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Frameless Rendering
Krupička, Vojtěch ; Navrátil, Jan (referee) ; Havel, Jiří (advisor)
This master's thesis deals with the problem of real-time rendering of computer graphics using the method of frameless rendering} as counterpart to the traditional way, which is based on switching between two output buffers. Frameless rendering method is defined and studied in greater depth and its adaptive variant, which delivers better output quality without a~significant reduction of latency, is described in detail. In addition, this thesis describes the implementation of the application which has been developed to demonstrate the principle and functionality of the frameless rendering on the selected scenes. It also includes evaluation of performed tests focused to the output quality.
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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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Numerical implementation of equations for photon motion in Kerr spacetime
Bursa, Michal
Raytracing is one of the essential tools for accurate modeling of spectra and variability of various astrophysical objects. It has a major importance in relativisticenvironments, where light endures to a number of relativistic effects. Because the trajectories of light rays in curved spacetimes, and in Kerr spacetime in particular, are highly non-trivial, we summarize the equations governing the motion of photon\n(or any other zero rest mass particle) and give analytic solution of the equations thatcan be further used in practical computer implementations.
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Pathtracing on GPU
Hájek, Ondřej ; Lysek, Tomáš (referee) ; Polok, Lukáš (advisor)
This bachelor thesis focuses on acceleration of global illumination method called Pathtracing. The goal of this thesis is a demonstration and performance comparison of different implementations of this method on GPU as well as CPU. Implementation will compose of two scenes. One simpler to verify correctnes of used algorithm and one more complicated to demonstrate various effects. The effectiveness and efficiency of said implementations will be analyzed and compared. Additionally, future program expansion and improvements will be discussed.
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Visualization of 3D data in biomedical applications
Karzel, Michal ; Harabiš, Vratislav (referee) ; Štohanzlová, Petra (advisor)
This thesis describes the basic principle of optical coherence tomography and prepro- cessing of the measured raw data. Preprocessing is focused mainly on noise filtration, removing artifacts, normalization, conversion and compression of raw data. In this way preprocessed data is saved in a *. PFRG file as ”preprocessed fringe data”. Those pre- processed data will be visualised by simply software, which support three methods of visualisation. Volume data represented by voxels. Reconstruction of volume by marching cube algorithm. Cuts through volume along X, Y and Z axis.
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Fast Implementation of Geometric Algorithms
Krba, Martin ; Jošth, Radovan (referee) ; Havel, Jiří (advisor)
One of the most often used calculations in computer graphics is detection of collision between ray of light and triangle on the surface of object in 3D space. This frequent usage is motivation to search for the best methods for this calculations. This thesis contains explanation of basics of this topic and also testing of methods with real input data to better and accurate comparison.
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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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GPU Raytracer for OSG
Kantor, Jiří ; Horváth, Zsolt (referee) ; Starka, Tomáš (advisor)
This work describes creation of a simple raytracer for OpenSceneGraph, which performs its operations on the graphics card. Things, that needed to be done in OpenSceneGraph in order to pass data to the GPU and also several ray-triangle intersection methods, are described in this work.
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