Visibility-driven progressive volume photon tracing

    Authors

    C. Collin; M. Ribardiere; A. Gruson; R. Cozot; S. Pattanaik;K. Bouatouch

    Comments

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    Abbreviated Journal Title

    Visual Comput.

    Keywords

    Rendering; Global illumination; Participating media; Markov chain Monte; Carlo; Computer Science, Software Engineering

    Abstract

    In this paper, we present a novel approach to progressive photon-based volume rendering techniques. By making use of two Kd-trees (built in a preprocessing step) to store view beams (primary rays intersecting the medium) and visible points, our method allows to handle scenes with specular and refractive objects as well as homogeneous and heterogeneous participating media and does not require the storage of photon maps, which solves the memory management issue. These data structures are used to drive the photon shooting process by considering the photon visibility as an importance function (similarly to Hachisuka and Jensen in ACM Trans. Graph. 30(5):114:1-114:11, 2011) for scenes containing participating media. Finally, we demonstrate that our method can be easily combined with the most recent particle tracing approaches such as the one presented in Jarosz et al. (ACM Trans. Graph., vol. 30(6), 2011).

    Journal Title

    Visual Computer

    Volume

    29

    Issue/Number

    9

    Publication Date

    1-1-2013

    Document Type

    Article

    Language

    English

    First Page

    849

    Last Page

    859

    WOS Identifier

    WOS:000322018100001

    ISSN

    0178-2789

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