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Fluid-based hatching for tone mapping in line illustrations

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Abstract

This paper presents a novel meshless, physically-based framework for line art rendering of surfaces with complex geometry and arbitrary topology. We apply an inviscid fluid flow simulation using Smoothed Particles Hydrodynamics to compute the global velocity and cross fields over the surface model. These fields guide the automatic placement of strokes while extracting the geometric and topological coherence of the model. Target tones are matched by tonal value maps allowing different hatching and cross-hatching effects. We demonstrate the simplicity and effectiveness of our method with sample renderings obtained for a variety of models.

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Authors and Affiliations

  1. ICMC (Institute of Mathematics and Computer Science), USP, São Carlos, Brazil

    Afonso Paiva

  2. IMPA (Institute of Pure and Applied Mathematics), Rio de Janeiro, Brazil

    Emilio Vital Brazil

  3. Department of Mathematics, PUC-Rio, Rio de Janeiro, Brazil

    Fabiano Petronetto

  4. Department of Computer Science, University of Calgary, Calgary, Canada

    Mario Costa Sousa

Authors
  1. Afonso Paiva
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  2. Emilio Vital Brazil
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  3. Fabiano Petronetto
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  4. Mario Costa Sousa
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Corresponding author

Correspondence to Emilio Vital Brazil.

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Paiva, A., Vital Brazil, E., Petronetto, F. et al. Fluid-based hatching for tone mapping in line illustrations. Vis Comput 25, 519–527 (2009). https://doi.org/10.1007/s00371-009-0322-8

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  • DOI: https://doi.org/10.1007/s00371-009-0322-8

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