Area and volume coherence for efficient visualization of 3D scalar functions
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
A coherent projection approach for direct volume rendering
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
Visibility-ordering meshed polyhedra
ACM Transactions on Graphics (TOG)
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
Hierarchical and parallelizable direct volume rendering for irregular and multiple grids
Proceedings of the 7th conference on Visualization '96
An exact interactive time visibility ordering algorithm for polyhedral cell complexes
VVS '98 Proceedings of the 1998 IEEE symposium on Volume visualization
ZSWEEP: an efficient and exact projection algorithm for unstructured volume rendering
VVS '00 Proceedings of the 2000 IEEE symposium on Volume visualization
Hardware-accelerated volume and isosurface rendering based on cell-projection
Proceedings of the conference on Visualization '00
R-buffer: a pointerless A-buffer hardware architecture
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware
Parallelizing a high accuracy hardware-assisted volume renderer for meshes with arbitrary polyhedra
PVG '01 Proceedings of the IEEE 2001 symposium on parallel and large-data visualization and graphics
Tetrahedral projection using vertex shaders
VVS '02 Proceedings of the 2002 IEEE symposium on Volume visualization and graphics
Hardware-based view-independent cell projection
VVS '02 Proceedings of the 2002 IEEE symposium on Volume visualization and graphics
Cell-projection of cyclic meshes
Proceedings of the conference on Visualization '01
Optical Models for Direct Volume Rendering
IEEE Transactions on Visualization and Computer Graphics
A High Accuracy Volume Renderer for Unstructured Data
IEEE Transactions on Visualization and Computer Graphics
Transparency and Antialiasing Algorithms Implemented with the Virtual Pixel Maps Technique
IEEE Computer Graphics and Applications
Out-Of-Core Rendering of Large, Unstructured Grids
IEEE Computer Graphics and Applications
The A -buffer, an antialiased hidden surface method
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
An architecture for interactive tetrahedral volume rendering
VG'01 Proceedings of the 2001 Eurographics conference on Volume Graphics
Parallelizing the ZSWEEP algorithm for distributed-shared memory architectures
VG'01 Proceedings of the 2001 Eurographics conference on Volume Graphics
Hierarchichal perspective volume rendering using triangle fans
VG'01 Proceedings of the 2001 Eurographics conference on Volume Graphics
Proceedings of the 2005 symposium on Interactive 3D graphics and games
Hardware-Assisted Visibility Sorting for Unstructured Volume Rendering
IEEE Transactions on Visualization and Computer Graphics
A scalable, hybrid scheme for volume rendering massive data sets
EG PGV'06 Proceedings of the 6th Eurographics conference on Parallel Graphics and Visualization
Hardware-assisted projected tetrahedra
EuroVis'10 Proceedings of the 12th Eurographics / IEEE - VGTC conference on Visualization
Direct volume rendering of unstructured tetrahedral meshes using CUDA and OpenMP
The Journal of Supercomputing
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Projection methods for volume rendering unstructured data work by projecting, in visibility order, the polyhedral cells of the mesh onto the image plane, and incrementally compositing each cell's color and opacity into the final image. Normally, such methods require an algorithm to determine a visibility order of the cells. The Meshed Polyhedra Visibility Order (MPVO) algorithm can provide such an order for convex meshes by considering the implications of local ordering relations between cells sharing a common face. However, in nonconvex meshes, one must also consider ordering relations along viewing rays which cross empty space between cells. In order to include these relations, the algorithm described in this paper, the scanning exact meshed polyhedra visibility ordering (SXMPVO) algorithm, scan-converts the exterior faces of the mesh and saves the ray-face intersections in an A-Buffer data structure which is then used for retrieving the extra ordering relations. The image which SXMPVO produces is the same as would be produced by ordering the cells exactly, even though SXMPVO does not compute an exact visibility ordering. This is because the image resolution used for computing the visibility ordering relations is the same as that which is used for the actual volume rendering and we choose our A-Buffer rays at the same sample points that are used to establish a polygon's pixel coverage during hardware scan conversion. Thus, the algorithm is image-space correct. The SXMPVO algorithm has several desirable features; among them are speed, simplicity of implementation, and no extra (i.e., with respect to MPVO) preprocessing.