Yes Tilandra. Concerning bumps it works approximately the same. In material editor, select bump page. Then right click on the sphere, then select edit function, then click on mapped values. A button named picture will appear; you will be able to load a bump picture. That's all. Yes it's not easy , but this type of system gives a lot of possibilities, maybe an infinite number (since you can mix several materials, with or without influence of environment, you can have several layers in one material,...) But I am not a specialist in that... :) Yves