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BRDF workshop
Matějka, Jiří ; Pelikán, Josef (advisor) ; Karlík, Ondřej (referee)
This thesis develops an application for interactive experiments with BRDF functions. Arbitrary BRDF function may be specified with an analytic formula, including arbitrary number of parameters. A simple scene is displayed, using specified BRDF. The parameters can be modified which has an immediate impact to the scene's appearance. The application can utilize a programmable GPU for high speed of rendering.
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Efficient visibility calculation for light transport simulation in participating media
Houška, Čestmír ; Křivánek, Jaroslav (advisor) ; Karlík, Ondřej (referee)
Title: Efficient visibility calculation for light transport simulation in participating media Author: Čestmír Houška Department / Institute: Department of Software and Computer Science Educa- tion Supervisor of the master thesis: doc. Ing. Jaroslav Křivánek, Ph.D. Abstract: This thesis investigates the use of acceleration methods for the testing of visibility in light transport calculation algorithms with the emphasis on conser- vativeness and low accelerated query overhead. Several published non-directional and directional distance field methods are presented with the description of their characteristic properties. Two of these methods are then implemented and thor- oughly tested in an existing rendering framework on a path tracing volumetric integrator as well as on an own implementation of a ray marching single scattering integrator. A method that further accelerates the original distance field methods by pre-caching results of some of the queries is also proposed, implemented and tested. Furthermore, several possible extensions to this method are outlined. Keywords: computer graphics, rendering, participating media, visibility
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Thaddaeus Hagecius ab Hayek and His Contribution to the Renaissance in Bohemia
Karlík, Ondřej ; Veverková, Kamila (advisor) ; Lášek, Jan Blahoslav (referee)
The dissertation begins with an introduction about Renaissance, because Thaddaeus Hagecius lived and worked in this age. Renaissance was both an age of faith in hermetic sciences and an age of important scientific discoveries which fundamentally influenced the transformation of cosmology. My intention is to explain the characteristics of this period in the beginning of the dissertation. The next chapter is mainly focused on Hagecius's biography and an overview of his main writings. At first, I dealt with Hagecius's youth and his studies in Bohemia and foreign countries. Afterwards, I mentioned the areas that Hagecius had developed and the writings that he had published about them. I have more thoroughly expanded Hagecius's activity in medicine and astronomy because they were the main areas of his research. In another part of the chapter, I have outlined the friendship between Hagecius and Brahe. I have closed the chapter with an explanation of Hagecius's reference to alchemy. In the third chapter of my dissertation, I have introduced Hagecius's scientific efforts in four areas. These are as follow-astronomy, medicine, botany and brewing, because Hagecius contributed to these four areas with an interesting manner. These areas also show the huge diversity of Hagecius's interests.
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Efficient visibility calculation for light transport simulation in participating media
Houška, Čestmír ; Křivánek, Jaroslav (advisor) ; Karlík, Ondřej (referee)
Title: Efficient visibility calculation for light transport simulation in participating media Author: Čestmír Houška Department / Institute: Department of Software and Computer Science Educa- tion Supervisor of the master thesis: doc. Ing. Jaroslav Křivánek, Ph.D. Abstract: This thesis investigates the use of acceleration methods for the testing of visibility in light transport calculation algorithms with the emphasis on conser- vativeness and low accelerated query overhead. Several published non-directional and directional distance field methods are presented with the description of their characteristic properties. Two of these methods are then implemented and thor- oughly tested in an existing rendering framework on a path tracing volumetric integrator as well as on an own implementation of a ray marching single scattering integrator. A method that further accelerates the original distance field methods by pre-caching results of some of the queries is also proposed, implemented and tested. Furthermore, several possible extensions to this method are outlined. Keywords: computer graphics, rendering, participating media, visibility
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Rendering of Gemstones
Krtek, Lukáš ; Pelikán, Josef (advisor) ; Karlík, Ondřej (referee)
The distinctive appearance of gemstones is caused by the way light reflects and refracts multiple times inside of them. The goal of this thesis is to design and implement an application for photorealistic rendering of gems. The most important effects we aim for are realistic dispersion of light and refractive caustics. For rendering we use well-known algorithm of path tracing with an experimental modification for faster computation of caustic effects. In this thesis we also design and implement a tool for generating polygonal models of gemstones based on a simple user description.
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BRDF workshop
Matějka, Jiří ; Pelikán, Josef (advisor) ; Karlík, Ondřej (referee)
This thesis develops an application for interactive experiments with BRDF functions. Arbitrary BRDF function may be specified with an analytic formula, including arbitrary number of parameters. A simple scene is displayed, using specified BRDF. The parameters can be modified which has an immediate impact to the scene's appearance. The application can utilize a programmable GPU for high speed of rendering.
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