Title :
Modeling Murex cabritii sea shell with a structured implicit surface modeler
Author :
Galbraith, Callum ; Prusinkiewicz, Przemyslaw ; Wyvill, Brian
Author_Institution :
Dept. of Comput. Sci., Calgary Univ., Alta., Canada
Abstract :
Implicit surface modeling systems have been used since the mid-1980´s for the generation of cartoon like characters. Recently implicit models combined with constructive solid geometry (CSG) have been used to build engineering models with automatic blending. This work is built on a structured implicit modeling system which includes CSG, warping, 2D texture mapping and operations based on the BlobTree, and its application to the generation of a complex and visually accurate biological model of the sea shell Murex cabritii. Since the model is purely procedurally defined and does not rely on polygon mesh operations, it is resolution independent and can be rendered directly using ray tracing. An interface has been built to the BlobTree using an interpreted programming language (Python). The language interface readily allows a user to procedurally describe the shell based on numeric data taken from the actual object
Keywords :
bin packing; biology computing; image texture; ray tracing; rendering (computer graphics); solid modelling; user interfaces; 2D texture mapping; BlobTree; CSG; Murex cabritii sea shell; automatic blending; cartoon like characters; constructive solid geometry; engineering models; implicit surface modeling systems; interpreted programming language; language interface; numeric data; polygon mesh operations; ray tracing; structured implicit modeling system; structured implicit surface modeler; visually accurate biological model; warping; Biological system modeling; Computer science; Geometry; Image resolution; Layout; Mathematical model; Motion pictures; Sea surface; Shape control; Solid modeling;
Conference_Titel :
Computer Graphics International, 2000. Proceedings
Conference_Location :
Geneva
Print_ISBN :
0-7695-0643-7
DOI :
10.1109/CGI.2000.852320