%0 Conference Paper %1 Widmer:ea:2015 %A Widmer, S. %A Pajak, D. %A Schulz, A. %A Pulli, K. %A Kautz, J. %A Goesele, M. %A Luebke, D. %B Proceedings of the 7th Conference on High-Performance Graphics %C New York, NY, USA %D 2015 %I ACM %K raytracing reflection screenspace ssrt %P 67--76 %R 10.1145/2790060.2790069 %T An Adaptive Acceleration Structure for Screen-space Ray Tracing %X We propose an efficient acceleration structure for real-time screen-space ray tracing. The hybrid data structure represents the scene geometry by combining a bounding volume hierarchy with local planar approximations. This enables fast empty space skipping while tracing and yields exact intersection points for the planar approximation. In combination with an occlusion-aware ray traversal our algorithm is capable to quickly trace even multiple depth layers. Compared to prior work, our technique improves the accuracy of the results, is more general, and allows for advanced image transformations, as all pixels can cast rays to arbitrary directions. We demonstrate real-time performance for several applications, including depth-of-field rendering, stereo warping, and screen-space ray traced reflections. %@ 978-1-4503-3707-6

@inproceedings{Widmer:ea:2015, abstract = {We propose an efficient acceleration structure for real-time screen-space ray tracing. The hybrid data structure represents the scene geometry by combining a bounding volume hierarchy with local planar approximations. This enables fast empty space skipping while tracing and yields exact intersection points for the planar approximation. In combination with an occlusion-aware ray traversal our algorithm is capable to quickly trace even multiple depth layers. Compared to prior work, our technique improves the accuracy of the results, is more general, and allows for advanced image transformations, as all pixels can cast rays to arbitrary directions. We demonstrate real-time performance for several applications, including depth-of-field rendering, stereo warping, and screen-space ray traced reflections.}, acmid = {2790069}, added-at = {2015-09-18T18:31:55.000+0200}, address = {New York, NY, USA}, author = {Widmer, S. and Paj\k{a}k, D. and Schulz, A. and Pulli, K. and Kautz, J. and Goesele, M. and Luebke, D.}, biburl = {https://www.bibsonomy.org/bibtex/20012eeb5bcd026e5be32984299f79b29/ledood}, booktitle = {Proceedings of the 7th Conference on High-Performance Graphics}, description = {An adaptive acceleration structure for screen-space ray tracing}, doi = {10.1145/2790060.2790069}, interhash = {62bdb1ff8c975bb2a5c7173af7159174}, intrahash = {0012eeb5bcd026e5be32984299f79b29}, isbn = {978-1-4503-3707-6}, keywords = {raytracing reflection screenspace ssrt}, location = {Los Angeles, California}, numpages = {10}, pages = {67--76}, publisher = {ACM}, series = {HPG '15}, timestamp = {2016-04-29T16:05:49.000+0200}, title = {An Adaptive Acceleration Structure for Screen-space Ray Tracing}, year = 2015 }