filename : ZIE08a.pdf entry : article conference : Eurographics 2008, Crete, Greece, 14-18 April 2008 pages : 211-220 year : 2008 month : April title : Lighting and Occlusion in a Wave-Based Framework subtitle : author : Remo Ziegler, Simone Croci, Markus Gross booktitle : Computer Graphics Forum (Proceedings of Eurographics 2008) ISSN/ISBN : 0167-7055 editor : D. Cohen-Or and P. Slavik publisher : The Eurographics Association and Blackwell Publishing 2008 publ.place : Oxford, UK volume : 27 issue : 2 language : english keywords : Holography, Lighting, Wave-based Occlusion abstract : We present novel methods to enhance Computer Generated Holography (CGH) by introducing a complex-valued wave-based occlusion handling method. This offers a very intuitive and efficient interface to introduce optical elements featuring physically-based light interaction exhibiting depth-of-field, diffraction, and glare effects. Fur-thermore, an efficient and flexible evaluation of lit objects on a full-parallax hologram leads to more convincing images. Previous illumination methods for CGH are not able to change the illumination settings of rendered holo-grams. In this paper we propose a novel method for real-time lighting of rendered holograms in order to change the appearance of a previously captured holographic scene. These functionalities are features of a bigger wave-based rendering framework which can be combined with 2D framebuffer graphics. We present an algorithm which uses graphics hardware to accelerate the rendering.