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Advanced Rendering Techniques in OpenGL 2.0
Salajka, Vojtěch ; Havel, Jiří (referee) ; Švub, Miroslav (advisor)
This thesis deals with the interactive computer graphics on programmable hardware. The usage of shaders for creation of graphic effects is demonstrated by examples. It is explained how to use OpenGL library and GLSL language for their implementation. A new 3D model format was developed for the purposes of the examples.
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Al-alloy die-castings for automotive industry
Havel, Jiří ; Nová, Iva (referee) ; Čech, Jaroslav (advisor)
This search is concentrated on Pressure-castings of aluminum alloys for the automotive industry. In the theoretical part of this topic is described in terms of technology for casting aluminum alloys with a focus on high-pressure casting of aluminum alloy AlSi9Cu3 and methods of detecting residual stress. In the experimental section is a sample of residual stress measurements on samples cast alloy AlSi9Cu3.
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Graphics Intro 64kB Using OpenGL
Ptáček, Lukáš ; Havel, Jiří (referee) ; Herout, Adam (advisor)
This work describes problems of creation of graphic intro of limited size. It discusses the design and creation of individual parts of intro. Describes the principle of procedural generation of objects and textures, simple physical simulation with particles, tree and vegetation generating, rendering water surface with reflection and glint and storm rendering. There is also described some processing power optimalizations.
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Polygonal Mesh Segmentation
Minařík, Vojtěch ; Havel, Jiří (referee) ; Španěl, Michal (advisor)
Bachelor's thesis deals with 3D model segmentation into particular meaningful segments. Method is based on algorithm described in article Protrusion-oriented 3D mesh segmentation The realized solution is based on assumption, that 3D models consist of a core and core attached protrusions. The segmentation algorithm consists of three main steps: core approximation, selection of salient points which indicate end of protrusion and assignment of points to appropriate segments. Implementation uses library CGAL which is useful for loading and manipulating 3D meshes.
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Fast Ray-Triangle Intersection
Horák, František ; Navrátil, Jan (referee) ; Havel, Jiří (advisor)
This work contains a few basic terms of analytical geometry. We mention some of ray-triangle intersection computation algorithms and present some use-case examples. We discuss capabilities of CUDA, optimization techniques of this architecture and implementation with focus on given issues. Algorithms of ray-triangle intersection are tested and results are discussed.
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Ray Tracing Using k-D Tree
Šilhavý, Miroslav ; Herout, Adam (referee) ; Havel, Jiří (advisor)
This thesis deals with ray tracing methods and their acceleration. It gives partial study and review of algorithms from classical ray shooting algorithm to recursive approach up to distributed ray tracing algorithm. Significant part of this thesis is devoted to BSP tree structure and its subclass of k-D tree, it shows simple algorithm for its construction and traversal. The rest of thesis is dealing with k-D tree construction techniques, which are based on the right choice of the splitting plane inside the every cell of k-D tree. The techniques upon the thesis is based on are space median, object median and relatively new cost model technique named SAH, otherwise as surface area heuristic. All three techniques are put into testing and performance comparison. In the conclusion the results of tests are reviewed, from where SAH is coming out as a winner.
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Rendering of Shadows in a Scene with DirectX
Kobrtek, Jozef ; Havel, Jiří (referee) ; Navrátil, Jan (advisor)
This work discusses shadowing methods, analyses them and describes implementation in DirectX 11 API. Theoretical part describes historical evolution of shadow usage in 3D applications and also analyzes shadowing algorithms. This work compares 2 variants of shadow mapping algorithm for omnidirectional lights, based on cube mapping and paraboloid projection, on demo application using quality, performance and implementation aspects.
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Ray-Tracing Using SSE
Skoták, Jakub ; Švub, Miroslav (referee) ; Havel, Jiří (advisor)
Ray-tracing is one of realistic methods of computer visualization. This method is highly computationally intensive and there is no hardware accelerator for it. This labour describes the acceleration of ray-tracing using the SSE instruction set.
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Medical Data Rendering in Real-Time
Lengyel, Kristián ; Havel, Jiří (referee) ; Jošth, Radovan (advisor)
This thesis deals with design and implementation of an application for medical data imaging in real-time. The first part of project is focused on methods for obtaining data in medical practice and visualization of large volume data on computer using familiar rendering approaches. Similar applications are used outside of medicine in other fields, such as chemistry to display molecular structures or microorganisms. Another part of project will focus on benefits of visualization of volumetric data using programmable hardware and new methods of parallelization of algorithms on graphics card using CUDA technology, and OpenCL. The resulting application will display the volume of medical data based on selected method accelerated by programmable shaders, and time-consuming operations will be paralleled on graphics card.
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Uniform Marker Field on a Cylinder
Kříž, Radim ; Havel, Jiří (referee) ; Herout, Adam (advisor)
This work presents a new extension for Uniform Marker Field, which is able to detect UMF on the cylinder. First part of the text deals with Augmented reality and focuses on systems using markers. It discusses the actual state-of-the-art systems and its possibilities. After that it focuses more deeply on the marker system Uniform marker field and its grayscale variants. Next part of the work describes properties of the cylinder projected in real space. Important properties for detecting are discussed in detail. Then the proposal and description of detection algorithm is presented. Implementation of algorithm is tested and evaluated on the very end of this thesis.
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