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.
642
questions
1
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0answers
21 views
UE4 - Make AI move up and down?
I have this AI character that flys around on the x and y axis in random directions, but is it possible to make the character move up and down randomly? I tried movement input with a lerp and delay but ...
3
votes
0answers
50 views
Underwater Post Process Using Unreal Engine 4 Water Plugin?
I'm using a custom water body from Unreal Engine 4's water plugin and I'd really like the screen to turn blue as soon as the first person camera goes underwater. I tried putting just a normal post ...
0
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0answers
33 views
How do I create surfing?
I want to know how I can lerp from my current position, to another position, while hugging the terrain. Imagine I'm doing something like surfing, or skateboarding, where I need to follow the rail......
0
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0answers
22 views
Multiplayer client has two GameStates
I'm having struggle with GameState. My custom GameState is child of Game State Base. GameMode (child of Game Mode Base) is updating some variables in my GameState. But my clients have two separate ...
0
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0answers
41 views
[MMORPG][Client -> Server -> Interest Area Clients] Movement broadcasting
I'm developing a third-person action-combat MMORPG.
Custom server written in C++ 17 and the client is written/built in UE4.
The interest area is implemented using a grid (cell cluster).
Study case: ...
0
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0answers
9 views
Unreal: Paragon features: Best way to find the lean angle
I've been trying to follow the Laurent Delayen talk about distance matching and different techniques.
Leans are tricky for me.
This is the trigger from the talk.
What is the best way to approach this?...
0
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0answers
24 views
How can I recreate a material from blender in Unreal engine
I'm new to unreal and I am having trouble finding a way to reproduce the materials for a mesh in blender in unreal. It's a simple material but I can't find a way to reproduce the color ramp ...
0
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0answers
16 views
Posing a skeleton & seeing it update in the viewport in UE4
My dilemma I am facing is: I have modelled a Neuron (octupus looking thing) in blender and attached an armature to each tentacle so that I can pose it in Unreal.
Export to UE4 with skeletal mesh, open ...
1
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0answers
17 views
Solved UE4, How do it to where when my camera looks up and down my character mesh which is a hand also moves up and down
I am using the blueprint system on the ThirdPersonTemplate, please someone help me i have been stuck here for quite some time...
-- SOLVED
For anyone wondering all you have to do is set the character ...
0
votes
1answer
34 views
How to desaturate and blur the game world when paused in Unreal Engine 4
I am creating the pause menu for my game. I want the screen to turn black and white and blurry when it is paused, much like Left4Dead. But the only special effect I can find is background blur. How ...
0
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0answers
18 views
UE4 Blueprints - AI movement on moving platform/object (like a ship deck)
I want to have AI (enemies) on a boat that moves on a path around the level (an island). But the AI seems to have a problem navigating on the deck of the ship. They always end up on the far back of ...
1
vote
0answers
12 views
Unreal Engine 4- Post Processing material isnt working on different viewports except perspective
I would like to render a silhouette of models, I found stencil would be the best way to capture. But when I am working with stencil post-process material its does not work with other viewports except ...
0
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0answers
13 views
Panner Node (Planet Material Day/Night Map)
I made an Earth material that rotates and shows day and night by combining different maps and masks (Similar to these set ups https://youtu.be/FMU1FkHFHXk AND https://youtu.be/ugXWt6AmudY). The logic ...
1
vote
1answer
94 views
How do game engines enforce global, engine-specific coordinate systems?
In Unreal, the 3D coordinate system is defined as a right-handed, X-forward, Y-left, Z-up frame of reference; but, the default 3D coordinate system for, say, DirectX is a left-handed, X-right, Y-up, Z-...
0
votes
1answer
40 views
Unreal gives error when line tracing collision
I am currently using Unreal Engine 4.26.
I have been following this tutorial to make a parkour game in Unreal.
I followed the tutorial exactly, and made a walk/jump/double jump game.
However, when I ...
0
votes
1answer
95 views
How can I change the game executable name to something other than UE4.exe?
I have a game and when I export it it is called Bounced! but in windows task manager the process appears as UE4.exe but with the logo of my game, how can I change this to Bounced.exe?
