Questions tagged [blueprints]

Blueprints is a visual, node-based scripting model used by Unreal Engine 4.

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Can't connect to Steam using Blueprints in UE4.25

I'm following this tutorial by Unreal Engine itself, but I don't have a Steam overlay popup like I'm supposed to, (according to the tutorial.) And actually a lot of people have a similar issues like ...
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1answer
37 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 ...
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5answers
2k views

Unreal Engine 4 - AI MoveTo always fails

I try to move a character with AI MoveTo, but it always fails. I tried to do this with standart ThirdPersonController and a custom one. The blueprint is simple When the event happens, it starts ...
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34 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......
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2answers
57 views

How can I to get an animation to be triggered by proximity of a mesh actor (an object)?

So I'm making my first build in Unreal 4 using Blueprint. The "game" calls for the player character to grab a particular object (a static mesh actor) and bring it close to a door that will ...
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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 ...
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136 views

Blocks / tiles aren't responding to clicks

I've recently finished a tutorial, UE4 Slide Puzzle by Nicholas Thompson. Halfway through the second tutorial, I found out that the blocks / tiles wouldn't respond to my clicks. For example, when I ...
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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 ...
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1answer
33 views

How to collect objects from map in blueprints

I have a plate with trigger(TriggerVolume) on it. When it overlapped cubes from map deleting. I've manually created references on cubes in blueprint to delete them but it seems very hard-coded. Is ...
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1answer
299 views

How do I make a blueprint run keyboard key commands?

I created a project based on the Top Down Example. In the project comes a character that I can move by clicking on the terrain that already comes by default. Image of gameplay: In the character's ...
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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 ...
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2answers
50 views

Make my Character face the same way as my Camera as I rotate the camera

Before posting, I've already tried parenting the camera to the Character mesh head and setting controller yaw, that didn't work, in fact it invalidated my blueprint to set my Mouse X and Y for the ...
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130 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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14 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 ...
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1answer
65 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++: ...
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1answer
65 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?
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1answer
114 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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11 views

Populating Static Mesh Array

I'm trying to populate a Array of Static Meshes from the On Begin Play event with all the static meshes that are children of the primary object but can't seem to access them as static meshes, any ...
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1answer
3k 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 ...
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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 ...
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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*)...
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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 ...
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1answer
67 views

Get BP FollowCamera Rotation and Location

I'm accessing my FollowCamera https://imgur.com/a/vbFagxg from my BluePrintCharacter class in my C++ code, with this following line : ...
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1answer
436 views

Destroy multiple actors by pressing a button

I'm making a simple project to learn Unreal Engine. I have 50 actors (blueprints) and at the start a function will loop 5 times and spawn 5 of the 50 actors randomly. How can I destroy the actors by ...
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2answers
49 views

Adding 2 sounds to 1 asset

I've got a sound looping from the start of the game, working exactly as I need it to. What I need is a second sound to alert the player that they have located the hidden object (the first sound is a ...
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1answer
339 views

UE4 Blueprint Multiplayer Spawning Issue

I'm attempting to copy/modify the MultiplayerShootout project's multiplayer functionality for my own project. I'm running into issues when Player 2 joins a running session though. Finding it very hard ...
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1answer
30 views

How can I transfer this code (originally for FPS template) for use in a Third Person Template?

I learned how to create a blueprint for making a character be able to pick up and drop objects: It did not work, and I believe the reason is because it was originally made to work for the FPS ...
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21 views

Custom event doesn't update blueprint variables

Here's what I have: To sum it up: calling the OnInteract event (which comes from an interface) prints the 'Proceed' variable. Clicking Fire sets the variable to true and prints it. 'Proceed' is false ...
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1answer
21 views

Cannot create EAttachmentRule variable in a Blueprint struct

I'm trying to add a EAttachmentRule variable in a struct but the enum doesn't appear in the list of available types I managed to create a variable in a BP by dragging the pin from an ...
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1answer
33 views

Method to make character roam map isn't working

I'm an absolute beginner in Unreal Engine, so sorry for any strange mistakes, formatting, etc. I'm trying to make a game for a project where an enemy chases the player through a maze when it spots the ...
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9 views

Character is out of location after animation montage in UE4

so I have my running and idle animation working fine on my character but once I do the attack animation thru an animation montage, my character slowly floats off the ground and as I attack many times ...
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1answer
54 views

How do I fix this “Accessed None trying to read property Save Game” error?

