Comparison

                raycasting: 4.96      splatting: 1.49      shear warp: .09     texture map: .07
   
[www.gris.uni-tuebingen.de/~bartz/proj/volume/Fab4/dataset1.html]

A Practical Evaluation of Four Popular Volume Rendering Algorithms
Meissner, Huang, Bartz, Mueller, and Crawfis. VolVis 2000

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