How I created several buttons with images inside a Wrap Box, which in turn sits inside a Scroll Box. Also explain how the Scroll Widget into View node is needed to make sure the thing actually scrolls. I wanted to implement a scrolling selection menu in Unreal Engine, inspired by the one I’ve seen in …
Read moreCreating a scrolling menu with images in Unreal Engine
In this article I’ll explain how to add gamepad and keyboard navigation to UI Widgets in Unreal Engine. To my surprise, gamepad navigation magically works alongside regular mouse navigation, as long as Keyboard Focus is set appropriately on any of our UI elements. We don’t need to add any special logic to our project. All …
Read moreAdding Gamepad Navigation for Menu Selections in Unreal Engine
I just solved a puzzle that appeared so simple at first: I wanted to replace an image that was a child of a button in a UI widget in Unreal Engine. I had set it in the UI Designer just fine, simply picked it from the drop-down menu as an initial value, but then wanted …
Read moreReplacing a Button Image via Blueprint in Unreal Engine
Something that wasn’t immediately obvious to me is that Unreal Engine saves its own file format under the hood. For example, a prop or audio file is not stored as .OBJ or .WAV, but as .UASSET file. Perhaps it’s just a wrapper that stores binary data, or maybe it’s some other kind of magic. Be …
I’ve just learnt about a nifty mechanism to change parameters on a material node in Unreal Engine. The niftyness lies in the fact that when we convert static values in the material editor into parameters, which them become the equivalent of public variables that are accessible from other parts of UE4. It sounds way scarier than it is, let me how you how it works in detail and step by step.
Read moreHow to change the colour of a material via Blueprint in Unreal Engine
There’s a slightly weird terminology I keep hearing in various 3D applications. Those terms are Yaw, Pitch and Roll. I have trouble remembering which one is which, and which one is related to what axis in 3D space. I’m more used to the Euler notation system, and the only one I can remember is “roll” …
I’ve always been marvelling at all the little moving background items in video games. Most trees, grass, plants and such foliage appears to move subtly. How do they do that? Perhaps it’s a wind node? Surely that’ll eat up huge amounts of resources.
I just found a computationally cheaper trick to do this, namely by adding this effect to the plant’s material, thanks to a video by MetalGameStudios. It suggests that we can do this in two ways, both of which are described below. In either case, open the material of your object to proceed.
Read moreAdding subtle wind animation effects in Unreal Engine
The EPIC Games launcher is a really handy tool from anything to add content into your projects or to browse marketplace assets. It has this annoying habit of closing automatically when Unreal Engine or a game of your choice is running. This might be fine for gamers, but I find myself frequently re-opening it once …
Read morePrevent the EPIC Launcher from closing when you open Unreal Engine or games