Describes how to remove surfaces that are not visible with portal rendering. It also contains a detailed set of algorithms for implementing such hidden surface removal techniques.
A detailed development of a stereogram-generation algorithm is presented, complete with a ready-to-run Windows program to download and experiment with.
Several unique algorithms for fast and optimal computations with integer numbers and graphics suitable for hardware implementation: dividing, square rooting, line drawing, ellipse drawing, Haiku plot routine.