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

• Information and Media Technologies

  Information and Media Technologies 8 (2), 380-388, 2013

  Information and Media Technologies 編集運営会議

キーワード

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

詳細情報

• CRID: 1390282680242268928
• NII論文ID: 130003366955
• DOI: 10.11185/imt.8.380
• ISSN: 18810896
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可