Approximating normals for marching cubes applied to locally supported isosurfaces

Gregory M. Nielson, Adam Huang, Steve Sylvester

研究成果: 會議貢獻類型會議論文同行評審

25 引文 斯高帕斯(Scopus)


We present some new methods for computing estimates of normal vectors at the vertices of a triangular mesh surface approximation to an isosurface which has been computed by the marching cube algorithm. These estimates are required for the smooth rendering of triangular mesh surfaces. The conventional method of computing estimates based upon divided difference approximations of the gradient can lead to poor estimates in some applications. This is particularly true for isosurfaces obtained from a field function, which is defined only for values near to the isosurface. We describe some efficient methods for computing the topology of the triangular mesh surface, which is used for obtaining local estimates of the normals. In addition, a new, one pass, approach for these types of applications is described and compared to existing methods.

出版狀態已出版 - 2002
事件VIS 2002, IEEE Visualisation 2002 - Boston, MA, United States
持續時間: 27 10月 20021 11月 2002


???event.eventtypes.event.conference???VIS 2002, IEEE Visualisation 2002
國家/地區United States
城市Boston, MA


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