Question for Paqs Modeling technique. Does everythng have "thickness" as in real life, or do you just use "surfaces" in some areas.

In other words, if you had say a "heat gaurd" that covered an exaust pipe, in reallife it might be 3 mm thick chrome. You could design sheet of 3 mm thick material or just make surface shape, no thickness and apply material at render time..

Any insight is appreciated.

Burr