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Questions tagged [unreal-4]

Unreal Engine 4 is a professional suite of tools and technologies used for building high-quality games across a range of platforms.

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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
  • 101
21 votes
7 answers
18k views

Do real game developers use blueprints, or do they always use C++?

I'm starting to learn Unreal Engine 4. Every time I use blueprints, I think "that's not right" and I need to use C++, but there are not as many tutorials with c++ code. So, is it ok to use ...
mendzek 's user avatar
0 votes
1 answer
84 views

How do I render zones like Cities Skylines district tool?

I am trying to implement a zoning system like the district tool in Cities Skylines (see screenshot below). The player is able to draw/modify/erase zones with a brush tool. Internally, I represent each ...
sqd's user avatar
  • 111
0 votes
0 answers
117 views

Install Unreal Engine 4.22.2 on Ubuntu 22.04

I am trying to setup NDDS on Ubuntu 22.04 which requires Unreal Engine 4.22.2. Looking at the oldest available versions of Unreal Engine for Linux, I don't find 4.22.2. What do you suggest to do? The ...
Mona Jalal's user avatar
0 votes
0 answers
111 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
0 votes
0 answers
19 views

How to set up Unreal camera dimensions to export a book cover?

In the following image, you can see the camera settings of Unreal Engine. Suppose you have a scene. How can I setup the camera dimensions to match perfectly, and ready to export, an Amazon ebook ...
M.N.Raia's user avatar
  • 101
0 votes
1 answer
40 views

Remove StaticMesh via debug console in ue4

How do I in game dev build debug console: list scene meshes remove exact mesh causing perfomance hit? tried: show StaticMesh removes all meshes https://docs....
jonny's user avatar
  • 101
1 vote
1 answer
138 views

Why does ApplyRadialDamageWithFaloff applies full damage?

For some reason it applies full damage even when actor to damage is further than 100.0f from the MainDamageSphere. What can be the problem? I'm checking for damage with the usage of overriden "...
JohnTheRipper's user avatar
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0 answers
98 views

How can I use TOctree2::FindNearbyElements to find static meshes that are near the target Static Mesh?

I successfully added all the static meshes to their nodes inside an Octree. But I can't seem to find the nearby elements. When setting up a breakpoint at ...
soembodyhere's user avatar
0 votes
0 answers
273 views

How can I change MetaHuman pose and face expression without losing everything on autosave?

I uploaded a MetaHuman in a level. Then, I want to do changes its face, body and so on, in the same fashion as if you load an animate sequence. I want to control its facial expression with face ...
M.N.Raia's user avatar
  • 101
0 votes
0 answers
64 views

Fortnite files structure - how to find quest description?

Fortnite files can be discovered with FModel. This is unreal engine project. I would like to understand how it works. For ex., I found the following record at AssetRegistry.json: ...
LA_'s user avatar
  • 101
1 vote
0 answers
110 views

How to implement SSL Pinning in Unreal Engine?

So, I am using FHttpModule to initialize my HTTP request and set different parameters to it. Like this : ...
Karan Bobade's user avatar
0 votes
0 answers
1k views

Gpu crashed or d3d device removed

fellow StackExchange community. Probably everyone who has worked with Unreal Engine 5 has had this error. In general, it is associated with incorrectly configured video card drivers. But as my own ...
Nikita Struk's user avatar
0 votes
1 answer
67 views

Several objects from another level appearing in a level that they shouldn't?

I created a project in Unreal, Top Down Character. By default, the scene looks like this: I thought of creating a main menu to take the player to the other scenes of the project I intend to do. For ...
Boneco Sinforoso's user avatar
0 votes
0 answers
35 views

How to get a scene information from Unread Engine 4?

I learn game engine development and I was interested to work not only with box and sphere meshes also with a large model with difference meshes and textures in this model. I bought a 3d model. The ...
Andrey Klimenko's user avatar
0 votes
1 answer
89 views

Mysterious light source

In 5.0.3, I removed all light objects from the project, including the skylight and any/all lightbulbs. Yet, there are two spots of light in my model, one on the floor and one on a wall. What might be ...
Eight Rice's user avatar
0 votes
1 answer
59 views

Textures only work on vertical surfaces

I'm trying to apply a megascan texture (hardwood) to a floor but it only looks right on vertical surfaces. If I apply it to a cube and rotate the cube, the texture turns weird on the horizontal faces ...
Eight Rice's user avatar
0 votes
0 answers
43 views

Display a user webcam over multiplayer session on a wall in the middle of a level?

