Year: 2004
Type: article
Abstract: Interactive rendering of trimmed NURBS models is of great importance for CAD systems. For this the model\nneeds to be transformed into a polygonal representation. This transformation can be either performed in a\npreprocessing step, at the cost of losing the capability to edit the surfaces, or on the fly during rendering. Since\nthe number of frames per second is usually critical, efficient on the fly tessellation of trimmed NURBS surfaces\nis very important for interactive rendering and editing of such models.\nIn this paper we present an efficient – with respect to both runtime and to the number of generated triangles –\ntessellation algorithm for trimmed NURBS surfaces that is capable of guaranteeing a specified geometric\napproximation error. When affordable by the subsequent steps in the pipeline, an approximate error of the\ntessellation can also be used leading to fewer triangles.
Authors: Ákos Balázs, Michael Guthe, Reinhard Klein
Institution: University of Bonn
Language: English
Subfield: Computational Mechanics
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2106579199