A Physically Based Rendering Method of Rainbows Under Various Atmospheric Conditions

DOI Web Site 20 References
  • KANAMORI Shota
    Graduate School of Engineering, Hiroshima University
  • FUJIWARA Kazuya
    Graduate School of Engineering, Hiroshima University
  • RAYTCHEV Bisser
    Department of Information Engineering, Faculty of Engineering, Hiroshima University
  • TAMAKI Toru
    Department of Information Engineering, Faculty of Engineering, Hiroshima University
  • KANEDA Kazufumi
    Department of Information Engineering, Faculty of Engineering, Hiroshima University

Bibliographic Information

Other Title
  • 物理現象に基づく様々な大気条件下での虹のレンダリング手法
  • ブツリ ゲンショウ ニ モトズク サマザマ ナ タイキ ジョウケン カ デ ノ ニジ ノ レンダリング シュホウ

Search this article

Description

Atmospheric phenomena such as rainbows and halos are caused by interference, diffraction and dispersion of light. To render the kinds of atmospheric phenomena, the spectrum of light should be taken into account because the optical phenomena greatly depend on the wavelength. Traditionally, rainbows are rendered by means of geometric optics. These methods, however, cannot render supernumerary rainbows and visual variations of rainbows depending on the radius of water drops. The paper proposes a method for rendering rainbows taking into account wave optics and spectral distribution of light based on physical laws. The method is taking into account the distribution of water drops, such as the radius and the density of water drops in the atmosphere. And also we are taking into account atmospheric light scattering by air molecules and aerosol. These efforts enable our method to render the visual variations of rainbows and supernumerary rainbows. It helps visual understanding of rainbows and atmospheric conditions in meteorology.

Journal

References(20)*help

See more

Related Projects

See more

Keywords

Details 詳細情報について

Report a problem

Back to top