Questions tagged [unreal-5]

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I want to change the direction of my platform from z direction to y direction alternatively

So basically, I want my platform to move first on the z axis from start position to end position, and then from ...
Ken's user avatar
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triangle twice too big for mesh blueprint

I don't understand why the triangles covering my mesh are twice too big Here's my blueprints main function calling the mesh and the triangle function: the mesh function which is supposed to work ...
loic tonneau's user avatar
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Help with making biomes and cities with procedural generation

I'm working on a game in Unreal Engine 5 with Blueprints and the Fast Noise plugin. I've been having trouble getting the biomes and cities set up. I'm not fully sure how to make the biomes affect the ...
Jam's user avatar
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while rotating around Y in Transform, it rotates around Z in Viewport Is it a bug in Unreal Engine 5.3?

I struggle to understand how the transfomartion is working in Unreal. I've faced one interesting situation and cannot realize what happed. Could somebody explain please why my rig is rotating around Z ...
Dron4K's user avatar
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11 views

How offset is working in UE5.3 Rigging editor

How to get local offset of a control with Python in UE RigEditor? I’ve found a function to get global offset unreal.RigHierarchy.get_global_control_offset_transform ...
Dron4K's user avatar
  • 131
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28 views

Failed to merge bones

I tried to use two different fbx models as a ue mannequin, but I got an error every time: FAILED TO MERGE BONES: This could happen if significant hierarchical changes have been made e.g. inserting a ...
Михаил Байраков's user avatar
1 vote
1 answer
71 views

How to record high quality footage for a game trailer?

I'm trying to record a trailer for my game using OBS, but the recordings are coming out in very poor quality. I've tried increasing the video bitrate, but that just makes the game lag during recording....
IDREES AZIZ's user avatar
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76 views

How to continue with Unreal engine after crash?

I know that it is possible to do it so that when the engine (and maybe the game) crashes, it does not close, and continues to work. Who knows how to do it? I know there are many ways to do something ...
grouptout's user avatar
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3 answers
175 views

How to send an HTTP Request from an Unreal Blueprint?

I'm updating a little telemetry-logging blueprint that uses HTTP requests to log game events to a server. In the past, I've used the Fetch plugin for this, though it's currently listed as "Not ...
LudoProf's user avatar
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37 views

How to add Input Modifiers in C++

I have a blank Input Mapping Context to which I add the Input Actions that I require at specific times during my game. For example, when I make a roll, I simply add the camera movement Input Action ...
afarre's user avatar
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What does a "non viable function" error mean?

I am trying to use a websocket and some C++ code in order to trigger a function toogleLight every time Unreal connects with a server. But I have the following error:...
Nicolas Osorio Bustos's user avatar
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How to prevent sun light from passing through the walls and flickering when navigating in viewport?

I am new to UE5. I am using a geometry brush to create an inner box and an outer box. The inner is set to brush type ‘subtractive’, resulting in a simple room like this: Then I create several windows ...
storycg's user avatar
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0 answers
46 views

How to use the DirectoryWatcher module in an Unreal Engine packaged build

I'm using the IDirectoryWatcher module on my project to monitor changes on a directory and when packaging it, I ran into a number of issues. Attempt 1: If I simply add the ...
afarre's user avatar
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41 views

Full Unreal engine API support in Python?

I'm a newbie to the Unreal engine, and I've seen that there is very little documentation and examples of Python in the Unreal engine, so I'd like to ask if, leaving out the gameplay functionality, we ...
Haitao Xiao's user avatar
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1 answer
62 views

Why do the camera and the character not move when I use my own mapping context?

I replaced the defult mannequin with my character and created a new input action and an input mapping context. But when I change the default mapping context to mine, the camera and the character ...
dsa's user avatar
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25 views

Efficient Implementation of Dynamic Snake-Like Body in UE5: Seeking Advice on Optimized Approach

Platforms: iOS, Android, and PC. I want to implement a snake body that can dynamically grow in length, narrow, and bend (simulate body movement, similar to bending in an arc). I'm using UE5, and ...
Toki.u. Doki's user avatar
1 vote
1 answer
138 views

Best practice for Actor Components that require other Actor Component functionality

I struggle to understand best practices regarding composition and inheritance for Actor Components in Unreal Engine 5. Concretely, I want to build a base class, say ...
Simon Fischer's user avatar
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cannot see the character mesh in unreal engine

I was adding the AIModule in my project, but, after I've rebuilt the project after deleting the Saved, Intermediate and Binaries folder, I can't make the Mesh in the Enemy Character appear in the ...
bzal's user avatar
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53 views

Which part of UnLua for UE5 can be defined at runtime?

