LOD-Sprite Technique for Accelerated Terrain Rendering
Baoquan Chen, J. Edward Swan II, Eddy Kuo, and Arie Kaufman. LOD-Sprite Technique for Accelerated Terrain Rendering. In Proceedings of IEEE Visualization '99, pp. 291–298, IEEE Computer Society Press, October 1999.
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Abstract
We present a new rendering technique, termed LOD-sprite rendering, which uses a combination of a level-of-detail (LOD) representation of the scene together with reusing image sprites (previously rendered images). Our primary application is accelerating terrain rendering. The LOD-sprite technique renders an initial frame using a high-resolution model of the scene geometry. It renders subsequent frames with a much lower-resolution model of the scene geometry and texture-maps each polygon with the image sprite from the initial high-resolution frame. As it renders these subsequent frames the technique measures the error associated with the divergence of the view position from the position where the initial frame was rendered. Once this error exceeds a user-defined threshold, the technique re-renders the scene from the high-resolution model. We have efficiently implemented the LOD-sprite technique with texture-mapping graphics hardware. Although to date we have only applied LOD-sprite to terrain rendering, it could easily be extended to other applications. We feel LOD-sprite holds particular promise for real-time rendering systems.
Additional Information
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BibTeX
@InProceedings{IEEEVIS99-lod,
author = {Baoquan Chen and J. Edward {Swan~II} and Eddy Kuo and Arie Kaufman},
title = {LOD-Sprite Technique for Accelerated Terrain Rendering},
booktitle = {Proceedings of IEEE Visualization '99},
location = {San Francisco, California, USA},
date = {October 24--29},
month = {October},
year = 1999,
publisher = {IEEE Computer Society Press},
pages = {291--298},
abstract = {
We present a new rendering technique, termed <em>LOD-sprite</em> rendering,
which uses a combination of a level-of-detail (LOD) representation of the scene
together with reusing image <em>sprites</em> (previously rendered images). Our
primary application is accelerating terrain rendering. The LOD-sprite technique
renders an initial frame using a high-resolution model of the scene geometry.
It renders subsequent frames with a much lower-resolution model of the scene
geometry and texture-maps each polygon with the image sprite from the initial
high-resolution frame. As it renders these subsequent frames the technique
measures the error associated with the divergence of the view position from the
position where the initial frame was rendered. Once this error exceeds a
user-defined threshold, the technique re-renders the scene from the
high-resolution model. We have efficiently implemented the LOD-sprite technique
with texture-mapping graphics hardware. Although to date we have only applied
LOD-sprite to terrain rendering, it could easily be extended to other
applications. We feel LOD-sprite holds particular promise for real-time
rendering systems.
},
}