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Using an Opacity / Transparency Map in DAZ Studio (Iray)

Transparency is handled differently across render engines and file formats. While a PNG, TIF or GIF file can contain transparency data, a JPG image cannot. DAZ Studio’s Iray render engine can’t handle transparency data embedded in such images and requires the use of a special Opacity or Transparency Map. This might sound a little confusing, …

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How to change the colour of a material via Blueprint in Unreal Engine

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.

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What is Yaw, Pitch and Roll in 3D axis values

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” …

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Adding subtle wind animation effects in Unreal Engine

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.

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Prevent the EPIC Launcher from closing when you open Unreal Engine or games

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 …

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