Graphics Programs Reference
In-Depth Information
and farther away from straight on getting darker and darker.
This is much like a Fresnel effect if you are familiar with that.
Figure 19-9:
Thebluechan-
nel singled out
As you become more and more comfortable with the tech-
niques behind normal mapping, you will inevitably start
modifying and even painting things in and out of your normal
maps in programs such as Photoshop.
Normal mapping is an amazingly nifty technique, and
understanding how it works is crucial when working with
normal maps.
