Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Patent
1997-04-10
2000-01-25
Nguyen, Phu K.
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
G06T 1500
Patent
active
060183470
ABSTRACT:
A computer-implemented method for modeling a three-dimensional image with polygons having different levels of detail. The method includes initially modeling the three-dimensional image with a first plurality of polygons at a first level of detail. The first level of detail represent the coarsest level of detail available for modeling the three-dimensional image. The first plurality of polygons are provided as part of an input data set. The method further includes comparing a distance between a first polygon of the first plurality of polygons and an eye point to a predefined threshold distance value associated with a level of detail of the first polygon. If the distance is less than the predefined threshold distance value, the method substitutes in a second plurality of polygons for the first polygon. The second plurality of polygons are at a second level of detail higher than the first level of detail and computed in advance prior to a commencement of the initial modeling step and provided as part of the input data set.
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patent: 5367615 (1994-11-01), Economy et al.
U.S. Patent Application No. 08/749,285 (unofficial), filed Nov. 13, 1996, "A System and Method for Displaying Different Portions of an Object in Different LOD Levels".
U.S. Provisional Patent Application No. 60/030,681, filed Nov. 13, 1996, "A System and Method for Continuously Transitioning the Display of an Object Between Different Levels-of-Detail".
L. Willis, M. Jones, and J. Zhao, "A Method for Continuous Adaptive Terrain," 1996 Image Conference (1996).
Multigen Paradigm, Inc.
Nguyen Phu K.
Vo Cliff N.
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