With the media framework, it’s now quite easy to use webcam or phone camera footage directly in the game. Is there also a way to share this footage in a multiplayer game? So player A can see the ...
Apothem Da Munster's user avatar
0 votes
0 answers
235 views

Edge Shader in UE5 with Triplanar Mapping

I am designing a LEGO brick shader in UE5 and wanted to add a scratch normal map to it. But I only want that scratch normal map to apply to where there is an edge to a mesh. The material uses ...
BlenderMaster15's user avatar
0 votes
1 answer
295 views

Unreal Engine Movie Render Queue Plugin

I am developing a plugin to stylize videos and images rendered through Movie Render Queue. What I want to do now is capture the image processed by Movie Render Queue at runtime and stylize the images ...
Techpreneur's user avatar
0 votes
0 answers
736 views

Translucent material with outlines (in UE4).... How do I do this?

I have been trying to create a material like this in Unreal Engine 4.27 but I can't seem to find any resources on how to do this. The goal is to use this material on any 3D model to give it ...
FrankieS's user avatar
1 vote
1 answer
937 views

Find look at rotation with offset

I've been trying to make a function similar to "Find look at rotation" but with an offset. Imagine I have a pivot and an object attached to that pivot with some location and rotation offset. ...
Luka Glisic's user avatar
1 vote
0 answers
336 views

How to add oblique frustum (lens shift) to UE5 camera?

I want to make a game with an oblique frustum instead of a standard frustum. Unity camera has lens shift option for an oblique frustum. But UE5 does not have such thing. In this Unity document, I can ...
landings's user avatar
  • 111
0 votes
1 answer
1k views

How do I get Alpha/Transparency working with TGA files in Unreal?

I've got a file that needs to be TGA for technical reasons. In that file, I've got two boxes in the lower half, just right of center, that need transparency. One is for glass (upper, fully transparent)...
Chuck's user avatar
  • 249
1 vote
0 answers
74 views

Is there a way to modify the scene in the Blueprint editor without affecting the blueprint itself?

I'm working on a game in Unreal Engine 4 where I have a similar set of blueprints. Each blueprint exists in a scene with trees and a night sky, so I want to be able to have such a scene load by ...
DonutGaz's user avatar
  • 135
1 vote
1 answer
2k views

How to calculate screen space UV coordinates from a specific camera

In Unreal Engine 4.27 I am currently trying to create a material (shader) that maps a texture onto a quad using the screen space coordinates from a specific camera. If I am using the current active ...
Benjamin Danger Johnson's user avatar
1 vote
1 answer
1k views

WebViewControl.java:122 cannot find symbol when packaging Unreal 4 game for Android

Whenever I try to package my project for Android I get this. Z:\app\src\main\java\com\epicgames\ue4\WebViewControl.java:122: error: cannot find symbol My setup: ...
GEO's user avatar
  • 13
0 votes
1 answer
5k views

Invalid maximum heap size: -XX:MaxHeapSize=4096m

I am trying to package android project in UE4.27. And getting this I tried changing environment variable _JAVA_OPTIONS: -Xmx512M -Xms512M not worked. Where can I change MaxHeapSize, please tell me ...
GEO's user avatar
  • 13
0 votes
0 answers
324 views

For UE5 camera, how to add additional 2D transforms after perspective projection?

Octopath Traveler's camera seems to be always horizontal (All vertical lines keep parallel after projection), but the projection center is not at the center of the screen. So there must be additional ...
landings's user avatar
  • 111
0 votes
0 answers
120 views

Can’t load game correctly

I have Save/Load functionality where I use LoadGameFromSlot, SaveGameToSlot and SaveGame ...
Amazing User's user avatar
0 votes
1 answer
190 views

Alter vehicle angle to match that of ground

I am trying to align a non physics vehicle to the same angle as the floor, using blueprints in UE4.27 At first, I used normals, but this has undesired effects when going over things like speed bumps. ...
agreenleaf's user avatar
0 votes
0 answers
134 views

How do you add a timer that starts at the beginning of each level and ends when you complete the level in unreal engine 4?

So currently I have multiple levels in my game, and at the end of each level you automatically get teleported to the next level by a load level trigger, I am wondering how to implement a timer which ...
Nostradamus's user avatar
0 votes
1 answer
109 views

What kind of game is best to learn the basics [closed]

I am interested in learning Unreal Engine. What kind of game should I aim to build as a beginner which will teach me the most? Thanks.
Nazmus Saqueeb Ashrafi's user avatar
1 vote
1 answer
188 views

Can I upgrade Unreal 4.27 to 5?

