Acceleration Techniques for Volume Rendering

The new method in this chapter was presented at the BCS Displays Group - Visualisation and Modelling conference at the University of Leeds, 6-7 December 1995.

Jack Bresenham attended the conference and liked the work.

I wrote it up more fully in my thesis, and it was published as a book chapter in Earnshaw, Jones and Vince (eds.), Visualization and Modeling, (London : Academic Press, 1997), 253-286. This version, uploaded to Zenodo, is the book chapter.

The method was to replace trilinear interpolation of samples with bilinear interpolation by adapting the stepping distance along the ray so samples occur within each plane. At the time, with slower CPUs, this reduction in operations provided a good speed-up with little image degradation.