Publication
Diffraction Shaders
Abstract
The reflection of light from surfaces is a fundamental problem in computer graphics. Although many reflection models have been 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 example of a surface which exhibits diffraction is the compact disk. A characteristic of such surfaces is that they reflect light in a very colorful manner. Our model is also a generalization of most reflection models encountered in computer graphics. In particular, we extend the He-Torrance model to handle anisotropic reflections. This is achieved by rederiving, in a more general setting, results from surface wave physics which were taken for granted by other researchers. Specifically, our use of Fourier analysis has enabled us to tackle the difficult task of analyticallycomputing the Kirchhoff integral of surface scattering.
Download publicationRelated Resources
See what’s new.
1988
Rendu realiste de surfaces par la methode du ray tracingLe probleme est de representer une scene sur un plan de projection (…
1997
The Rockin’Mouse: Integral 3D manipulation on a planeA novel input device called the Rockin’Mouse is described and…
Get in touch
Something pique your interest? Get in touch if you’d like to learn more about Autodesk Research, our projects, people, and potential collaboration opportunities.
Contact us