020, 10:33 PM

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So to test the controller axis input just chuck the input into a Print Text node to see if it is getting a value?

tight schooner Sep 18, 2020, 10:34 PM

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yeah. Remember to uncheck "print to log" though.

wintry maple Sep 18, 2020, 10:34 PM

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Ok cheers. That should help determine if its working or not.

tight schooner Sep 18, 2020, 10:37 PM

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@timid forge I think BPs can't be merged or diff-ed, though I never looked into it deeply. You can ask #source-control though.

wintry maple Sep 18, 2020, 10:37 PM

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With a "FInterp To" Current would be the raw input value from the controller, Target would be the Max desired value? And Delta Time and Interp Speed control how you get to that number?

tight schooner Sep 18, 2020, 10:38 PM

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I think current would be GetCurrentFocusDistance (the unmodified value), Target would be the result of your math

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for Delta Time, use the node World Delta Seconds

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and interp speed is how fast you want the smoothing to be

wintry maple Sep 18, 2020, 10:40 PM

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Amazing! :) thanks for the help @tight schooner

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Oh one last thing. Would I be correct that this would add a smooth transition to the release of the controller?
How would I then vary the value depending how far the axis is push in a direction?
I imagine it would have to do with an Exponent value?

tight schooner Sep 18, 2020, 10:45 PM

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I'm not clear on what you have in mind

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interpolating the old value with the "new" one makes the control a little laggy, which is useful if you don't want the response to look too "raw"

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If you have a 0-1 value, you can use a Power node to do interesting nonlinear things, though again I'm not sure what you have in mind

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but it is an easy way to apply some sort of curve

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FInterpToConstant is an alternative that'll change the value in a more regular way, like an old autofocus lens that has a slow focus motor -- the number changes at a constant speed toward the "target"

wintry maple Sep 18, 2020, 10:50 PM

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Sorry, so at the moment the value will increase based on the Scale of the input Value. Say if I were to move the stick half up it would increase the value at the scale of 1.0 but if the stick was moved full up it would increase by say 10.0

tight schooner Sep 18, 2020, 10:51 PM

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so you want math that'll take an input from 0-1

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and produce an output that goes from 0-10, with 0.5 (input) mapping to 1.0 (output)

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dot dot dot question mark

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lol

wintry maple Sep 18, 2020, 10:52 PM

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Haahha

tight schooner Sep 18, 2020, 10:53 PM

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I think you'd need a Power node with a number above 1 as the exponent to give the 0-1 input some downward curve, then you multiply the result by 10

wintry maple Sep 18, 2020, 10:54 PM

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The issue I have with how if works at the moment is it will increase as a constant value regardless of how much the joystick is moved. To be able to get more detailed focus I need to be able to vary the focus speed based on how much input I give it.

tight schooner Sep 18, 2020, 10:55 PM

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so you don't want a direct stick value = focus value mapping

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but instead you want to change the focus value up or down with the stick?

wintry maple Sep 18, 2020, 10:55 PM

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Yep

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So with my current set up I take the current focus distance and increase or decrease the value depending on if the joystick goes up or down.

tight schooner Sep 18, 2020, 10:58 PM

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right click on the graph, add a "Math Expression" node, and then paste the following in:

#

Clamp((OldFocusValue + (Axis * Frametime * ChangePerSecond)), MinimumFocus, MaximumFocus)

wintry maple Sep 18, 2020, 10:59 PM

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I will soon as I get home hahah

tight schooner Sep 18, 2020, 11:00 PM

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for Old Focus Value, plug in the current focus value. Axis is axis. For Frametime, use World Delta Seconds. ChangePerSecond is how fast you want the number to change. Minimum and maximum focus are whatever limits you want to set.

