Introduction to xNormal
xNormal is a free, standalone 3D software that is very popular for baking texture maps.
The reason we're baking texture maps in xNormal is that the process of baking curvature maps in Blender is far too complex for the scope of this book, whereas xNormal is extremely quick and easy to use.
You now know what xNormal is used for. In the next section, we will learn how to prepare the Robot Drone model for use in xNormal.