https://www.cineversity.com/vidplaylist/toon_car_texturing_baking_techniques
In this mini series we will take a look at some of the things you can do, after you have UV unwrapped a 3D model. We are going to apply a number of simple textures using various projections, consolidate multi-part models into single ones, bake multiple materials into a single Texture map, and finally Export the model to Unreal Engine.