The cone of normals technique for curved surface patches allows to perform various quick tests at the patch level such as front‐ or backfacing test, light influence test, and existence of silhouette edges test.Expand

This work is devoted to the problem of constructing geometrically continuous interpolating curves and surfaces through a given set of points. Geometric continuity is a relaxed measure of parametric… Expand

Using formal analysis of parallel and perspective viewing transformation behavior, closed-form form expressions are obtained for immediate evaluation of maximum, minimum, and average scales at a given point in space.Expand

In her Master''s Project, Lucia Longhi [Longhi ''85] has implemented an exploratory program, called uci, for interpolating triangular Gregory patches between cubic boundaries. This work is a… Expand