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Sorry for doing it that way, but it's just a way to communicate a messy node graph through discord, lol

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I'm a heavy abuser of math expression nodes

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Once you've made it, you can double click on the Math Expression node to see the graph inside, or right click & expand it to math nodes.

wintry maple Sep 18, 2020, 11:04 PM

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Amazing! Thanks so much mate :) I'll let you know how I go.

exotic jetty Sep 18, 2020, 11:44 PM

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Does anyone have a good system of stamina regen?
I want there to be a delay after stamina was last used and start regening after stamina wasnt used for a set time, this means it would have to reset the delay if the character jumped, etc

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im kinda new

rough wing Sep 18, 2020, 11:45 PM

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Just out of my head rn you can make the stamina go below 0 and continue regenerating without delay

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The more you move the more time its gonna take to go above 0,

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Of course you'll have to put a limit for that or the player can move and move and never get back above 0

exotic jetty Sep 18, 2020, 11:46 PM

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its a combat game and stamina shouldnt regen constantly

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i think thats what you mean?

rough wing Sep 18, 2020, 11:46 PM

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Yea

exotic jetty Sep 18, 2020, 11:47 PM

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i want to force the player to pause fighting to regen

tight schooner Sep 18, 2020, 11:47 PM

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Another approach to doing delays is with a boolean variable, call it StaminaRegen or something. Then make a function called StartRegen. And then whenever you want to stop regen, set the variable to false, and then use the node Set Timer by Function Name

exotic jetty Sep 18, 2020, 11:47 PM

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head just went boom

tight schooner Sep 18, 2020, 11:48 PM

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and then whatever system you have for regenerating stamina, it can check if that variable is true

exotic jetty Sep 18, 2020, 11:48 PM

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ill try to decode this elaborate message

tight schooner Sep 18, 2020, 11:48 PM

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all the StartRegen function does is set it back to true

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any time a function timer is set, it resets the time. So if you do a bunch of stamina-using actions in a row

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if your timer is long enough, the StaminaRegen variable will stay false throughout the combo

exotic jetty Sep 18, 2020, 11:50 PM

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i will see if that works out

rough wing Sep 18, 2020, 11:50 PM

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Do you not already have a timer set?

exotic jetty Sep 18, 2020, 11:52 PM

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eh not really
I thought it would be a good idea to use 2 floats and use a lerp alpha so thats how it calculated the cooldown

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like i said, im new

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it was a terrible experience to make

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jesus

tight schooner Sep 18, 2020, 11:55 PM

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Timers can also be used for repeating events if you tick the loop box, so you can also use it to do the stamina regen function/event, like something that runs 10 times a second or w/e

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The only drawback of timers is they only work on functions/events that don't have any data inputs

exotic jetty Sep 18, 2020, 11:56 PM

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Do you have an idea how i can limit the player from using more stamina than he has? so it wont go into the negatives

tight schooner Sep 18, 2020, 11:56 PM

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In your math that sets the new stamina value, you can use a Max node with one of the inputs set to "0" -- the node will always select the larger value

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or if you want to clamp in both directions, use a Clamp Float node

exotic jetty Sep 18, 2020, 11:57 PM

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so this will restrict jumping if there is insufficient stamina?

tight schooner Sep 18, 2020, 11:58 PM

#

oic, I thought you meant preventing the stamina number from going negative

exotic jetty Sep 18, 2020, 11:58 PM

#

both would be good

tight schooner Sep 18, 2020, 11:58 PM

#

You'd have to do a check before executing the action, like...
stamina I want to use < stamina I actually have

#

(use a "<" node or w/e)

tender magnet Sep 18, 2020, 11:59 PM

#

I have a event point damage that is being triggered but when I debug the component it's not receiving any of the data from the apply point damage any ideas?

tight schooner Sep 18, 2020, 11:59 PM

#

@exotic jetty and feed the result into a Branch node, and branch the logic off of that

exotic jetty Sep 19, 2020, 12:00 AM

#

ok thanks, i will try over the next few hours to do this

#

im gonna spend more time on this than i thought

tight schooner Sep 19, 2020, 12:02 AM

#

the gamedev story

earnest tangle Sep 19, 2020, 12:10 AM

#

@tender magnet is your base damage value higher than 0?

frozen copper Sep 19, 2020, 12:19 AM

#

I have a lot of cast to my maincharacter, is there a way to get a reference to it like maybe through an interface without so many cast?

tight schooner Sep 19, 2020, 12:21 AM

#

if it implements a BP Interface, yeah, you can GetPlayerPawn and send interface messages to it