I'm looking into options to allow a released UE5 game to be modded, with just "text files". That is, without having to use the Unreal Editor, and give access to the game code, to create the ...
Sebastien Diot's user avatar
0 votes
1 answer
61 views

What is the best way to handle removing elements from an array while iterating through it in Unreal Engine Blueprint?

I'm trying to remove "Park" Area Controls from a Scene Actions array in Unreal Engine Blueprint. My current attempt doesn't work, and I'd appreciate help troubleshooting it. Details: I have ...
User_4373's user avatar
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1 answer
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UE5 - Add texture to landscape

I created a terrain in gaea and exported it to UE5. Then I created a new material with this texture which is for my whole landscape: Material settings: The preview above is already looking good. But ...
Black's user avatar
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Correct Orientation from Blender to Unreal Engine 5 in a spline

Let me preface this by saying I'm an absolute beginner and I have no idea what I'm doing. Following lot's of different tutorials, I want to create a road spline in unreal engine. Therefor I created a ...
infinitezero's user avatar
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0 answers
17 views

Can I safely remove assets after uninstalling Unreal?

I uninstalled Unreal Engine 5.1. I have several projects saved, some of which are using a lot of disk space. This is mostly because of downloaded assets (like Megascans). Is there any way I can glean ...
Joachim's user avatar
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0 answers
123 views

having problems packaging my game in UE 5.3.2

I have tried to package my game and it doesn't work. I am unsure how to proceed any further. It was a week ago or so that I started trying to package my game in 5.3.2 but that didn't work. Upon ...
Alchemyst Mystique's user avatar
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62 views

Interface in UE5 not casting or working as a variable

In UE5.3.2, I have created an interface in C++ (code at the end) that I'm trying to implement in a Blueprint. The editor gets the type correctly, and I have been able to make a simple implementation: ...
lilezek's user avatar
  • 146
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0 answers
28 views

Unreal 5 Strange Global Illumination Effects

As stated in the title, I am having some strange effects with global illumination. I am using Lumen, and I have no active post process volumes (I have one which is set to "editor only") I ...
OGorbitz's user avatar
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0 answers
34 views

clion.sh does not exist

I have Unreal Engine in Linux launched with ./UnrealEditor This file here ...
Idriss's user avatar
  • 1
0 votes
1 answer
145 views

Using Unreal Engine 5 PCG graph to spawn terrain altering blueprint actors causing loop

I am using a PCG graph to spawn in actors, which are blueprint stamps for the terrain height map. I believe the issue I am facing is that when the blueprints are spawned, they alter the terrain, which ...
Sudoadmin's user avatar
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0 answers
10 views

Unreal Engine FDirectoryWatcherModule catching multiple events per file operation

I followed this post to implement a delegate on a directory that notifies me when a change has happened (add file, delete file or remove file). This works fine, though the issue is that for each ...
afarre's user avatar
  • 111
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0 answers
38 views

Unreal Engine: How to edit the M_Athena_Terrain_IceBiome.M_Athena_Terrain_IceBiome material?

I'm using the snow landscape as described here: https://www.reddit.com/r/FortniteCreative/comments/12100h0/terrain_materials_uefn/ This is the full path to the material: /Script/Engine.Material'/Game/...
No Name's user avatar
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0 answers
106 views

Viewport blurry when playing as character

In Unreal Engine 5, whenever I run the game, the viewport becomes very blurry with strange artifacting and twitching. This only happens when I'm attached to the player controller. If I eject from it, ...
Candle's user avatar
  • 141
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0 answers
56 views

How to move the bones of a model by just pressing a key in unreal engine 5?

I have the following problem. I need to be able to rotate a bone (any bone) in a model in unreal engine 5.3. I cannot use the timeline. For example, if I press the space bar then I would need the arm ...
Nicolas Osorio Bustos's user avatar
0 votes
1 answer
38 views

In Unreal Engine 5, how do I include and use UPlayMontageCallbackProxy::CreateProxyObjectForPlayMontage in C++?

I want to play my UAnimMontage via C++, and in particular, want to make use of the conveniences of UPlayMontageCallbackProxy. ...
brain56's user avatar
  • 219
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0 answers
520 views

How to extract ucas and utoc io store container files in unreal engine 5

I tried to use different programs for this, such as fmodel and UnrealPakViewer, but fmodel does not support ucas and .binka audio files. UnrealPakViewer can open ucas and I can see files in it, but I ...
Михаил Байраков's user avatar
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0 answers
159 views

UE5; fatal error: CoreMinimal.h: No such file or directory

I am leaning to use UE5 and am following this tutorial : https://www.youtube.com/watch?v=KQgOqyYoHAs However, when I try to compile a simple pawn class on vscode, I am given the error: "...
AssEat1451's user avatar
0 votes
0 answers
64 views

How can i move actor's bounding box center in relative location in Unreal Engine 5?

