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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votes
1answer
564 views

HumanIK Z axis Up in Maya for Unreal Engine

I am pretty stumped! I want to use HumanIK in Maya to throw together some prototype animations for my game that is being developed in Unreal Engine 4.7 The issue is that Unreal requires Z axis to be ...
5
votes
1answer
2k views

A script isn't showing in the Content Browser

Just to set the tone, I'm very new to game development. I'm currently taking an online video course for Unreal Engine 4 that required me to create a C++ script. After I created the script and it ...
5
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0answers
677 views

How to get UE4 to correctly put my bundle identifier for iOS projects?

Each time I create a new project UE4 adds a generic bundle identifier to the iOS platform settings, that I always have to change to com.myname.[PROJECT_NAME] in ...
3
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0answers
174 views

How can I make a tendril flame like aura visual effect?

I am a bit new to UE4 and I'm trying to get a tendril flame like aura like the picture below. Does anyone know how I would go about this? Should I use post processing or particles?
3
votes
1answer
3k views

Deproject Screen To World Coordinates (Unreal Engine 4.15)

I am working on a small game in Unreal Engine 4.15 using blueprints only and encountered a behaviour I don't understand. The game is based on the Top Down Example. As I'd like to teleport an actor ...
3
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0answers
77 views

Many-to-one and feedback loop connections allowed in UE4 blueprints

Under what circumstances is it allowed to connect: Multiple execution output ports (those with the blank triangle) in different branches to one single execution input, effectively merging the ...
3
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0answers
223 views

Implementing Browser in Unreal Engine 4.10

I am looking to add some oauth to a game I am working on. I can get the user auth to work in the browser that comes with UE4, however there is not any capability to detect changes to the currently ...
3
votes
0answers
332 views

Adjust the Camera Viewport Rect in Unreal Engine

Am new to Unreal Engine. I want to adjust the Camera Viewport Rect so that the camera will render to half of the screen. This is achieved in Unity by changing the Camera Viewport Rect property. How ...
3
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0answers
181 views

Recognize pattern in 3D building environment

I'm currently developing 3rd person building game (as bacheleor thesis). I need to recognize constructed patterns co I can mark corresponding structure as some building (so player can start using that ...
2
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0answers
29 views

Tweak brightness of widget in UE4

I would like to make an interactable monitor in Unreal Engine 4.26. I am using the default material for widgets as you can see in the image below: The texture I would like to show is: When I drive ...
2
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0answers
364 views

'CoreMinimal.h' file not found when building on Unreal Engine on Mac

I'm trying out C++ on Unreal Engine 4.25 on Mac. If relevant, my Xcode version is 12. When I try to compile, there's an error: 'CoreMinimal.h' file not found. I've ...
2
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2answers
157 views

How to render thin glass with proper refraction?

I want to render thin bumpy glass with refraction. But it offsets too much(look at the black frame of the glass). Looks thick. How to do thin glass refraction properly? Or is it possible to exclude ...
2
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0answers
36 views

Any clue to create natural shadow like this?

I only use skylight with hdri map for overcast lighting. The corner isn't dark enough compare to other's work. Any clue to achieve this natural falloff soft shadow? What I want What I get My world ...
2
votes
0answers
247 views

Changing default folder structure of New Project in Unreal Engine?

I wonder is there a config option to change the default folder structure of a new project. So for example when I create a new project there is already a folder for 'Blueprints', 'Maps', 'Audio' and '...
2
votes
0answers
40 views

Displacement map to create terrain

I am trying to figure out the best way to create a procedurally generated terrain at runtime in Unreal Engine 4. For the moment, my idea is to generate a heightmap and apply it to a plane as a ...
2
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0answers
155 views

In UE4's Blueprints, how do I activate something when the player looks at it?

