A Compressed Depth Cache
Författare
Summary, in English
We propose a depth cache that keeps the depth data in compressed format, when possible. Compared to previous work, this requires a more flexible cache implementation, where a tile may occupy a variable number of cache lines depending on whether it can be compressed or not. The advantage of this is that the effective cache size increases proportionally to the compression ratio. We show that the depth-buffer bandwidth can be reduced, on average, by 17%, compared to a system compressing the data after the cache. Alternatively, and perhaps more interestingly, we show that pre-cache compression in all cases increases the effective cache size by a factor of two or more, compared to a post-cache compressor, at equal or higher performance.
Avdelning/ar
Publiceringsår
2012
Språk
Engelska
Sidor
101-118
Publikation/Tidskrift/Serie
Journal of Computer Graphics Techniques
Volym
1
Issue
1
Länkar
Dokumenttyp
Artikel i tidskrift
Förlag
Williams College
Ämne
- Computer Science
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 2331-7418