[ill]

The first one of these processes, crystallization, is a true texture formation process, whereas all other processes start from an already existing texture, which is then modified by the process; these processes are texture changing processes. This can be written in

rnd(g) = MN ® ... ® M3 ® M2 ® Ml ®ptart(g) (39) where Mn are "operators" that express the change of the texture. A texture change operator may depend on many parameters, particularly the following:

The material, including crystal structure, composition, symmetry, grain size, particle shape, and many others.