Prior to 2007, 3D modeling in AutoCAD was clunky. The 2007 release introduced the (a contextual palette that later became the Ribbon) and improved visual styles like Conceptual and Realistic . It was the first version where 3D wasn't an afterthought.
: Users could now apply naming-specific visual styles, such as "conceptual" or "realistic," which allowed for real-time shadows and transparency while working. Dynamic Interaction autocad 2007 en ingles exclusive