Stochastic simplification of aggregate detail
ACM SIGGRAPH 2007 papers
Efficient data reduction and cache-coherent techniques toward real-time performance
ACM SIGGRAPH 2007 courses
Massive-Model Rendering Techniques: A Tutorial
IEEE Computer Graphics and Applications
Exploring a Boeing 777: Ray Tracing Large-Scale CAD Data
IEEE Computer Graphics and Applications
Technical strategies for massive model visualization
Proceedings of the 2008 ACM symposium on Solid and physical modeling
Massive model visualization techniques: course notes
ACM SIGGRAPH 2008 classes
Accelerating shadow rays using volumetric occluders and modified kd-tree traversal
Proceedings of the Conference on High Performance Graphics 2009
PantaRay: fast ray-traced occlusion caching of massive scenes
ACM SIGGRAPH 2010 papers
Memory efficient ray tracing with hierarchical mesh quantization
Proceedings of Graphics Interface 2010
Razor: An architecture for dynamic multiresolution ray tracing
ACM Transactions on Graphics (TOG)
Interactive Ray Tracing of Large Models Using Voxel Hierarchies
Computer Graphics Forum
Geometry Presorting for Implicit Object Space Partitioning
Computer Graphics Forum
ReduceM: interactive and memory efficient ray tracing of large models
EGSR'08 Proceedings of the Nineteenth Eurographics conference on Rendering
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We present a novel LOD (level-of-detail) algorithm to accelerate ray tracing of massive models. Our approach computes drastic simplifications of the model and the LODs are well integrated with the kd-tree data structure. We introduce a simple and efficient LOD metric to bound the error for primary and secondary rays. The LOD representation has small runtime overhead and our algorithm can be combined with ray coherence techniques and cache-coherent layouts to improve the performance. In practice, the use of LODs can alleviate aliasing artifacts and improve memory coherence. We implement our algorithm on both 32-bit and 64-bit machines and are able to achieve up to 2–20 times improvement in frame rate of rendering models consisting of tens or hundreds of millions of triangles with little loss in image quality.