it's largely figuring out how to fake it. i think everyone ends up with a different way, because there is no "right" way that really works in SL

(i'm not 100% happy with mine yet, the base of it is multiple matcap bakes. i've tried some other techniques, some of which were more "real"- they weren't any better, and usually significantly worse.)

ugh ya it is pretty infuriating. everytime i make a material that does it, it NEVER bakes. it is always flat.

yeeeah, hence the faking. a LOT of things do not bake