3D vs. Stereoscopy
3D can refer to 3D computer graphics and Stereoscopy.
The process of creating 3D computer graphics can be sequentially divided into three basic phases:
3D modeling which describes the process of forming the shape of an object, layout and animation which describes the motion and placement of objects within a scene, and 3D rendering which produces an image of an object.
Stereoscopy, any technique capable of recording three-dimensional visual information or creating the illusion of depth in an image.
The image below shows a combination of a 3D computer graphic as a Stereoscopic image.