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.

215 questions with no upvoted or accepted answers
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6
votes
1answer
523 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
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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
634 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
132 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
2k 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
70 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
203 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
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0answers
298 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
175 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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1answer
52 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
34 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
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0answers
32 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
145 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
445 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
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0answers
686 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
231 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
837 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
22 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
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0answers
43 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
27 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
65 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
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0answers
12 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
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0answers
14 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
37 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
32 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
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0answers
136 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, ...
1
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0answers
21 views

What is the better form of movement for a vehicle that the player is inside of?

I am using unreal engine 4 to make this. Basically I have a submarine that the player can move around in and can control the submarines movement within an ocean. However I don't know the best way to ...
1
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0answers
114 views

Generate road mesh from a graph

I want to generate a mesh for the entire road network(later I'll probably want to split it into chunks but for now this will do). My road network is stored as a ...
1
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0answers
39 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 '...
1
vote
1answer
268 views

UE4 - Want my landscape to be unlit BUT catch shadows from objects

Here is my problem, I have a landscape that was created through photogrametry. I already has strong shadows on it's diffuse texture so I don't want it to be affected by my virtual sun. What I do want ...
1
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0answers
63 views

Unreal Engine Niagara Write to Texture or Data Structure

In the Niagara system, is there any way to write to a texture? I want to write the position of each particle into a texture. So the 2d grayscale texture has its intensity as the number of particles in ...
1
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0answers
76 views

Unreal Engine Niagara Particle Velocity Based on Density of Particles?

Goal: Simulation of particles where each particle moves to the direction with the highest density out of candidate directions. I'm not sure how to do the following operations using UE Niagara. How ...
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0answers
357 views

UE4 - UProceduralMeshComponent - texturing issues

I am having a lot of trouble texturing a procedural mesh in UE4. I am using perlin noise from Accidental Noise Library with PolyVox to generate randomized marching cube terrain. Accidental Noise ...
1
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0answers
29 views

UE4 | Glitch with movable cube

I've been trying to make something so that when you press a button, a cube appears. Problem is, whenever I jump on said cube, it sends me flying away so far my character gets deleted (not a game ...
1
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0answers
85 views

Using MCTS in Unreal Engine

I have been making a turn-based board game in UE4 and have come to the point of making a first pass on the AI. I planned to use Monte Carlo Tree Search but this requires you to make (at least) one ...
1
vote
0answers
108 views

How to make a sprite above my character appear on the minimap attached to the floor?

I have a project where I made 2 minimaps. One of minimaps is linked to the character of my project and the other to the floor: As I already said in the title of the question, my character has a ...
1
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0answers
16 views

Elements of a widget blueprint do not appear if I click on simulate

I made a widget that contains 2 minimaps and 2 texts related to a character's variables. When I click the play button (Selected Viewport) everything happens fine: Focus where I circled in pink. It ...
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0answers
24 views

Change text of bus destination sign at runtime

I have rigged a bus in blender and imported it into Unreal. Now I want to change the text of the destination sign at run time. How can i do this?
1
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2answers
1k views

How can I edit collisions in Unreal Engine?

I made a concave house model. When I import it to Unreal Engine it generates a simple box collision that covers the full mesh. I need a collision that only covers the walls. How can I generate one or ...
1
vote
0answers
50 views

Is it possible to connect an external source machine to Live Link?

I would like to be able to connect multiple external machines to Unreal Engine via Live Link in order to stream solved motion capture from one of the Vicon run-time solvers/retargeter (i.e. Pegasus). ...
1
vote
0answers
106 views

How to make only-head rotation in UE4?

I've made a character, attached a camera to it and setted input. But now i want only character's head to rotate with mouse, but not a whole character (player capsule rotates with Q and E keys). I ...
1
vote
0answers
236 views

Understanding UE4 OpenGL contexts

Recently, I was browsing the UE4 source code. I was especially interested in the OpenGL implementation on Windows. The OpenGL "Dynamic RHI" (as they call it) implementation can be found in the ...
1
vote
1answer
2k views

Creating a real loading screen between levels in Unreal Engine 4

I'm trying to create a loading screen to pop up between levels in Unreal Engine 4. I want to have a traditional loading screen such as the loading screen in Skyrim, where the player presses play and ...
1
vote
0answers
301 views

Dragging and dropping sword in unreal engine 4

I am developing a 2d game using unreal engine 4 in which the user drags and drops a sword.I want the sword to follow the position of my finger.At the moment, when I drag the sword, it moves at an ...
1
vote
1answer
536 views

UE4 Drag and Drop: Place PaperCharacter Over Image Widget

I'm working on adding drag and drop functionality to my game. I have it working with the exception of I can't get what I'm dropping to be placed where it was dropped. I've tried a number of different ...
1
vote
0answers
628 views

Large Scale GIS in a AAA-Quality Game Engine? (Unreal, Cryengine, Unity, Etc.)

I am working on a new simulation project that requires large scale, real-world terrain and imagery (GIS). By large scale, I mean that I would like to support databases that cover something on the ...
1
vote
0answers
325 views

Widget text is a different color in game than in engine

I have a widget blueprint to show a main menu. Everything was fine until I recently added a new button in the menu to enable cheat codes. The problem started when I noticed when I changed the color of ...
1
vote
0answers
86 views

How to make community made levels compatible with every game update, without re-cooking the levels?

Community made maps made in UE4 (BSP & simple assets), downloadable via Steam Workshop, is one of the main features of our hypothetical game. The maps should continue to be compatible regardless ...
1
vote
0answers
683 views

Unreal: Y-Axis boundary on a Camera Bounding Box

I was wondering if I could get some help with modifying a Blueprint I'm currently using for a project in Unreal Engine. I am currently attempting to make a side-scrolling platformer game and I'm ...
1
vote
0answers
700 views

What include first if I want to comply IWYU(Include-What-You-Use) in Unreal Engine 4?

I read this article. https://docs.unrealengine.com/latest/INT/Programming/UnrealBuildSystem/IWYUReferenceGuide/index.html It says "IWYU mode is enabled by default for the Engine and Engine plugins." ...

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