Although clothing tends to cover up the forms we discussed in the last chapter, those underlying forms are what dictate the patterns of folds as the cloth is supported and suspended over the figure.
Regardless of the sheerness or heaviness of the cloth, garments follow the contours of the underlying form in areas where the clothes are clinging to the body, be it due to gravity or because the fabric is being pulled and stretched against the figure. Therefore, even when drawing a clothed figure, you must first work out the volumes of the body as if your subject were nude, then you will have a framework on which to convincingly hang the costume.
DRAPERY FOLLOWS FORM
Notice how in this sketch all the fabric and folds of this ...