Parallax Walls: Light fields from occlusion on height fields
Publication
Computers and Graphics, 37(8), 2013
Authors
Xavier Snelgrove, Thiago Pereira, Wojciech Matusik, Marc Alexa
Abstract
We introduce a simple, inexpensively manufacturable, height field surface geometry that, when appropriately painted, can produce diffuse reflections under ambient lighting approximating a target light field. We demonstrate a light field basis analysis of these surfaces which allows us to formulate the problem as a gamut-mapping, and propose a perceptually motivated metric for bringing complex light fields into gamut while preserving their structure. We show resultant surfaces displaying physical light fields, animations, HDR exposure stacks, and scene relighting.
Paper
Project Website
http://www.sciencedirect.com/science/article/pii/S009784931300112X