2,286 questions
1
vote
0
answers
56
views
How to suspend the rendering thread in UE4?
The mobile platform I'm using in my current UE 4.27 project has low performance, so I'm considering whether I can pause the rendering thread and release the rendering resources in the scene when the ...
- 11
0
votes
0
answers
69
views
Why Unreal does not support UMG animation tick for FDefaultGameMoviePlayer
As we all knows, when we LoadMap in Unreal engine, the main thread will be blocked, and the UI will be stuck. So Unreal provide us FDefaultGameMoviePlayer, which uses another thread (...
- 23
0
votes
0
answers
43
views
How to align RoadRunner scene coordinates with UTM coordinates to reduce GPS conversion offset in Unreal Engine simulation?
I'm working on a simulation project using RoadRunner to generate maps, and running autonomous driving algorithms in Unreal Engine (UE) via AirSim. My algorithms are based entirely on UTM coordinates, ...
- 331
0
votes
0
answers
96
views
UE5 Persisting viewport scalability settings how?
I’m trying to figure out how to persist the scalability settings (set via the little viewport “Settings” dropdown in the editor) between Unreal Engine sessions.
Right now, whenever I set the ...
- 1,227
0
votes
1
answer
151
views
Mixamo Animation Causes Character to Float in UE4 Despite Being Grounded in Blender/Maya
Problem's solved though I would be glad for a cleaner solution in Blender. (I can't export Blender's fbx animation into UE4 without my skeletal mesh being deformed - some tips are much appreciated)
...
1
vote
0
answers
139
views
Anyone knows how to open this zipped Unreal Engine 5 project?
So, I've a zip file that contains all the project files including Content and Config files.
However, after I unzip it the file doesn't include .uproject file.
I tried to unpak the .pak file and run ...
- 11
2
votes
1
answer
79
views
Crash in StatsThread in unreal engine 4 during memory free operation
I am experiencing the following crash in a running instance of unreal engine 4 in editor game simulation:
Exception thrown at 0x00007FFD1E29551B (UE4Editor-Core.dll) in UE4Editor-Win64-DebugGame.exe: ...
- 34.5k
1
vote
2
answers
65
views
What does explorer show when you right-click app icon in taskbar? How to change it?
I'm trying to change the name which Windows shows when I right-click app (.exe) icon in taskbar.
I guessed it showed File Description in the file property. So I changed it using rcedit. But it didn't ...
- 106
1
vote
0
answers
56
views
Get Bluetooth mouse input on android, In Unreal Engine?
I want to receive mouse input in an Android project. I have a project that needs a Bluetooth mouse connected to the mobile and I can receive mouse inputs like X and Y movements, but the problem is ...
- 63
2
votes
0
answers
70
views
Where can I install the XR_FB_passthrough OpenXR extension in UE 4.27
I'm assuming it's part of the Oculus OpenXR plugin but I can't find any reference in there to passthrough.
Even with that plugin xrCreatePassthroughFB isn't implemented, I've tried looking at ...
- 21
1
vote
0
answers
168
views
Why my UI is pixelated on build? Unreal engine 4.27 for android
I have an application that only has UI (WidgetsBlueprints) on Unreal Engine 4.27 and when I build and install the apk on severeal devices, the UI is vey pixelated, with low resolution aspect. My app ...
0
votes
1
answer
47
views
UE4 camera blend when switching between 2 characters
I'm trying to set up a system in UE4.27 where I can switch between 2 characters. It works but when I tried to include a camera blend, it still switches character but the camera just jumps and doesn't ...
- 179
1
vote
0
answers
69
views
OnHit function is not called
I am new to Unreal Engine and am trying to make projectiles fired disappear after hitting something and apply impulse to it if the physics can be generated on that object. I am using Unreal 4.27.
...
- 11
5
votes
1
answer
611
views
Why is my Unreal Engine physics asset behaving as if rotated by 90 degrees?
I'm writing a custom movement component and moving a custom skeletal mesh I made in blender using SafeMoveUpdatedComponent. Here is the main part of the code:
const FVector PositionDelta = ...
- 2,137
1
vote
1
answer
214
views
Geometry collection particle's world location?
I've built a custom Geometry Collection that needs to get the absolute world location of each of the particles. But so far, I've only got the relative translation of the particle. So in the following ...
- 4,779
1
vote
1
answer
386
views
Module: how to include named module from Public folder?
I've created a module in my UE5 game, called MinimapSystem and structured it like this (this is inside my game's Source folder):
MinimapSystem
├───MinimapSystem.Build.cs
├───Private
│ └──...
