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Comprehensible Rendering of 3-D Shapes (1990)
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BibTeX
@INPROCEEDINGS{Saito90comprehensiblerendering,
author = {Takafumi Saito and Tokiichiro Takahashi},
title = {Comprehensible Rendering of 3-D Shapes},
booktitle = {},
year = {1990},
pages = {197--206}
}
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Abstract
We propose a new rendering technique that produces 3-D images with enhanced visual comprehensibility. Shape fea-tures can be readily understood if certain geometric proper-ties are enhanced. To achieve this, we develop drawing algo-rithms for discontinuities, edges, contour lines, and curved hatching. All of them are realized with 2-D image process-ing operations instead of line tracking processes, so that they can be efficiently combined with conventional surface rendering algorithms. Data about the geometric properties of the surfaces are preserved as Geometric Buffers (G-buffers). Each G-buffer contains one geometric property such as the depth or the normal vector of each pixel. By using G-buffers as interme-diate results, artificial enhancement processes are separated from geometric processes (projection and hidden surface re-moval) and physical processes (shading and texture map-ping), and performed as postprocesses. This permits a user to rapidly examine various combinations of enhancement techniques without excessive recompntation, and easily ob-tain the most comprehensible image. Our method can be widely applied for various purposes. Several of these, edge enhancement, line drawing illustra-tions, topographical maps, medical imaging, and surface analysis, are presented in this paper.
Keyphrases
comprehensible rendering 3-d shape geometric property physical process conventional surface 3-d image normal vector enhancement technique shape fea-tures new rendering technique certain geometric proper-ties various combination interme-diate result medical imaging geometric process enhanced visual comprehensibility contour line topographical map artificial enhancement process comprehensible image excessive recompntation surface analysis various purpose geometric buffer edge enhancement hidden surface re-moval texture map-ping 2-d image process-ing operation