I want to make an object that activates when the player presses a button, then looks at it. How can I do this using Blueprints Visual Scripting?
2
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0answers
476 views

UE4 Gear VR won't "lock to HMD"

the problem: "Is Head Mounted Display Enabled" seems to always return false on samsung Gear VR. so the camera is not locked to the HMD and it will use the default camera's not the ones for hmd. the ...
2
votes
1answer
563 views

How to use PhotonPeer in Unreal Engine 4.8

I'm trying to implement PhotonPeer in Unreal Engine 4.8 but I'm stuck at the connect function. I need to provide an AppId, but nothing I try is accepted by UE4. Here's my code: DALGameInstance.h <...
2
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0answers
726 views

Adding smooth round Bézier curve corners in unreal editor?

Unreal Editor offers rectangular and round geometry. It also offers boolean operations. I can make a smooth corner by playing around with cylinder and boolean operations. I really would like to make a ...
2
votes
1answer
263 views

Ledge Detection with Plane Intersection?

i am working on a ledge climb system and I am currently refactoring it to make it more reliable. I am tracing with a sphere towards infront of my character. If it found something, I trace downwards. ...
2
votes
1answer
1k views

Emissive material not casting light on itself in Unreal

I have a static mesh that has an emissive material applied to part of the mesh. The emissive material successfully cast light to surrounding objects. However, the face of the mesh with the emissive ...
1
vote
0answers
7 views

UE4 Cannot find moved files causing a crash when opening a level

Moved blueprints cannot be find in new location, Unreal Engine still searching them in old folder. This cause the editor to crash when trying to open a specific level. The log error is the following: <...
1
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0answers
49 views

Unreal Engine 4.26: How to serialize and load the array of custom UObjects (TArray<UObject*>) in C++?

I have a UProperty in struct which is a TArray<UCoverInfo*> where UCoverInfo is inherited from UObject: ...
1
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0answers
45 views

Rendering 3D items in a GUI in Unreal Engine

I have various buildable 3D items in my game like so: These are just a few, but there will eventually be hundreds of them. The models of each of these items are displayed to the user as part of a ...
1
vote
0answers
25 views

3D projection, Similar to SceneCapture2D

I would appreciate some help, I was wondering if it was possible in UE4 to do a "3D projection" of a scene, Similar to what SceneCapture2D does, but the viewer can see a 3D scene (with a ...
1
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0answers
62 views

How to create a modular environment that doesn't repeat itself?

I am creating a modular environment for a game so I have walls repeating quite often. What I want to achieve is to have the same walls with a different look, even though they are the same mesh sharing ...
1
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0answers
62 views

Unreal How to Feed Images into Open CV Lens Distortion Calibrator

I'm currently trying to use the OpenCV Lens Distortion plugin that comes installed by default with the Virtual Production example in Unreal 4.27 to try and create a camera undistortion texture for my ...
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0answers
197 views
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0answers
103 views

Unreal 4 - Static mesh has strange, glitchy shadows?

The first image below shows my mesh in Blender with the Blender lighting, and the second image from inside UE4 has this weird shading on it. Is there any way to help it look like the first image? I've ...
1
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0answers
14 views

Is it possible to automate the export of videos from Unreal Engine so that assets are swapped out dynamically?

Let's say I have an unreal project that features a character in an environment. I want to use Unreal to cycle through characters and environments and create a number of videos. Let's say for instance ...
1
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0answers
156 views

Underwater Post Process Using Unreal Engine 4 Water Plugin?

I'm using a custom water body from Unreal Engine 4's water plugin and I'd really like the screen to turn blue as soon as the first person camera goes underwater. I tried putting just a normal post ...
1
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0answers
24 views

How do I prevent my umap from being modified at every save?

I'm using UnrealEngine 4. Every time I save my files, my .umap file seems to be modified. I can basically generate an infinite stream of commits by just clicking <...
1
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0answers
46 views

How to connect a UPhysicsConstraintComponent of an AActor to an FKSphylElem (capsule body) of a ragdoll?

