Bumpmapping textures allow you to put more 4d like effect into your textures.
You can acctually see the depths inside them.
Unlike normals. You can turn this texture in a real round perfect fist.
This will be even improved when 4.0 is released.
This texture is expensive for a reason, this quality is newly improved and highly improved.
This is better than all other textures i suggest.
This also brings up a glowing effect. your texture acctually glows.
Dor more inpormation pm me.
What? No.
Bumpmap adds updating shadows. You need to make a "normal map" as the texture for them to work. There are probably old tutorials laying around for that.