1
vote
1answer
30 views
How can I install Unreal engine on a PC with metered connection or completelly offline?
I need to get Unreal Engine 4 as soon as possible on my desktop PC, in order to complete a task. However, the computer is on a metered connection and downloading it there would cost me about 3 pizzas ...
1
vote
0answers
17 views
How to fix UV Mapping Bleed in UE4 [closed]
Images of the issue, code, and logs
Howdy, I’m creating a cube using ProceduralMeshComponent in UE4 and I’ve run into the issue of creating my UV Maps. I’m completely stuck on the issue, as it looks ...
0
votes
0answers
13 views
Unreal Engine 4 DefaultInput.ini mappings not showing in editor
The mappings from DefaultInput.ini are not showing up in the editor. I had originally added them in the editor project settings, but it lost the mappings except for 2 of them Jump and Reset VR. They ...
1
vote
0answers
14 views
How do I prevent my umap from being modified at every save?
I'm using UnrealEngine 4. Every time I save my files, my .umap file seems to be modified. I can basically generate an infinite stream of commits by just clicking <...
1
vote
0answers
24 views
How to connect a UPhysicsConstraintComponent of an AActor to an FKSphylElem (capsule body) of a ragdoll?
I'm trying to connect an Actor's UPhysicsConstraintComponent to a capsule body of a ragdoll. The reason I do it this way, instead of just using sockets on the ...
1
vote
1answer
42 views
Add inertia to Pawn movement
I've just started to learn Unreal Engine 4.26.2 while developing an Atari Pong clone.
This is how I have implemented the Paddle's movement (but this implementation doesn't accelerate or has inertia):
<...
0
votes
0answers
12 views
How to use AttachComponentToComponent in C++?
Anyone can explain why using the blueprint is more efficient in this case, I mean when I attach the hairs using blueprint, the hairs is welded with headsocket in editor and in play mode, but with C++ ...
0
votes
0answers
9 views
Unreal Engine Visual Studio 2019 C++ - Could not open source file CoreMinimal.h [duplicate]
I'm trying to follow a YouTube tutorial and I've ran into this (Severity Code Description Project File Line Suppression State
Error (active) E1696 cannot open source file "...
0
votes
2answers
34 views
How to set the hair_mesh to follow the animation?
How to set the hair mesh to follow the animation?
I am trying this.
...
0
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0answers
53 views
Unreal Engine 4 HierarchicalInstancedStaticMesh (HISM) not distance culling
What I'm trying to do:
I am trying to programmatically spawn a lot of HierarchicalInstancedStaticMesh on a very very large ProceduralMeshComponent (PMC) (very simplified for the sake of this question)....
2
votes
1answer
64 views
How to pass parameters to a Blueprint function called from C++?
I have found this piece of code showing how to call a blueprint function from C++:
...
2
votes
1answer
34 views
Where do I have to put actions when the game state changes
I’ve just started to learn Unreal Engine implementing a clone version of Atari’s Pong game.
I’m thinking about where to put the code to change the state of the game. I have an enum in the GameState ...
0
votes
1answer
64 views
How do I add custom data to a ListView widget in Unreal?
I have a UserWidget object with a ListView in it.
How do I add objects add and custom data to them, such as names?
0
votes
0answers
15 views
PlaySoundAtLocation plays sound after some delay
I’m developing the Pong game to learn Unreal Engine 4.26 using C++.
I use this code in the class’ constructor to load the sound:
...
0
votes
0answers
46 views
How to use SetBoneRotationByName() to rotate a single bone in a armature?
I am very excited to finally be learning Unreal engine development! But I have been working with Unreal editor for only the past couple of days but am having trouble understand how to rotate or ...
0
votes
1answer
112 views
RunUAT Error: Automation was unable to run successfully (unreal engine 4.26.2)
I have completed my setup in Mac OS and configured all android dependencies like SDK, NDK, and JDK.
but whenever I tried to package my project it shows an error
I tried with a completed fresh project ...
0
votes
1answer
81 views
How can I add these bones to my meta human? Or is there a way I can make virtual bones count when retargetting?
