Hierarchical stochastic motion blur rasterization

Summary, in English

We present a hierarchical traversal algorithm for stochastic rasterization of motion blur, which efficiently reduces the number of inside tests needed to resolve spatio-temporal visibility. Our method is based on novel tile against moving primitive tests that also provide temporal bounds for the overlap. The algorithm works entirely in homogeneous coordinates, supports MSAA, facilitates efficient hierarchical spatio-temporal occlusion culling, and handles typical game workloads with widely varying triangle sizes. Furthermore, we use high-quality sampling patterns based on digital nets, and present a novel reordering that allows efficient procedural generation with good anti-aliasing properties. Finally, we evaluate a set of hierarchical motion blur rasterization algorithms in terms of both depth buffer bandwidth, shading efficiency, and arithmetic complexity.

• Author: Jacob Munkberg; Petrik Clarberg; Jon Hasselgren; Robert Toth; Masamichi Sugihara; Tomas Akenine-Möller
• Department/s: ELLIIT: the Linköping-Lund initiative on IT and mobile communication; Department of Computer Science; Parallel Systems
• Publishing year: 2011
• Language: English
• Pages: 107-118
• Publication/Series: HPG '11 Proceedings of the ACM SIGGRAPH Symposium on High Performance Graphics
• Links: http://fileadmin.cs.lth.se/graphics/research/papers/2011/mbtraversal/; http://dx.doi.org/10.1145/2018323.2018341
• Document type: Conference paper
• Publisher: Association for Computing Machinery (ACM)
• Topic: Computer Science
• Conference name: High Performance Graphics, 2011
• Conference date: 2011-08-05 - 2011-08-07
• Conference place: Vancouver, Canada
• Status: Published
• Research group: Computer Graphics
• ISBN/ISSN/Other: ISBN: 978-1-4503-0896-0