Hi Hamzah,
What do you mean by depth? A bump map or a normal map?
Create an material in your assets folder and check the options (and the shaders) there. Assign that material to your game object. And assign the relevant textures to the fields in the material.
If you want to learn how to create a normal map or a bump map, you can find quite a few tutorials on Youtube.
Also please feel free to ask our helpful community of students for further advice over on our Discord chat server.
See also:
- Forum User Guides : How to mark a topic as solved