I have create this blueprint, with a Check for an existing Save-Game and load it in case of true. Else, create a new save game object. While Z is pressed, create a new Save Game, getting the Player ...
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74 views

UE4 - Function is not being called

I've recently created a shuffle-type puzzle game for mobile (with Unreal Engine 4), where you, obviously, solve these puzzles. Since I didn't know how to do this puzzle mechanic in UE4, I went to UE4 -...
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14 views

Floor is moving faster than ball above it , and it causes ball to fall off the map. UE4

I am creating a game ( following Udemy lesson on Marble run) which is basically a maze and ball and we move ball my rotating floor on x or y axis through obstacles . Floor movement is linked on Mouse ...
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1answer
86 views

Why would I add components in code?

Watching a Unreal Course, and the instructor is creating a default pawn c++ class. He is adding all the components with code, but this seems really inefficient to me. Why can't you add components in ...
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300 views

Optimize spawn & destroy? (Unreal Engine)

I'd really like to know how you'd go about optimizing this? 20 actors each spawning 8 projectiles per 0.1 sec which are then destroyed 0.8 seconds later, all done through blueprints Gif: https://gyazo....
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1answer
658 views

UE4 Drag and Drop: Place PaperCharacter Over Image Widget

I'm working on adding drag and drop functionality to my game. I have it working with the exception of I can't get what I'm dropping to be placed where it was dropped. I've tried a number of different ...
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2answers
12k views

How to resolve “Accessed None trying to read property” error?

Whenever I finish running the project, this error message appears: Blueprint Runtime Error: "Accessed None trying to read property jogador". Blueprint: Jogador_BP_Anim Function: Execute ...
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51 views

Skeleton bone in incorrect spot in-game yet, blender rig, skeleton mesh and physics asset are all correct and behave properly

I've made a custom character and rigged it in blender. Then exported/imported into ue4. It behaves properly in the PHAT and the skeleton mesh looks fine and it all behaves properly in the simulations. ...
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16 views

Uncover Physics Object to Pick it Up

I want to be able to have physics objects semi-buried in leaves, dirt, or whatever and be able to have the player click on the area a couple times to uncover them, and he can't pick it up until he has ...
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1answer
80 views

How to Sync the Location After Getting Up from Ragdoll?

I am currently working on multiplayer fighting game and my game will have an anim->ragdoll when the player is knocked out and be able to getting up from it. My problem now is ragdoll is making my ...
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21 views

Widget button hover event works but not click

This is my first time making a widget and I'm trying to make a super simple one, just a button. However, when I attach the widget to an actor and try to press it, it doesn't register any click events ...
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1answer
642 views

Correct use of AttachActorToActor [ue4]

I'm trying to stick some blocks together, but frankly I have no idea what I'm doing. I spawn 2 blocks during run time, and if they have an on hit event they're supposed to stick to each other. It ...
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143 views

Place actors that attach to other actors and simulate physics as a single object

I'm super new to UE4. I'm making a block-based building game (I know, I know) in which I want to place actors (blocks) that can "attach" to another actor(block), and then simulate physics as ...
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54 views

UE4 Procedural Planet Design

I am building a game that requires a full planet but it would be too complicated to create it as one mesh, so I decided that I will use procedural generation to create the (partially) editable ...
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1answer
19 views

UnrealEngine: Variables of GetGameMode are empty

I'm confronted with the following issue: Inside the class setup for one of my actors, I'm trying to get the value of an array which is declared, instanced and successfully populated in my GameMode's ...
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1answer
65 views

Blueprint script executed on tick but not on construction

Below, on event tick, I am initializing a map of images once, which works fine (remember we are in a graph for a widget blueprint here). Z Cursor Images is the map of the images. The keys in the map ...
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1answer
86 views

Assigning values on multiple clients in UE4

I am currently working on a multiplayer game and I am having difficulties on assigning values on variables for each clients. Originally I looped through available clients character from HUD then ...
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0answers
22 views

Overriden Event does not execute on Unreal

I've been learning Unreal Engine through this tutorial and I am having an issue with overriding an event I created on C++ using blueprints. So here is what I've done: I created a class called ...