A simple rendering, the quality is very general, but the steps are the same.

Step one:

Diffuse and paste a bitmap without adding any effect.

Second step

Put a black and white map on the displacement, that is, the one with diffuse reflection to remove the color.

However, the effect of replacement is generally ok, but it will be a little slow when rendering. If the computer configuration is normal, you can try to open the bump map, and the quality should be ok.