Micro-specular-highlight real-time rendering

• Item type: SIG Technical Reports(1)
• 公開日: 2021-02-09
• タイトル: Micro-specular-highlight real-time rendering
• タイトル / 言語: en
• タイトル: Micro-specular-highlight real-time rendering
• 言語: eng
• キーワード / 主題Scheme: Other
• キーワード / 主題: 一般セッション2
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_18gh
• 資源タイプ: technical report
• 著者所属: Hokkaido University
• 著者所属: University of California, Davis
• 著者所属: Wakayama University
• 著者所属: Hokkaido University
• 著者所属(英): en
• 著者所属(英): Hokkaido University
• 著者所属(英): en
• 著者所属(英): University of California, Davis
• 著者所属(英): en
• 著者所属(英): Wakayama University
• 著者所属(英): en
• 著者所属(英): Hokkaido University
• 著者名: Namo, Podee; Nelson, Max; Kei, Iwasaki; Yoshinori, Dobashi
• 著者名(英): Namo, Podee; Nelson, Max; Kei, Iwasaki; Yoshinori, Dobashi
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: Specular highlights are a critical factor for rendering high-quality and realistic images. However, consistent rendering of specular highlight smaller than a pixel size is a challenging problem. The problem usually arises when the lighting is evaluated at only the center of a pixel. An intense highlight can occur in a small area that is not at the center of its pixel. We propose a method that renders in real-time a sub-pixel specular-highlight. Our approach finds a reflection vector for each pixel that creates the brightest highlight by interpolating between four reflection vectors at the pixel corners. Then we compute the lighting with the reflection vector and multiply the result by an appropriate weight to account for the fraction of the pixel area that reflects the light source.
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: Specular highlights are a critical factor for rendering high-quality and realistic images. However, consistent rendering of specular highlight smaller than a pixel size is a challenging problem. The problem usually arises when the lighting is evaluated at only the center of a pixel. An intense highlight can occur in a small area that is not at the center of its pixel. We propose a method that renders in real-time a sub-pixel specular-highlight. Our approach finds a reflection vector for each pixel that creates the brightest highlight by interpolating between four reflection vectors at the pixel corners. Then we compute the lighting with the reflection vector and multiply the result by an appropriate weight to account for the fraction of the pixel area that reflects the light source.
• 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: AN10100541
• 書誌情報: 研究報告コンピュータグラフィックスとビジュアル情報学（CG）; 巻 2021-CG-181, 号 10, p. 1-4, 発行日 2021-02-09
• ISSN / 収録物識別子タイプ: ISSN
• ISSN / 収録物識別子: 2188-8949
• Notice: SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc.
• 出版者 / 言語: ja
• 出版者: 情報処理学会