Creating rough or bumpy surfaces

Nearly everything that you probably can see right now has some sort of texture on it. …Even something as simple as a mirror, at the finest level, it has bumps. …In CINEMA 4D, the programmers have given us the ability to make rough surfaces. …In fact, they've divided that into two different techniques. …One is called the Bump channel and the other is called displacement. …The Bump channel simulates indentations on the surface of an object, and the Displacement …channel actually creates indentations on the surface of an object. …Let's see what that means.…

I've got a very simple scene that I'm starting with here. …I'm going to make a new material by double-clicking in the Material Manager. …In this material I'm going to go to the Basic properties and I'm going to activate Bump. …Nothing happened. …The reason that nothing happened is that the Bump channel needs information in order to …generate bumps, and what it needs is a grayscale map. …You can put a color image in there, but it's only ever going to need to look at the light and dark values. …