#

or if it has a custom parent class, you can cast to the parent class and use that as an interface

earnest tangle Sep 19, 2020, 12:33 AM

#

@frozen copper save it to a variable of the casted type

frozen copper Sep 19, 2020, 12:35 AM

#

@earnest tangle Could you possible show it, guess im more visual

earnest tangle Sep 19, 2020, 12:35 AM

#

Begin Play -> Cast To MyThing -> Set variable

tight schooner Sep 19, 2020, 12:35 AM

#

The simplest way to cut down casting. Interfaces are if you want to decrease dependencies (or otherwise deal with things in a "generic" way)

earnest tangle Sep 19, 2020, 12:35 AM

#

so you'd have a variable of type MyThing

#

and assign the cast result to it

tight schooner Sep 19, 2020, 12:35 AM

#

you can right click on the data output of a node and "save to new variable"

daring cradle Sep 19, 2020, 12:36 AM

#

I have a super basic question

I want a character to jump 10 times, and each time the console prints “your character has jumped X amount of times”, X being Times Jumped. I tried using a For loop but the loop executed all 10 times before the character could jump again. So...the logic makes sense but it doesn’t work for the jump function. Is there a way for the character to complete the jump, THEN have it loop again? Sorry for interrupting

zenith iris Sep 19, 2020, 12:36 AM

#

Does anyone knows an way to fix this? It started out of nowhere and I can't seem to find a way to fix (textures of wall and light)

📎 unknown.png

tight schooner Sep 19, 2020, 12:36 AM

#

@zenith iris try #graphics ?

earnest tangle Sep 19, 2020, 12:37 AM

#

@daring cradle you would have to use some method of detecting when the jump has finished before executing the next jump

#

there might be a is grounded or something on a character movement component, don't remember off the top of my head

zenith iris Sep 19, 2020, 12:37 AM

#

@tight schooner thank you, sorry

frozen copper Sep 19, 2020, 12:39 AM

#

Ok i do create a variable in each BP that needs access to the MainCharacter. I was just wondering if there was a better way.

📎 Screenshot_31.png

daring cradle Sep 19, 2020, 12:39 AM

#

@earnest tangle Thanks! I’m gonna experiment with where to put that conditional

tight schooner Sep 19, 2020, 12:42 AM

#

@frozen copper There are different ways, but casting isn't that bad if you keep the web of dependencies in mind. (See: https://youtu.be/hcxetY8g_fs?t=1897)

#

If you have one player pawn and a bunch of things referencing it then that's not a big problem I think...

frozen copper Sep 19, 2020, 12:44 AM

#

Ok thanks

daring cradle Sep 19, 2020, 1:01 AM

#

@earnest tangle Still unsure where to put that conditional for it to work.. i just feel like I'm missing something very basic here

📎 unknown.png

earnest tangle Sep 19, 2020, 1:02 AM

#

you would probably have to check it on tick

#

because keep in mind that the jump will push you into the air, and then you need to repeatedly check whether it has landed yet

daring cradle Sep 19, 2020, 1:02 AM

#

hmm okok

#

So the whole loop would be checked on tick?

earnest tangle Sep 19, 2020, 1:06 AM

#

you probably wouldn't use the loop in that case

#

basically you'd do something like on tick -> if not jumping -> jump

#

else -> check if landed

#

so you'd need to keep track of whether you're currently jumping or not, and whether you should jump again or not

tight schooner Sep 19, 2020, 1:09 AM

#

you could potentially do it in one function/event if you use a timer -- have it set a timer on itself at the end of every check and at the triggering of each new jump

earnest tangle Sep 19, 2020, 1:09 AM

#

it wouldn't be much different from doing it on tick tbh

tight schooner Sep 19, 2020, 1:09 AM

#

and in the event of it having jumped 10 times, it doesn't set a timer on itself and thus the whole thing is concluded

#

you can control the frequency of checking but otherwise yeah, it's just a slight optimization and/or an organizational thing

daring cradle Sep 19, 2020, 1:11 AM

#

Idk why but timers always confused me, but yeah I think I'll try that since tick is a little more expensive. Thanks for both of your help, new to coding logic things :s

#

The tick solution worked though!

earnest tangle Sep 19, 2020, 1:12 AM

#

nice :)

#

tick isn't really more expensive than timers, it's mostly just a question of how often it executes as seanny said

daring cradle Sep 19, 2020, 1:12 AM

#

📎 unknown.png

#

Before I ask how the timer works, im gonna experiment a bit and see if i cant rig it myself

tight schooner Sep 19, 2020, 1:15 AM

#

MyFunctionOrEvent --> [does some stuff] --> Set Timer By Function Name: MyFunctionOrEvent (looping unchecked)

