A freelance 3D designer participates in creative projects for clients in computer animation, video game production, and television, film, and web series productions. Other 3D designers contract with architectural firms, construction companies, and product design and manufacturing companies to provide 3D visual renderings of building designs or manufacturing schematics. If you work in entertainment, your responsibilities are to take directions from creative designers and producers to develop artwork for those projects, using 3D design software. For production or construction projects, you have similar duties, rendering prototypes or potential designs in AutoCAD or other software.