I tried to get Unreal 5 directly but I couldn't, the only option on the table was unreal 4.27, can I upgrade to 5 after 4.27 or do I need to consume another 20 gigs for 5?
KiynL's user avatar
  • 111
0 votes
1 answer
2k views

Help swapping out one player character for another

recently I’ve been working on a system that would allow the player to swap out one character for another with a touch of a button. So far I’ve just been trying to focus on switching to one character ...
Hungry Moogle's user avatar
0 votes
0 answers
318 views

Can't save high score in Unreal Engine blueprints

I'm trying to make a pinball game in Unreal Engine with blueprints, but the high score does not save. You have 2 lives while playing, and after the game ends this save game function executes. The game ...
UE GameDev's user avatar
2 votes
1 answer
331 views

Porting Plugins from UE5.0 to UE5.1 source build causes DLL Registration Errors

I built UE5.1-Main from source successfully. I'm trying to port my UE5 marketplace plugins, but when I launch the editor I get these errors for all my ported plugins. I suspect it might have something ...
Tyler's user avatar
  • 123
1 vote
1 answer
490 views

Strange lighting/shadows in Unreal Engine game (shadow suddenly gets darker or lighter)

As the title suggests. I have made a level for Unreal Engine. It uses RectLights in the ceiling without any directional lighting. There is a Lightmass Importance ...
I_Keep_Trying's user avatar
1 vote
2 answers
2k views

Why is Visual studio 2022 intellisense not working on unreal engine 4.27?

I am new to unreal engine. Whenever I add a new class on unreal engine and open it in visual studio 2022 the intellisense doesn't seem to work for instance if I write #include "" it does not ...
Nomi's user avatar
  • 33
2 votes
2 answers
411 views

Is an ECS system without a traditional ECS memory layout a bad idea?

I've got a background in C++ but completely new to game dev, Unreal, and ECS. Recently, I learned about ECS and fell in love with the resulting project structure and theoretical reduction of spaghetti ...
mrg95's user avatar
  • 121
0 votes
1 answer
39 views

How to find "roll" relative to horizontal

To avoid gimbal lock, I use quaternions for my rotations. For example, to roll I use this function: ...
Olexy's user avatar
  • 103
1 vote
1 answer
81 views

Rotating an Icon On MiniMap

I'm creating a minimap for my game. There is a mission where the player has to escort an NPC to an area. The minimap shows the player, the NPC and the location. The NPC icon sends an arrow from it's ...
Dave's user avatar
  • 31
0 votes
1 answer
446 views

Unreal Engine Character Replication. Where to find out what exactly is being replicated? Is the Material replicated?

I have been experimenting with Steamworks SDK and Unreal Engine. I have managed to successfully code the connectivity part (ie. I can connect to a Steam Lobby with several players and it will then ...
I_Keep_Trying's user avatar
1 vote
0 answers
1k views

Problem rendering Custom Fonts on UE4 Text Render Component

I have imported a TTF font on unreal engine. At first I just let unreal engine create the Font asset automatically, but when I try to create a material with that font it gives me a warning telling me ...
Shirofuji's user avatar
1 vote
0 answers
27 views

UE4 - Low level calls in blueprint

I am looking to use blueprint nodes described as Low-level calls in the documentation such as this one https://docs.unrealengine.com/4.26/en-US/BlueprintAPI/Game/Cinematic/JumpTo_Frames/ but I can't ...
Francesco's user avatar
  • 111
1 vote
2 answers
3k views

Unreal Engine 4: How to select value for FName uproperty from array of FNames by dropdown list in editor details?

I have an actor class which have a FName UPROPERTY and also an array of strings loaded from config. I need to select a value from that array in editor details of that actor and assign it to that ...
Robotex's user avatar
  • 251
1 vote
0 answers
102 views

Unreal Engine 4 How to read saved player data?

I seem to have writing working fine now. But I am running into odd problems reading the data back. I want to iterate over the files so I tried this but I got an error in the log stating something ...
Jason Crosby's user avatar
0 votes
0 answers
36 views

How to calculate if a complex shadow matches a Texture?

Unreal 4.27, newbie and experimenting, will switch to 5 if supporting features are not available in 4. I have a light on the left side of the room pointed toward the right side. In the middle of the ...
JD.'s user avatar
  • 101
1 vote
1 answer
943 views

Casting from APawn* to MyCustomCharacter* ? Is this ok?

So I am still learning C++ but been using it for quite a while. But I have a function which is not working properly (separate question posted here: Calling Client RPC in order to assign a Team value ...
I_Keep_Trying's user avatar
1 vote
2 answers
1k views

Third Person Character Fall through the floor

i'm trying to get my main menu level works... but when i play from the main menu and go into the "Game"scene player will fall down throught the floor, but won't if i play directly from the &...
mirkojpn's user avatar

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