Talks and Poster Presentations (with Proceedings-Entry):

V. Havran, J. Bittner, R. Herzog, H.-P. Seidel:
"Ray Maps for Global Illumination";
Talk: Eurographics Symposium on Rendering, Konstanz, Germany; 2005-06-29 - 2005-07-01; in: "Rendering Techniques 2005", K. Bala, Ph. Dutré (ed.); Eurographics Association, (2005), ISBN: 3-905673-23-1; 43 - 54.

English abstract:
We describe a novel data structure for representing light transport called ray map. The ray map extends the concept of photon maps: it stores not only photon impacts but the whole photon paths. We demonstrate the utility of ray maps for global illumination by eliminating boundary bias and reducing topological bias of density estimation in global illumination. Thanks to the elimination of boundary bias we could use ray maps for fast direct visualization with the image quality being close to that obtained by the expensive nal gathering step. We describe in detail our implementation of the ray map using a lazily constructed kD-tree. We also present several optimizations bringing the ray map query performance close to the performance of the photon map.

Online library catalogue of the TU Vienna:

Related Projects:
Project Head Michael Wimmer:
EU Game Tools

Created from the Publication Database of the Vienna University of Technology.