Reflective Shadow Map Clustering for Real-Time Global Illumination
Karlsruhe Institute of Technology, Germany
EUROGRAPHICS, 2012
@article{prutkin2012reflective,
title={Reflective Shadow Map Clustering for Real-Time Global Illumination},
author={Prutkin, R. and Kaplanyan, A. and Dachsbacher, C.},
year={2012}
}
We present a method for real-time clustering of VPLs obtained from Reflective Shadow Maps (RSM). The clusters are treated as area light sources and used to approximate indirect illumination. The spatial extent of a cluster is used to deduce the shape and size of the respective area light source. Our method is fully GPU-based and avoids flickering by temporally coherent reinitialization of the clustering. It also incorporates importance sampling for view-dependent clustering. We show visually indistinguishable results of indirect illumination with only a fraction of secondary light sources.
February 15, 2012 by hgpu
