Shadowed Relighting of Dynamic Geometry with 1D BRDFs

Derek Nowrouzezahrai, Evangelos Kalogerakis, Patricio Simari, Eugene Fiume
Proceedings of Eurographics Short Papers (2008)

Abstract

We present a method for synthesizing the dynamic self-occlusion of an articulating character in real-time (> 170Hz) while incorporating reflection effects from 1D BRDFs under dynamic lighting and view conditions. We introduce and derive a general operator form for convolving spherical harmonics (SH) occlusion vectors with arbitrary 1D BRDF kernels. This operator, coupled with a compact linear model for predicting SH occlusion over articulating meshes, segments the BRDF and visibility terms of the direct illumination integral. We illustrate our results on a thin-membrane translucency model and the normalized Phong BRDF.

Links

BIBTEX

@article{ NKSF08,
author = “Nowrouzezahrai, Derek and Kalogerakis, Evangelos and Simari, Patricio and Fiume, Eugene”,
title = “Shadowed Relighting of Dynamic Geometry with 1D BRDFs”,
journal = “Proceedings of Eurographics Short Papers”,
month = jan,
year = “2008”,
}
© Derek Nowrouzezahrai 2005 - 2012