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Algorithms of Level of Detail in OpenSceneGraph
Hupka, Dušan ; Milet, Tomáš (referee) ; Pečiva, Jan (advisor)
Present graphic requires a lot of optimizations of rendering techniques and mathematical calculations. It is caused by increased requirements of scene's visualization. One of scene's optimizing techniques is the Level of detail. This thesis is focused on methods used by LOD in OpenSceneGraph and OpenGL library. Next it will be described how to choose the right level of detail in a scene. Later it will be explained how to simplify 3D models. These techniques will be implemented in converting tool and demonstrating application. Methods for simplify 3D models will be tested for their speed and quality.
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Skeletal Animation for GPUengine
Minařík, Antonín ; Milet, Tomáš (referee) ; Starka, Tomáš (advisor)
This paper deals with studying skeletal animation techniques, and the subsequent design and implementation of skeletal animation extension for the GPUEngine library. The theoretical part describes the techniques of animation, skeletal animation and skinning. The following is an analysis of existing skeletal animation systems. The proposed solution seeks to reduce the data redundancy in the memory while rendering more skeletal models. According to the design a basic skeletal animation system has been implemented. Furthermore, a demonstration application has been created showing the skeletal system's use. The resulting skeletal system can be used in simple 3D applications and can serve as a basis for further works.
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3D Object Vizualization Represented by Boundary Points
Hezina, Luděk ; Herout, Adam (referee) ; Kršek, Přemysl (advisor)
The aim of my bachelor thesis was to create the system for visualization of 3D objects which are representated by boundary points. Thesis is written in C++ language. I have used the library OpenSceneGraph for creation of windows, manipulation with scene and for loading objects from external files. The system includes two integrated generators of implicit objects.
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GPU Raytracer for OSG
Kantor, Jiří ; Horváth, Zsolt (referee) ; Starka, Tomáš (advisor)
This work describes creation of a simple raytracer for OpenSceneGraph, which performs its operations on the graphics card. Things, that needed to be done in OpenSceneGraph in order to pass data to the GPU and also several ray-triangle intersection methods, are described in this work.
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Level of Detail (LOD) Algorithms in OpenSceneGraph Library
Koukolíček, Ondřej ; Kršek, Přemysl (referee) ; Pečiva, Jan (advisor)
The aim of this thesis is to explore and evaluate capabilities of the OpenSceneGraph library in the field of level of detail (LOD) algorithms. It contains introduction to the LOD issues and detailed description of techniques that are used in conjunction with this technology. Furthermore it analyses those tools available in OSG, which can be used to create an application utilizing LOD. The main part of the thesis is focused on description of design and implementation of application, which uses the LOD capabilities of OSG as well as own extension to these methods. In the conclusion, the resulting application is subjugated to a benchmark and the OpenSceneGraph librarys LOD capabilities are evaluated.
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Physical Simulation in Graphics Scene
Javorka, Marián ; Herout, Adam (referee) ; Pečiva, Jan (advisor)
This master's thesis deals with physical simulation of cars. Program is implemented in C++ using OpenSceneGraph and Bullet libraries, which are shortly introduced. The application is implemented as simple racing game for one or two players. Using a simple menu, the user can select a car and the weather, which dramatically affects the handling characteristics of vehicles. Setting weather to random is one of the options leading to a dynamic weather changes during the game. The application takes into account collisions among cars and collisions with the terrain and bars on a racing circuit.
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Comparison of Open Source Rendering Libraries
Záleta, Martin ; Herout, Adam (referee) ; Havel, Jiří (advisor)
The main purpose of this paper is to provide a detailed analysis of some of the major available open source rendering libraries with the emphasis on their notable characteristics, and an in-depth comparison among them with regards to their possible practical use. Specifically, the selected rendering libraries in this paper are the following - OpenSceneGraph, Ogre 3D, Irrlicht Engine, Crystal Space and OpenSG, but a sidenote is given to some of the others as well. Last but not least, self-made examples of their usage are also included, and are meant to demonstrate some of the mentioned characteristics and principles of the analysed libraries.
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