The design and analysis of spatial data structures
The design and analysis of spatial data structures
A polygonal approximation to direct scalar volume rendering
VVS '90 Proceedings of the 1990 workshop on Volume visualization
Management of large amounts of data in interactive building walkthroughs
I3D '92 Proceedings of the 1992 symposium on Interactive 3D graphics
Interactive out-of-core isosurface extraction
Proceedings of the conference on Visualization '98
MMR: an interactive massive model rendering system using geometric and image-based acceleration
I3D '99 Proceedings of the 1999 symposium on Interactive 3D graphics
Out-of-core simplification of large polygonal models
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Hierarchical geometric models for visible surface algorithms
Communications of the ACM
Chromium: a stream-processing framework for interactive rendering on clusters
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Integrating occlusion culling with view-dependent rendering
Proceedings of the conference on Visualization '01
Out-of-core rendering of massive geometric environments
Proceedings of the conference on Visualization '02
Out-Of-Core Rendering of Large, Unstructured Grids
IEEE Computer Graphics and Applications
External Memory Management and Simplification of Huge Meshes
IEEE Transactions on Visualization and Computer Graphics
Selective Refinement Queries for Volume Visualization of Unstructured Tetrahedral Meshes
IEEE Transactions on Visualization and Computer Graphics
Hardware-Assisted Visibility Sorting for Unstructured Volume Rendering
IEEE Transactions on Visualization and Computer Graphics
Visibility-Based Prefetching for Interactive Out-Of-Core Rendering
PVG '03 Proceedings of the 2003 IEEE Symposium on Parallel and Large-Data Visualization and Graphics
PVG '03 Proceedings of the 2003 IEEE Symposium on Parallel and Large-Data Visualization and Graphics
Hardware-Based Ray Casting for Tetrahedral Meshes
Proceedings of the 14th IEEE Visualization 2003 (VIS'03)
Progressive Volume Rendering of Large Unstructured Grids
IEEE Transactions on Visualization and Computer Graphics
A survey of visibility for walkthrough applications
IEEE Transactions on Visualization and Computer Graphics
Out-of-core simplification and crack-free LOD volume rendering for irregular grids
EuroVis'10 Proceedings of the 12th Eurographics / IEEE - VGTC conference on Visualization
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We present iRun, a system for interactively volume rendering large unstructured grids on commodity PCs. Rendering arbitrarily large datasets has been an active area of research for many years. However, the techniques required for polygonal data do not directly apply to the more complex problem of unstructured grids. In this paper, we describe the data structures and algorithms necessary to store large datasets on disk, keep an active portion of the dataset in main memory, and render visible regions to one or more displays. Our system leverages a combination of out-of-core data management, distributed rendering, hardware-accelerated volume rendering, and dynamic level-of-detail. On a commodity PC, our system can preprocess a dataset consisting of about 36 million tetrahedra in about an hour and can render it interactively with one or more PCs.