The Unreal Engine. Not to be confused with the free UDK.

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23
votes
2answers
14k views

Which Unreal Engine 4 project files can I ignore in source control?

I want to put an Unreal Engine 4 project under source control with git. (I know the editor has Perforce and Subversion support, but I don't care for those.) What folder and files do I include in the ...
11
votes
6answers
20k views

Unreal Engine 3 vs id Tech 3 vs Unity [closed]

I'm trying to decide which engine I should start using to try to start building a game in. I had chosen Unity, but upon hearing that Unreal Engine 3 had just become kinda free to use, I found myself ...
9
votes
2answers
258 views

How to determine lowest PC requirenments for my game to run

so I've created my first game in UE4 (4.9.2 version) and want to publish it. But i really don't know how to determine lowest possible environment my game runs on.Also I am unsure what other files ...
7
votes
3answers
3k views

Questions about rendering access in UDK

I also asked about this over on the UDK forums, but haven't had much luck getting any responses. Basically, I have some experience with UT3 modding, but I'm just getting started with the UDK, and I ...
6
votes
1answer
504 views

How are the Unreal Development Kit (UDK) and Unreal Engine 4 (UE4) related?

I'm thinking of learning Unreal Engine 4, but it costs money, and I want to try and keep costs as low as possible while I'm learning. In contrast, the Unreal Development Kit is free. How similar are ...
5
votes
3answers
4k views

Push and damage player pawn when hit by rotating pawn? (UDK)

I'm working on a game in which the player runs around a level themed as a pinball machine. There are flippers that react to the presence of pinballs by flipping (as one would expect pinball flippers ...
4
votes
1answer
602 views

Should I be concerned about assets being accessed by dumping VRAM?

I have heard many people tell me that a user can dump the VRAM on their GPU and get all the images in my game. Including all "Streamed" images. This includes most of my Menu graphics. How would a ...
4
votes
5answers
31k views

How can the Unreal Development Kit be used with Android?

I've read the UDK will support Android development, I checked the download page on the site and found nothing related to Android. also read that Dungeon Defenders Android game was built with Unreal ...
4
votes
3answers
1k views

Do I have to compile Unreal 4's source myself in order to make games with it?

Now I understand the need for this if people want to make modifications to the engine itself, but if I want to use the engine as is and just program games with it, do I need to do all this? I figured ...
4
votes
1answer
925 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?
4
votes
1answer
3k 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. ...
4
votes
2answers
2k views

Unreal Engine 4 — Casting [closed]

I am currently developing my first classes in Unreal Engine 4. Coming from using UScript extensively, I'm getting a little bit confused by how typecasting works in pure C++. More specifically, ...
4
votes
4answers
11k views

Move the location of the XYZ pivot point on a mesh in UDK

When working with any mesh, you get an XYZ point somewhere on it. If you just want to move the mesh in any direction, it doesn't matter where this point is located. However, I want to rotate a door. ...
4
votes
1answer
187 views

How to reduce color space in a post-processing material in Unreal Engine 4

I'm trying to get an old-school Quake 1 look going in UE4. I am currently using this blueprint in order to get a retro style large pixel filter. In game (might need to zoom in to see the ...
4
votes
1answer
983 views

How can I place the player into a 360° video in UE4?

I have a 360° video (6 separate videos stitched together into a panorama) with a first person view walking through an environment. I would like to put this in a game engine such that the actor can ...
4
votes
0answers
116 views

Can a sprite be rendered with thickness in Unreal Engine?

Is there a convenient way to have a 2D pixel art image with transparency (not partial) rendered with a thickness in Unreal Engine? Paper2D does exactly what I want, except it's a flat plane. I'm able ...
4
votes
0answers
541 views

Why are god objects so common in game programming? [closed]

This is a bit of a philosophical question. Excuse me if it's out of place here. Most modern games developed in C++ use (or at least purport to use) an object-oriented approach. A common axiom of ...
3
votes
2answers
4k views

Unreal Engine - Scaleform - How do I capture a button click event?

I'm new to Unreal Development. In a nutshell, how do I create a button, install it in a basic game, and capture the button click event?
3
votes
1answer
4k views

How to get started with Unreal Engine for iPhone? [closed]

OK i have decent amount of knowledge of C++. I want to make cool games for iPhone using unreal engine and I have access to UDN. But everything seems cluttered on UDN. I have downloaded source from ...
3
votes
1answer
157 views

Why does the X Y Z translations now rotate along with my static meshes?

So I was making a map for UT3, using the Unreal 3 Editor provided, and all was going well. However I was doing some work with InterpActors and Vehicle Spawners, when I must have hit a key by mistake ...
3
votes
1answer
442 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 ...
3
votes
1answer
2k views

How to make a gaussian blur effect in UDK

I want to make a plane shape (surface) that have a gaussian blur applied to it and this plane is transperant, so all objects behind it looks like they are having a gaussian blur effect.
3
votes
0answers
28 views

UE4 - Viewport mouselook always on

Does anyone know how to set mouselook to always on instead of having to click and hold the RMB? I would press and hold a different hotkey to "disengage" mouselook and allow object selection. I was ...
3
votes
0answers
134 views

How does Visual Studio integrate with Unreal Engine better than Code::Blocks does? [closed]

Background: I want to start using Unreal Engine 4, but I'm not sure which IDE I should use. I've narrowed it down to Code::Blocks (which I want for a couple good reasons) and Visual Studio 2015 (which ...
3
votes
1answer
507 views

Deleting Objects Before Export from Maya Causes .PSK to Crash UDK on Import

I'm using Maya 2008 Complete and 03/11 build of UDK as well as 07/10 build (haven't got around to installing newer version on other computer). I am using ActorX to export. I have a character that I ...
2
votes
2answers
809 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 ...
2
votes
2answers
207 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 ...
2
votes
1answer
58 views

How to create a looping or spherical world?

