I think the is not layer dependent but textures, the gotcha is it counts each layer as a texture also. So if you are efficient with your textures then you can get 5-7 layers, I’d have to go back to research it but I think 16 textures is , and it counts each layer and a new texture and maybe one for the material or something, it always feels like you get so few. I maybe wrong its something like that tho.