<p>The different mapping techniques that are used increases the details on surfaces without increasing the number of polygons. Image Based Sculpting tools in the program Modo and Z-Brush is used to create folds and wrinkles from photographs of actual fabrics instead of trying to create these shapes by modeling them. This method makes it easier to achieve photorealistic renderings and produce as realistic fabric dynamics as possible when they are applied on objects.</p>

As técnicas para síntese de textura em Computação Gráfica constituem um grupo bem específico cujo objetivo principal é a inclusão, na imagem, de alguma informação visual que aumente a percepção de realismo. São identificadas técnicas para síntese de textura com características favoráveis a implementação num ambiente limitado cujo aspecto central é a placa de vídeo VGA, a saber: mapeamento de textura, "bump mapping" e textura sólida. Um sistema para visualização de objetos simples com aplicação das técnicas selecionadas é descrito e implementado. Várias imagens são sintetizadas e os resultados analisados considerando-se o nível de realismo atingido. É explorado o uso de padrões para incremento da resolução visual das imagens em conjunto com a técnica de mapeamento de textura. Apresenta-se uma série de definições para textura das áreas de Computação Gráfica, Psicologia e Processamento de Imagens. Estas definições se integram e possibilitam a formação de um conceito genérico sobre o assunto. Os modelos e técnicas para descrição e síntese de texturas são apresentados, identificando-se as tendências nesta área. / The Computer Graphics texture synthesis techniques are a well defined group which main goal is to add visual information to the image. This visual information will increase the realism. Texture synthesis techniques for implementation in a limited environment are identified, namely texture mapping, bump mapping and solid texture. The main aspect of the environment is the VGA video card. A system is described and implemented to visualize simple objects where the selected texture synthesis techniques were applied . Some images are synthesized and the results are analysed. It is explored the use of patterns to increase images visual resolution in conection with texture mapping technique. It is presented a set of texture definitions from Computer Graphics, Psychology and Image Processing studies. These definitions are integrated and make possible to form a generic concept about the subject. Models and techniques for texture description and synthesis are presented. This survey identified trends in this area.

As técnicas para síntese de textura em Computação Gráfica constituem um grupo bem específico cujo objetivo principal é a inclusão, na imagem, de alguma informação visual que aumente a percepção de realismo. São identificadas técnicas para síntese de textura com características favoráveis a implementação num ambiente limitado cujo aspecto central é a placa de vídeo VGA, a saber: mapeamento de textura, "bump mapping" e textura sólida. Um sistema para visualização de objetos simples com aplicação das técnicas selecionadas é descrito e implementado. Várias imagens são sintetizadas e os resultados analisados considerando-se o nível de realismo atingido. É explorado o uso de padrões para incremento da resolução visual das imagens em conjunto com a técnica de mapeamento de textura. Apresenta-se uma série de definições para textura das áreas de Computação Gráfica, Psicologia e Processamento de Imagens. Estas definições se integram e possibilitam a formação de um conceito genérico sobre o assunto. Os modelos e técnicas para descrição e síntese de texturas são apresentados, identificando-se as tendências nesta área. / The Computer Graphics texture synthesis techniques are a well defined group which main goal is to add visual information to the image. This visual information will increase the realism. Texture synthesis techniques for implementation in a limited environment are identified, namely texture mapping, bump mapping and solid texture. The main aspect of the environment is the VGA video card. A system is described and implemented to visualize simple objects where the selected texture synthesis techniques were applied . Some images are synthesized and the results are analysed. It is explored the use of patterns to increase images visual resolution in conection with texture mapping technique. It is presented a set of texture definitions from Computer Graphics, Psychology and Image Processing studies. These definitions are integrated and make possible to form a generic concept about the subject. Models and techniques for texture description and synthesis are presented. This survey identified trends in this area.

