JANOTÍK, Matej: Models of Dead Trees and Stumps for Game Engine Unity 3D [Bachelor thesis] – Technical University in Zvolen, Faculty of Forestry, Department of Forest Resource Planning and Informatics. Supervisor: Prof. Ing. Marek Fabrika, PhD. Qualification Bachelor, abbreviation “Bc.“ Zvolen: FF TU, 2021. Bachelor thesis is focused on the creation of dead standing trees and species-different stumps models in software Agisoft PhotoScan for Unity 3D Game Engine. Introductory part includes forest modelling, visualization, description of virtual reality as a potential technology for forest visualization. Part of the visualization analysis includes also display levels or levels of details (LOD). The following chapter is focused on Game Engines and their advantages and disadvantages. The next sections are devoted to the analysis of photogrammetry as a basic component of data acquisition for work in the software Agisoft Metashape. In this sense, it is mainly the use of ground-based, convergent photogrammetry methods. An important part is also the description, distribution of dead wood and its impact on the forest ecosystem. The following section shows the actual workflow in Agisoft Metashape. The chapter considers the individual steps from importing photos to exporting models. The results of the thesis are 3D models of two dead standing trees and four species-different stumps. Every single model is developed and optimized at three levels of detail. These models are exported in the form of objects (.obj) with mapped textures. These objects can subsequently be used in the already mentioned Unity 3D game engine.