Creating the roughness channel is important to the overall look of a PBR Material. In this video, learn how to add flexibility using the multiply node along with an alpha channel that is controlled via a constant node.
- [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. …
Author
Released
3/14/2019- Geometry detail vs. texture detail
- Advantages of bitmaps in Unreal
- Building materials inside Unreal
- How and when to use the Material Editor
- Building flexibility into materials
- Using Substance Source and Share
- Using B2M inside Unreal Engine
- Benefits of procedural texturing
Skill Level Intermediate
Duration
Views
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Unreal Engine: ArchViz Design Techniques
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Introduction
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1. Important Workflow Considerations
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Why texture procedurally?2m 45s
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2. Building Materials Inside Unreal
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Creating a new Material3m 10s
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Setting up the base colour4m 26s
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Adding the roughness3m 46s
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Blending the normal maps2m 48s
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3. Using Substance Source and Share with Unreal
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Using Substance Share2m 43s
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4. Putting Bitmap 2 Material to Good Use
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Working with patterns in B2M2m 41s
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5. Benifits of Procedural Texturing
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Creating tileability2m 52s
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Conclusion
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Next steps50s
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Video: Adding the roughness