how to create a bump texture?

Hi again guys, what kind of bitmap do I have to add to obtain a bump look? B&W? Thanks in advance.

Re: how to create a bump texture?

All bump maps need to be grayscale images. After that it should just be putting it into the bump slot and adjusting the multiplier to control the effect

Re: how to create a bump texture?

dalomar, how do you put the image into the bump slot?