Diffraction shaders

摘要

The reflection of light from surfaces is a fundamental problem in computer graphics.Although many reflectin models have bene proposed,few take into account the wave nature of light.In this paper,we derive a new class of reflection models for metallic surfaces that handle the effects of diffraction.Diffraction is a purely wave-like phenomenon and cannot be properly modeled using the ray theory of light alone.A common exampel of a surface which exhibits diffraction is the compact disk.