National Repository of Grey Literature 18 records found  previous11 - 18  jump to record: Search took 0.00 seconds. 
Shadowing and Lighting Acceleration
Milet, Tomáš ; Kohout, Josef (referee) ; Kolivand, Hoshang (referee) ; Herout, Adam (advisor)
Cílem této práce je prezentovat metody pro akceleraci výpočtů stínů a osvětlení.  Práce se zabývá akcelerací na vzorek přesných stínů pomocí stínových těles na různých platformách. Obsahem práce je také zvýšení přesnosti stínových map a zvýšení přesnosti osvětlování scény s mnoha světly.
Fast Visualization of Precise Shadows Using Precomputed Scene Geometry
Mikeš, Tibor ; Milet, Tomáš (referee) ; Pečiva, Jan (advisor)
The aim of this bachelor's thesis is to design and implement an effective method of rendering per-pixel correct hard shadows in scenes with static geometry. The principle of the method is in separate rendering of shadowed and lit surfaces. Whether a triangle is in shadow or not is known prior to its rasterization, which allows the renderer to omit per-fragment shadow calculations. Rendering a scene in this way requires it to be preprocessed. Therefore, two possible ways of preprocessing the scenes are described and implemented as well.
Graphics Scene Visualization Using Shadow Maps
Plachý, Tomáš ; Polok, Lukáš (referee) ; Pečiva, Jan (advisor)
The thesis is focused on studying shadow generating techniques in graphics applications with main focus on shadow map techniques. The thesis includes implementation of improvement for shadow map technique in demonstration application and comparing shadowing techniques together.
Shadow Volumes in OpenGL
Salvet, Jan ; Pečiva, Jan (referee) ; Havel, Jiří (advisor)
This thesis is focused on one particular method of shadowing in computer graphics. It not only describes basic theory, but also deals with actual implementation using modern OpenGL. It includes performance tests of several versions of this method using a testing application. The results show clear advantage of computing shadows on graphics card.
Rendering of Shadows in Graphics Scenes Using Shadow Volumes
Starka, Tomáš ; Herout, Adam (referee) ; Pečiva, Jan (advisor)
This work concerns itself with choosen methods of shadows in computer graphics. In short it discuses both shadow maps and shadow volumes, with their advantages and disadvantages. Then it employs itself on shadow volumes and their implementation utilizing Open Scene Graph toolkit. It deals with z-pass and z-fail methods and some possible optimizations. Moreover, it contains measuring of FPS and comparison of fill consumption of the scene and shadow volumes on various scenes.
Methods for Soft Shadows Rendering
Ondruška, Jiří ; Polok, Lukáš (referee) ; Navrátil, Jan (advisor)
This thesis discusses two different methods for creating soft shadows. Shadow volumes and shadow mapping, more accurately Variance Soft Shadow Mapping. It presents theory for these shadow algorithms as well as theory for few others which are necessary for understanding. Further it describes how to implement these methods and evaluates these implementations. Shadow volumes are based on creating additional geometry to the scene which serves for specifying region of penumbra. VSSM algorithm is a improved version of classic shadow mapping.
Rendering of Shadows in a Scene with DirectX
Kobrtek, Jozef ; Havel, Jiří (referee) ; Navrátil, Jan (advisor)
This work discusses shadowing methods, analyses them and describes implementation in DirectX 11 API. Theoretical part describes historical evolution of shadow usage in 3D applications and also analyzes shadowing algorithms. This work compares 2 variants of shadow mapping algorithm for omnidirectional lights, based on cube mapping and paraboloid projection, on demo application using quality, performance and implementation aspects.
Shadow Techniques on Contemporary Hardware and Their Comparison
Tóth, Michal ; Polok, Lukáš (referee) ; Pečiva, Jan (advisor)
This master's project focuses on basic techniques of creating shadows in 3D computer graphics. Two basic techniques are compared. Those are shadow maps and shadow volumes. Another technique combining previouse two is proposed.

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