Skip to main content

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.

Filter by
Sorted by
Tagged with
22 votes
1 answer
11k views

How to install Unreal Engine 4?

As soon as I found out that Unreal Engine 4 is now free, I decided to get it in order to tinker with it. So I clicked on the blue "Get Unreal" button, signed up, and downloaded (and installed) the ...
Nolonar's user avatar
  • 947
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
21 votes
2 answers
5k views

Is it possible to use the Unreal Engine as a big C++ library, without using the editor?

I want to write a game entirely in C++, but I would like to profit from the possibilities offered by the Unreal Engine, especially in terms of graphics and physics. Nevertheless, I strongly dislike ...
Blackhole's user avatar
  • 343
17 votes
1 answer
7k views

In Unreal, what are the differences between C++'s float and FFloat32?

I have been trying to learn some deeper aspects of UE4 and while reading many examples codes and also the source base of the engine, I noticed that sometimes people (and the very source code) use the ...
Kim Shutter's user avatar
16 votes
2 answers
15k views

Do industry professionals building games using UE4 use Blueprints at all, or do they use C++ exclusively?

As a teacher on a game development module I have usually insisted that users use C++, because it is a more sought-after skill in industry, but online support and information on C++ in Unreal Engine 4 ...
Mark Green's user avatar
11 votes
2 answers
4k views

When to use C++ and when to use blueprints?

I'm trying to learn how to use the Unreal Engine. I have basic knowledge of C++. Recently I started making a Survival Horror Game as a project that I'm just doing for the learning experience. So far ...
user67599's user avatar
  • 111
7 votes
1 answer
3k views

Do I still owe Epic royalties if I am not enrolled in the Unreal Engine subscription?

I have just started using Unreal Engine 4 and I have had a very good experience, though I have left the subscription now. I've made an Android game with it and I am planning to release it, but I have ...
Tanay Karnik's user avatar
7 votes
4 answers
12k views

Do we really need quaternions? In UE4 I rotate without them

I want to experience gimbal lock to be able to understand how it happens. In lots of videos it shows that when you rotate along one axis, other axis is also being rotated and you obtain gimbal lock. ...
Narek's user avatar
  • 1,337
7 votes
1 answer
14k views

Unreal Engine 4 is now only free or open source as well?

Recently Unreal Engine 4 become free with Royalty fees. What about the code? Is it opensource or no?
Narek's user avatar
  • 1,337
6 votes
3 answers
8k views

Is there an equivalent of Unity's OnCollisionEnter() in UE4?

I've been looking for how to figure out when two objects are colliding all day. If anyone knows how to do it I would be grateful. What I really want is a similar function to Unity's OnCollisionEnter(...
user3797758's user avatar
  • 3,641
6 votes
1 answer
20k views

How can I get a reference to a object in the world in UE4?

I'm coding a simple maze game in UE4 and I have everything I wanted to implement done except having an obstacle in the scene. What I have is a simple Obstacle class ...
holyglokk's user avatar
  • 121
6 votes
1 answer
1k views

What type of networking archtitecture does Unreal Engine 4 have?

I am working on online multiplayer FPS on UE 4 with up to 16 players. I am now at the making architecture model, stage. I am doing research on possible server architecture model with respect for ...
VolodymyrNaz's user avatar
6 votes
1 answer
4k 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 ...
Joe Zarlengo's user avatar
6 votes
1 answer
641 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 ...
Ben Pretorius's user avatar
5 votes
4 answers
17k views

Why do I get a blank material in Unreal Engine 4?

When I'm adding a material to a box in UE4, the material loses its textures. I want to add this material To this After I'm trying to drag & drop the material into the scene above (like in UDK) ...
balintpekker's user avatar
5 votes
2 answers
18k views

How can I implement (almost) infinitely large maps in Unreal Engine 4?

I'm making a game where a helicopter travels around. I'd like that the environment around be as realistic as possible. For instance, since the helicopter can travel at speeds up to 200 km/h, I want ...
Aurimas's user avatar
  • 151
5 votes
2 answers
2k views

Can I use fonts under C:\Windows\Fonts for text in my game?

I'm using Unreal Engine and their UMG system which comes with only one font by default ("Roboto"). The engine allows importing new fonts so I'm wondering whether I can use the fonts already available ...
BlueSkiesYellowFlowers's user avatar
5 votes
2 answers
3k views

In a large space simulation, why is my sun light not reaching the planets?

