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CGF
2008
139views more  CGF 2008»
14 years 12 months ago
CHC++: Coherent Hierarchical Culling Revisited
We present a new algorithm for efficient occlusion culling using hardware occlusion queries. The algorithm significantly improves on previous techniques by making better use of te...
Oliver Mattausch, Jirí Bittner, Michael Wim...
EDBT
2004
ACM
129views Database» more  EDBT 2004»
15 years 12 months ago
Beyond 1-Safety and 2-Safety for Replicated Databases: Group-Safety
In this paper, we study the safety guarantees of group communication-based database replication techniques. We show that there is a model mismatch between group communication and ...
Matthias Wiesmann, André Schiper
NPAR
2010
ACM
15 years 4 months ago
Detail-preserving paint modeling for 3D brushes
Recent years have witnessed significant advances in 3D brush modeling and simulation in digital paint tools. Compared with traditional 2D brushes, a 3D brush can be both more intu...
Nelson Siu-Hang Chu, William Baxter, Li-Yi Wei, Na...
PADL
2009
Springer
16 years 14 days ago
Layered Models Top-Down Querying of Normal Logic Programs
Abstract. For practical applications, the use of top-down query-driven proofprocedures is essential for an efficient use and computation of answers using Logic Programs as knowledg...
Alexandre Miguel Pinto, Luís Moniz Pereira
DOLAP
2006
ACM
15 years 5 months ago
Towards a logical multidimensional model for spatial data warehousing and OLAP
Decision support systems (DSS) may be enhanced qualitatively if they are able to also deal with spatial dimensions and measures. Regardless the evident importance of using data wa...
Marcus Costa Sampaio, Andre Gomes de Sousa, Cl&aac...