Using decals to add granularity to our scenes

Decals are a great thing as they allow us to project certain materials into the world. This opens up multiple possibilities for us, like having greater control over where we place certain textures or the ability to add variety to multiple surfaces without complicating our material graphs. They are also useful in a visual way, as they allow us to see certain changes without the need to move back and forward between the material editor and the main scene. Furthermore, Unreal has recently introduced a new type of decal that allows not only for planar projections but also mesh-based ones, which can be really useful whenever we want to project something into a non planar surface—as we are about to see. So without further ado, let's jump right into it and see what this is all about!

Getting ready

Just like we mentioned at the beginning of this recipe, we'll be making use of both the standard decals that Unreal has included since it launched and the new...