In today's shader tutorial, we add a parameter to our simple lighting model to control how metallic the surface is. And we a adjust the model so it includes the math required for metallic surfaces.Take a look at the playlist for the whole series:https://www.youtube.com/playlist?list=PL78XDi0TS4lGnGa7L2X4o3UV-XYZEKNwj Here's last week's video on putting together the simple lighting model:https://youtu.be/pxp68A6Wlfg Shader Book Recommendationshttps://www.bencloward.com/resources_books.shtml ------------------------------Theme MusicPeace in the Circuitry - Glitch Hophttp://teknoaxe.com/Link_Code_3.php?q=1526 Background MusicSpeo - The Little Thingshttps://www.youtube.com/watch?v=kvCYuyyLgC0 #UnrealEngine #shadergraph #Unity