In this tutorial Rob Redman shows you how to use the cloth engine with a basic primitive object to create a scatter cushion for an architectural render. For a nice, simple addition he also shows you how to use the hair module to add a fluffy fringe to the seams.
Well. Curtains. It takes a whole lot longer for me to explain to you how to create curtains with 3ds Max Cloth modifier than it does for you to actually do it. Once you understand the basics and do a few curtains yourself, you’ll see that it’s really rather easy. I’m going to show you how to create a curtain panel that is gathered as if on a curtain rod, and that puddles on the floor.