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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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2answers
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Add logic if Shift is pressed nothing to do if not speed=100 to my BP

I have followed tutorial on how to make 3rd person game but I cant figure out how to implement logic if Shift is pressed nothing to do and if its not set speed to be some value lets say 100
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1answer
19 views

Why is my mesh outside its collision component grid?

I've created a blueprint (well, two of them, as a test since the first one wasn't working right) with an sphere component around a mesh, as in the picture: As you can see, the mesh is well placed ...
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0answers
21 views

Smooth network movement lunge (UE4)

I am working on a melee in Unreal Engine 4 that lunges towards an enemy until it reaches it and applies damage. I have tried various approaches to get the movement looking smooth on the local client. ...
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1answer
30 views

Unreal Engine Size on Disk

I want to install Unreal Engine 4 from the epic game launcher but I have the following problem: If I want to install the engine after about 50% it says I don't have enough space on my disk, and if I ...
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1answer
25 views

Modular weapon in UE4 editor

I want to create a modular weapon system. I already got most of it working, but I wonder how to make an improvement. Weapons in my game have different firing modes (semi and auto) and "bullet" modes (...
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1answer
34 views

Switch from left click to right click to make character walk in the Top Down Example, in UE4?

When creating a new project in the Unreal Engine 4, you can choose to create a project already with some added features and things (Top Down Example): This project has a character (which I changed ...
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1answer
28 views

How to animate infinite rotary movement

I would like to add a chainsaw (or something similar to it... a rotary blade) to my game as a melee weapon. In fact, a rotary blade is a better example. Would it be better to do it in blender ...
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0answers
9 views

Import animated mesh without a rigged skeleton / armature

How can I import an animation of a mesh that was not animated using rigging, skeletons, or armatures from blender? There's got to be a way.
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1answer
41 views

In Cricket games, how is the ball synced with batsman's shot animation? How does the ball hit right at the center of the bat? How does this work?

I've been trying to figure this out for quite some time now. In Cricket games, when the bowler bowls, and batsman takes a shot, how does the ball sync with batsman's shot animation? For example, let'...
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1answer
31 views

Static Camera on Endless Runner

I am developing a mobile game in ue4. For this project, I need to have a "static" camera so that the player can move within the frame not affecting camera location and rotation. But as this is an ...
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0answers
25 views

Value returned is different to the value of the original object

I was wondering if someone could help me resolve a small roadblock I encountered aha... Essentially, in my Pickup.cpp file you can see that I'm trying to establish a behaviour wherein the object being ...
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1answer
18 views

Why does iOS packaging fail when I activate Apple ARKit plugins in Unreal Engine?

Steps, Using Unreal Engine 4.21.2 1 - I created new Third Person game from the Unreal Engine template and named it FaceARSample 2 - I imported a skeletal mesh with blend shapes 3 - I added this to ...
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0answers
25 views

Placing tile on second layer results in wrong tile, or changes nearby tiles

So I am working on a 2d game and running into strange behavior when trying to add tiles to a tile map. The first layer seems to work fine but if I add a new layer it will always place the same tile ...
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0answers
24 views

Drawing a helix effect in Unreal

i want to draw/graph an equation(like sinusoidal signal or any parametric equation) in UE4. I don't know if that is possible. I looked for it but found almost nothing. here is what i found most ...
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2answers
22 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 ...
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1answer
24 views

ue4 - create a instance of a c++ class within a blueprint

i'd like to create a instance of a c++ written class in a blueprint. that's my current approach, but the instance is 'None'. any advices? =)
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0answers
29 views

Problems setting up Epic online services in an Unreal Engine 4 project

I have been attempting to get the new Epic online services APK working in a UE4 project. When I add the header files and the .lib file to the project, Visual Studio does recognize the various ...
0
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1answer
34 views

How to create smoke that spreads outward in all directions?

I saw many tutorials about smoke grenade but they just use volumetric smoke. I want to make something like the smoke grenade in PUBG, where the smoke spreads in all directions; how to do that? The ...
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0answers
22 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). ...
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1answer
22 views

UE4 - UMG button polymorphism

I want to make a menu with a bunch of buttons. I want them all to look the same and be easier to edit, so I decided to make one "Button Parent" widget, insert it few times and give it a different "on ...
2
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1answer
71 views

UE4 crashes on launch when using custom components in C++?

I created SM_Door in my Editor with a custom Actor class named "Door" to fire some events like open and close. The problem is, ...
0
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1answer
19 views

UE4 - storing complex actors in Game Instance

I want to make a game where I can hold tools in my hand and inventory. Obviously I want to pass them between levels and maybe even game sessions. Question is, how would I do that? With simple ...
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0answers
14 views

UE4 - store items in Character or Game Instance?

I have a simple game where I can buy some items in a store, then walk out and use them. What is considered a better practice - to store the items array in the player controller and put them to the ...
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1answer
35 views

How can I set my non-convex object's collision to a more detailed one to allow other objects to go underneath?

My problem is simple. I imported a 3D object (it's not convex) and I want the character to go under your legs. But this does not happen: There seems to be a way to do this, I just do not know which ...
0
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1answer
38 views

How to change the mesh of the character in UE4?

