The previous articles on modeling dealt with the practicalities — how one goes about modeling via form over value, and value over form. This article explains the history and reasonings behind those two approaches. I refer to their adherents as the artists of the mind and the artists of the eye.
Most Sight-Size trained artists model using the value over form approach. Modeling in this way helps the artist maintain the big-look (which is representing the image as a whole ensemble), as well as the unity of effect. This approach naturally reduces the chance of falling into piecemeal seeing.
Modeling is the act of turning form through value or line, a process which is integral to representing your impression of the scene as well as the illusion of form. Although there is some crossover, there are essentially two approaches to modeling: form over value, and value over form. As its name implies, form over value modeling tends to prioritize the representation of form over that of value. The opposite is true for value over form modeling.
In setting out a drawing, this fixing of certain salient points is the first thing for the student to do . . . The next thing to do is to block out the spaces corresponding to those occupied by the model in the field of your vision.