I reupload this material again because I wanted to render as much as possible and separate the substance designer version and unreal version.
This is a material study of Layers in Substance Designer. I made floor tile materials to save textures with RGB mask images. I will show the UE4 shader part after rendering and additional work. All of the materials (granite, marble1, marble2, gold, mask) are made in Substance Designer and rendered in Marmoset Toolbag 3.
For more hi-res images, go to https://www.artstation.com/artwork/N5dzzd