Why learn product design hand drawing

Shangfang Industrial Design Education In product design, hand-drawing is the source of design, hand-drawing is the book of design, so design and hand-drawing can not be separated. Today, many people do not know why practice hand-drawing, only thought that hand-drawing is just to draw a rendering, and the essence of the real design hand-drawing lies in the bare hands to express their own conceptual thinking, to think of something through the correct perspective structure and material expression, this design hand-drawing called concept sketches, does not matter if the lines are good or bad, put aside all the bars and boxes, with their own heart to express your ideas, so that the design of the Source, this time the program is the most original and best concept. Concept sketch is characterized by fast, as much as possible to think to draw, do not need to draw too fine, too tangled, because this is the pre-sketch, simple generalization of the expression on the line. After a large number of concept sketches out, then go to the concept sketches in the choice of a better program, to push the details, proportion and so on. Then the program is more refined and more perfect. Finally is to draw the effect, effect as long as the correct expression of material light and shadow and structure perspective is no problem, so the best drawing or the last one, because the most one can be replaced by the computer, and the former can not be replaced by the computer. So the purpose of learning design hand drawing is to enable designers to visualize and image the concepts in their heads by means of the pen. This language is essential for designers.