An efficient 3-D visualization technique for finite element models and other coarse volumes
SIGGRAPH '89 Proceedings of the 16th annual conference on Computer graphics and interactive techniques
Footprint evaluation for volume rendering
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
Raytracing irregular volume data
VVS '90 Proceedings of the 1990 workshop on Volume visualization
A polygonal approximation to direct scalar volume rendering
VVS '90 Proceedings of the 1990 workshop on Volume visualization
Hierarchical splatting: a progressive refinement algorithm for volume rendering
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
Sorting and hardware assisted rendering for volume visualization
VVS '94 Proceedings of the 1994 symposium on Volume visualization
Hardware assisted volume rendering of unstructured grids by incremental slicing
Proceedings of the 1996 symposium on Volume visualization
3D shock wave visualization on unstructured grids
Proceedings of the 1996 symposium on Volume visualization
Hierarchical and parallelizable direct volume rendering for irregular and multiple grids
Proceedings of the 7th conference on Visualization '96
PRS '97 Proceedings of the IEEE symposium on Parallel rendering
The VSBUFFER: visibility ordering of unstructured volume primitives by polygon drawing
VIS '97 Proceedings of the 8th conference on Visualization '97
Simplification of tetrahedral meshes
Proceedings of the conference on Visualization '98
Parallel visualization of large-scale aerodynamics calculations: a case study on the Cray T3E
PVGS '99 Proceedings of the 1999 IEEE symposium on Parallel visualization and graphics
Multiresolution techniques for interactive texture-based volume visualization
VIS '99 Proceedings of the conference on Visualization '99: celebrating ten years
VIS '99 Proceedings of the conference on Visualization '99: celebrating ten years
ZSWEEP: an efficient and exact projection algorithm for unstructured volume rendering
VVS '00 Proceedings of the 2000 IEEE symposium on Volume visualization
Simplification of Tetrahedral meshes with accurate error evaluation
Proceedings of the conference on Visualization '00
On-the-Fly rendering of losslessly compressed irregular volume data
Proceedings of the conference on Visualization '00
Hardware-accelerated volume and isosurface rendering based on cell-projection
Proceedings of the conference on Visualization '00
Splatting of Non Rectilinear Volumes Through Stochastic Resampling
IEEE Transactions on Visualization and Computer Graphics
Multiresolution Representation and Visualization of Volume Data
IEEE Transactions on Visualization and Computer Graphics
A High Accuracy Volume Renderer for Unstructured Data
IEEE Transactions on Visualization and Computer Graphics
Volume Visualization of Sparse Irregular Meshes
IEEE Computer Graphics and Applications
Out-Of-Core Rendering of Large, Unstructured Grids
IEEE Computer Graphics and Applications
SIGGRAPH '83 Proceedings of the 10th annual conference on Computer graphics and interactive techniques
View-dependent multiresolution splatting of non-uniform data
VISSYM '02 Proceedings of the symposium on Data Visualisation 2002
Interactive visualization of unstructured grids using hierarchical 3D textures
VVS '02 Proceedings of the 2002 IEEE symposium on Volume visualization and graphics
A hardware-assisted hybrid rendering technique for interactive volume visualization
VVS '02 Proceedings of the 2002 IEEE symposium on Volume visualization and graphics
Visualizing Time-Varying Volume Data
Computing in Science and Engineering
Advanced visualization technology for terascale particle accelerator simulations
Proceedings of the 2002 ACM/IEEE conference on Supercomputing
Hierarchical Splatting of Scattered 4D Data
IEEE Computer Graphics and Applications
Comparative Flow Visualization
IEEE Transactions on Visualization and Computer Graphics
LoD Volume Rendering of FEA Data
VIS '04 Proceedings of the conference on Visualization '04
Hardware-Accelerated Particle-Based Volume Rendering for Multiple Irregular Volumes
ISVC '08 Proceedings of the 4th International Symposium on Advances in Visual Computing, Part II
Level-of-detail rendering of large-scale irregular volume datasets using particles
Journal of Computer Science and Technology
EUROVIS'07 Proceedings of the 9th Joint Eurographics / IEEE VGTC conference on Visualization
GPU-accelerated volume splatting with elliptical RBFs
EUROVIS'06 Proceedings of the Eighth Joint Eurographics / IEEE VGTC conference on Visualization
High-quality particle-based volume rendering for large-scale unstructured volume datasets
Journal of Visualization
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We present techniques for multiresolution approximation and hardware-assisted splat based rendering to achieve interactive volume visualization of large irregular data sets. We examine two methods of generating multiple resolutions of irregular volumetric grids and a data structure supporting the splatting approach for volume rendering. These techniques are implemented in combination with a view-dependent error based resolution selection to maintain accuracy at both low and high zoom levels. In addition, the error tolerance may be adjusted at run time to obtain the desired balance between high frame rates and accurate rendering. Along with an effective way to compute gradients for lighting, we offer an integrated solution for interactive volume rendering of irregular-mesh or meshless data, and we demonstrate our technique on unstructured-grid data sets from aerodynamic flow simulations.