Title :
Ray traced scalar fields with shaded polygonal output
Author :
Meyers, Ray J. ; Stephenson, Michael B.
Author_Institution :
Sandia Nat. Lab., Albuquerque, NM, USA
Abstract :
An algorithm for rendering scalar field data that reduces rendering times by as much as two orders of magnitude over traditional full resolution images is presented. Less than full-resolution sampling of the scalar field is performed using a fast ray tracing method. The sampling grid points are output as a set of screen-based Gouraud shaded polygons which are rendered in hardware by a graphics workstation. A gradient-based variable resolution algorithm that further improves rendering speed is presented. Several examples are presented
Keywords :
computational geometry; computer graphics; gradient-based variable resolution algorithm; graphics workstation; ray traced scalar fields; rendering scalar field data; sampling grid points; screen-based Gouraud shaded polygons; shaded polygonal output; Civil engineering; Computer graphics; Data engineering; Image quality; Image sampling; Laboratories; Physics computing; Power engineering computing; Rendering (computer graphics); Three dimensional displays;
Conference_Titel :
Visualization, 1990. Visualization '90., Proceedings of the First IEEE Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
0-8186-2083-8
DOI :
10.1109/VISUAL.1990.146390
