Proceedings: GI 2007

Interactive refractions with total internal reflection

Scott Davis , Chris Wyman

Proceedings of Graphics Interface 2007: Montréal, Québec, Canada, 28 - 30 May 2007, 185-190

DOI 10.20380/GI2007.25

  • Bibtex

    author = {Davis, Scott and Wyman, Chris},
    title = {Interactive refractions with total internal reflection},
    booktitle = {Proceedings of Graphics Interface 2007},
    series = {GI 2007},
    year = {2007},
    issn = {0713-5424},
    isbn = {978-1-56881-337-0},
    location = {Montr{\'e}al, Qu{\'e}bec, Canada},
    pages = {185--190},
    numpages = {6},
    doi = {10.20380/GI2007.25},
    acmdoi = {doi>10.1145/1268517.1268548},
    publisher = {Canadian Human-Computer Communications Society},
    address = {University of Waterloo, Waterloo, Ontario, Canada},


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.