Using a 3-D modeler, print or plot pictorial wireframe views from at least three different quadrants (i.e., front/top/right side faces, back/bottom/left side faces, etc.) of models you have made.
a. Using tracing paper, trace just those lines that would be visible from the chosen point of view.
b. On the tracings done in part (a), simulate a shading model. Choose a direction of a single light source, and shade the visible faces the appropriate value level, using pencils. Simulate at least two different light positions for each pictorial view.