Ray traced scalar fields with shaded polygonal output

Conference · Sun Dec 31 23:00:00 EST 1989

OSTI ID:6662579

Meyers, R J ^[1]; Stephenson, M B ^[2]

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1. Sandia National Labs., Albuquerque, NM (USA)
2. Brigham Young Univ., Provo, UT (USA). Dept. of Civil Engineering

An algorithm is presented or rendering scalar field data which reduces rendering times by as much as two orders of magnitude over traditional full resolution image. 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 is presented which further improves rendering speed. Several examples are presented. 16 refs., 8 figs., 2 tabs.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• Sponsoring Organization: NSF
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6662579
• Report Number(s): SAND-90-1383C; CONF-901089--1; ON: DE90011023; CNN: Agreement No. CDR8522618
• Country of Publication: United States
• Language: English

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