As técnicas para síntese de textura em Computação Gráfica constituem um grupo bem específico cujo objetivo principal é a inclusão, na imagem, de alguma informação visual que aumente a percepção de realismo. São identificadas técnicas para síntese de textura com características favoráveis a implementação num ambiente limitado cujo aspecto central é a placa de vídeo VGA, a saber: mapeamento de textura, "bump mapping" e textura sólida. Um sistema para visualização de objetos simples com aplicação das técnicas selecionadas é descrito e implementado. Várias imagens são sintetizadas e os resultados analisados considerando-se o nível de realismo atingido. É explorado o uso de padrões para incremento da resolução visual das imagens em conjunto com a técnica de mapeamento de textura. Apresenta-se uma série de definições para textura das áreas de Computação Gráfica, Psicologia e Processamento de Imagens. Estas definições se integram e possibilitam a formação de um conceito genérico sobre o assunto. Os modelos e técnicas para descrição e síntese de texturas são apresentados, identificando-se as tendências nesta área. / The Computer Graphics texture synthesis techniques are a well defined group which main goal is to add visual information to the image. This visual information will increase the realism. Texture synthesis techniques for implementation in a limited environment are identified, namely texture mapping, bump mapping and solid texture. The main aspect of the environment is the VGA video card. A system is described and implemented to visualize simple objects where the selected texture synthesis techniques were applied . Some images are synthesized and the results are analysed. It is explored the use of patterns to increase images visual resolution in conection with texture mapping technique. It is presented a set of texture definitions from Computer Graphics, Psychology and Image Processing studies. These definitions are integrated and make possible to form a generic concept about the subject. Models and techniques for texture description and synthesis are presented. This survey identified trends in this area.

The different mapping techniques that are used increases the details on surfaces without increasing the number of polygons. Image Based Sculpting tools in the program Modo and Z-Brush is used to create folds and wrinkles from photographs of actual fabrics instead of trying to create these shapes by modeling them. This method makes it easier to achieve photorealistic renderings and produce as realistic fabric dynamics as possible when they are applied on objects.

The goal of this thesis was to create graphical demo in OpenGL, which would appropriately react on music, which is inseparable part of graphical demos. Work consists of two main parts, first is programming of real-time graphical engine, second is creating graphical demo which would run on graphical engine created in first part. First part focues on programming of OpenGL based application, which would render scene in real-time using techniques from computer graphics. Second part focuses mainly on graphical activity, which includes 3D modelling, texturing, creating animation and connection to music (reaction of environment and animations to changes in music)

Volume rendering is one of the branches of scientific visualization. Its popularity has grown in the recent years, and due to the increase in the computation speed of the graphics hardware of the desktop systems, became more and more accessible. Visualizing volumetric datasets using volume rendering technique requires a large amount of trilinear interpolation operations that are computationally expensive. This situation used to restrict volume rendering methods to be used only in high-end graphics workstations or with special-purpose hardware. In this thesis, an application tool has been developed using hardware accelerated volume rendering techniques on commercial graphics processing devices. This implementation has been developed with a 3D texture based approach using bump mapping for building an illumination model with OpenGL API. The aim of this work is to propose visualization methods and tools for rendering medical image datasets at interactive rates. The methods and tool are validated and compared with a commercially available software.

The aim of the master's thesis is to create a graphic intro with the limited size of 64kB. Brief history of a demoscene and the graphics library OpenGL is introduced in the following text. The main part of the work is a description of minimal graphics techniques used in a creative process and their further application in the final programme.

Tato práce popisuje přehled standardních a pokročilých metod používaných k diagnose glaukomu v ranném stádiu. Na základě teoretických poznatků je implementován internetově orientovaný informační systém pro oční lékaře, který má tři hlavní cíle. Prvním cílem je možnost sdílení osobních dat konkrétního pacienta bez nutnosti posílat tato data internetem. Druhým cílem je vytvořit účet pacienta založený na kompletním očním vyšetření. Posledním cílem je aplikovat algoritmus pro registraci intenzitního a barevného fundus obrazu a na jeho základě vytvořit internetově orientovanou tři-dimenzionální vizualizaci optického disku. Tato práce je součásti DAAD spolupráce mezi Ústavem Biomedicínského Inženýrství, Vysokého Učení Technického v Brně, Oční klinikou v Erlangenu a Ústavem Informačních Technologií, Friedrich-Alexander University, Erlangen-Nurnberg.

This thesis deals with the creation of the intro with limited size. This work describes methods for reducing the size of the final application. The main part describes methods for generating graphic content and methods for its animation. It deals with creation of textures and geometry. Another part is aimed on the physical simulation of particle and elastic systems.