Adding Detail maps to a material
When creating a large object, there is not only the desire to Texture it as a whole, but also to add details that can make it look better when viewed up close. To overcome the need for large, memory-hogging, highly-detailed texture maps, the use of Detail maps can make a real difference.
In this recipe, we will add Detail maps to a rocket toy by applying a Detail mask and a Detail Normal map. In our case, we want to add a textured quality (and a stripe pattern) to the green plastic, except in the region where there is a battery compartment and the toy's logo:

Getting ready
For this recipe, we have prepared three files in the 05_06
folder:
rocketToy.fbx
: A 3D object of a package (FBX format)ship_diffuse.png
: The diffused texture map for the rocket ship toy (PNG format)ship_height.png
: The heightmap to be used to create a normal map (PNG format)
Also provided are the four final, image-edited files you'll create in the project:
detail_diffuse.png
: The Albedo texture...