#

is the gist of it

pine trellis Sep 19, 2020, 1:19 AM

#

I am trying to re write some code but noticed the original code has more options for its spawn action

📎 unknown.png

#

how do I get my new spawn actor on the bottom have all the inputs like the top:?

earnest tangle Sep 19, 2020, 1:20 AM

#

choose a class to spawn

#

also some of those will be set from variables

#

Projectile Damage looks like it's a variable in the selected actor type

#

you can make your variables visible in the spawn by ticking "expose on spawn" on the variable settings

#

Oh, and I think if you right click on the spawn transform, you can expose the position, rotation and scale as separate pins

exotic jetty Sep 19, 2020, 1:28 AM

#

do you know a way to make a countdown that can be interrupted at any point and then restarted from the beginning immediately?

earnest tangle Sep 19, 2020, 1:29 AM

#

you could use a timer

#

if you use set timer by event, you get a timer handle which you can use to abort the timer

exotic jetty Sep 19, 2020, 1:30 AM

#

i started ue4 a few days ago, im a bit new

#

not sure how to do that

earnest tangle Sep 19, 2020, 1:31 AM

#

if you google for ue4 timers you'll probably find a bunch of guides with more details :)

daring cradle Sep 19, 2020, 1:31 AM

#

So this works except it does not stop the event once it reaches 10 jumps / 10 "Jump Times"

📎 unknown.png

#

Guy keeps jumping forever

earnest tangle Sep 19, 2020, 1:32 AM

#

it's because you have the looping on the timer set to true

white crypt Sep 19, 2020, 1:33 AM

#

also use a handle as zomg mentioned in previous post

#

when 10 jumps = invalidate and clear handle

daring cradle Sep 19, 2020, 1:34 AM

#

I thought the looping would be set to false once the Jump Times int surpassed 10

#

But that's a better way to do it, thanks Tsauken!

earnest tangle Sep 19, 2020, 1:34 AM

#

you only create the timer once

white crypt Sep 19, 2020, 1:34 AM

#

you only need to call it once when executing the event

daring cradle Sep 19, 2020, 1:35 AM

#

So the "when 10 jumps = invalidate and clear handle", that would be on a tick?

white crypt Sep 19, 2020, 1:37 AM

#

https://prnt.sc/ujv7j5

Lightshot

Screenshot

Captured with Lightshot

daring cradle Sep 19, 2020, 1:40 AM

#

Got it!! Man you guys are so smart

#

GWkyooHappyDay thanks again, also that ++ is a nice little node

cloud trellis Sep 19, 2020, 2:00 AM

#

I have this M4A1 that i imported. i import as a skeletal mesh, and it is one whole piece. so im wondering if theres a way i can make it into 2 parts, so i can detach the magazine, on say a reload animation. thanks

#

dm please

pale blade Sep 19, 2020, 3:14 AM

#

Is it possible to expose on spawn a variable when you add it as a component in the editor instead of Create Widget programmatically?

For example, using Create Widget to programmatically add a user widget (TestVariable1 is exposed on spawn, therefore I can pass in the value when user widget is created):

📎 unknown.png

#

Compared to manually adding it in the editor (I do not know where to pass in TestVariable1):

📎 unknown.png

sinful isle Sep 19, 2020, 3:16 AM

#

Sup guys, I made this blueprint to make a circular array of static meshes

#

📎 unknown.png

#

it works p well, but now I need to make it work on a Skeletal Mesh with Animation, any idea how to do it?

frozen copper Sep 19, 2020, 4:01 AM

#

Right now i have 3 weapons that can be spawned on my actor, i am needing to change my animations up based on which one is spawned. I have made a enum of the weapons but I'm having trouble implementing a way to work it all out.

trim matrix Sep 19, 2020, 4:33 AM

#

@frozen copper a way to work it all out?

#

Well you would use the Anim BP to switch between the different animations.

frozen copper Sep 19, 2020, 4:35 AM

#

Yeah my choice of words... needs work. This is what I'm trying to do but it feels like it could be done better than this.

