Real-time rendering of photo-textured terrain height fields

Author

Guedes, Luiz Carlos ; Gattass, Marcelo ; Carvalho, Paulo Cezar P

Author_Institution

Dept. de Ciencia da Comput., Univ. Federal Fluminense, Niteroi, Brazil

fYear

1997

fDate

14-17 Oct 1997

Firstpage

18

Abstract

Interactive tridimensional visualization of terrain models can be found in geographical information systems and computer games. Both applications share the need for high performance algorithms that are tailored to produce textured images in interactive time, say at least 5 frames per second. We propose and analyze the extension of a well known ray casting algorithm to the case where the view plane is not vertical. Three efficient algorithms are presented and compared. Experimental results are shown and conclusions are made

Keywords

computer games; data visualisation; geographic information systems; image texture; interactive systems; ray tracing; real-time systems; rendering (computer graphics); computer games; efficient algorithms; geographical information systems; high performance algorithms; interactive time; interactive tridimensional visualization; photo textured terrain height fields; ray casting algorithm; real time rendering; terrain models; textured images; view plane; Algorithm design and analysis; Application software; Casting; Games; Geographic Information Systems; Graphics; Information systems; Microcomputers; Rendering (computer graphics); Visualization;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Graphics and Image Processing, 1997. Proceedings., X Brazilian Symposium on

Conference_Location

Campos do Jordao

Print_ISBN

0-8186-8102-0

Type

conf

DOI

10.1109/SIGRA.1997.625143

Filename

625143