I'm trying to connect an Actor's UPhysicsConstraintComponent to a capsule body of a ragdoll. The reason I do it this way, instead of just using sockets on the ...
1
vote
1answer
153 views

Using UPawnMovementComponent to control a Pawn with Keyboard sharing code between Pawns

I've just started to learn Unreal and reading the tutorial Components and Collisions I have found that they use the UPawnMovementComponent to control their ...
1
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0answers
135 views

Control rig sequence is not in UE4 menu

In the Unreal Engine docs, it is mentioned that, in order to create a Animation Sequence using the Control Rig, it is possible to create a ...
1
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0answers
28 views

Creating an external tool to edit Unreal project optimization settings

INTRO I am creating a C++ app that will help users to set up optimization settings in the Unreal game engine. I want to let the program make all this work on its own. This application is being written ...
1
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0answers
557 views

How can I generate mesh distance fields at runtime on a procedural mesh in unreal engine 4.26?

I am building a simulation game that and I that allows the player to create procedural buildings rather than placing static scenery items. If possible, I would like to write a shader that can take the ...
1
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0answers
111 views

Unreal Visual Studio 2019 taking forever for tellisense

I'm using the latest unreal engine and visual studio 2019. I'm having a problem where intellisense can take way too long. This usually happens when I have just opened the project inf VS 2019, but ...
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0answers
483 views

Unreal Engine 4.25.4 - CreateDefaultSubobject inside a child component attached to an actor loses values in blueprint editor

I have the following actor: ...
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0answers
82 views

How to make Unreal save assets in 3-file style?

I'm trying to play around with some code to explore UE4 maps, but it assumes that every file is actually multiple files, with the asset accompanied by a .uexp file ...
1
vote
0answers
79 views

Skeleton bone in incorrect spot in-game yet, blender rig, skeleton mesh and physics asset are all correct and behave properly

I've made a custom character and rigged it in blender. Then exported/imported into ue4. It behaves properly in the PHAT and the skeleton mesh looks fine and it all behaves properly in the simulations. ...
1
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0answers
56 views

Can I combine 2 UnrealEngine forks?

I am using Daz Gen 8 characters and clothes in my project. After I read this I decided to use a fork of UE4 which uses Dual Quaternion Skinning. Basically if you use Daz characters under UE4, they ...
1
vote
0answers
135 views

Gaps in custom body parts export for Daz Genesis 8 character

I am trying to attach a custom mesh to a Daz Genesis 8 character, and export it into Unreal Engine. I use a custom script (namely: goldenpalace - NSFW); it exports both mesh and morphs... but it ...
1
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0answers
33 views

How can I allow player-created content to add morphs to Daz Genesis 8 characters(UE4)?

We use Daz Genesis 8 characters in our project. Content creators would load their morphs from Daz to our game. We would like to add these morphs to our characters so they can be modded, edited and ...
1
vote
1answer
572 views

UE4 Blueprint Multiplayer Spawning Issue

I'm attempting to copy/modify the MultiplayerShootout project's multiplayer functionality for my own project. I'm running into issues when Player 2 joins a running session though. Finding it very hard ...
1
vote
0answers
46 views

Navmesh bound in ue4 topdown and third person template

The Topdown template has a navmesh volume to build walkable area, if remove that volume, the character will be unwalkable. However, the third person template has no such thing, but the character ...
1
vote
0answers
36 views

Overriden Event does not execute on Unreal

I've been learning Unreal Engine through this tutorial and I am having an issue with overriding an event I created on C++ using blueprints. So here is what I've done: I created a class called ...
1
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0answers
61 views

Using behavior tree with custom pawn and movement component

I am trying to have a custom APawn along with its custom UPawnMovementComponent and AIController, to move to a location using the MoveTo node of a behavior tree. I've followed the code in the engine ...
1
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0answers
34 views

How can I realistically simulate audio for multi-sensor processing?

I am performing audio simulations in Unreal Engine 4. Ideally, I need realistic audio propagations. So microphones at multiple locations will experience propagation delays related to their distance ...
1
vote
0answers
660 views

Unreal editor warns that Xcode is not installed on MacOS 10.14

I'm running MacOS 10.14.6. When I launch Unreal v4.25.0, I get the following warning: Xcode was not detected on this Mac. Metal shader compilation will fall back to runtime compiled text shaders, ...

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