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Photorealistic Rendering
Lysek, Tomáš ; Kučiš, Michal (referee) ; Zemčík, Pavel (advisor)
The thesis describes implementation of photorealistic method. The first part describes the procedures and techniques, that are used to display photorealistic scenes such as raytracing, radiosity or photon mapping and other techniques used in computer graphics. The second part of thesis is focused on evaluation of current state of problem. In this part is also described reason of choosing this topic and thesis assignment is there more specified. The last part of thesis is focused on implementation details of photorealistic method.
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Realistic Rendering of Atmospheric Phenomena
Sabela, Ondřej ; Karas, Matej (referee) ; Vlnas, Michal (advisor)
The aim of this thesis is to develop a GPU accelerated computer program which is able to simulate light scattering in the Earth's atmosphere and clouds using the simplest possible combination of various realistic rendering techniques. A detailed explanation of the physical and phenomenological background of the basic characteristics of both solid and translucent materials is included. Physically based rendering methods which are able to simulate such phenomena are presented along with several optimizations, including precomputation and lookup tables, with a focus on functional fidelity to real-world principles. The presented solution is based on data from real-world microphysical measurements. The resulting outdoor scene images can be used as background environment maps in 3D modelling and design software. The open source code can also serve as a starting point for describing the implementation of the presented rendering techniques.
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Realistic Rendering of Smoke and Clouds
Kopidol, Jan ; Žák, Pavel (referee) ; Jošth, Radovan (advisor)
This work discourses about methods of rendering volumetric data such as clouds or smoke in computer graphics and implementation of this feature to existing application. The first part is summary of techniques and tricks used in computer graphics to display such objects in scene, their pros and cons and the most used techniques of displaying volumetric data. Next part is more closely focused to choosed technique of rendering volumetric data with consideration of light behavior inside the volume (also called participating media) and basic relationships used used in computation. In following part of work there is short list of applications - renderers used to realistic rendering of scene, which are suitable for implementation of selected volumetric data rendering algorithm. Selected application - Blender is describled more deeply including its inner structure, especially rendering engine. Last part of work is dedicated to design, implementation and integration of rendering algorithm itself.
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Photorealistic Rendering
Vlnas, Michal ; Lysek, Tomáš (referee) ; Zemčík, Pavel (advisor)
This thesis describes proposal and implementation of a novel global illumination technique using bidirectional path tracing with multiple importance sampling. In the first part, basic informations and techniques are described to explain photorealistic graphic principles. Also, often used methods solving global illumination are shown. The following part summarizes current state of development. Last two parts are focused on mathematical derivation of the bidirectional path tracing and implementation itself using the CPU.
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Realistic Visualisation of Alcoholic Beverages
Bartl, Vojtěch ; Kučiš, Michal (referee) ; Polok, Lukáš (advisor)
The object of thesis was to make a simple program for visualisation of alcoholic beverages. There was used a global illumination method raytracing, which serve the purpose to visualize 3D scene in photorealistic quality. The rays sent to the scene reflects and refracts on the interfaces and getting information about color of materials. Finally the ray determine the color of pixel. It's a very complicated process where it is necessary to solve passing rays through different interfaces.
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Realistic Rendering of Atmospheric Phenomena
Sabela, Ondřej ; Karas, Matej (referee) ; Vlnas, Michal (advisor)
The aim of this thesis is to develop a GPU accelerated computer program which is able to simulate light scattering in the Earth's atmosphere and clouds using the simplest possible combination of various realistic rendering techniques. A detailed explanation of the physical and phenomenological background of the basic characteristics of both solid and translucent materials is included. Physically based rendering methods which are able to simulate such phenomena are presented along with several optimizations, including precomputation and lookup tables, with a focus on functional fidelity to real-world principles. The presented solution is based on data from real-world microphysical measurements. The resulting outdoor scene images can be used as background environment maps in 3D modelling and design software. The open source code can also serve as a starting point for describing the implementation of the presented rendering techniques.
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BRDF Editor
Waltl, Jan ; Pelikán, Josef (advisor) ; Kondapaneni, Ivo (referee)
Title: BRDF Editor Author: Jan Waltl Department: Department of Software and Computer Science Education Supervisor: RNDr. Josef Pelik'an, Department of Software and Computer Science Education Abstract: The goal of this thesis is to create a working environment for the development and testing of bidirectional reflectance functions (BRDFs). The result of our work is a graphical application that offers tools to write these BRDFs, see how they behave on dynamic 2D graphs and in simple scenes. To achieve this, we created a general framework for physically based rendering algorithms. With the help of accelerating in hardware, in particular graphics cards(GPUs), we use OpenCL API to boost performance and allow interactive work with the developed functions. As part of the work, we implemented the path tracing algorithm capable of rendering realistic-looking scenes with indirect lighting from area lights and an environment light. The used algorithm uses importance sampling to greatly improve convergence speed and allows writing these custom sampling strategies for the written BRDFs and seeing how they match the BRDF, thus testing their effectiveness. Keywords: BRDF OpenCL photo-realistic rendering path tracing GPU iii
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Photorealistic Rendering
Vlnas, Michal ; Lysek, Tomáš (referee) ; Zemčík, Pavel (advisor)
This thesis describes proposal and implementation of a novel global illumination technique using bidirectional path tracing with multiple importance sampling. In the first part, basic informations and techniques are described to explain photorealistic graphic principles. Also, often used methods solving global illumination are shown. The following part summarizes current state of development. Last two parts are focused on mathematical derivation of the bidirectional path tracing and implementation itself using the CPU.
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Realistic Visualisation of Alcoholic Beverages
Bartl, Vojtěch ; Kučiš, Michal (referee) ; Polok, Lukáš (advisor)
The object of thesis was to make a simple program for visualisation of alcoholic beverages. There was used a global illumination method raytracing, which serve the purpose to visualize 3D scene in photorealistic quality. The rays sent to the scene reflects and refracts on the interfaces and getting information about color of materials. Finally the ray determine the color of pixel. It's a very complicated process where it is necessary to solve passing rays through different interfaces.
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Photorealistic Rendering
Lysek, Tomáš ; Kučiš, Michal (referee) ; Zemčík, Pavel (advisor)
The thesis describes implementation of photorealistic method. The first part describes the procedures and techniques, that are used to display photorealistic scenes such as raytracing, radiosity or photon mapping and other techniques used in computer graphics. The second part of thesis is focused on evaluation of current state of problem. In this part is also described reason of choosing this topic and thesis assignment is there more specified. The last part of thesis is focused on implementation details of photorealistic method.
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