- 4,779
4
votes
2
answers
137
views
Creating an effective duplicate of a class that cannot interact with its base
Unreal Engine has a class called FVector which is a somewhat simple three component float vector.
One of the things that can be represented with that vector are coordinates. However, those coordinates ...
- 6,382
1
vote
0
answers
130
views
I create a selfdefine runtime module for unreal engine, but it does not startup
I create a new module in directory Engine/Source/Runtime/MyModule, and create MyModule.Build.cs, MyModule.cpp.
In MyModule.Build.cs, I write:
using UnrealBuildTool;
public class MyModule: ...
- 145
1
vote
1
answer
516
views
Enabling DLSS for UE 4.27.2
I currently have a UE 4.27.2 project that I'd like to enable DLSS for, I'm not familiar with github and only been using unreal engine directly from the epic launcher so would really appreciate some ...
- 301
0
votes
2
answers
135
views
class keyword for UPROPERTY()
I'm new to UnrealEngine and studying C++ development in scope of games. For now I read a tutorial where I should create a AMyPawn and UPawnMovementComponent to attach it then.
Here is the definition ...
- 1
2
votes
0
answers
108
views
Why did my optimization of compute shader cache hit ratio have the opposite effect?
I wrote a compute shader in ue4 that each thread needs to get the value of a structured buffer corresponding to its own id.As shown in the figure below, for example, my texture is 8x8, the thread ...
- 21
1
vote
1
answer
473
views
How do I read UE4 localization files with CUE4Parse?
I am trying to read the localization files (.locres and .locmeta) from an unencrypted UE4 PAK file using CUE4Parse. But when I try to call LoadObject or LoadObjectAll to read the file I get errors ...
- 683
3
votes
1
answer
1k
views
Unreal Engine requires Xcode to compile shaders for Metal
Unreal Engine requires Xcode to compile shaders for Metal.
To continue, install Xcode and open it to accept the license agreement. If you install Xcode to any location other than Applications/Xcode, ...
1
vote
1
answer
651
views
How To Convert a 2D Viewport Point to a 3D World Space Coordinate in Unreal Engine 4.27
I'm new to Unreal Engine (4.27) and attempting to recreate a project I started in jMonkey in Unreal Engine. The project is a side-scroller game with 3D elements (think Little Big Planet or the side-...
- 11
-1
votes
1
answer
174
views
SetControlRotation doesn't work for some reason with Unreal engine
My code:
APlayerController* controller = UGameplayStatics::GetPlayerController(this->GetWorld(), 0);
FRotator Rotation = Controller->GetControlRotation();
Controller->SetControlRotation(...
- 49
-1
votes
1
answer
3k
views
Unreal Engine 5: packagingresults: error: unknown error
Alright y'all, so here's the issue: I have finished creating my game in Unreal Engine 5.4, and as I Build All Levels, and then Cook Content, I am ready to Package Project (I did get a couple of ...
- 1
1
vote
0
answers
39
views
Character doesn`t spawn on imported arena
I have imported a multiplayer arena, but my character cant spawn on it from player start. It feels like space in arena is also a part of the mesh. But when i am put player start out of the arena it ...
- 49
1
vote
0
answers
91
views
Running slide animation problem Unreal Engine 5
When my character is running and when I press "c" he is doing good animation for slide but the problem is that when animation is over the character is going back to the place where he was ...
0
votes
1
answer
92
views
Error "too many arguments in function call" C++ [closed]
I wrote a small debugging code that allows you to display the Processor, Video card, as well as the user's OS
When writing code using a function
static FString GetOSVersion()
I get the numeric ...
- 3
0
votes
1
answer
556
views
What does the property specifier BlueprintGetter and BlueprintSetter do?
private:
// UPROPERTY(BlueprintGetter=GetHealth, BlueprintSetter=SetHealth) ?????
int32 Health;
public:
UFUNCTION(BlueprintPure)
int32 GetHealth() const { return Health; }
...
- 3
0
votes
1
answer
557
views
Using gRPC in Unreal Engine 4
I'm using Unreal Engine 4.26. While my game is running, I want it to communicate with a gRPC server to perform certain actions.
Is there a plugin available that allows me to easily implement a gRPC ...
- 1
1
vote
1
answer
447
views
How to open a node on unreal and see what is inside it
i am new to unreal engine. The below is the blue print of a button (i am not the one who created).i want to open the "Call Button Clicked" and change the things when the button click happens....
- 1,336
-1
votes
1
answer
188
views
Can't understand Unreal engine C++ function type
I am new to C++ Unreal.
