aVersionOfReality writes:
I will attempt to explain how Tangent Normal Mapping works in common terms and with plenty of visual examples. Normal mapping is one of the most powerful tools we have for achieving high quality custom normals. But it is difficult to use because it requires complete understanding to get it to do what we want. And it is hard to find a good explanation in terms artists will understand. So I shall attempt to make the explanation I wish I'd had when I was learning it!
