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Real time ambient occlusion by curvature dependent occlusion function

Published: 12 December 2011 Publication History

Abstract

We present the novel technique to compute ambient occlusion [2008] on real-time graphics hardware. Because current real-time ambient occlusion techniques like SSAO need at least 16 rays sampling and too high computational cost to implement on computer games. Our method approximates occlusion as a local illumination model by introducing curvature-dependent function.

References

[1]
Akenine-Möller, T., Haines, E., and Hoffman, N. 2008. Real-Time Rendering 3rd Edition. A. K. Peters, Ltd., Natick, MA, USA.
[2]
Bavoil, L., Sainz, M., and Dimitrov, R. 2008. Image-space horizon-based ambient occlusion. In ACM SIGGRAPH 2008 talks, ACM, New York, NY, USA, SIGGRAPH '08, 22:1--22:1.
[3]
Hattori, T., Kubo, H., and Morishima, S. 2010. Curvature depended local illumination approximation of ambient occlusion. In ACM SIGGRAPH 2010 Posters, ACM, New York, NY, USA, SIGGRAPH '10, 122:1--122:1.
[4]
Vergne, R., Pacanowski, R., Barla, P., Granier, X., and Schlick, C. 2009. Light warping for enhanced surface depiction. ACM Trans. Graph. 28 (July), 25:1--25:8.

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  • (2017)Screen Space Curvature and Ambient OcclusionComputer Vision, Imaging and Computer Graphics Theory and Applications10.1007/978-3-319-64870-5_3(51-71)Online publication date: 9-Aug-2017

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          cover image ACM Conferences
          SA '11: SIGGRAPH Asia 2011 Posters
          December 2011
          61 pages
          ISBN:9781450311373
          DOI:10.1145/2073304
          Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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          Published: 12 December 2011

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          SA '11
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          SA '11: SIGGRAPH Asia 2011
          December 12 - 15, 2011
          Hong Kong, China

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          Overall Acceptance Rate 178 of 869 submissions, 20%

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          • (2017)Screen Space Curvature and Ambient OcclusionComputer Vision, Imaging and Computer Graphics Theory and Applications10.1007/978-3-319-64870-5_3(51-71)Online publication date: 9-Aug-2017

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