Selected Bibliography Architectural Graphics | Page 157

SHADE & SHADOWS • Ashadow's profile is continuous, except where interrupted by a surface in light. • A shadow's profile changes direction with every change in form that receives the shadow. • Cast shadows anchor an object to the surface on which it sits. • Cast shadows reveal the distance between a form and the surface upon which it is cast . • Cast shadows clarify the form of the surface upon which they are cast. RENDERING TON AL VALUES I 151