Occlusion Ratio: a new Query Parameter for GPUs

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Date
2009
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
This work suggests improvements that can be added to current GPUs and graphic rendering APIs to increase occlusion culling performance, that is, to raise the frame rate that can be achieved using hardware occlusion queries. The proposal can be easily implemented in current GPU architectures. It extends the concept of object relevance in an image and introduces the occlusion ratio parameter. Numerical tests have been carried out using pre-processed data to demonstrate our proposal. These tests show that 800% mean frame rate improvements could be achieved if occlusion queries to the GPU would return occlusion ratio data. Moreover, in low occlusion density situations -worst cases with 60-80 percent objects visible-, results show that occlusion ratio data provides 60-400 percent improvements in the frame rate.
Description

        
@inproceedings{
:10.2312/LocalChapterEvents/CEIG/CEIG09/085-093
, booktitle = {
CEIG 09 - Congreso Espanol de Informatica Grafica
}, editor = {
Carlos Andujar and Javier Lluch
}, title = {{
Occlusion Ratio: a new Query Parameter for GPUs
}}, author = {
Mansa, Ignacio
and
Amundarain, Aiert
and
Matey, Luis
and
García-Alonso, Alex
}, year = {
2009
}, publisher = {
The Eurographics Association
}, ISBN = {
978-3-905673-72-2
}, DOI = {
/10.2312/LocalChapterEvents/CEIG/CEIG09/085-093
} }
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