No abstract

As a part of “The Vltava River” project, it was necessary to create a visualisation of the historic Vltava River valley before the construction of the so-called Vltava Cascade (nine dams built in the Vltava River basin between 1930 and 1992). Vectorisations of the Imperial Obligatory Imprints of the Stable Cadastre, and a terrain model created from contour lines from the State Map 1:5000-Derived (SMO-5), prepared in an earlier phase of the project, were used as a basis for this visualisation. Due to the extent of the modelled area, which is approximately 1670 km2, and the available underlying data realistically usable for the visualisation, mainly procedural modelling with the use of the CGA shape grammar was chosen for the creation of 3D objects. These procedurally created 3D models were completed with more detailed models of landmark buildings created in CAD. The outcomes were used to establish a virtual reality (VR) application in the Unreal Engine software. The results are a 3D scene created in a form corresponding approximately to the state of the Vltava River valley in the 19th century, which is available for viewing via a web application, and a VR scene used for demonstration at exhibitions.

Abstract. This article focuses on the content and processing of the prepared dissertation thesis, which deals with the possibilities of using new technologies and software tools such as procedural generation of 3D models, game engines, rendering programs, virtual and augmented reality, eye tracking and BIM in cartographic processing and 3D landscape visualization. The dissertation focuses on the interconnection of these technologies, on new methods of processing and on the combination of the use of modern software equipment with already existing methods of processing into one complete process. For these purposes, the possibilities of using, among other things, software development kits (SDK), plugins and extensions of existing programs will be explored. Great emphasis will be placed on the Unity game engine and the ability to use its individual parts (rendering engine, physics engine, scripting, simulation, and AI) to create new workflows and new types of processing / outputs. The main goal of this dissertation is to find and document the possibilities of interconnection of individual technologies, especially those that are not commonly used or can be considered new (no scientific articles were found that would use these methods of interconnection). The result of the dissertation will be new working procedures and more realistic visualizations of 3D models and scenes corresponding to the technologies available today. An equally important part of the dissertation will be the creation of sample projects for individual programs, test data, work procedures and general teaching materials to simplify the use of these technologies in teaching and in departmental projects.