Abstract
In this report, we propose a method for computer-generated holograms to calculate phenomena that shadows are on objects, an object is illuminated by lights reflected on another objects, and an object penetrates lights. In order to reconstruct a realistic image from computer-generated hologram, to consider these phenomena is indispensable. To calculate them, this method uses shadows, reflection, and penetration of lights on patches of objects. Additionally, we synthesized computer-generated holograms using proposed method, and confirmed the effectiveness of it.