2D and 3D systems

A 2D system involves objects primarily defined by two measurements: length and width, like a drawing on paper or a flat screen. It has only two dimensions: x (horizontal) and y (vertical). A 3D system adds depth (z-axis), allowing objects to have volume and occupy space, like real-world objects or 3D models. Think of a 2D image as flat and a 3D model as a tangible object you can rotate and view from different angles. The key difference is that 3D systems capture the full spatial characteristics of objects, while 2D systems do not.