Today we begin a new series of videos about custom lighting models. Usually when we make a shader, we just define the material properties - color, normal, smoothness, metallic, etc - but in the series of videos I'm going to show you how to define and customize the calculations that define how light interacts with the surface - including diffuse, specular, and ambient lighting.Take a look at the playlist for the whole series:https://www.youtube.com/playlist?list=PL78XDi0TS4lGnGa7L2X4o3UV-XYZEKNwj 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