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Cached Geometry Manager for View-dependent LOD Rendering


Lario, R; Pajarola, R; Tirado, F (2005). Cached Geometry Manager for View-dependent LOD Rendering. In: International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, Plzen-Bory, Czech Republic, 31 January 2005 - 4 February 2005, 9-16.

Abstract

The new generation of commodity graphics cards with significant on-board video memory has become widely
popular and provides high-performance rendering and flexibility. One of the features to be exploited with this
hardware is the use of the on-board video memory to store geometry information. This strategy significantly
reduces the data transfer overhead from sending geometry data over the (AGP) bus interface from main memory
to the graphics card. However, taking advantage of cached geometry is not a trivial task because the data models
often exceed the memory size of the graphics card. In this paper we present a dynamic Cached Geometry
Manager (CGM) to address this issue. We show how this technique improves the performance of real-time
view-dependent level-of-detail (LOD) selection and rendering algorithms of large data sets. Alternative caching
approaches have been analyzed over two different view-dependent progressive mesh (VDPM) frameworks: one
for rendering of arbitrary manifold 3D meshes, and one for terrain visualization.

Abstract

The new generation of commodity graphics cards with significant on-board video memory has become widely
popular and provides high-performance rendering and flexibility. One of the features to be exploited with this
hardware is the use of the on-board video memory to store geometry information. This strategy significantly
reduces the data transfer overhead from sending geometry data over the (AGP) bus interface from main memory
to the graphics card. However, taking advantage of cached geometry is not a trivial task because the data models
often exceed the memory size of the graphics card. In this paper we present a dynamic Cached Geometry
Manager (CGM) to address this issue. We show how this technique improves the performance of real-time
view-dependent level-of-detail (LOD) selection and rendering algorithms of large data sets. Alternative caching
approaches have been analyzed over two different view-dependent progressive mesh (VDPM) frameworks: one
for rendering of arbitrary manifold 3D meshes, and one for terrain visualization.

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Item Type:Conference or Workshop Item (Paper), refereed, original work
Communities & Collections:03 Faculty of Economics > Department of Informatics
Dewey Decimal Classification:000 Computer science, knowledge & systems
Event End Date:4 February 2005
Deposited On:24 Mar 2011 13:43
Last Modified:07 Dec 2017 08:08

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