There are at the moment 8 different tutorials on materials and how I define them and some tricks I do on various surface types.
Some of them involves sculpting in Zbrush and some are only Max or even Photoshop only.
So here goes:

http://www.philipk.net/tutorials/materi ... rials.html
And here are some quick links to the different tutorials:

http://www.philipk.net/tutorials/materi ... matte.html

http://www.philipk.net/tutorials/materi ... erock.html

http://www.philipk.net/tutorials/materi ... rough.html

http://www.philipk.net/tutorials/materi ... acked.html

http://www.philipk.net/tutorials/materi ... arble.html

http://www.philipk.net/tutorials/materi ... crete.html

http://www.philipk.net/tutorials/materi ... esold.html

http://www.philipk.net/tutorials/materi ... ricks.html
Hope you can find some of them useful!
And if you missed it before there are two more tutorials I made earlier on modular meshes:

http://www.philipk.net/tutorials/modula ... _sets.html

http://www.philipk.net/tutorials/modula ... rocks.html