I wish to create a 3D first person world, in which the player, once they reach one end of the map are unknowingly transported back to the opposite end, or a spherical world with a surface where the ...
2
votes
1answer
52 views

Unreal Engine Player Quality

I had to force Unreal to use my integrated graphics card because VR wasn't working with my NVidia card. When I did this, the framerate dropped terribly and it popped up a dialogue "Frame rate's bad, ...
2
votes
1answer
313 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 ...
2
votes
1answer
183 views

How to avoid gimbal lock in Unreal Engine (c++)?

I created an orbit camera (sometimes called turntable camera; similar to the one with the "use UE3 orbit controls" setting in a static mesh view). I attached the camera to a USpringArmComponent with ...
2
votes
1answer
148 views

Need help with creating a stun gun. (Unreal Script)

I am fairly new to the programming world. I am currently at College and one of the tasks I need to do is create a "stun gun" or "freeze gun". Basically when you shoot a target (other player) i want it ...
2
votes
1answer
2k views

Unpacking UE4 .pak's?

Is there any way to properly unpack/repack resources of UDK-based games (.pak files)? . From what I've tried already, gildor.org's viewer seems to skip/ignore these .pak's (also, UDK, which is UE3 ...
2
votes
1answer
148 views

Accessing the command line from in-game?

Is there a way to interact with the command line (Linux/Windows) from in-game using a game engine such as Unity or Unreal? I would like to have the user be able to jump on a console or even just ...
2
votes
1answer
431 views

UDK Fixed AIController / Pawn Height

[I already asked this question on the UDK forums, without much success though.] I'm using a class derived from AIController to control my pawn in RTS-style. My problem is that the pawn does not have ...
2
votes
2answers
684 views

How can one access the depth buffer for Unreal Tournament 2004?

I'm looking for a way of getting depth buffer data for a virtual 3D sensor. Currently the method used is raycasting (implemented in UnrealScript), but I want to use the depth buffer data instead for ...
2
votes
1answer
652 views

Unreal Development Kit - What is a good method for accessing a relational database file?

I'd like to use a SQL Express file or something similar for a UDK demo. Is there a standard method for accessing data in a local relational database file? I understand that the best method may ...
2
votes
2answers
865 views

How can I run native code (in a DLL) from UnrealScript in UT/UE1?

I'm seeking an example showing how to create a DLL that can be called from UnrealScript in Unreal Engine 1 or Unreal Tournament.
2
votes
1answer
203 views

Should I make game engines to be a good “game programmer”, or is it more important to build games with Unity/Unreal? [closed]

Do I need to make game engines to be a good "game programmer" in general, or is it more important to build games with Unity/Unreal and learn coding along the way or both? I am going into a Computer ...
2
votes
0answers
33 views

5 Examples of game Development technology helping/using movie animation technology and vice versa [closed]

I wish to have information on the technology of game development say Unreal being used in the movie industry. I also wish to have information on the technology of movie industry being used in the game ...
2
votes
1answer
169 views

How to disable camera moves (mouse drag) in an Unreal Engine editor plugin?

I tried to override FEdMode: virtual bool DisallowMouseDeltaTracking() const override { UE_LOG(LogTemp, Warning, TEXT("do not allow mouse delta tracking!")); return true; // I also tried to ...
2
votes
1answer
183 views

How to get the mouse events in an unreal engine editor plugin?

I would like to react to user inputs in an editor plugin, how can I do that? In a game I can use a custom Pawn or a custom PlayerController but how can I do it in the editor?
2
votes
1answer
459 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 ...
2
votes
0answers
163 views

hosting a windows game on a linux server [closed]

there! I am currently working on a game on Unreal 4, and although im still in early production(barely any code written, mostly visual assets at this point), i want to ask this now, so that i know how ...
2
votes
2answers
607 views

How do I Rigidbody.AddForce(Vector3) in Unreal Engine?

I am coming from the Unity Engine, and trying to get my feet wet with Unreal Engine 4.8.x. I want to add a one-time force to an object. To accomplish this in Unity 5, I would use: void Start(){ ...
2
votes
0answers
160 views

How can I go about testing games on a console

I was wondering how I could play a game I've made on a console (PS3). I don't want to sell it or anything I just want to test it for now, also do I still have to do that whole registration thing to do ...
2
votes
2answers
175 views

What exactly does Unreal Engine 4's Class Wizard do?

I know "it adds classes to your project" and "creates boiler plate code for you" but what does that actually mean? Does it do anything besides properly generate your .h and .cpp files for you?
2
votes
0answers
102 views

Where are the logs created by Unreal Frontend? [closed]

I am trying to read errors generated by a build and cannot locate the log file. Which directory is it in?
2
votes
0answers
338 views

HUD and score have gone missing in UnrealScript [closed]

I am a student at Full Sail so I don't want just the solution; I want to understand the problem. I am working from tutorial videos where we are supposed to have a HUD, a score, and a timer. When I ...
2
votes
0answers
860 views

UDK HUD problem [closed]

I'm trying to add a new element to the HUD, it's supposed to be a compass that should function like a minimap. I've added this code to the main hud.swf: var DcompassContainer:MovieClip = ...