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Lightmap Generation Tool
Růžička, Tomáš ; Pečiva, Jan (referee) ; Polok, Lukáš (advisor)
This bachelor's thesis deals the design and implementation of a Lightmap Generation Tool. The aim of this thesis is to describe and demonstrate all steps which are necessary for lightmap creation, specifically unwrapping 3D object geometry process and consequently shading it by the ray-tracing method. The scene system and the used engine are also described in this thesis. This work is concluded by a several experiments, along with image documentation, followed by the possibilities of the future work.
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Fast Ray-Scene Intersection
Stříž, Martin ; Zemčík, Pavel (referee) ; Herout, Adam (advisor)
Ray-tracing of 3-D scene is one of the contemporary used rendering methods. Altough it is not a photorealistic method, it produces results with high image quality. Main disadvantage of this method is that it needs a large amount of processing power. That is why various optimalizations must be implemented. This thesis is focused on spatial subdivision optimalizations, namely BSP and KD trees, and their comparsion.
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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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"Fisheye" Camera Projection
Macík, Pavel ; Juránek, Roman (referee) ; Seeman, Michal (advisor)
The thesis describes theoretical fundamentals of optics and problems of ray-tracing method, ray-triangle intersection computation included. Next section describes concept of three different camera models for ray-tracing method - plain camera, pinehole camea and spherical camera (fish-eye). The thesis comparse properties and capabilities of camera models and their effect to projected image of a scene. The program for raytracing was implemented for purposes of the thesis including implementation of camera models described in the thesis.
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Path Tracing on GPU
Novák, David ; Milet, Tomáš (referee) ; Tóth, Michal (advisor)
The aim of this bachelor's thesis is an implemetation and following acceleration of Path Tracing algorithm. This algorithm will be implemented on the GPU using OpenGL. Above rendered scene will be built Octree data structure. Then the acceleration, which was achieved using this data structure, will be measured.
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Photorealistic Rendering
Melcer, Pavel ; Lysek, Tomáš (referee) ; Zemčík, Pavel (advisor)
This bachelor thesis deals with the realistic rendering of 3D scenes, which describes the procedures leading to the photorealistic image. First are mentioned ways to definition objects, how the scene is rendered on screen, the types of light source and surface characteristics of materials. The work is also a description of the local shading model, optical phenomena and the methods used to realistically display (raytraycing, pathtraycing, radiosity and photon mapping). Next part mentions the reason for choosing the topic and description of implementation methods raytraycing and photon mapping.
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Data structures for rendering non-polygonal geometry
Kuckir, Ivan ; Křivánek, Jaroslav (advisor) ; Vorba, Jiří (referee)
In modern 3D graphics, scenes made of triangles are usually used, combined with methods based on ray tracing. Hierarchical data structures, called accelerating trees, are often used to speed up the search for intersection between ray and the scene. When testing the best current methods with non-polygonal geometry (line segments), we have found out that those structures cannot build an effective tree in many cases. The aim of this work is to formulate the problem mathematically. Thanks to this, the whole subject becomes more transparent and we can see the shortcomings of current methods, which have not yet been pointed out. At the result, we develop an algorithm which generalizes all current methods, which is not dependent on geometry and directly shows the space for improvement.
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Rendering of Voxel-Based Scenes Using Real-Time Ray Tracing
Menšík, Jakub ; Milet, Tomáš (referee) ; Matýšek, Michal (advisor)
The aim of this work was to create a program to visualize voxel scenes in real time using ray tracing. It included the study of various methods of such a rendering with a focus on shadows. The solution was created using Unity engine and experimental packages Unity Jobs and Burst. The thesis presents multiple ray tracing passes and SVGF technique, that is used to turn a noisy input into full edge-preserving image. The final program is able to render hard shadows, soft shadows, and ambient occlusion at speed of fifty frames per second.
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Real-Time Ray Tracing
Jadavan, Rostislav ; Španěl, Michal (referee) ; Herout, Adam (advisor)
This work deals with image rendering using raytracing in realtime. After short introduction to raytracing, different technics to compute raytracing in realtime is described. Most of them can be aplied to current computers. Last part shows implementation and test results.
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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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