Area and volume coherence for efficient visualization of 3D scalar functions
VVS '90 Proceedings of the 1990 workshop on Volume visualization
Fast volume rendering using a shear-warp factorization of the viewing transformation
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Fast sliding thin slab volume visualization
Proceedings of the 1996 symposium on Volume visualization
Fast volume rendering using a shear-warp factorization of the viewing transformation
Fast volume rendering using a shear-warp factorization of the viewing transformation
Proceedings of the 7th conference on Visualization '96
The VolumePro real-time ray-casting system
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
A practical evaluation of popular volume rendering algorithms
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
High-quality pre-integrated volume rendering using hardware-accelerated pixel shading
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on Graphics hardware
Shear-Warp deluxe: the Shear-Warp algorithm revisited
VISSYM '02 Proceedings of the symposium on Data Visualisation 2002
Interactive rendering of atmospheric scattering effects using graphics hardware
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS conference on Graphics hardware
High-quality unstructured volume rendering on the PC platform
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS conference on Graphics hardware
VIZARD II: a reconfigurable interactive volume rendering system
Proceedings of the ACM SIGGRAPH/EUROGRAPHICS conference on Graphics hardware
The parallelization of the perspective shear-warp volume rendering algorithm
EGPGV '02 Proceedings of the Fourth Eurographics Workshop on Parallel Graphics and Visualization
Hardware-based view-independent cell projection
VVS '02 Proceedings of the 2002 IEEE symposium on Volume visualization and graphics
A two-step approach for interactive pre-integrated volume rendering of unstructured grids
VVS '02 Proceedings of the 2002 IEEE symposium on Volume visualization and graphics
The perspective shear-warp algorithm in a virtual environment
Proceedings of the conference on Visualization '01
Interactive rendering of large volume data sets
Proceedings of the conference on Visualization '02
IEEE Transactions on Visualization and Computer Graphics
Adaptive GPU ray casting based on spectral analysis
MIAR'10 Proceedings of the 5th international conference on Medical imaging and augmented reality
Journal of Biomedical Imaging
High-quality shear-warp volume rendering using efficient supersampling and pre-integration technique
ICAT'06 Proceedings of the 16th international conference on Advances in Artificial Reality and Tele-Existence
High-quality lighting and efficient pre-integration for volume rendering
VISSYM'04 Proceedings of the Sixth Joint Eurographics - IEEE TCVG conference on Visualization
Acceleration of opacity correction mechanisms for over-sampled volume ray casting
EG PGV'08 Proceedings of the 8th Eurographics conference on Parallel Graphics and Visualization
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The shear-warp volume rendering algorithm is one of the fastest algorithms for volume rendering, but it achieves this rendering speed only by sacrificing interpolation between the slices of the volume data. Unfortunately, this restriction to bilinear interpolation within the slices severely compromises the resulting image quality. This paper presents the implementation of pre-integrated volume rendering in the shear-warp algorithm for parallel projection to overcome this drawback. A pre-integrated lookup table is used during compositing to perform a substantially improved interpolation between the voxels in two adjacent slices.We discuss the design and implementation of our extension of the shear-warp algorithm in detail. We also clarify the concept of opacity and color correction, and derive the required sampling rate of volume rendering with postclassification. Furthermore, the modified algorithm is compared to the traditional shear-warp rendering approach in terms of rendering speed and image quality.