
7.3 Catalog of Useful Terrain Algorithms 215
Figure 7.23 The Puget Sound model used by Lindstrom and Pascucci. The error thresholds and
triangle counts in each case are (a) r = 2 pixels, 79,382 triangles, and (b) r = 4 pixels,
25,100 triangles [Lindstrom 01a]. Copyright 9 2001 IEEE.
of any error must be able to be used to update the appropriate bounding sphere
dimensions.
The authors test their system on three architectures: a two-processor 800-MHz
Pentium III PC with NVIDIA GeForce2 graphics card (900 MB RAM), a two-
processor 300-MHz R12000 SGI Octane with Solid Impact graphics (900-MB RAM),
and