3D models are created by manipulating polygon meshes and molding them into objects, characters and scenes. 3D art is used in everything from print ads, Web sites, television, movies, video games and beyond.
So, what does it take to be a 3D artist? Well, obviously, you must have an eye for art. Most people who begin learning 3D have some kind of background in drawing and sketching. It's not unheard of for 3D studios to hire artists who have no experience in 3D, based solely on the strength of a pencil drawing portfolio. Sculptors, who were previously limited to animatronics and claymation (clay animation), also tend to make an easier transition to 3D.
Even if you don't have formal art training that goes beyond the few classes you took in high school or college you can still do great work in 3D