Novosibirsk State University Journal of Information Technologies
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A local model of light interaction with isotropic and uniaxial transparent media
V. A. Debelov, D. S. Kozlov

Novosibirsk State University
Institute of Computational Mathematics and Mathematical Geophysics of the SB RAS

UDC code: 004.925.3

The paper is devoted to the derivation of a local model of light interaction with a boundary of two transparent crystals (media) with different optical characteristics (isotropic or uniaxial). Refracting and reflecting properties of each medium are defined by the direction of the optical axis (if any) and refraction spectra. Local model describes a set of rules to calculate directions, intensities and polarization states of all outgoing rays by corresponding attributes of an incoming ray and optical properties of adjacent media. The developed model operates with the term of polarized ray, i.e. geometrical ray with linked intensity and polarization state attributes. The suggested algorithm for calculation of rays allows calculating properties of all reflected and refracted rays (up to 4 rays). In the paper, isotropic and uniaxial media are considered in a similar manner. The correctness of the model is validated by comparison of a photo of a real uniaxial crystal with the corresponding computed image.

Key Words
ray tracing, photorealistic rendering, birefringence, optical dispersion, light polarization, optical axis, uniaxial crystal, isotropic crystal

How to cite:
Debelov V. A., Kozlov D. S. A local model of light interaction with isotropic and uniaxial transparent media // Vestnik NSU Series: Information Technologies. - 2012. - Volume 10, Issue No 1. - P. 5-23. - ISSN 1818-7900. (in Russian).

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Publication information
Main title Vestnik NSU Series: Information Technologies, Volume 10, Issue No 1 (2012).
Parallel title: Novosibirsk State University Journal of Information Technologies Volume 10, Issue No 1 (2012).

Key title: Vestnik Novosibirskogo gosudarstvennogo universiteta. Seriâ: Informacionnye tehnologii
Abbreviated key title: Vestn. Novosib. Gos. Univ., Ser.: Inf. Tehnol.
Variant title: Vestnik NGU. Seriâ: Informacionnye tehnologii

Year of Publication: 2012
ISSN: 1818-7900 (Print), ISSN 2410-0420 (Online)
Publisher: Novosibirsk State University Press
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