Unreal Engine 4 is a professional suite of tools and technologies used for building high-quality games across a range of platforms.
18
votes
1answer
6k 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 ...
14
votes
1answer
811 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 ...
6
votes
1answer
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 ...
4
votes
1answer
167 views
When to use C++ when to use Blueprint? Unreal Engine
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 ...
4
votes
1answer
111 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 ...
4
votes
1answer
151 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 ...
3
votes
1answer
113 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 ...
3
votes
1answer
3k 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 ...
2
votes
4answers
136 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 ...
2
votes
2answers
839 views
Can Unity 5 or Unreal Engine 4 do computationally identical physics simulation across platforms?
In order to use certain approaches to multiplayer physics, it requires that the clients calculate exactly the same values for physics simulations. That "exactly" is a very big word here and goes all ...
2
votes
1answer
179 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 ...
1
vote
2answers
385 views
Does PBR mean only one, right technique to view 3D scenes?
For example if I call Unity 5 render pipeline a PBR (Physically-Based Rendering) and Unreal Engine 4 render pipeline as well PBR, does it mean that the same model with the same PB textures will be ...
1
vote
2answers
86 views
What exactly is the difference between Unreal Development Kit and Uunreal Engine 4? [duplicate]
I want to start learning game development and I would obviously come across this tool. So every where I went people mentioned Unreal Engine 4 to be a viable choice, I've tried a bit of Unity and now I ...
1
vote
1answer
443 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?
1
vote
1answer
1k 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 which is a child of an Actor class.
...
1
vote
1answer
57 views
How to get the 3D location of a click in unreal engine 4?
I'm trying to do a board game in unreal engine 4.
I've set up pawns and a board actors. However, I would like to be able to decide on which case of the board the player clicked. The board is one ...
1
vote
0answers
71 views
Create the sun light in a large space simulation
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 ...
1
vote
2answers
148 views
Unreal Engine for 2d in c++ [closed]
I was about to start my journey on unreal engine but currently all of the tutorials we're all about blueprints in 2D games. I really want to make 2d games since I am not good at 3d (not yet). My ...
1
vote
1answer
44 views
Computing Normals for a displaced material
Disclosure: cross-posted on Unreal Answers, thought was sufficiently general for GameDev.SE
I am currently rendering a displacement texture and, separately, a normal texture for my ocean. Is there a ...
1
vote
0answers
57 views
Unreal Engine 4 Error 2738
I am having trouble installing UE4 on my computer. I keep getting Error 2738 as I start the installation and can't find a fix. Even Microsoft Fix It 50842 won't work.
I've attempted to re-download ...
1
vote
0answers
116 views
How is the Unreal rendering pipeline implimented? [closed]
I know this seems like a very broad question, but i am just interested in getting to know how the Unreal engine's rendering pipeline looks like, specially how it handles meterials, different types of ...
1
vote
2answers
408 views
Unreal Engine 4 - Blank Material
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 ...
0
votes
2answers
83 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 ...
0
votes
2answers
103 views
Endless level support in modern engines? [closed]
Do any of the "next gen" engines support endless 3d levels?
The general idea for my game will require the ability to stream a level seamlessly (no loading screens), similar to games like for example ...
0
votes
2answers
63 views
How can I get the “SelfActor” in OnBeginActorOverlap?
The signature it takes is
void ( AActor* OtherActor )
However, The actor that is handling this event is not involved in the overlap. How can I access the actor that owns this delegate? Assuming I ...
0
votes
1answer
68 views
Why aren't all public methods BlueprintCallable by default?
Considering the entire point of public/protected/private encapsulation is to abstract the class so it's easy to use, why does the programmer also have to decide if a method is callable from ...
0
votes
0answers
32 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 ...
0
votes
1answer
35 views
Calculating the illumination level of an object
In my (UE4) scene I have an object and several (point) light sources. The object can move around, getting closer and away from all those light sources. Now I need to calculate for each light source ...
0
votes
0answers
24 views
Unreal Engine 4 Line Trace Error
This is the error that I am currently facing:
PlayerPawn.cpp.obj : error LNK2019: unresolved external symbol "public: bool __cdecl APlayerPawn::Trace(struct FHitResult,class AActor *,struct FVector ...
0
votes
0answers
51 views
Bringing over OpenGL code to unreal engine?
So I've been developing games and apps in C++/OpenGL for a while, and am thinking of starting to use Unreal Engine for many things.
I've built up quite the huge libarry for UI / rendering related ...
0
votes
1answer
47 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 ...
0
votes
1answer
206 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 ...
0
votes
1answer
135 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
// ...
0
votes
1answer
35 views
Unreal Engine 4 Point Light Limiters..?
I've noticed through the first two tutorials I've done that Point Lights begin entering the viewport with red x's on them. When I build those don't turn on. It seems to be implying some limit to the ...
0
votes
1answer
83 views
Cannot add key in matinee for static meshes (UE4)
My problem is the following:
I was trying to make a sliding door based on a video tutorial, I had the static mesh, which was the door itself, and I added a Matinee for that door, so I went 'Add New ...
0
votes
0answers
46 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 ...
0
votes
0answers
119 views
Reading Color data from UTexture2D in UE4
Here's my code:
// get RenderTarget2D
static ConstructorHelpers::FObjectFinder<UTextureRenderTarget2D> TargetObj(TEXT("/Game/Textures/RenderTexture"));
// generate a UTexture2D
CameraTexture = ...
0
votes
0answers
220 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
265 views
Do you need Visual C 2013 to compile Unreal 4?
Do you need a specific version of Visual C to compile Unreal 4? If so, why?
I read in a lot of places:
Please make sure you are running Visual Studio 2013 Professional or Visual Studio Express ...
-4
votes
1answer
53 views
When and how often does Epic charge me royalties on my game?
I want to know about that 5% royalties that Epic charges for the Unreal Engine if I sell games above $3000.
What about if my game just made $300? Do I still need to pay 5% royalties to them? And how ...