This is my situation. I need align the center of the object (it's box) and the center of the scene component. I have only center of the box TVector type or FVector. How can i do it? ...
anime username's user avatar
0 votes
0 answers
99 views

Wrong initial level loaded for packaged build

I am having an issue with Unreal Engine 5.2 initially loading "Temp/Untitled_0" as the level before loading the actual default level that I have set in project settings. I have the editor ...
sabo's user avatar
  • 237
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0 answers
365 views

Anim notifies not working in unreal engine

. I think I have setup things needed to fireoff a custom AnimNotify, but, for some reason, custom notifies don't fire off. The premade notifies for playing sounds etc, fire off okay. But, this notify ...
mleu's user avatar
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0 answers
86 views

How to handle the access token to use across the game sessions

I've successfully implemented a login system using Blueprint and the VA Rest plugin in Unreal Engine. After the login, I obtained an authentication token, but I'm currently facing a challenge in ...
Rasik's user avatar
  • 101
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0 answers
72 views

Unreal 5.3 ignores changes in Visual Studio Code

I’m using Unreal 5.3 on Ubuntu 23.04 “Lunar.” I’m not using Windows (I really can’t stand it), and there is no Visual Studio on Linux. (It's not even supported by Wine.) But we have VS Code, the ...
eje211's user avatar
  • 101
1 vote
0 answers
42 views

How to blend 2 different metahumans seemlessly during animation

I'm new on this site so please let me know if this is the wrong section to post to. I have an idea for a whole bunch of animations revolving around 2 semi-identical twins that live in the same body. I ...
Majd Odeh's user avatar
  • 111
0 votes
1 answer
68 views

Static Niagara System for fire on a torch

I'm building a Niagara System for fire and smoke that would be placed on a torch when it's lit. While smoke works just fine when it's static, when I move the camera (and so the torch itself moves too) ...
user3272018's user avatar
1 vote
1 answer
249 views

Stuck trying to build UE for iOS on Mac

I am trying to build an AR game for iOS, using a custom build of Unreal Engine 5.1.1, on an Apple Silicon (M1 Max) Macbook Pro. (I have to use a custom branch of UE5 because there is a problem with ...
d0g's user avatar
  • 111
0 votes
0 answers
78 views

How do I add a Mesh to an AActor at runtime in c++ in Unreal Engine 5.3

For Unreal 5.0, 5.1 and 5.2 I used the following code to do this: ...
marc40000's user avatar
  • 163
0 votes
0 answers
273 views

Unreal 5.2 - foliage texture missing in build

I'm working on a demo in Unreal 5.2 and I would like to share the build. I noticed that when I cook the build, the foliage is missing. In Project settings --> <...
user avatar
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0 answers
236 views

MediaPlayer looping video freezes after 1st or 2nd loop

I am trying to make a VHS effect for my game in UE5, using a looping MP4 video for the user interface. The video just freezes after the 1st or 2nd loop during test in viewport. I tried to set ...
Jotunn's user avatar
  • 1
0 votes
0 answers
102 views

What are the advantages of TWeakObjectPtr automatic nulling?

When you use TWeakObjectPtr to hold an Actor reference then the pointer variable is automatically nulled for you by GC when the <...
Kostej's user avatar
  • 33
1 vote
0 answers
66 views

How to animate multiple animation blueprints offseting time for each instance?

I'm new to Unreal Engine and would like to get an effect similar to this one: The idea is to have an Animation BluePrint with data from a Live Link Pose node to start with. To achieve the effect, my ...
George Profenza's user avatar
2 votes
0 answers
149 views

What does SetGamePaused do internally?

I would like to implement changing game speed similar to RTS games (pause, 1x, 2x, 4x). For the faster times I can set bigger Time Dilation but for 0x time I would like to know if I can just use ...
Kostej's user avatar
  • 33
1 vote
0 answers
479 views

Issue Joining a Session Created Through EOS in Unreal Engine 5

I'm trying to build a Peer-2-Peer multiplayer game using EOS (Epic Online Services) Online Subsystem in Unreal Engine 5.1.1. The Setup: I configured my organization (product, application, client, ...
Elias Marrero's user avatar