The document explains the concept of 3D objects as representations of solid forms in a virtual space, highlighting the mathematical processes involved in creating 3D structures. It discusses the various applications of 3D rendering in fields such as art, gaming, and engineering, while outlining tools and features available in Autodesk Maya for creating and managing 3D scenes. Key tools mentioned include the attribute editor, channel panel, and different viewport layouts for manipulating objects within a Maya scene.