Record Details


Field	Value

Title	Rendering Wave Effects with Augmented Light Field

Creator	OH, SB KASHYAP, S GARG, R CHANDRAN, S RASKAR, R

Subject	wigner functions radiometry coherence space

Description	Ray-based representations can model complex light transport but are limited in modeling diffraction effects that require the simulation of wavefront propagation. This paper provides a new paradigm that has the simplicity of light path tracing and yet provides an accurate characterization of both Fresnel and Fraunhofer diffraction. We introduce the concept of a light field transformer at the interface of transmissive occluders. This generates mathematically sound, virtual, and possibly negative-valued light sources after the occluder. From a rendering perspective the only simple change is that radiance can be temporarily negative. We demonstrate the correctness of our approach both analytically, as well by comparing values with standard experiments in physics such as the Young's double slit. Our implementation is a shader program in OpenGL that can generate wave effects on arbitrary surfaces.

Publisher	WILEY-BLACKWELL PUBLISHING, INC

Date	2011-09-01T12:26:21Z 2011-12-26T12:59:39Z 2011-12-27T05:52:12Z 2011-09-01T12:26:21Z 2011-12-26T12:59:39Z 2011-12-27T05:52:12Z 2010

Type	Article

Identifier	COMPUTER GRAPHICS FORUM, 29(2), 507-516 0167-7055 http://dx.doi.org/10.1111/j.1467-8659.2009.01620.x http://dspace.library.iitb.ac.in/xmlui/handle/10054/12778 http://hdl.handle.net/10054/12778

Language	en

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