I want to create a space simulation, but I'm facing some difficulties when I try to create a realistic sun. Currently, I've a simple Point Light inside a sphere. But for some reasons, no matter the ...
Blackhole's user avatar
  • 343
5 votes
1 answer
1k views

Importing materials from blender to UE4

So my problem is that I have a nice green glass material in blender which I imported to UE4 (4.8.1) but in the editor the material was just a simple green colour. I have no idea what I should do to ...
nanoo9999's user avatar
5 votes
1 answer
10k views

How can I make the player spawn at a specific location on the map?

I'm trying to make a game in Unreal Engine 4.8, I've got a Player Start actor in the main level and a box collision that loads a new level, but when you return to the main level you obviously spawn ...
Camo001's user avatar
  • 51
5 votes
1 answer
514 views

What does the update button in the Unreal Engine launcher actually update the engine to?

Unreal Engine 4 seems to have a very handy way of managing different versions of the engine - mainly you get to keep several copies and choose which one to launch. That said, not having used the new ...
SpartanDonut's user avatar
  • 2,937
5 votes
0 answers
785 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 ...
rraallvv's user avatar
  • 971
4 votes
1 answer
370 views

What Situations is Saving a Game to Main Memory for?

I've been reading through Unreal's 'Saving and Loading' guide: Link Within, they present a capability to save a game to main memory rather than secondary storage: I haven't found any information on ...
Natalo77's user avatar
  • 699
4 votes
2 answers
13k views

Why do I get "UObject" has no member "BeginPlay" errors?

I loaded up UE4 to work on a new project. I created two C++ classes, one for a bullet, one for a cannon. Upon loading into Visual Studio 2015 I immediately get the error: "UObject" has no member "...
Carson's user avatar
  • 95
4 votes
1 answer
440 views

Optimization for Normal maps with lots of wasted space?

I'm working on level/character assets where I'm finding that I use only very little amounts of normal mapping on them, resulting in 2048x2048 textures that are mostly blue/purple. Is there any method ...
user46642's user avatar
4 votes
1 answer
5k views

Set the LineTraceByChannel to use my custom created channel? C++

I want to use LineTraceSingleByChannel function for my SightRay component which will be used for my adventure game. I want to mark certain objects in game as 'Viewable' in Trace Channel. Then the ray ...
Krangogram's user avatar
4 votes
1 answer
4k views

Why does UE crash when I spawn a tile actor like this?

I'm trying to replicate a version of "Paper.io" using Unreal Engine and C++ as an exercise. My idea is to have an instance of an Actor (that is my "Grid class" in this case), and another Actor acting ...
user3287178's user avatar
4 votes
1 answer
9k views

How would you implement a simple strategy player controller in Unreal Engine 4?

All player controllers in the C++ game templates are not for strategy games. They all implemented so the player controls just one character. I'm not sure what approach to take when you want to control ...
Igal Alkon's user avatar
4 votes
1 answer
1k views

Rotate a rigid body not around its centre of mass

I have a rigid body (a boat) whose centre of mass is towards the front of the object. However, this makes the rotation look strange as the rudder that is turning the object is at the back of the boat ...
T. Kiley's user avatar
  • 537
4 votes
1 answer
1k views

Frame independent buoyancy using Substepping

I am having trouble with a frame independent buoyancy force using substepping in Unreal Engine 4. The original problem (which I am attempting to solve using substepping) is that when you apply a ...
T. Kiley's user avatar
  • 537
4 votes
1 answer
12k views

In UE4, how do I turn my character's body together with the camera?

I made a simple punch animation in Blender and exported it into Unreal Engine 4. In-game, the character appeared from a 3rd-person perspective, but I made it look like first-person by adjusting the ...
nirmal's user avatar
  • 111
4 votes
1 answer
2k views

How can I enable flat surface reflections in UE4 on mobile?

Could someone please tell me how do I enable reflections on flat surfaces on a mobile in UE4? I have a simple room with one directional light. I need reflections on the tables and ground planes. I ...
user346443's user avatar
4 votes
2 answers
8k views

How to display Render Target live to HUD widget in UE4

I'm making a security camera system in Unreal Engine 4. It allows the player to 'activate' the monitor, which should display the Render Target texture or the material made from it on the HUD. However, ...
Willothy's user avatar
  • 141
4 votes
0 answers
442 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 ...
Phaninder M's user avatar
3 votes
4 answers
10k views

How to create custom gravity in unreal engine and only affect specific actors?

