Please use this identifier to cite or link to this item:
https://doi.org/10.1145/1889863.1889885
DC Field | Value | |
---|---|---|
dc.title | Multi-resolution screen-space ambient occlusion | |
dc.contributor.author | Hoang, T.-D. | |
dc.contributor.author | Low, K.-L. | |
dc.date.accessioned | 2013-07-04T08:06:37Z | |
dc.date.available | 2013-07-04T08:06:37Z | |
dc.date.issued | 2010 | |
dc.identifier.citation | Hoang, T.-D.,Low, K.-L. (2010). Multi-resolution screen-space ambient occlusion. Proceedings of the ACM Symposium on Virtual Reality Software and Technology, VRST : 101-102. ScholarBank@NUS Repository. <a href="https://doi.org/10.1145/1889863.1889885" target="_blank">https://doi.org/10.1145/1889863.1889885</a> | |
dc.identifier.isbn | 9781450304412 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/40537 | |
dc.description.abstract | We present a new screen-space ambient occlusion algorithm (SSAO), which we call Multi-Resolution Screen-Space Ambient Occlusion (MSSAO). The method computes ambient occlusion by combining occlusion values using multiple mipmap levels of a g-buffer. Our method is based on the observation that occlusion due to further-away occluders are lower frequency and thus can be computed in coarser resolutions. On the other hand, nearby occluders cause higher-frequency occlusion that must be computed in finer resolutions. Our method samples occluders in screen space (similar to [Shanmugam and Arikan 2007]) and combines occlusion values across multiple image resolutions. Compared with two state-of the-art SSAO methods [Filion and McNaughton 2008; Bavoil et al. 2008], results from our algorithm are closer to ray-traced results, even when our algorithm is running at comparable or higher frame rates. Because no random sampling is used, and occlusion values in all levels are combined using edge-preserving blending, our results are free of noise or excessive blurring which are common in other SSAO methods. Copyright © 2010 by the Association for Computing Machinery, Inc. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1145/1889863.1889885 | |
dc.source | Scopus | |
dc.type | Conference Paper | |
dc.contributor.department | COMPUTER SCIENCE | |
dc.description.doi | 10.1145/1889863.1889885 | |
dc.description.sourcetitle | Proceedings of the ACM Symposium on Virtual Reality Software and Technology, VRST | |
dc.description.page | 101-102 | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Staff Publications |
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