From the course: Unreal Engine: Materials for Architectural Visualization

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Adding the roughness

Adding the roughness - Unreal Engine Tutorial

From the course: Unreal Engine: Materials for Architectural Visualization

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Adding the roughness

- [Instructor] The roughness mapping material is often times the one that helps us understand what kind of surface or material we are meant to be looking at, and even what condition the object is meant to be in. For example, if we see a noticeably reflective stone wall we might conclude that it has either been raining or that at some point and for some reason an amount of water has been dumped on it. If we see a metal that doesn't have any real shine to it then we may assume that it is in poor condition, it is very old, or both. Of course these are not strict rules and so we simply mention them to help illustrate why setting up a flexible roughness map for our material would be a good thing to do. With that in mind then, what we will probably want to do is give our user the option to use just a single roughness color without variation for our newer type materials. And also, so is to be able to add more variation and so story to an object a bitmap as well. In fact we can go one step…

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