📎 Screenshot_32.png

trim matrix Sep 19, 2020, 4:36 AM

#

oh

frozen copper Sep 19, 2020, 4:36 AM

#

📎 Screenshot_33.png

trim matrix Sep 19, 2020, 4:36 AM

#

well i dont see why the weapon anim int is needed, Enums work inside the anim bp to

#

You can switch on enum as well, just like your switching on int.

frozen copper Sep 19, 2020, 4:37 AM

#

I need a better understanding of enums and switch on (insert whatever)

trim matrix Sep 19, 2020, 4:37 AM

#

oh

#

Well im sure you understand the basic of what an Enum is

#

Sorta a list of different values.

#

When you do a switch on Enum

#

It just takes the inputed enum and splits the functionality based on the enums value

📎 unknown.png

hearty moss Sep 19, 2020, 4:41 AM

#

'switch on' is like an extended branch, so you won't need any of those branches at all

trim matrix Sep 19, 2020, 4:41 AM

#

yep

hearty moss Sep 19, 2020, 4:42 AM

#

you want to get your 'E_Weapons' enum and plug it into the 'selection' on your switch on

#

then when you switch weapons, you need to set the value of that enum to the weapon you switched to

trim matrix Sep 19, 2020, 4:43 AM

#

you can plug enum varibles into a switch on enum.

📎 unknown.png

hearty moss Sep 19, 2020, 4:43 AM

#

but yea for this usage you don't need that int

#

the enum in this case works as your index

#

think of enums as lists

frozen copper Sep 19, 2020, 4:47 AM

#

Thanks for the help, I'm crashing for the night. I'll try to sort this in my head tomorrow.

flat raft Sep 19, 2020, 5:25 AM

#

Recommendations on how to setup weapons crafting.. from pieces of household item?

#

I'm thinking there's going to be 3 main attachments...like a grip&trigger, power source, and a emitter.

#

Various types of these build different weapons.

earnest tangle Sep 19, 2020, 5:30 AM

#

lol that looks great

flat raft Sep 19, 2020, 5:35 AM

#

I have the construction system done, now just planning the logic

#

I should probably move this to design chat though. 😅

hearty moss Sep 19, 2020, 6:00 AM

#

yo im just looking for a bit of direction and i have no idea what the best way to achieve this would be so im putting it here. i want to have a circle of vision around the player that hides any other pawns that arent in the circle. i want it to act as like shadows, so as the pawns enter the radius of the circle, they start to appear:

📎 unknown.png

#

the red circle in the middle is the player, and the other red circles show how i want the shadows to affect other pawns. i need the shadow to be dark but not black, so the player can still see the level but not the players unless the players start to enter the light

#

its also worth mentioning that this is a 3D third person game

#

pls tag me if you have any ideas! thanks :)

spark jetty Sep 19, 2020, 6:18 AM

#

Hi, is there any easy way to move components between actors at runtime please?

flat raft Sep 19, 2020, 7:02 AM

#

What kinda components ?

#

When you say move... you mean like you pass a sword from one character to the next ?

spark jetty Sep 19, 2020, 7:18 AM

#

@flat raft skeletal mesh component, I want to transfer them between actors, I didn't find anything in blueprints now I'm trying something in C++

#

a do not want to have that component as another actor

tender sierra Sep 19, 2020, 8:51 AM

#

hello

I'd like to drag a CineCameraActor from the world into an actor-blueprint.
I know I can do that in the LevelBlueprint, ie drag camera into there.
But what about other blueprints, eg actor blueprints?

maiden wadi Sep 19, 2020, 9:18 AM

#

@tender sierra Classes(Blueprints) are meant to be self contained. This means that they should generally work no matter the level they're put in. If you use a reference from a specific level inside of a class, that class wouldn't be able to be used in any other level properly. In short, no it's not possible. If you want to do that, you need to create a variable of that type in your class, make that variable instance editable, drop an instance of that class in your level and populate that variable directly on that instance from the details panel.

tender sierra Sep 19, 2020, 9:21 AM

#

thanks @maiden wadi
What about the current location? When you fly around etc. This exists in all level
Can I referr to that in a blueprint that is not level blueprint?

maiden wadi Sep 19, 2020, 9:35 AM

#

@tender sierra Current location of the class that you're working in?

thin apex Sep 19, 2020, 10:17 AM

#

how do i add a notify in a montage??
all the tutorials online are for older versions of unreal

stiff totem Sep 19, 2020, 10:21 AM

#

How do I make a custom event get called every frame? Like the event tick node

earnest tangle Sep 19, 2020, 10:22 AM

#

you could call it from tick?

stiff totem Sep 19, 2020, 10:45 AM

#

Could you elaborate?

