Title:
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Relief impostor selection for large scale urban rendering
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Author:
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Andújar Gran, Carlos Antonio; Díaz Iriberri, José; Brunet Crosa, Pere
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics; Universitat Politècnica de Catalunya. MOVING - Grup de Recerca en Modelatge, Interacció i Visualització en Realitat Virtual |
Abstract:
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Image-based rendering techniques are often the preferred choice to accelerate the exploration of massive outdoor models and complex human-made structures. In the last few years, relief mapping has been shown to be extremely useful as a compact representation of highly-detailed 3D models. In this paper we describe a rendering system for interactive, high-quality visualization of large scale urban models through a hierarchical collection of properly-oriented
relief-mapped polygons. At the heart of our approach is a visibilityaware algorithm for the selection of the set of viewing planes supporting the relief maps. Our selection algorithm optimizes both the sampling density and the coverage of the relief maps and its running time is mostly independent on the underlying geometry. We show that our approach is suitable for navigating through large scale urban models at interactive rates while preserving both geometric and
appearance details. |
Subject(s):
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-Àrees temàtiques de la UPC::Informàtica::Infografia -Rendering (Computer graphics) -Three dimensional imaging -Infografia tridimensional |
Rights:
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Document type:
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Article - Published version Conference Object |
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