Hybrid shear-warp rendering
Shear-warp 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 shear-warp rendering, the volume is resampled, composited and warped to obtain the final image. Many applications, however,...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Faculty of Computer Science and Information Technology, University of Malaya
1999
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| Online Access: | http://psasir.upm.edu.my/id/eprint/49455/ http://psasir.upm.edu.my/id/eprint/49455/1/Hybrid%20shear-warp%20rendering.pdf |
| _version_ | 1848851272658059264 |
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| author | Zakaria, Mohamed Nordin Selvanathan, N. |
| author_facet | Zakaria, Mohamed Nordin Selvanathan, N. |
| author_sort | Zakaria, Mohamed Nordin |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Shear-warp 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 shear-warp 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 shear-warp rendering to simultaneously handle polygonal objects. A data structure, the zlist-buffe, is presented. It is basically a multilayered z-buffer. With the zlist-buffer, an object-based scan conversion of polygons requires only a simple modification of the standard polygon scan-conversion algorithm. This paper shows how the scan conversion can be integrated with shear-warp rendering of run-length 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. |
| first_indexed | 2025-11-15T10:19:33Z |
| format | Article |
| id | upm-49455 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:19:33Z |
| publishDate | 1999 |
| publisher | Faculty of Computer Science and Information Technology, University of Malaya |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-494552016-12-30T02:52:27Z http://psasir.upm.edu.my/id/eprint/49455/ Hybrid shear-warp rendering Zakaria, Mohamed Nordin Selvanathan, N. Shear-warp 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 shear-warp 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 shear-warp rendering to simultaneously handle polygonal objects. A data structure, the zlist-buffe, is presented. It is basically a multilayered z-buffer. With the zlist-buffer, an object-based scan conversion of polygons requires only a simple modification of the standard polygon scan-conversion algorithm. This paper shows how the scan conversion can be integrated with shear-warp rendering of run-length 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. Faculty of Computer Science and Information Technology, University of Malaya 1999 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/49455/1/Hybrid%20shear-warp%20rendering.pdf Zakaria, Mohamed Nordin and Selvanathan, N. (1999) Hybrid shear-warp rendering. Malaysian Journal of Computer Science, 12 (2). pp. 19-26. ISSN 0127-9084 http://e-journal.um.edu.my/publish/MJCS/136-151 |
| spellingShingle | Zakaria, Mohamed Nordin Selvanathan, N. Hybrid shear-warp rendering |
| title | Hybrid shear-warp rendering |
| title_full | Hybrid shear-warp rendering |
| title_fullStr | Hybrid shear-warp rendering |
| title_full_unstemmed | Hybrid shear-warp rendering |
| title_short | Hybrid shear-warp rendering |
| title_sort | hybrid shear-warp rendering |
| url | http://psasir.upm.edu.my/id/eprint/49455/ http://psasir.upm.edu.my/id/eprint/49455/ http://psasir.upm.edu.my/id/eprint/49455/1/Hybrid%20shear-warp%20rendering.pdf |