I am doing the old game assets pack in the Blender course to make my level for the fps of the 3D Unity Course. I have done the walls, windows and doors of my first level, but now I want to add decals to make them more realistic. What I don’t know is how to use them. Do I bake them with the wall in blender? Do I use them directly in Unity?
If I have to bake them in blender, how do I connect them in the shading? Is there some method to put them on the wall without having to re-bake the wall?
For setting them up in blender I would use a mix shader controled by a mask image. You could also set the decals on a plane located just a mm or two in front of the wall and bake to a separate object but that would require making sure your lighting was set the same as in the game.
Another alternate to consider is creating the decals as separate objects that you can import and place as desired.
As for how to put the shaders together in Unity you’re probably better off asking on the discord server
