Though a computer monitor’s display is a two-dimensional plane, 3D computer graphics programs can produce images of objects that appear to be three dimensional. Creating 3D graphics is typically a three step process. First, the object’s shape is described in a process called modeling. Then designers determine the object’s motion and placement within a scene. Lastly, the model is given its final appearance in the rendering process. The term “computer graphics” was coined in the 1960s by whom? Discuss