What is the best (computationally least expensive) known algorithm
for clipping polygons in 3D against an upright parallel view volume?
(Actually, my application needs no yon plane: zMax is +infinity.)
Is there a 3D version of Liang-Barsky's 2D polygon clipper?
Mikael Pettersson, Dept of Comp & Info Sci, University of Linkoping, Sweden