A polygonal approximation to direct scalar volume rendering
VVS '90 Proceedings of the 1990 workshop on Volume visualization
Visibility-ordering meshed polyhedra
ACM Transactions on Graphics (TOG)
A volume density optical model
VVS '92 Proceedings of the 1992 workshop on Volume visualization
Sorting and hardware assisted rendering for volume visualization
VVS '94 Proceedings of the 1994 symposium on Volume visualization
Real-time, continuous level of detail rendering of height fields
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
ROAMing terrain: real-time optimally adapting meshes
VIS '97 Proceedings of the 8th conference on Visualization '97
SIGGRAPH '85 Proceedings of the 12th annual conference on Computer graphics and interactive techniques
Hardware-accelerated volume and isosurface rendering based on cell-projection
Proceedings of the conference on Visualization '00
High-quality pre-integrated volume rendering using hardware-accelerated pixel shading
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware
High-quality unstructured volume rendering on the PC platform
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS conference on Graphics hardware
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
Hardware-accelerated real-time rendering of gaseous phenomena
Journal of Graphics Tools
Optical Models for Direct Volume Rendering
IEEE Transactions on Visualization and Computer Graphics
Interactive Maximum Projection Volume Rendering
VIS '95 Proceedings of the 6th conference on Visualization '95
An architecture for interactive tetrahedral volume rendering
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
Hardware-Assisted Visibility Sorting for Unstructured Volume Rendering
IEEE Transactions on Visualization and Computer Graphics
A Generic and Scalable Pipeline for GPU Tetrahedral Grid Rendering
IEEE Transactions on Visualization and Computer Graphics
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
NDVI-based vegetation rendering
CGIM '07 Proceedings of the Ninth IASTED International Conference on Computer Graphics and Imaging
Sorting-free pre-integrated projected tetrahedra
Proceedings of the 2009 Workshop on Ultrascale Visualization
Level-of-detail rendering of large-scale irregular volume datasets using particles
Journal of Computer Science and Technology
High-quality particle-based volume rendering for large-scale unstructured volume datasets
Journal of Visualization
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Finite element methods commonly use unstructured grids as the computational domain. As a matter of fact, the volume visualization of these unstructured grids is a time consuming task. Here, the fastest known object order algorithm is the projected tetrahedra algorithm of Shirley and Tuchman. Even with the upcoming of programmable graphics hardware, the rendering performance did not keep up with the growing complexity of the simulation data. In this paper we strive to improve the performance of the cell projection technique by posing several restrictions on the optical model. This allows us to devise a simple but fast hardware-accelerated algorithm which is able to project arbitrary polyhedral cells, that is tetrahedra, prisms, hexahedra, etc. For this reason, our algorithm is well suited for the display of unstructured FEM meshes with mixed cell types, but it is also applicable to the real-time display of gaseous phenonema, such as fire and ground fog.