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SIGGRAPH
1997
ACM

View-dependent refinement of progressive meshes

9 years 7 months ago
View-dependent refinement of progressive meshes
Level-of-detail (LOD) representations are an important tool for realtime rendering of complex geometric environments. The previously introduced progressive mesh representation defines for an arbitrary triangle mesh a sequence of approximating meshes optimized for view-independent LOD. In this paper, we introduce a framework for selectively refining an arbitrary progressive mesh according to changing view parameters. We define efficient refinement criteria based on the view frustum, surface orientation, and screen-space geometric error, and develop a real-time algorithm for incrementally refining and coarsening the mesh according to these criteria. The algorithm exploits view coherence, supports frame rate regulation, and is found to require less than 15% of total frame time on a graphics workstation. Moreover, for continuous motions this work can be amortized over consecutive frames. In addition, smooth visual transitions (geomorphs) can be constructed between any two selectively refi...
Hugues Hoppe
Added 26 Aug 2010
Updated 26 Aug 2010
Type Conference
Year 1997
Where SIGGRAPH
Authors Hugues Hoppe
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