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Numerical Modelling of the Light Source
Pavelka, Adam ; Koňas,, Petr (referee) ; Kadlec, Radim (advisor)
The master’s thesis deals with photometry units used in light engineering. There are defined the methods of modelling the illumination systems, their advantages, disadvantages and possibilities of using. Furthermore, the thesis deals with modelling of two illumination systems by ray-tracing in programming environment of MATLAB. The master’s thesis describes the analysis of the problem and the program designing process. Acquired model results are then compared with the real measurements of both illumination systems which allow the discussion of the results and the deviations of the models.
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Room acoustic modeling
Bernát, Michal ; Balík, Miroslav (referee) ; Míča, Ivan (advisor)
This Master's Thesis deals with geometric modeling methods and theirs implementation in Octave (Matlab), which is ideal for the practical realization. The first part of the thesis is focused on a very simplified image source method, which is able to calculate and render the 2D impulse response of rectangular rooms. The next part is aimed on~the same method, but extended by three-dimensional simulation of polyhedral prism-shaped rooms. There is both an explanation of theoretical and mathematical aspects and a~documentation of the implemented source code. Extended image source method is able to generate sound representation of impulse response characteristics, and use it for auralization, which is achieved by using convolution of both the input sound source and the calculated impulse response. At the end there are two practical examples for both methods with explanatory illustrations.
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Graphics Intro 64kB Using Ray Tracing
Luňák, Miroslav ; Herout, Adam (referee) ; Jošth, Radovan (advisor)
This thesis is concerning the description of creation of graphic intro 64kB using ray tracing. The main focus is the problems and principles connected with the topic of the thesis. Further on, the thesis describes the actual realization of the application and the achieved results. The conclusion covers the evaluation of thesis and possible ways for further improvement of the project.
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Modelling of closed space acousticsby the beam method
Ryšavý, Marek ; Orlovský, Kristián (referee) ; Trzos, Michal (advisor)
The bachelor thesis describes the modeling of room acoustics using the ray tracing method. The first chapter deals with a general description of the basic properties of acoustic environment (wave acoustics, statistical acoustics and geometric acoustics). Then are described methods of calculating geometrical acoustics (image-source method, ray-tracing method and beam-tracing method). In the second chapter of this work is described in detail ray tracing methods and algorithm for calculate room acoustic using this method.
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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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Optimisation of light conditions in buildings
Vajkay, František ; Mohelníková, Jitka (advisor)
Building physics as a branch of architecture must ensure an indoor comfort of each user and inhabitant of a building object. This involves, acoustics, indoor thermal conditions and among others also daylighting and artificial lighting of buildings. Light as a particle and an electromagnetic wave, is required by the different aspects of the human organism. It allows the living beings to see, influences skin and bones, the biorhythms, etc. Therefore, it is necessary for the engineering community to predict the correct illuminance and luminance levels acting insides. The thesis deals with such issues. More precisely, it assesses the quality of design tools and methodologies, either against CIE reference cases described in CIE 171/2006 and against real measurements done over the working plane of an indoor space located in the attic of Building D of the Institute of Building Structures, Faculty of Civil Engineering, Brno University of Technology, too. The tools tested throughout the solution of the dissertation did involve three computer programs: RADIANCE, WDLS v3.1 and WDLS v4.1, and one numerographical approach, namely the Daniljuk’s innovated methodology (sometimes even combined with the theories of BRS). In addition several software’s have had been created alongside the process assessment, just to mention the “RADIANCE Script”, “RADIANCE Data Evaluation Script” or “MuuLUX“. The later was written as a communication software allowing the connection of the KONICA-MINOLTA T10 illuminance meter to a computer with the aim of data collection while long term observation. The solution did also require the establishment of a measuring element for the determination of the light reflectance values of surfaces. The solutions, results and conclusions do describe how well did the design approaches deal while predicting the resulting awaited daylight factor levels in points over the working plane.
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Graphics Intro 64kB Using Ray Tracing
Dočkal, Jiří ; Chudý, Peter (referee) ; Herout, Adam (advisor)
This thesis is concerned with the description of the aplication which was determined by the assignment of the bachelor thesis. The main focus are the problems and principles connected with the topic of the thesis. Further on, the thesis describes the actual realization of the aplication and the achieved results. The conclusion covers the evaluation of thesis and possible ways for further improvement of the project.
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Ray Tracing for Electron Microscope
Suchánek, Jan ; Lysek, Tomáš (referee) ; Čadík, Martin (advisor)
This thesis is pointed on simulation of electron microscope. It uses knowledge from ray-tracing methods and physically based rendering with physics of electron microscopy. The main object of this thesis is to create realistic simulator for electron microscope which can generate satisfying realistic images. This output can be used for another research in range of machine learning or microscope application development. This method should replace long and more expensive way of getting test images from real system for those research activities.
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Ray-Tracing Using SSE
Kučera, Jiří ; Herout, Adam (referee) ; Havel, Jiří (advisor)
This thesis describes the acceleration technique of ray-tracing method using SSE instruction set. Choosing the parallel tracing of four rays enclosed in one beam turned to be the best way of using SSE effectively. Also the vectorization of algorithms which are used in ray-tracing method was implemented. The solution of beam splitting was designed and implemented too. The time for rendering image was monitored in the tests - one for case when the beam includes all the rays and one for case when there is just one ray in the beam.
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Education Computer Program for Demonstration Methods of 3D Objects Illumination and Shading
Chvál, Vít ; Herout, Adam (referee) ; Zuzaňák, Jiří (advisor)
This work describes an Education Computer Program for Demonstration Methods of 3D Objects Illumination and Shading creation. There are in detail described lighting models in this text. There are Phong and Lambert models as representatives of empiric models and BRDF as representative of physical model. Next part of the text describes types of shading methods. You can find there constant, Gouraud and Phong method. Following part of the text discuss issues of Educational applications. The rest of the text is devoted to design and implementation of the application.
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