SALT WEATHERING OF BRICK WALLS

Salman Shahidi

2012

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 different 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.

Paper Citation

in Harvard Style

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

in Bibtex Style

@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},
}

in EndNote Style

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