Real-Time, Continuous Level of Detail Rendering of Height Fields

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Real-Time, Continuous Level of Detail Rendering of Height Fields (1996)

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by Peter Lindstrom , David Koller , William Ribarsky , Larry F. Hodges , Nick Faust , Gregory A. Turner

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296 - 15 self

BibTeX

@MISC{Lindstrom96real-time,continuous,
    author = {Peter Lindstrom and David Koller and William Ribarsky and Larry F. Hodges and Nick Faust and Gregory A. Turner},
    title = {Real-Time, Continuous Level of Detail Rendering of Height Fields},
    year = {1996}
}

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Abstract

We present an algorithm for real-time level of detail reduction and display of high-complexity polygonal surface data. The algorithm uses a compact and efficient regular grid representation, and employs a variable screen-space threshold to bound the maximum error of the projected image. A coarse level of simplification is performed to select discrete levels of detail for blocks of the surface mesh, followed by further simplification through repolygonalization in which individual mesh vertices are considered for removal. These steps compute and generate the appropriate level of detail dynamically in real-time, minimizing the number of rendered polygons and allowing for smooth changes in resolution across areas of the surface. The algorithm has been implemented for approximating and rendering digital terrain models and other height fields, and consistently performs at interactive frame rates with high image quality.

Keyphrases

height field continuous level detail rendering interactive frame rate rendered polygon appropriate level real-time level surface mesh smooth change high-complexity polygonal surface data coarse level step compute efficient regular grid representation detail reduction maximum error variable screen-space threshold individual mesh vertex high image quality discrete level digital terrain model

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