I am fairly new to unreal engine and I would like to know how to set custom gravity in a specific point or area instead of down. For example I do not want the gravity pull to be down but more to the ...
John Demetriou's user avatar
3 votes
4 answers
221 views

At what point of Game Dev pipeline it is good idea to start adding Oculus Rift Support? [closed]

I am still in pre-dev phase - creating Assets, editing storyline, doing OOP analysis. I plan to make game in UE 4 and would like for game to have VR support. Would it be good idea to start right away ...
VolodymyrNaz's user avatar
3 votes
1 answer
2k views

What exactly is different between a string and an FString in Unreal C++?

Sorry, maybe a noob question, I did a quick google search and couldn't find what I was looking for. I have two related questions about FString. Does regular C++ Have this, or is this an Unreal term. ...
Millard's user avatar
  • 500
3 votes
2 answers
15k views

IDE cannot find CoreMinimal.h, Unreal Engine 4 course

I'm following this tutorial on Udemy about learning the basics of Unreal Engine as I start up my CS degree, and I've reached a problem where CoreMinimal.h cannot be ...
user116531's user avatar
3 votes
2 answers
4k views

How do you manage / collaborate on a project in Unreal with Developers and Designers?

We have a team of 3 designers and 2 developers with no prior industry experience working on a Unreal Engine 4 project. The designers will be creating assets & laying the scene out in the editor ...
TtT23's user avatar
  • 145
3 votes
1 answer
16k views

How can I get a reference to an actor that's already in a scene in Unreal?

I'd like to know if there is a way to get a reference to the instance of an Actor (written in c++) in the scene from a blueprint even if it's not in the scene, or at least without making a new one ...
user3287178's user avatar
3 votes
1 answer
412 views

Why does the engine crash when I POST data to a server?

I am working on communications between my game and a cloud database. I'm working on the authentication part but when I try to pass data to the server in a POST the engine crashes. If I pass in a ...
Jason Crosby's user avatar
3 votes
2 answers
5k views

How can I stop the Unreal Editor's UI from being blurry?

My Unreal Engine UI does not look sharp and is blurred on my 1080p monitor. Subsequently, the viewport is slightly blurry and edges are jagged. I have changed the setting of the viewport to "...
Computing Corn's user avatar
3 votes
1 answer
4k views

In unreal engine, what's the difference among "set global time dilation" and "set current time dilation" and "set custom time dilation"?

what's the different effect of these three functions, thanks!
TwenteMaster's user avatar
3 votes
1 answer
487 views

Merging custom c++ engine with Unreal Engine

I have my own custom C++ game engine with networking, game logic (most important) suitable for type of games I am working with etc. I find it harder and harder to keep up with other engines in case ...
PolGraphic's user avatar
3 votes
3 answers
688 views

Drawing roads on heightmaps

I've been running into walls for the past week or so on my toy project in UE4. My goal is to draw procedural roads on a procedural landscape (eventually getting to intersections and buildings). The ...
David Titarenco's user avatar
3 votes
1 answer
493 views

UE4 How to Avoid Boundary Seams with Multiple Refractive Meshes

We use multiple box meshes to create our game world in Unreal Engine 4, but we also use those boxes with translucent/sss materials with refraction. The problem is there are seams between those boxes ...
sirjofri's user avatar
  • 131
3 votes
1 answer
5k views

How to export unreal assets in a package like in unity?

Unity has an asset exporter that export it into a .unitypackage format. This ensure that the prefab has all the links to its child assets. In Unreal 4, its migrate tool allow for moving of assets. ...
DarkDestry's user avatar
  • 1,441
3 votes
1 answer
16k views

How do you spawn a component from a class in UE4?

Background I'm working on a shooter game at the moment and I'm trying to spawn an Actor Component for the weapon currently in use, in order to have less ...
Sturlen's user avatar
  • 448
3 votes
2 answers
2k views

Ue5 AI MoveTo does not work

I have been having problems working with AI MoveTo and created a very basic version in the hopes of finding the problem: As you may see, I have one single character with the default skeletal mesh and ...
Pumpkin's user avatar
  • 133
3 votes
1 answer
2k views

How to support importing .uasset files in game for content creators(UE4)?

I would like to support importing clothes(as SkeletalMeshes) and props(as StaticMeshes) as uasset files into game for content creators, which obviously have not been packaged with the game. Basically ...
formatc2013's user avatar

1
2 3 4 5
14