ManyLoDs: Parallel Many-View Level-of-Detail Selection for Real-Time Global Illumination

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Date
2011
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association and Blackwell Publishing Ltd.
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.
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@article{
:10.1111/j.1467-8659.2011.01982.x
, journal = {Computer Graphics Forum}, title = {{
ManyLoDs: Parallel Many-View Level-of-Detail Selection for Real-Time Global Illumination
}}, author = {
Holländer, Matthias
and
Ritschel, Tobias
and
Eisemann, Elmar
and
Boubekeur, Tamy
}, year = {
2011
}, publisher = {
The Eurographics Association and Blackwell Publishing Ltd.
}, ISSN = {
1467-8659
}, DOI = {
/10.1111/j.1467-8659.2011.01982.x
} }
Citation