Incremental view-dependent multiresolution triangulation of terrain

Authors:
R. Klein;D. Cohen-Or;T. Huttner
Affiliations:
-;-;-
Venue:
PG '97 Proceedings of the 5th Pacific Conference on Computer Graphics and Applications
Year:
1997

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Abstract

A view-dependent multiresolution triangulation algorithm is presented for a real-time flythrough. The triangulation of the terrain is generated incrementally on-the-fly during the rendering time. We show that since the view changes smoothly only a few incremental modifications are required to update the triangulation to a new view. The resulting triangles form a multiresolution Delaunay triangulation which satisfies a predetermined view-dependent error tolerance. The presented method provides a guaranteed quality mesh since it has control over the global geometric approximation error of the multiresolution view-dependent triangulation.