Implementing a Rasterization Framework for a Black Hole Spacetime

• Item type: Journal(1)
• 公開日: 2016-07-15
• タイトル: Implementing a Rasterization Framework for a Black Hole Spacetime
• タイトル / 言語: en
• タイトル: Implementing a Rasterization Framework for a Black Hole Spacetime
• 言語: eng
• キーワード / 主題Scheme: Other
• キーワード / 主題: [一般論文] rasterization, black hole, graphics processing unit
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_6501
• 資源タイプ: journal article
• 著者所属: Department of Information Science, Saga University
• 著者所属(英): en
• 著者所属(英): Department of Information Science, Saga University
• 著者名: Yoshiyuki, Yamashita
• 著者名(英): Yoshiyuki, Yamashita
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: The theory of general relativity predicts that the strong gravity of a black hole bends the trajectories of light rays. Calculating their bendings numerically, we can obtain a 3D CG image when the view point is set in the black hole spacetime. The existing researches adopt the ray tracing method for rendering while we adopt the rasterization method in this paper. In order to achieve fast perspective projection in the curved spacetime, we calculate more than thirty million light trajectories on an optimally constructed computational mesh in advance and let a GPU interpolate them when rendering. Furthermore, in order to render the lines and triangular polygons of CG objects accurately, we apply the dynamic subdividing technique (tessellation). Various types of CG programs can be easily written in the same way as in the conventional 3D CG programming with a common graphics API. Utilizing the recent computing power of the GPU, the rendering performance of nearly one million polygons per second is achieved even on a notebook PC.; ------------------------------; This is a preprint of an article intended for publication Journal of; Information Processing(JIP). This preprint should not be cited. This; article should be cited as: Journal of Information Processing Vol.24(2016) No.4 (online); DOI http://dx.doi.org/10.2197/ipsjjip.24.690; ------------------------------
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: The theory of general relativity predicts that the strong gravity of a black hole bends the trajectories of light rays. Calculating their bendings numerically, we can obtain a 3D CG image when the view point is set in the black hole spacetime. The existing researches adopt the ray tracing method for rendering while we adopt the rasterization method in this paper. In order to achieve fast perspective projection in the curved spacetime, we calculate more than thirty million light trajectories on an optimally constructed computational mesh in advance and let a GPU interpolate them when rendering. Furthermore, in order to render the lines and triangular polygons of CG objects accurately, we apply the dynamic subdividing technique (tessellation). Various types of CG programs can be easily written in the same way as in the conventional 3D CG programming with a common graphics API. Utilizing the recent computing power of the GPU, the rendering performance of nearly one million polygons per second is achieved even on a notebook PC.; ------------------------------; This is a preprint of an article intended for publication Journal of; Information Processing(JIP). This preprint should not be cited. This; article should be cited as: Journal of Information Processing Vol.24(2016) No.4 (online); DOI http://dx.doi.org/10.2197/ipsjjip.24.690; ------------------------------
• 書誌レコードID / 収録物識別子タイプ: NCID
• 書誌レコードID / 収録物識別子: AN00116647
• 書誌情報: 情報処理学会論文誌; 巻 57, 号 7, 発行日 2016-07-15
• ISSN / 収録物識別子タイプ: ISSN
• ISSN / 収録物識別子: 1882-7764