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Journal Articles Computers and Graphics Year : 2023

Deep weathering effects

Abstract

Weathering phenomena are ubiquitous in urban environments, where it is easy to observe severely degraded old buildings as a result of water penetration. Despite being an important part of any realistic city, this kind of phenomenon has received little attention from the Computer Graphics community compared to stains resulting from biological or flow effects on the building exteriors. In this paper, we present physically-inspired deep weathering effects, where the penetration of humidity (i.e., water particles) and its interaction with a building's internal structural elements result in large, visible degradation effects. Our implementation is based on a particle-based propagation model for humidity propagation, coupled with a spring-based interaction simulation that allows chemical interactions, like the formation of rust, to deform and destroy a building's inner structure. To illustrate our methodology, we show a collection of deep degradation effects applied to urban models involving the creation of rust or of ice within walls.

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hal-04056425 , version 1 (03-04-2023)

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Adrien Verhulst, Jean-Marie Normand, Guillaume Moreau, Gustavo Patow. Deep weathering effects. Computers and Graphics, 2023, 112, pp.40-49. ⟨10.1016/j.cag.2023.03.006⟩. ⟨hal-04056425⟩
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