#

The event tick node?

tender sierra Sep 19, 2020, 10:59 AM

#

*So you wont need to scroll up ;)
*I wrote:

thanks @maiden wadi
What about the current location? When you fly around etc. This exists in all level
Can I referr to that in a blueprint that is not level blueprint?

you: Current location of the class that you're working in?

Sorry, I wasn't clear here. I meant whatever I spawned into, either player or current camera location
I realize that the case with the player ought to be the same, it is also a reference from a specific level..
But what about the Current Camera Location?

#

Can it be accessed from an actor, or is that also something that can only be worked on in the Level Blueprint?

maiden wadi Sep 19, 2020, 11:07 AM

#

This depends. Usually you put a camera component on pawns that you plan on possessing and on possession your camera manager will get the first enabled camera component it can find to set that as the view. If you have that component on that class, you can get the component pointer and get that component's world location.

tender sierra Sep 19, 2020, 11:08 AM

#

The concept I am thinking of is you fly around (or walk around with a character)
Then you can cycle through certain static cameras placed in the scene

So far, I have the mechanism

#

it looks like this

📎 unknown.png

#

But the code/blueprint are inside the Level Blueprint

Which in itself isnt a problem.

#

What I am curious about is if one can create a Macro (right term?) that is stored outside the Level Blueprint. A solution of some sort where I can drag it into the Level Blueprint and all I would need to do in the Level BP is adding the cameras and wire them onto the Macro

#

Does it make any sense?

If doable, I would need to know what I have to take into consideration. What to put inside the Level BP, what can be put outside

#

For the sake of testing and understanding, I created an Actor BP in the Content Browser
I was able to drag-drop it into the Level BP

Now, the actor I droppde was empty, but knowing it is doable, something tells me I can create stuf in an actor like this and reuse it in level after level

#

all I need to do is adding incredients. Eg Cameras. Or characters. And wire them to that actor that does the magic.

thin apex Sep 19, 2020, 11:20 AM

#

how do i add a notify in a montage??
all the tutorials online are for older versions of unreal

fleet heron Sep 19, 2020, 11:53 AM

#

I need to make the physics mesh fly out from a certain place in the wall when I press the button. I am looking for the second day. what blueprints should be used for this, and how to do it in general?

trim matrix Sep 19, 2020, 12:49 PM

#

how can i get a reference to the BP that created the actor from which i need to get the reference?

#

i mean

#

i have a BP that spawn an actor and from that actor i need a reference to the BP that spawned the actor

#

i can't use cast since it's spawned by multiple BP

earnest tangle Sep 19, 2020, 12:50 PM

#

you could create a variable and assign the creator into the variable after it has been spawned

trim matrix Sep 19, 2020, 12:50 PM

#

yeah and how can i do that?

#

i mean

#

what's the blueprint that tell me which BP spawned the actor?

earnest tangle Sep 19, 2020, 12:51 PM

#

there isn't one, that's why you'd need to assign it yourself

#

basically you create a variable in your BP that you are spawning, let's call it "Creator" or whatever

#

you can enable "Expose on Spawn" on the variable, which makes it appear as a pin in the spawn node

#

then you assign "Self" into the pin and there you go :)

trim matrix Sep 19, 2020, 12:51 PM

#

ohh

#

i see

#

ty so much 😗

#

variable type?

earnest tangle Sep 19, 2020, 12:52 PM

#

depends on what you want to do with it

#

Actor would probably work

trim matrix Sep 19, 2020, 12:54 PM

#

ty

terse goblet Sep 19, 2020, 1:01 PM

#

Editor= GI-PC-Char-GM-GS-PS-HUD-Level-Actor
Packaged= GI-GM-GS-PS-Char-PC-HUD-Level-Actor

tight schooner Sep 19, 2020, 1:11 PM

#

@tender sierra it's doable but putting fundamental game systems inside of a level blueprint is a general no-no, because it's tied to the level and may cause structural problems down the line. It really has to be specific to that level, or else it should live in its own blueprint asset.

