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Author: Salman Shahidi

Affiliation: CNRS, France

ISBN: 978-989-8565-02-0

Keyword(s): Natural Phenomena, Weathering Phenomena, 3D Texture Synthesis, Displacement Mapping.

Related Ontology Subjects/Areas/Topics: Computer Vision, Visualization and Computer Graphics ; Geometry and Modeling ; Modeling of Natural Scenes and Phenomena ; Physics-Based Modeling ; Scene and Object Modeling ; Texture Models, Analysis, and Synthesis

Abstract: Human made buildings and constructions are very dependent upon various weathering phenomena, resulting in complex appearances and patterns that vary with time and environment. Handling such complexity is important in computer graphics in order to improve the realism of images. This difficult work is usually done by hand by designers and can lead to non-plausible results. Another way to tackle this problem is to provide new aging algorithms. Among a large number of weathering, salt weathering results in important visual changes affecting widely used materials: bricks and mortars. In this paper, we present a method to generate the texture of deformed and eroded masonry face by efflorescence. To avoid complex and unintuitive formulations while keeping plausible results, we chose a physically-inspired model. Moreover, in order to keep an important artistic control, it is possible for the user to create weathered textures in preferential masonry zones, leading to a great variety of differe nt patterns. First, we synthesize a masonry (brick/mortar) solid texture. Next, we add the effects of efflorescence and sub-florescence using a specific algorithm accounting for regular crystallized or eroded surface masonry by displacement mapping. In addition, to model very strong weathering effects on building walls, we apply a simple geometry modification method to modify the surface before its rendering. (More)

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Paper citation in several formats:
Shahidi, S. (2012). SALT WEATHERING OF BRICK WALLS.In Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2012) ISBN 978-989-8565-02-0, pages 7-15. DOI: 10.5220/0003807600070015

@conference{grapp12,
author={Salman Shahidi.},
title={SALT WEATHERING OF BRICK WALLS},
booktitle={Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2012)},
year={2012},
pages={7-15},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003807600070015},
isbn={978-989-8565-02-0},
}

TY - CONF

JO - Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications - Volume 1: GRAPP, (VISIGRAPP 2012)
TI - SALT WEATHERING OF BRICK WALLS
SN - 978-989-8565-02-0
AU - Shahidi, S.
PY - 2012
SP - 7
EP - 15
DO - 10.5220/0003807600070015

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