Interactive refractions with total internal reflection

  • Authors:
  • Scott T Davis;Chris Wyman

  • Affiliations:
  • University of Iowa;University of Iowa

  • Venue:
  • GI '07 Proceedings of Graphics Interface 2007
  • Year:
  • 2007

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Abstract

A requirement for rendering realistic images interactively is efficiently simulating material properties. Recent techniques have improved the quality for interactively rendering dielectric materials, but have mostly neglected a phenomenon associated with refraction, namely, total internal reflection. We present an algorithm to approximate total internal reflection on commodity graphics hardware using a ray-depth map intersection technique that is interactive and requires no precomputation. Our results compare favorably with ray traced images and improve upon approaches that avoid total internal reflection.