Modelagem procedural de elementos de fachada para arquiteturas complexas utilizando Selection Expression (SELEX)

Abstract

Procedural modeling of virtual environments has become highly relevant in recent years, mainly due to its advantages over the manual modeling process. Instead of a designer building an object manually, which can be costly and time-consuming, it is possible to define certain parameters that characterize the object so that it can be generated automatically. In this sense, the generation of buildings is one of the most advanced topics in the field of procedural modeling. This is due to the importance of representing urban environments, which reproduce the context experienced by society and characterize the culture and identity of a people. There are several techniques that aim to generate these elements as faithfully as possible, but most of them are limited to straight and rectangular structures. However, many buildings have more complex structures with deformations, such as those found in constructions with organic architecture. Regarding facades, there are even more challenges, as they must properly adapt to multifarious structures and may also have distinct details. Therefore, this study aims to enable the procedural generation of facade elements in buildings with rounded geometry using selection expressions (SELEX). To achieve this, operations described in the SELEX language that assist in manipulating the building shapes have been implemented. Additionally, new operations have been developed to add facade elements, including curved ones.