Paid for animations thinking they would be fine and they mostly are but... the hands are using these IK bones that I do not have. Is there a way I can add the bones to my meta skeleton within unreal? ...
0
votes
2answers
31 views
Read actor instance's text variable for widget when triggered on different objects
What I'm trying to do:
(a 'long story version' is linked in comment below)
(and another user example is hyperlinked in comment below - i couldn't post over 8 images and/or links in this first comment*)...
0
votes
0answers
40 views
UE4 Repeat fail: how to feed text widget unique message on instances
I am a noob who has spent many hours looking at similar questions and responses but still failing to get desired result. I am going to be thorough and specific - I'm very keen on walk-throughs with ...
0
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0answers
10 views
How to build solution for this specific Unreal plugin?
I am trying to set up this Cuda fluid sim plugin in Unreal.
I created a .sln file from the forked branch with CMake and then built the solution. I found an ...
1
vote
1answer
33 views
Using UPawnMovementComponent to control a Pawn with Keyboard sharing code between Pawns
I've just started to learn Unreal and reading the tutorial Components and Collisions I have found that they use the UPawnMovementComponent to control their ...
0
votes
1answer
28 views
Why Query Only fires OnComponentHit? It supposes to fires only Overlap events
I've just started to develop with Unreal Engine 4.26.2 and I've been for five days trying to understand how collision works.
I'm developing a Pong game, and I'm trying to make that the Ball bounces ...
0
votes
1answer
46 views
Would creating a player scriptable game using Unreal Engine or Unity violate their license agreement?
I want to create a game in Unity or UE4 which allows the user to write scripts in Python and run them mainly to control the AI. I will have to find a way to enable runtime script execution first. ...
1
vote
0answers
67 views
Control rig sequence is not in UE4 menu
In the Unreal Engine docs, it is mentioned that, in order to create a Animation Sequence using the Control Rig, it is possible to create a ...
0
votes
0answers
19 views
How to retrieve 3D models from a server in Unreal Engine 4
How can I load 3D models from a server in Unreal Engine?
0
votes
1answer
56 views
UE4 doesnt work with subfolders
I am trying to create a file structure for my code in c++classes/Myproject (in UE4 editor). I added a new class and in UE4s "Add C++ Class" dialog box I set the path for the created scripts ...
0
votes
0answers
9 views
Get GPU Visualizer widget info
I want to read some info from the GPU Visualizer widget and use it in my plugin, but I have no idea how.
I guess this code is responsible for running the ProfileGPU ...
0
votes
0answers
17 views
Get Skeletal Mesh Vertex Position in Niagara
I have a custom HLSL node in a simulation stage in Niagara. One of the input variables to this node is of type Skeletal Mesh and I want to get the position and normal of a given vertex on that ...
0
votes
0answers
24 views
Assertion Failed: TextureRHI - Texture Casting Errors (UE4)
I am taking a pointer to a UTexture2D asset "MyTexture2D", and casting it to an array of FColor using the following:
...
1
vote
0answers
25 views
Creating an external tool to edit Unreal project optimization settings
INTRO
I am creating a C++ app that will help users to set up optimization settings in the Unreal game engine. I want to let the program make all this work on its own. This application is being written ...
0
votes
1answer
25 views
Why is the Set new visibility doesn't resets the hair's skeletal mesh visibility to be visible?
The helmet is loaded when pressed a defined key and helmet is removed automatically by setting the remove on 2s delay.
The Problem when the helmet is removed, the hairs visibility doesn't sets to be ...
0
votes
0answers
28 views
World border in World composition
A question. In World Composition there is such a border of the world. As I understand it, everything that goes beyond its limits is destroyed, but is there an option to evade it?
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0answers
80 views
How to use the unreal “automation spec” with the “automation driver” and latent actions?
I would like to be able to create an automated test for Unreal that will load a specific map/level and then use the automation driver, which as I understand it, is a way of faking user input, to do ...
0
votes
0answers
23 views
How do I determine that the edge of the camera intersects the edge of the background sprite? UE4
I'm trying to make sure that when the camera reaches the border (left or right) of the sprite's background, a copy of it is spawned from the corresponding side. But I seem to be missing something in ...
