From the course: Unreal Engine: Global Illumination for Architectural Visualization
Join today to access over 22,600 courses taught by industry experts or purchase this course individually.
How UV mapping affects GI - Unreal Engine Tutorial
From the course: Unreal Engine: Global Illumination for Architectural Visualization
How UV mapping affects GI
- [Instructor] Because Lightmass creates bitmaps in order to store both the direct and indirect lighting information found in a level, the creation and placement of unique light map UVs on the static meshes in the scene can and will have a direct impact on the quality of our GI Solutions. Two important questions that we need to consider, then. Firstly, how do light map UVs work? So, are they like regular UVs or different? And secondly, how do they actually help make a GI Solution look good? To help with this, if we come to the Static Meshes folder in the Content browser, and then double click to view, say, the Couch Mesh, this will open up in the Asset Viewer, where we can press the F key to focus in on it if needed. At the top of the UI, we see a UV button that has a dropdown arrow which, if we click, straight away tells us that this object currently has two UV channels assigned to it, with Channel Zero containing the UVs for materials and any associated texture maps that may be…
Practice while you learn with exercise files
Download the files the instructor uses to teach the course. Follow along and learn by watching, listening and practicing.
Download courses and learn on the go
Watch courses on your mobile device without an internet connection. Download courses using your iOS or Android LinkedIn Learning app.