Abstract

Abstract
This last chapter succinctly reviews the main contributions of the procedural modelling methodology presented in this book, briefly compares some of its aspects with other works and presents a set of notes to be considered as future research opportunities. © The Author(s) 2016.

Abstract
This chapter presents the final version of the procedural modelling methodology which works with an ontology-based grammar. Its procedural modelling process supports the generation of virtual buildings delimited by non-convex shapes, with divisions constrained by a variable number of delimiting wall segments. Furthermore, an experimental graph-based stochastic process that bridges with this methodology to enable the production of virtual random buildings is covered. © The Author(s) 2016.

Abstract
The second procedural modelling methodology version that will be addressed in this chapter has a modified treemap-based approach that enables the generation of virtual buildings with floor plans constrained by convex polygons. Other improvements include the input rules simplification and the incorporation of a moderation process to validate each input set (regarding syntax and geometry). © The Author(s) 2016.

Abstract
This chapter presents the first stage of the procedural modelling methodology addressed in this book, which is capable of generating domus—ancient roman houses—considering rectangular constraint shapes, through the combination of an ontological schema—extended to support some elements of the roman architecture—and a treemap-based procedural modelling process, that is responsible for creating the geometry according to the rules that define the buildings. © The Author(s) 2016.

Abstract
This chapter consists of a literature review regarding the use of ontologies on virtual environments and the procedural modelling solutions that have been proposed with focus in two approaches: (1) the production of virtual hollow buildings, uniquely composed by outer facades; and (2) the production of virtual traversable buildings, with interior divisions included. The integration of ontologies and semantics in procedural modelling is also addressed in each one of the referred approaches. © The Author(s) 2016.