UFUNCTION()
int32 AddToInventory(AInventoryActor* ActorToAdd);
in this code i cant understand what does "int32" mean?
UFUNCTION()
AddToInventory(AInventoryActor* ...
- 49
0
votes
1
answer
605
views
Unreal Engine Gradle errors
I am currently trying to deploy an Unreal Engine 4.27 project to an Android phone. I have followed the official instructions on how to set-up Android deployment and I am running Gradle 7.0.3 and have ...
- 1
0
votes
1
answer
521
views
Trouble sending audio via custom AudioDeviceModule with WebRTC in C++
I am trying to implement a WebRTC Plugin for Unreal Engine using C++ and I have been having trouble sending Audio via the Custom AudioDeviceModule I created.
The problem is quite simple, I can see ...
- 11
0
votes
0
answers
728
views
Error with gather localization - Unreal Engine
I’m trying to gather my localization. I’m getting this error and I don’t know what it means.
I would just like to have a solution. What do you recommend doing? I use Lyra Unreal Engine.
What I want ...
2
votes
1
answer
190
views
UE4: CodeSign Failed, get-task-allow entitlement doesn't match
I have a very simple Unreal project which is being packaged without the plugin Apple ARKit. When I enable ARKit, it gives me an error
Provisioning Profile doesn't match the entitlements file's value ...
- 35
0
votes
1
answer
271
views
Troubleshooting Unreal Engine Integration with Quiche Library for QUIC Client Development
I’m reaching out for assistance with a project I’ve been working on involving Unreal Engine and the Quiche library.
Background:
I’ve been working on integrating the Quiche library into Unreal Engine ...
1
vote
1
answer
588
views
Send image over UDP to Unreal Engine and load it there
I want to send images over UDP from a Python script to Unreal and load it there and create a Texture in the next step out of it. I am currently struggeling with receiving the image.
Here is my simple ...
- 109
0
votes
1
answer
56
views
UE4.27 spectator crach
I have a spectator in an unreal(4.27) CPP game project. The spectator will play video on its own client. Sometimes, it crashes and I get this log:
LogWindows: Error: Assertion failed: bOk [File:D:/...
- 11
0
votes
2
answers
1k
views
Create TArray dynamically in Unreal Engine
Suppose I have a UObject class with a TArray saved as UPROPERTY. Is there a way to create TArray dynamically and then set Objects to a newly created array (see code below)?
UCLASS(BlueprintType, ...
- 1,447
2
votes
0
answers
206
views
Unreal Engine 4.18 Lobby Browser List is region locked to steam download region
I work on a game project for some friends, and they have the issue that the lobby browser widget when it calls the find session function using the OnlineSubsystemSteam it only returns lobbies on the ...
- 21
0
votes
1
answer
411
views
Actor moves towards the wrong axis in UnrealEngine
I am trying to run the airsim drone inside an unreal engine environment.After placing the actor start position on a custom environment for my drone and rotating the drone towards the way I want it to ...
- 3
0
votes
0
answers
126
views
Emulated mouse clicks with Win32 API not registering with game application
I'm building an application in Unreal Engine, where the user inputs are coming from a secondary device. This second device is capturing mouse movements from a Human Interface Device, and I'm sending ...
- 5,578
0
votes
1
answer
2k
views
I cannot find the focal length of the camera in unreal engine
When playing the game in unreal, there is a camera that follows the character. I have gone to the view port clicked on the camera and checked the details, nowhere is it mentioned about the focal ...
- 13
1
vote
1
answer
2k
views
Added a c++ class to unreal engine , however failed to generate project files
When creating my unreal project, i selected blueprints. Now i want to export the transform details a character to an external file. I cannot find a way to do it through blueprints so i have to ...
- 13
0
votes
1
answer
1k
views
.uasset has disappeared from the development environment
I'm having a problem with my development environment. In UE5.3.2, while running a project in development mode in the viewport, my electricity was cut off and my computer turned off. After restarting, ...
- 39
1
vote
1
answer
276
views
AR Application using Unity (Motion Tracking and Real Time Positioning)
I want to create an AR Application, this AR Application should be able to do these things,
track position in real time depending on a local coordination system used in unity.
move the character/...
- 13
0
votes
1
answer
110
views
angle of launch to hit the object on desired location in unity 3D
I am creating a cricket game and I want to implement a bowling logic that is, I want to through the ball to the ground at specified location(should not gain any height it should start moving towards ...
0
votes
1
answer
343
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.
Looks like in theory, I can use UPlayMontageCallbackProxy::...
- 2,711