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    • 31-Issue 4
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    Example-Based Fractured Appearance

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    Date
    2012
    Author
    Glondu, Loeiz
    Muguercia, Lien
    Marchal, Maud
    Bosch, Carles
    Rushmeier, Holly
    Dumont, Georges
    Drettakis, George
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    Abstract
    A common weathering effect is the appearance of cracks due to material fractures. Previous exemplar-based aging and weathering methods have either reused images or sought to replicate observed patterns exactly. We introduce a new approach to exemplar-based modeling that creates weathered patterns on synthetic objects by matching the statistics of fracture patterns in a photograph. We present a user study to determine which statistics are correlated to visual similarity and how they are perceived by the user. We then describe a revised physically-based fracture model capable of producing a wide range of crack patterns at interactive rates. We demonstrate how a Bayesian optimization method can determine the parameters of this model so it can produce a pattern with the same key statistics as an exemplar. Finally, we present results using our approach and various exemplars to produce a variety of fracture effects in synthetic renderings of complex environments. The speed of the fracture simulation allows interactive previews of the fractured results and its application on large scale environments.
    BibTeX
    @article {10.1111:j.1467-8659.2012.03151.x,
    journal = {Computer Graphics Forum},
    title = {{Example-Based Fractured Appearance}},
    author = {Glondu, Loeiz and Muguercia, Lien and Marchal, Maud and Bosch, Carles and Rushmeier, Holly and Dumont, Georges and Drettakis, George},
    year = {2012},
    publisher = {The Eurographics Association and Blackwell Publishing Ltd.},
    DOI = {10.1111/j.1467-8659.2012.03151.x}
    }
    URI
    http://dx.doi.org/10.1111/j.1467-8659.2012.03151.x
    Collections
    • 31-Issue 4
    • EGSR12: 23th Eurographics Symposium on Rendering

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