A Simplified Plane-parallel Scattering Model for Rendering Densely Distributed Objects such as Foliage

• Shinya Mikio

  Toho University

• Dobashi Yoshinori

  Hokkaido University

• Iwasaki Kei

  Wakayama University

• Shiraishi Michio

  Toho University

• Nishita Tomoyuki

  The University of Tokyo

抄録

Fast computation of multiple reflections and scattering among complex objects is very important in photorealistic rendering. This paper applies the plane-parallel scattering theory to the rendering of densely distributed objects such as trees. We propose a simplified plane-parallel scattering model that has very simple analytic solutions, allowing efficient evaluation of multiple scattering. A geometric compensation method is also introduced to cope with the infinite plane condition, required by the plane-parallel model. The scattering model was successfully applied to tree rendering. Comparison with a Monte Carlo method was made and reasonable agreement was confirmed. A rendering system based on the model was implemented and multiple inter-reflections were effectively obtained. The view-independent feature of the model allows fast display of scenes. The pre-computation is also modest, permitting interactive control of lighting conditions.

収録刊行物

• Journal of Information Processing

  Journal of Information Processing 21 (2), 349-357, 2013

  一般社団法人 情報処理学会

キーワード

• image synthesis
• multiple scattering
• plane-parallel model
• foliage rendering

詳細情報

• CRID: 1390001205296013696
• NII論文ID: 130003369541
• NII書誌ID: AA00700121
• DOI: 10.2197/ipsjjip.21.349
• ISSN: 18826652
• Web Site: http://id.nii.ac.jp/1001/00095662/
• Web Site: https://www.jstage.jst.go.jp/article/ipsjjip/21/2/21_349/_pdf
• 本文言語コード: en
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