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  • 标题:Hybrid Shear-Warp Rendering
  • 作者:M. Nordin Zakaria ; N. Selvanathan
  • 期刊名称:Malaysian Journal of Computer Science
  • 印刷版ISSN:0127-9084
  • 出版年度:1999
  • 卷号:12
  • 期号:2
  • 出版社:University of Malaya * Faculty of Computer Science and Information Technology
  • 摘要:Shearwarp rendering is a fast and efficient method for visualizing a volume of sampled data based on a factorization of the viewing transformation into a shear and a warp. In shearwarp rendering, the volume is resampled, composited and warped to obtain the final image. Many applications, however, require a mixture of polygonal and volumetric data to be rendered together in a single image. This paper describes a new approach for extending the shearwarp rendering to simultaneously handle polygonal objects. A data structure, the zlistbuffe, is presented. It is basically a multilayered zbuffer. With the zlistbuffer, an objectbased scan conversion of polygons requires only a simple modification of the standard polygon scanconversion algorithm. This paper shows how the scan conversion can be integrated with shearwarp rendering of runlength encoded volume data to obtain quality images in real time. The utility and performance of the approach using a number of test renderings is also discussed.
  • 关键词:Volume Rendering; Polygon Rendering; ShearWarp Factorization
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