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Construction of a model of a continuous light source specified by a fixed set of rays

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Abstract

A physically correct model of a light source specified by a finite set of rays obtained either by processing the measured characteristics of the light source on the Radiant Imaging goniometric system or as a result of the forward stochastic ray tracing in a scene modeling the radiation of a complex light source is constructed. An algorithm for constructing a continuous emitting surface of a light source and its goniometric diagram given a finite set of rays is developed. The model preserves the spectral composition of the source rays in the surface luminance distribution of the radiation light source. An example of the photorealistic rendering of a scene illuminated by a finite set of rays obtained by the computer processing photometric measurement data.

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Authors and Affiliations

  1. St. Petersburg National Research University of Information Technologies, Mechanics, and Optics, Kronverkskii pr. 49, St. Petersburg, 197101, Russia

    D. D. Zhdanov & A. A. Aleinikov

  2. Research and Development Center Informatics and Applied Mathematics, Miusskaya pl. 4, Moscow, 125047, Russia

    A. D. Zhdanov

  3. Keldysh Institute of Applied Mathematics, Russian Academy of Sciences, Miusskaya pl. 4, Moscow, 125047, Russia

    N. B. Deryabin

Authors
  1. D. D. Zhdanov
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  2. A. A. Aleinikov
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  3. A. D. Zhdanov
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  4. N. B. Deryabin
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Correspondence to D. D. Zhdanov.

Additional information

Original Russian Text © D.D. Zhdanov, A.A. Aleinikov, A.D. Zhdanov, N.B. Deryabin, 2016, published in Programmirovanie, 2016, Vol. 42, No. 6.

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Zhdanov, D.D., Aleinikov, A.A., Zhdanov, A.D. et al. Construction of a model of a continuous light source specified by a fixed set of rays. Program Comput Soft 42, 333–340 (2016). https://doi.org/10.1134/S0361768816060074

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  • DOI: https://doi.org/10.1134/S0361768816060074

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