I made a Bellsprout mesh in Blender, exported it as an FBX file, and imported it into UE4. I can insert it in the stage without problem, but I would like to use this Bellsprout mesh to replace the ...
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1answer
32 views

Randomizing material across meshes - UE4

I have multiple instances of the same mesh which is using the same material. While looking for randomizing textures, I came across texture bombing and so the material in 1 wall looks fairly random. ...
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1answer
67 views

How to setup input for local multiplayer without split-screen in Unreal Engine 4

To bind actions and axes in the character blueprint class, I may have multiple such character instances for each new APlayerController. Merely 1 Action Name (e.g. avoiding ...
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0answers
13 views

Applying material to group of meshes - Unreal engine 4

I'm trying to apply some materials to a group of static meshes (free internet content), but the problem is the material seems to be disconnected at the joint of the meshes. In the image you can see ...
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0answers
26 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 ...
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0answers
24 views

Custom server UE4

I am trying to create a custom server for my UE4 game for fun. I know that UE has built-in support for online multiplayer, but I still want to try and create my own networking solution. Is there a ...
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0answers
42 views

UE4 Error lighting needs to be rebuilt

I opened a blank project that came with two types of flooring, a table with two chairs and a statue. The only things I modified was the size of one of the floors and the texture of the two floors. ...
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0answers
50 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 ...
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0answers
39 views

How to get frustum coordinates of a scene capture / camera at a given focal distance?

Is there a way to get the bounds / frustum coordinates of a UE4 scenecap2d at a given focal distance? I'm not seeing a way of getting either 6 vectors for the frustum volume coordinates or 4 vectors ...
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1answer
105 views

How can I exit an Unreal game with a specific exit code?

How could I quit out of a Unreal game with a specific exit code? In Unity you can just Application.Quit(exitCode); but I could not find anything regarding Unreal. ...
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0answers
21 views

Unreal Engine and Simple Animation

I am creating a card based game and I am stuck on an animation detail. My question is I need an animation to shuffle the deck, a animation for dealing and an animation for drawing. My question is ...
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1answer
534 views

Why Godot over Cryengine, UE4, Armory3d or Unity3d? [closed]

Godot have a low performance in linux systems and lack of functionalities? This appear not been in account when peoples vote for him over other engines and i wonther whi. I know it is under MIT ...
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2answers
85 views

UE4 - 2D puzzles in 3D game

I want to create a game where you walk around in 3D, and sometimes you can activate some kind of 2D puzzle. For example - you walk up to the door, and you can open it using lockpicks. The lockpick ...
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0answers
76 views

Reflection captures need to be rebuild message wont go away

So I have a problem. I can't seem to get rid of the message saying reflection captures need to be rebuilt. I have built the lighting and clicked on build reflection captures but the message is still ...
1
vote
1answer
43 views

Unreal Android game crashes after google play integration

I'm fairly new to android game dev but after some months of work I finished making my game in ue4. However, when uploading it to google play on an alpha track and then trying to launch the app, it ...
1
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0answers
29 views

Why is the clear coat second normal disabled by default?

As described here, in order to set up a clear coat material with normals for both layers in Unreal Engine 4, it is first necessary to enable this feature in the project settings: Why is this not ...
14
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2answers
6k 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 ...
0
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1answer
83 views

Unreal Engine: Third person example project and multiplayer

I was fiddling around with multiplayer stuff in Unreal Engine. I looked into events that run only on server, multicasting events, replication of variables... But there is something that I dont quite ...
0
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1answer
91 views

How can I import a landscape mesh?

I can export the landscape of UE4 (File -> Export Selected -> .obj / .fbx) and load a landscape, for example, in Maya. But how is the modified landscape loaded back into UE4? Otherwise, how to import ...
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vote
1answer
77 views

Lighting in Unreal is not fluid, lighting changes drastically at object “borders”?

I used the starter content's wall objects, an atmospheric fog, a directional light and this is the result: As you can see, it's obvious where the new object starts. Why?
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1answer
83 views

Manipulating time in Unreal messes up Physics simulation?

I'm trying to achive a Super Hot like gameplay, where the time only flows when the player moves. But when I stop time, then restart it, physics simulation will be messed up. Like: Cloths starts ...
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2answers
119 views

Multiple errors on brand new C++ project

I've just started a brand new project and created a created a new C++ Character class. However Visual Studio 2017 shows 140 errors. The project still builds fine, however the syntax highlighting and ...
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1answer
58 views

Ludum Dare - Tips and tricks for new challenger [closed]

I plan to join on solo the 43th Ludum dare in 20 days. It will be my first LD and I would like to know if you have some tips regarding the LD in general or some software to suggest. My goal is not ...
0
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1answer
109 views

Unreal 4 - How to access and iterate through the polygons of a mesh?

I'm newbie with Unreal Engine 4. I need to create a function which calculates the volume of a mesh, based on the following example: https://n-e-r-v-o-u-s.com/blog/?p=4415 To achieve that I created ...
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1answer
180 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 ...
2
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1answer
181 views

Recreating Common “Glowing Pillar” Effect in UE4

I've noticed a common "glowing pillar beacon" effect in a few games lately (Overwatch, Fortnite, etc). The effect provides a translucent glowing beam pointing upwards that tapers off towards the top ...