NDLI: ManyLoDs: parallel many-view level-of-detail selection for real-time global illumination

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ManyLoDs: parallel many-view level-of-detail selection for real-time global illumination

Content Provider	ACM Digital Library
Author	Eisemann, Elmar Holländer, Matthias Boubekeur, Tamy Ritschel, Tobias
Abstract	Level-of-Detail structures are a key component for scalable rendering. Built from raw 3D data, these structures are often defined as Bounding Volume Hierarchies, providing coarse-to-fine adaptive approximations that are well-adapted for many-view rasterization. Here, the total number of pixels in each view is usually low, while the cost of choosing the appropriate LoD for each view is high. This task represents a challenge for existing GPU algorithms. We propose ManyLoDs, a new GPU algorithm to efficiently compute many LoDs from a Bounding Volume Hierarchy in parallel by balancing the workload within and among LoDs. Our approach is not specific to a particular rendering technique, can be used on lazy representations such as polygon soups, and can handle dynamic scenes. We apply our method to various many-view rasterization applications, including Instant Radiosity, Point-Based Global Illumination, and reflection / refraction mapping. For each of these, we achieve real-time performance in complex scenes at high resolutions.
Starting Page	1233
Ending Page	1240
Page Count	8
ISSN	14678659
DOI	10.1111/j.1467-8659.2011.01982.x
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2011-06-27
Publisher Place	Goslar
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Many-view Level-of-detail Multi-view Real-time Gpu
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Computer Graphics and Computer-Aided Design

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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