To answer your question, yeah, macro libraries and function libraries can be made.

tender sierra Sep 19, 2020, 1:17 PM

#

thanks @tight schooner

just like you're saying, I rather not put all of it inside the Level BP
The example shown here creates a system where you use a shortcut to change what camera you are looking through
Developing this bp further, one could add a loop
Amongst the cameras/views, one could add the player, ie player > cam1 > cam2 ... > player
And/or the Current Camera Location

So I understand that camreas can only exist in Level BP, at the same time; I want a solution that I can store in the project and reuse, migrate etc

📎 unknown.png

#

So I guess Macro- and Functions-libraries is what I need to look into, based on your suggestion.

#

Just a question though: what about the Current Camera Location. Is that something you can referr to in a Blueprint Actor or again only in Level Blueprint?

tight schooner Sep 19, 2020, 1:23 PM

#

If you have a standalone camera manager actor (for example) then it needs some way to know which cameras to control. And there are a bunch of ways to do that. BeginPlay --> Get All Actors of Class (or Get All Actors with Tag) is a go-to. Or you can make a public variable where you select actors placed in the level (I don't have direct experience with this approach, but I think it's something that can be done). For finding the player, there are nodes like Get Player Pawn and Get Player Controller.

But yeah, doing stuff outside of the level blueprint necessitates some extra script to make the actors aware of each other.

#

But it's the "better" way because it's not dependent on a specific level

primal smelt Sep 19, 2020, 1:48 PM

#

Hi everyone. I'm trying to build a vector array in a construction script to use with a spline. I am not trying to build a spline from an array, I know how to do that. What I am trying to do is start with an array variable with 0 array elements (or just 1 if I have to) and at construction have it build an index. I would like it to check the Z value at the current index and add 10 to it each time.

So:

Index 0: Z=0
Index 1: Z = 10
Index 2: Z = 20

etc

I'd like it to do this until it builds an index of 79, at which point it will stop and then do the spline generation (which I already know how to do).

Could anybody please suggest a good method of doing this?

earnest tangle Sep 19, 2020, 1:49 PM

#

a for loop?

tender sierra Sep 19, 2020, 1:53 PM

#

thank you again @tight schooner :)

I think this clears up for me the way how to do things.

This public variable, is it like an array or a list of things I can add? I have seen stuff like this (screenshot)

📎 unknown.png

#

is this what you are suggesting?

I can accept that I drag/drop the cameras into the Level BP and drag-drop this Camera Manager Actor I create outside the Level BP.
Then inside the Level BP I could connect the cameras to the Camera Manager BP that supports an array

Does this sound like a correct approach?

primal smelt Sep 19, 2020, 1:56 PM

#

@earnest tangle so I know how to use a for loop to add data to each index but I don't know how I would use one to build the number of indexes itself

#

@earnest tangle basically my goal is to not have to spam click add array elements 80 times

earnest tangle Sep 19, 2020, 1:56 PM

#

hehe

#

you can use the Add node for the array inside your for loop

#

that'll just add new things into it on each iteration

elfin hazel Sep 19, 2020, 1:58 PM

#

Don't forget to clear the array before the loop, or each time the construction runs, it will just grow the array.

earnest tangle Sep 19, 2020, 1:58 PM

#

yeah that's a good point, construction scripts have annoying gotchas like that lol

primal smelt Sep 19, 2020, 1:59 PM

#

Ok so this is what I have so far, where am I going wrong please? I know this isn't a for loop but I was equally dumbfounded when trying that

📎 Untitled.png

earnest tangle Sep 19, 2020, 1:59 PM

#

that while loop is kind of wack :D

gentle urchin Sep 19, 2020, 1:59 PM

#

📎 unknown.png

#

index 0; 0,0,0
index 35; 0,0,350
index 79; 0,0,790

primal smelt Sep 19, 2020, 2:04 PM

#

Brilliant, thanks ever so much. I initially tried a For Each Loop as that came specifically under the Array section but was getting stumped at how to define what the last index would be.

#

Is there a way to view the updated array in the editor or do I jus have to do a print string for that information?

gentle urchin Sep 19, 2020, 2:06 PM

#

set the array to instance editable

#

and you'll see it when the actor is selected

#

in its property widget

primal smelt Sep 19, 2020, 2:09 PM

#

Got it, perfect! Thank you 🙂

sour aspen Sep 19, 2020, 2:29 PM

#

Hello what is the best way to create a breathing effect on a material I am using timeline but i cant loop it whatever i tried it only runs once

📎 unknown.png

gusty mango Sep 19, 2020, 2:31 PM

#

Hey everyone, total noob here learning blueprints and immediately ran into an issue I haven't been able to figure out. I have set up a simple box collision where on begin/end overlap it is supposed to toggle the visibility of an object. It seems like its working but the object it toggles visibility of flickers at random depending on where the player is in the box collision area. At the corners its solid but if I completely enter the collision area it is not being displayed. I have it set up exactly how the official unreal engine tutorial has it set up so I'm at a loss here. Here's a short video showing it
https://www.youtube.com/watch?v=zp9rsEJSEIE

YouTube

Jordan Neff

UE4 Blueprint Toggle Visibility Flickering Problem

Help :(

▶ Play video

daring quail Sep 19, 2020, 2:49 PM

#

I have a question its a very Basic one. So the question is
Is it possible to create an entire game with just blueprints??
Now I have researched a lot on this and they say its possible but its very tedious and the performance is bad.
But they are all old answers and I know blueprints have evolved a lot too
And what is Nativization?

#

I hope this is the right place for this question

gusty mango Sep 19, 2020, 2:55 PM

#

I'm sure it depends entirely on the game and what is involved. I've seen some super impressive things built entirely using blueprints. I'm working on a puzzle game that I plan to use exclusively blueprints for which is definitely possible, but if you're thinking of doing something a lot more complex and involving multiplayer and a lot of variables being kept track of then you'd probably start running into issues. But hey I'm a noob so don't take my word as gospel

earnest tangle Sep 19, 2020, 3:06 PM

#

afaik Epic built Robo Recall entirely in BP's

tight schooner Sep 19, 2020, 3:16 PM

#

@daring quail yeah, you can build a game with just BP. The issues you might run into are... If you have data-heavy situations then BPs may not be sufficiently performant but it's very situational — build it first and then profile performance, and make decisions from there. Let's say you have some situation where a BP needs to iterate over a giant array on every single frame then yeah you might see it kick up the game thread a few millieconds.

Epic's vision for BP is you use it as a design and prototyping layer. When you make your BP thing, if it seems ripe for optimization, you then hand it off to that top dollar engineering team you totally have to rewrite it as performant C++, with its design-relevant functions exposed as BP nodes.

Short of that, UE4 does have automatic nativization but it can be kind of touchy and buggy, and you'll have to do a lot of experimentation to discover the boundaries of it. It does speed up BP by like a factor of 10 though. If you have a data-heavy / node-heavy BP you can try selectively nativizing it — that can be a reasonable approach.

earnest tangle Sep 19, 2020, 3:18 PM

#

it's fairly easy to do move BP stuff to C++ anyway if you know how to code

tight schooner Sep 19, 2020, 3:19 PM

#

Other issues might be technology integration and multiplayer. BP only has a subset of the functionality that C++ has; there are things you can only do there.

#

I haven't learned C++ yet. I only maintain a cute little function library to expose some esoteric stuff to BP, like running the construction script on an actor on demand (which is handy for editor-only functions & Editor Utility Widgets)

earnest tangle Sep 19, 2020, 3:23 PM

#

yeah you can get pretty far with just a few utils like that :)

#

in my project most of my C++ stuff is basically just utils like that, and some data wrangling stuff which would be entirely doable in BP's but it was just a bit easier to do in C++

tight schooner Sep 19, 2020, 3:31 PM

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So yeah, if you're making Tetris Effect or Samurai Shodown then BP is ok. ("Kine" is a BP-only indie that Epic showed off.) If you're making Kerbal Space Program or Cities Skylines then you'll probably need more than BP.

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@sour aspen The best way is to do it all inside the material itself so that Blueprint doesn't have to drive it on tick. You would, for example, make a material graph that's like

Time —> Sine —> multiply by some color or w/e

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If you super want to do it with a BP timeline then I guess you can plug Finished into Play From Start, lol

sour aspen Sep 19, 2020, 3:37 PM

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No accually i've been searching a way to do it in material editor but i was convinced that it's not possible so i tried that solution but this makes sense ! thank you

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But how can i make this time thing slower?

tight schooner Sep 19, 2020, 3:37 PM

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Multiply the Time output before feeding it into the Sine node, I think